Debugging is the process of finding and resolving errors or defects in a system, application, or computer code. It is an essential tool to ensure the development process runs smoothly and efficiently. A Debugging Expert has many years of experience working with debugging, troubleshooting, and software testing. They use a variety of tools and techniques to identify errors. It can help optimize your system, find any underlying issues, and enhance your overall user experience.

The expertise that our Debugging Expert can offer you is invaluable:

- Help debug existing applications and making them more efficient

- Troubleshoot issues within applications

- Resolve technical problems with code optimization

- Identify any potential security vulnerabilities

- Identify and resolve potential bug issues

Here's some projects that our Debugging Experts made real:

  • Solving complex code problems in multiple languages such as C++, Java, Python and Swift
  • Debugging application functionality across various software platforms
  • Resolving geolocation and Woocommerce issues
  • Enhancing the security of an existing system by identifying weak points in the source code
  • Fixing errors involving notification mechanisms based on given IDs

At Freelancer.com our expert Debugging Expert has consistently delivered excellent results to many satisfied clients. Our dedication to proactively finding potential problems is why so many companies choose us. If you're looking for a reliable professional to streamline your applications or fix errors within them then invite you to post your project and hire a Debugging Expert on Freelancer.com today!

From 36,417 reviews, clients rate our Debugging Experts 4.9 out of 5 stars.
Hire Debugging Experts

Debugging is the process of finding and resolving errors or defects in a system, application, or computer code. It is an essential tool to ensure the development process runs smoothly and efficiently. A Debugging Expert has many years of experience working with debugging, troubleshooting, and software testing. They use a variety of tools and techniques to identify errors. It can help optimize your system, find any underlying issues, and enhance your overall user experience.

The expertise that our Debugging Expert can offer you is invaluable:

- Help debug existing applications and making them more efficient

- Troubleshoot issues within applications

- Resolve technical problems with code optimization

- Identify any potential security vulnerabilities

- Identify and resolve potential bug issues

Here's some projects that our Debugging Experts made real:

  • Solving complex code problems in multiple languages such as C++, Java, Python and Swift
  • Debugging application functionality across various software platforms
  • Resolving geolocation and Woocommerce issues
  • Enhancing the security of an existing system by identifying weak points in the source code
  • Fixing errors involving notification mechanisms based on given IDs

At Freelancer.com our expert Debugging Expert has consistently delivered excellent results to many satisfied clients. Our dedication to proactively finding potential problems is why so many companies choose us. If you're looking for a reliable professional to streamline your applications or fix errors within them then invite you to post your project and hire a Debugging Expert on Freelancer.com today!

From 36,417 reviews, clients rate our Debugging Experts 4.9 out of 5 stars.
Hire Debugging Experts

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    52 jobs found

    A critical bug has surfaced in one of the open-source tools that underpins our daily workflow, and I need a sharp set of eyes to track it down and squash it. The issue manifests as an unexpected crash during routine operations; logs point to a memory-handling fault, but the exact trigger remains elusive. Here’s the flow I have in mind: • Reproduce the bug on your local environment so we can confirm we’re seeing the same failure. • Trace the root cause—code review, breakpoints, anything that helps narrow the faulty module. • Craft a clean, well-commented patch that follows the project’s contribution guidelines. • Prove the fix: unit tests, regression checks, and a short write-up on how the solution eliminates the crash without side effects....

    $19 / hr Average bid
    $19 / hr Avg Bid
    25 bids

    I’m enhancing a Fallou 76 -based fan project and need a seasoned low-level C++ developer who feels at home in x64 Windows internals. Your single mission: refine an existing Scaleform initialization hook (F4SE) so it fires correctly on the new version od the game. That means you have to update the game's memory offsets so it can work. You can look at the working implementation of the dll, to check the changes. What’s already done • Whole hooking scaffold is coded and compiles cleanly. It is a F4SE/SFE forked project for a Fallout76 game Link to the project Has been updated and forked. I wilk provide younthe Access to the updated version od the repo. • Relocation-aware trampolines are in place; they simply point to outdated addresses. What I give you: Acce...

    $145 Average bid
    NDA
    $145 Avg Bid
    20 bids

    My WordPress site runs an old, non-updatable version of Elementor and both embedded contact forms throw a specific error as soon as the Send button is pressed. Pages load perfectly; the problem appears only on submission. I don’t need a rebuild or a plugin overhaul—just get at least one of these existing Elementor forms to submit successfully and deliver the messages to my mailbox. Rolling back or upgrading the entire site isn’t an option right now, so the fix must work with the present Elementor version and the active theme. Deliverable: • A working contact form on the live site, tested end-to-end with a confirmation message and email delivery. Once I click Send and receive the test email without that error, the job is done.

    $28 Average bid
    $28 Avg Bid
    101 bids

    I need a developer to create a patch that will allow Microsoft PhotoDraw v.2 to run on Windows 10. The program currently does not open at all on this OS. Requirements: - Experience with Windows application compatibility - Knowledge of legacy software and Windows APIs - Proficiency in programming languages such as C++ or C# Ideal Skills and Experience: - Familiarity with Microsoft PhotoDraw or similar graphic design software - Previous experience creating patches or compatibility layers for older software - Strong problem-solving skills and attention to detail Please provide examples of similar work done.

    $141 Average bid
    $141 Avg Bid
    21 bids

    I need an embedded engineer to help safely connect a PCB to a lead-acid battery pack in series and integrate 4 external sensors (temperature, humidity, water presence, etc.). The system must read data in Arduino IDE and, if possible, send it to an existing telemetry endpoint (HTTP/MQTT). Scope: Safe wiring from battery pack to PCB Best way to connect and mount sensors Connector and grounding recommendations Simple Arduino example to read sensors and output/send data Experience with ESP32, Arduino, sensors, and battery-powered systems required.

    $40 Average bid
    $40 Avg Bid
    15 bids
    Fix Manage System
    6 days left
    Verified

    I need someone fluent in Python framework internals. • trace why the report returns no lines, • inspect tax mappings, fiscal positions, and journal settings for inconsistencies, • patch or re-configure the modules so the report shows correct figures, • validate that other reports still behave, and • leave me with a short note on what broke and how to avoid it next time. Please plan to work directly on the live environment (we can clone to a staging branch first if you prefer) and keep downtime to a minimum. Solid, well-commented code or configuration changes and a concise hand-off summary will mark the task complete. Successful collaboration here could turn into ongoing maintenance work.

    $175 Average bid
    $175 Avg Bid
    116 bids

    My WordPress homepage is throwing the dreaded “There has been a critical error on this website” message, yet every other page still loads. The problem presents as a design / layout failure—not a total site crash—and I haven’t installed or updated any plugins or themes recently. I need you to track down the root cause (template conflict, corrupted CSS, rogue PHP call—whatever it is) and restore the homepage so it displays exactly as it did before the issue appeared. No redesign is required, just a clean, stable fix. Deliverables • Identify the underlying error and resolve it so the homepage renders normally on desktop and mobile. • Provide a brief log of what you changed or removed. • Supply any edited theme or CSS files. Once th...

    $21 Average bid
    $21 Avg Bid
    107 bids

    My setup is an ESP32 wired to a 2.8-inch ILI9341 LCD (I may swap to the 3.2-inch variant; both share the same driver and pinout). All images sit on an SD card; more than fifty of them may be shown . I need a complete MicroPython solution that pulls each JPG straight from the card and pushes it to the display with no intermediate PC-side conversion. Core needs • Initialize the ILI9341 (ST7789) over SPI, handle 320×240 resolution, and work with both display sizes out of the box. • Mount the SD card, scan a folder, and stream-decode each JPG so the ESP32’s RAM footprint stays within limits. • Cycle through every file in the list inside an endless loop; I’ll decide the delay between frames in a simple variable (e.g., DELAY_MS). • Show each image f...

    $45 Average bid
    $45 Avg Bid
    23 bids

    I am currently using Geo my WP, but I want to switch to WP Go Maps with the Pro Add on, and I’d like to configure the map with the following behavior: My website introduces many attractions around the world. For example, let’s say I currently have four attractions posted: Attraction A, B, C, and D, and they are all located close to one another. • When I’m viewing the page for Attraction A, the map should display: o Attraction A using Icon 1 o The other three attractions (B, C, and D) using Icon 2 • When I’m viewing the page for Attraction B, the map should display: o Attraction B using Icon 1 o A, C, and D using Icon 2 This is similar to what TripAdvisor does — for example: The main attraction shows with a unique icon, while nearby attractions appea...

    $21 Average bid
    $21 Avg Bid
    53 bids

    I’m running a Laravel 10 bulk-media sender that talks to WhatsApp Business Cloud through a webhook. Whenever the API answers with HTTP 429, the webhook does mark the message as failed, yet the queued retry flow (RetryFailedWhatsAppJob on Redis/cloud queue) rarely fires, and when it does, the image-ID matching logic sometimes mis-aligns. The result is missed retries or, worse, duplicate sends. Here’s what needs to happen: • Repair the webhook callback so the media object returned by WhatsApp is always matched to the correct outbound record. • Ensure the job is dispatched, picked up, and processed on the existing Redis-backed queue every time a 429 occurs, honouring the current attempt counter. • Implement a reliable back-off for those 429 responses so we r...

    $20 Average bid
    $20 Avg Bid
    23 bids

    My stock-trading web app is showing real-time prices that don’t match the figures streaming through my broker’s terminal. The terminal’s feed is correct; the web app injects incorrect numbers and they drift further off the longer the session stays open. I need someone who has already debugged exchange or broker APIs, websocket feeds, or similar market-data pipelines and can pinpoint why the values pushed to the browser diverge. You may have to inspect the feed handler, caching logic, time-sync, or any rounding and conversion routines in the JavaScript front end as well as the server-side code. Acceptance will be simple: with the fix in place, the web app must display the same tick-for-tick price as the broker’s terminal during a live market session. If you&rsquo...

    $17 Average bid
    $17 Avg Bid
    13 bids

    I am developing a Cabal Online Private MMORPG (EP 35 +). The system works through .so library injection into the game server process, and includes: Advanced C++ development Memory hooks and offset manipulation Packet interception and handling (C2S / S2C) Internal game structure interaction Modular plugin system JSON-based configuration Linux-based deployment I am looking for an experienced developer to help expand, stabilize, and improve this system. - Technical Requirements Strong C++ (advanced level); Linux development experience; Memory manipulation (pointers, offsets); Hooking / detours; Reverse engineering knowledge; Networking and protocol understanding; Advanced debugging skills; Nice to have: Experience with MMO private servers; Familiarity with Cabal, MU Online, Ragnarok, o...

    $3950 Average bid
    $3950 Avg Bid
    24 bids

    Box for 70000 tunnels with PCI transaction in process. View to process in command line. Sertificates installed. Cheap setup. Fast installation. Connections documented. Drop and go for dedicated box setup. Url for inbound and outbound transactions. User and pw. Tunnelling opponent access only. Four certs. Install included.

    $19 Average bid
    $19 Avg Bid
    13 bids
    Fix PHP Admin Panel Bugs
    3 days left
    Verified

    Our PHP-based admin panel has suddenly become unreliable inside the User Management area. I can no longer add, edit, or delete users, role and permission assignments fail to save, and the user lists sometimes come up blank. I haven’t caught any clear error messages yet, so you’ll need to trace the problem directly in the code or logs. What I need from you is a quick, surgical repair: locate the root cause, patch the broken functions, and confirm that all three actions—create/update/delete users, assign roles correctly, and display user data—work again without introducing new issues elsewhere. You will have SSH/FTP access to the server, the Git repo, and a staging database to test against. Once everything is stable on staging, I’ll roll it to production. Ple...

    $18 Average bid
    $18 Avg Bid
    57 bids

    I am seeking an expert WordPress plugin developer to build a professional-grade, cross-browser cookie cleaner that gives administrators granular control over which specific cookies are deleted when users log out. This is not a simple "delete everything" plugin—existing solutions fail because they either rely exclusively on the Clear-Site-Data header (which does not work on Safari, iOS browsers, or Edge Legacy), or they lack a proper admin interface for selective deletion, or they cannot handle HttpOnly cookies (like WordPress authentication cookies) which JavaScript cannot touch. I need a four-layer hybrid solution that: (1) sends the Clear-Site-Data header only to supporting browsers (Chrome, Firefox, Edge Chromium), (2) performs server-side PHP deletion of HttpOnly cookie...

    $20 Average bid
    $20 Avg Bid
    40 bids

    I'm seeking an experienced C++ developer to write a patch for an old Windows 98/XP game to make it stable on Windows 10. The game currently crashes or freezes during gameplay, seemingly at random after playing for a while. The game is designed for 32bit, not 16, so it should probably be a bit easier. But I have very little knowledge of coding Requirements: - Expertise in C++ - Experience with legacy software and Windows compatibility issues - Ability to diagnose and fix crashes in games Ideal Skills: - Game development background - Familiarity with Windows 10 internals - Strong debugging skills

    $514 Average bid
    $514 Avg Bid
    55 bids
    Lovable Live Preview Fix
    3 days left
    Verified

    There is the Issue in Live Preview. There is no issue in Code. Check in to the Call and Fix it. Time : 1 Day

    $11 Average bid
    $11 Avg Bid
    32 bids
    X86 Assembly Coding Support
    3 days left
    Verified

    I’m integrating a small yet critical X86 routine into a larger, production-grade application and need a seasoned assembly programmer to jump in quickly, finish the code, and prove it works with a clear screenshot of the routine executing correctly. You will receive my current source and a brief on the expected behaviour. Tweak, extend, or completely rewrite the segment—whatever delivers a clean, working solution that slots straight into our existing build. Accuracy matters more than elegance, but if you can squeeze in a performance gain, all the better. Please return: • The updated .asm (or .s) file and any supporting files • A short note on what you changed and why • A screenshot of the program running and producing the expected output in a terminal or d...

    $156 Average bid
    $156 Avg Bid
    57 bids

    I am seeking an experienced Salesforce B2B and B2C Commerce Developer to design, develop, and implement scalable Salesforce Commerce and Experience Cloud solutions for global enterprise clients. This is a remote contract role requiring availability during Eastern Standard Time (US 8am–5pm). Responsibilities Design and develop solutions using Salesforce B2B Commerce Cloud and B2C Commerce Cloud (SFCC) Build scalable, high-performing storefronts Develop custom components, controllers, pipelines, cartridges, and integrations Implement business logic using Apex, JavaScript, and Salesforce APIs Configure and customize Salesforce Experience Cloud for B2B portals Integrate Salesforce Commerce with external systems (ERP, OMS, Payment, CRM, etc.) Ensure performance, scalability, and ...

    $456 Average bid
    $456 Avg Bid
    94 bids
    Fix SAP ECC User Connector
    3 days left
    Verified

    I have an existing SAP ECC connector focused on user management that needs a thorough tune-up. Right now, role and permission data are not syncing reliably, especially when we pass information to and from our Active Directory and a custom internal system. Here’s what I need: • Review the current connector logic that touches SAP ECC’s user tables and authorization objects. • Identify and correct any mapping or API call issues so user roles and permissions flow accurately both ways. • Extend or adjust the connector so it can read from—and write back to—Active Directory as well as our internal system without breaking existing FI, MM, or SD data pathways. • Document configuration steps and provide a brief hand-over guide so my in-house tea...

    $164 Average bid
    $164 Avg Bid
    28 bids

    I need a clean, reusable .NET MAUI framework that runs on both Android and iOS. The core of the job is a Bluetooth Low Energy driver focused on monitoring-and-notification use cases, wrapped in a virtual communication layer that speaks a fully custom protocol next to standard BLE read/write/notifications characteristics Here is what I expect: - Knowledge AND EXPERIENCE how to run/build BLE MAUI applications, please add this in your response, might need communication • A solution skeleton in MAUI with well-structured projects for shared code, platform specifics, and tests. • A BLE service that discovers, connects, subscribes, and streams characteristic changes, exposing them through events/observables suitable for reactive UI updates. • The virtual channel: encode/dec...

    $19 / hr Average bid
    $19 / hr Avg Bid
    114 bids

    Project Description: I am looking for a Cybersecurity Specialist to perform a comprehensive security audit on a newly developed desktop application. The goal is to evaluate the robustness of the authentication framework and provide a risk assessment report. Scope of Work: Conduct a Vulnerability Assessment on the application's login and validation protocols. Test the integrity of the software's validation logic against unauthorized access. Evaluate the effectiveness of current obfuscation and anti-tamper measures. Provide a detailed report with recommendations for hardening the software and improving data protection. Requirements: Proven experience in Application Security Testing and OWASP standards. Strong background in binary analysis and software protection mechanisms...

    $614 Average bid
    $614 Avg Bid
    31 bids

    I need your technical assistance to fix a compatibility issue on my website (specifically the WordPress installation in the /co/ folder). The server is being upgraded to PHP 8.1, but the current theme (Start Hub Child) and some plugins are causing a critical error and breaking the layout because of legacy code. Key points for the fix: Deprecated Functions: The error logs and compatibility reports show that includes/ is still using old mysql_ functions (which were removed in PHP 7.0+). These need to be updated to mysqli or PDO. Aklare Slider: This plugin is also causing conflicts and needs to be either patched for PHP 8.1 or replaced with a modern alternative (like Smart Slider 3) without losing the current design. No Redesign: I am NOT looking for a redesign. I need the site to kee...

    $28 Average bid
    $28 Avg Bid
    120 bids

    My live SaaS runs on React, is deployed to Vercel, and stores data in Supabase. Production users are already in the system, so every change has to be safe, targeted, and fast. We are providing booking system for photography studio Issue 1 – Mismatched price between generated receipt and system Issue 2 - Time locking issue on booking form page (Time slot should locked when user paid , but there is other time slot that locked by unknown reason) Issue 3 - Booking & payment issue via FPX. These bugs exist where payment is sucess but booking not made. Payment is fail but booking is made. Issue 4 - Other bugs that will be added later Deliverables • Pull request(s) for each of the fixes and refinements • Brief deployment notes so I can push straight to Vercel I...

    $145 Average bid
    $145 Avg Bid
    183 bids
    Fix Critical Website Issue
    2 days left
    Verified

    I’m looking for a developer who can jump straight into my existing site, pinpoint the root cause of a lingering problem, and implement a clean, reliable fix. The exact nature of the issue will become clear once you review the code and front-end behaviour with me in a quick screenshare or staging environment; right now, I simply know that something isn’t working as intended and it needs to be resolved fast. some of the issue: with unminified JavaScript and CSS files have low text-HTML ratio with blocked internal resources in and more.

    $126 Average bid
    $126 Avg Bid
    312 bids

    I run a data platform built on Spark and Python, and I need an experienced engineer who can sit with me in Pune three to four times a week (hardly 2 hours in a day) to keep it running smoothly. Most of the immediate work revolves around tracking down bugs in existing PySpark jobs, but the role naturally extends to writing fresh code when gaps appear, tightening our data-pipeline orchestration, and mapping end-to-end data lineage so every downstream consumer stays confident in their numbers. Typical day-to-day work you will tackle: • Debug production PySpark jobs and accompanying Python utilities • Refactor or rewrite modules where quick fixes will not suffice • Optimise and monitor pipeline schedules (Palantir Foundry) • Document lineage and hand off clear, repro...

    $304 Average bid
    $304 Avg Bid
    9 bids

    Hi, I'm looking for an experienced React developer to help fix and improve my existing website. The site is already built with React, but there are some bugs, layout issues, and areas that need optimization. I'd like someone who can review the current code, identify problems, and make the necessary improvements to ensure everything works smoothly and looks good across all devices. What I need: - Fix existing bugs and errors in the React app - Improve responsiveness and UI layout - Optimize performance and code quality - Ensure compatibility across major browsers and devices You won't need to build the project from scratch - this is mainly about fixing and refining the current website. I'll provide the source code and details after hiring. If you have solid experien...

    $135 Average bid
    $135 Avg Bid
    213 bids

    I’ve just finished deploying a new Android mobile application and everything appeared to go smoothly—until I tried to launch it. Right after installation the app attempts to talk to the backend and immediately throws a server error. The APK itself installs without complaint; the trouble starts only once the first request is sent. I need someone to dive in, locate the root cause on the server side, and implement a clean fix so the app can connect reliably every time. Access to the server, source code, and crash logs is ready for you as soon as we agree to move forward. Please bring experience with common Android back-end stacks (Node, PHP, Java, or similar) and a methodical debugging approach. Once resolved, I’ll confirm the build installs and runs error-free on multiple ...

    $7 Average bid
    $7 Avg Bid
    11 bids
    Ithu Namma Radio
    2 days left

    I’ve just finished deploying a new Android mobile application and everything appeared to go smoothly—until I tried to launch it. Right after installation the app attempts to talk to the backend and immediately throws a server error. The APK itself installs without complaint; the trouble starts only once the first request is sent. I need someone to dive in, locate the root cause on the server side, and implement a clean fix so the app can connect reliably every time. Access to the server, source code, and crash logs is ready for you as soon as we agree to move forward. Please bring experience with common Android back-end stacks (Node, PHP, Java, or similar) and a methodical debugging approach. Once resolved, I’ll confirm the build installs and runs error-free on multiple ...

    $8 Average bid
    $8 Avg Bid
    15 bids

    Project Title: 5G NR RAN Protocol Stack Development (gNodeB – L1/L2/L3) Project Overview: This project focuses on the development, enhancement, and verification of 5G NR protocol stack components within the Radio Access Network (RAN). The engagement covers gNodeB feature development, MAC Scheduler optimization (3GPP Layer 2), and seamless integration across Layer 1, Layer 2, and Layer 3 to ensure performance, compliance, and scalability. Engagement Model: Full-Time Project Assignment Experience Band: 3–8 Years (Telecom/Wireless Domain) Scope of Work: Development and verification of 5G NR protocol stack (L1/L2/L3) MAC Scheduler implementation and enhancements (3GPP Layer 2) gNodeB feature development and Low-Level Design (LLD) contributions Cross-layer interface handling ...

    $1117 Average bid
    $1117 Avg Bid
    17 bids

    I'm looking for a skilled React front-end developer to work with my Django through typescript and wordpress. Key Responsibilities: - Collaborate with the backend team to ensure seamless integration - Implement responsive design for a consistent user experience across devices - Develop custom forms and interactive charts/graphs as per project requirements - Perform SEO optimization for all the pages Ideal Skills: - Proficiency in React , typescript and Django - Experience with responsive design - Ability to create custom forms and interactive elements - Experienced and understanding in SEO is a must Personality : - No toxic working environment - Fast work deliveries, responsive, and agile If you're a proactive developer with a knack for front-end co...

    $4073 Average bid
    $4073 Avg Bid
    152 bids

    Samsung Smart TV (Tizen) App – Auto Logout When Playing Video + UI Lag ## Project Description Hello, I need an experienced **Samsung Smart TV (Tizen) developer**. I have a Smart TV application running directly on a **Samsung TV (Tizen OS)**. Login works correctly, but when playing any video channel, the app automatically logs out and returns to the login screen. --- ## Current Status * QR login works correctly * Manual login works correctly * Profiles load correctly * Session is active --- ## Main Issue When attempting to play any streaming channel: * The app logs out automatically * It redirects to the login screen * The session appears to reset --- ## Additional Issue (Performance) The UI has delay: * Typing takes 20–30 seconds to respond * Clicking elemen...

    $167 Average bid
    $167 Avg Bid
    52 bids
    Fix PHP Image Loading
    1 day left
    Verified

    I built my site with an AI generator and everything has been smooth until one stubborn page: every image on that page refuses to show. All the files sit right on the same server as the website, yet they still fail to appear in the browser—no broken-link icons, just empty space. I haven’t been able to verify whether the paths are mis-pointed or if something deeper in the PHP is blocking them, so I need a fresh set of eyes. Here’s what I’m after: • Quickly locate the root cause of the missing images on that single page (file-path, permissions, header output, or anything else you uncover). • Apply the fix and confirm the images render correctly across modern browsers. • Walk me through what went wrong and how you fixed it so I can avoid the same s...

    $15 Average bid
    $15 Avg Bid
    63 bids

    Web app built with that I converted into a mobile app using Appilix. The app works but has several issues. Most problems are on the mobile app version (buttons not responding, lag, poor responsiveness). A small number of bugs also exist directly on the Bubble website and need fixing there as well. I’m looking for someone who can mainly fix and optimize the mobile app, plus handle a few minor fixes on the Bubble side. Main Issues to Fix (App): Some buttons don’t respond or work inconsistently Navigation can lag or freeze App responsiveness is worse than the website Some mobile UI interactions don’t feel smooth Minor Work (Website / Bubble): Fix a few buttons / workflows that are also buggy on Bubble itself Important: The website mostly works...

    $750 - $1000
    Sealed
    $750 - $1000
    69 bids

    I want to craft a classic side-scrolling platformer for a 6502-based console (Atari 7800) and need the entire game engine written from scratch in pure 6502 assembly. Nothing from previous projects will carry over, so every subsystem—graphics, input, physics, scrolling, and sound—has to be engineered fresh and optimised for tight memory constraints. The focus is solely on core engine programming. I’ll supply game design direction (it will be a frog sprite that hops tree to tree using his tongue to achieve a high score, simle arcade styled game), but to start the project I need: • 6502 assembly source code • Build scripts or makefiles that assemble a runnable ROM image • A simple demo level proving horizontal scrolling, sprite animation, collision detec...

    $131 Average bid
    $131 Avg Bid
    14 bids

    I’m running a live WooCommerce store and my checkout is failing whenever a customer selects PayPal. The order never completes, WooCommerce shows a generic “payment failed” notice, and the PayPal logs record an “invalid request” response. Everything else on the site is stable, so this is clearly a payment-gateway specific bug that needs urgent attention. Here’s what I know so far: • WooCommerce, WordPress, and all plugins are up to date. • PayPal is set up with the official WooCommerce PayPal Payments plugin (latest version). • API credentials have been double-checked and re-issued, yet the error persists. I need an experienced WooCommerce developer who can: • Trace the exact cause of the PayPal failure—whether it&rsq...

    $423 Average bid
    $423 Avg Bid
    230 bids

    Our core business platform still runs on Visual FoxPro 9.0 and, while it remains stable, new issues surface whenever data volumes spike or Windows updates roll out. I need an experienced VFP hand to step into the codebase, trace defects, optimise slow queries, and generally keep the application healthy so staff can work uninterrupted. Here’s how I see the engagement unfolding: • Diagnose and repair any runtime errors or data-related glitches we flag. • Streamline heavy reports and long-running SELECTs to improve performance against tables that now exceed several million rows. • Refactor screens or forms where legacy UI logic causes freezes or display problems under newer Windows builds. • Leave the code cleaner than you found it—comment your changes ...

    $792 Average bid
    $792 Avg Bid
    6 bids
    Resolve Flutter Signup Issue
    6 hours left
    Verified

    I need a sharp-eyed Flutter / Node.js troubleshooter to pinpoint and fix an intermittent signup failure in my mobile app. The OTP step completes successfully, yet many users (on both iOS and Android) hit a wall when the form tries to create the account. No explicit error is returned to the UI, but the account never appears in the database. Here is what I can share right away: • Front end: Flutter 3.x, using MSG91 for phone-based OTP. • Back end: Node.js (Express) REST API, MongoDB. • Flow: user enters phone → receives OTP → OTP verified → form posts profile details → failure occurs after the POST. What I need from you is a fast, reproducible diagnosis, a clean code fix (whether in Dart, the REST endpoint, or both), and a short hand-off note so my te...

    $140 Average bid
    $140 Avg Bid
    47 bids

    My PHP 8.x application has picked up a fair amount of dead weight—unused files, legacy snippets, and the odd warning that only shows up in the logs. I need a developer who can open the hood, keep what truly matters, and scrap the rest while making sure everything that stays runs flawlessly. Here’s what I’m asking you to do: • Read the entire codebase, identify the core file(s), and strip away anything that isn’t required. • Hunt down every notice, warning, or fatal error and resolve it so the script executes cleanly on PHP 8.x with error reporting turned up. • Where you see obvious performance wins—query consolidation, tighter loops, lighter includes—go ahead and tune them. • I’m not entirely sure which smaller features ...

    $15 Average bid
    $15 Avg Bid
    17 bids

    My OpenCart store is currently unable to complete orders whenever customers choose at checkout. The payment window opens and the customer submits their card details, but the process never reaches the final “order confirmed” stage in OpenCart, so no order is recorded in the back-office and no confirmation email is sent. Other gateways behave normally, so the problem appears isolated to the integration. I need someone who knows OpenCart’s checkout workflow inside out and is comfortable digging into the extension, transaction logs, and any JavaScript or server-side conflicts that might be interrupting the callback. Your goal is simple: identify the failure point, apply the fix, and prove that an order can move cleanly from payment to confirmation every time. Deliverable...

    $142 Average bid
    $142 Avg Bid
    143 bids

    I'm looking for a skilled developer to fix an issue with my contact form. The form fails to submit when the submit button is clicked. Requirements: - Diagnose and resolve the submission issue - Ensure form works across all browsers - Test to confirm the fix is reliable Ideal Skills and Experience: - Proficiency in HTML, CSS, JavaScript - Experience with form handling and debugging - Familiarity with web development tools and testing methods Please provide a quick turnaround and ensure the form is fully functional.

    $401 Average bid
    $401 Avg Bid
    225 bids

    Senior Full-Stack Developer (React/Node.js) - Base44 & AI Specialist Job Description: We are seeking a high-level Full-Stack Developer to resolve a series of Critical and High Priority bugs within our business management platform, CompanySync. Our application is built and hosted on the Base44 platform. You will be working directly within the Base44 editor to debug React components, Node.js serverless functions, and complex AI integrations. Critical Priorities: Fix AI Voice Interruption (BUG-001): Resolve issues with Gemini Live Voice where interruption and Voice Activity Detection (VAD) are failing. Twilio Inbound/Outbound (BUG-013/014): Fix TwiML handlers for inbound AI voice calls and SMS responses for our virtual assistants. Google Calendar Two-Way Sync (BUG-003): Troubleshoot an...

    $209 Average bid
    $209 Avg Bid
    134 bids

    I need a strong developer who can debug TypeScript code with ease and assist with deep debugging and troubleshooting of my current script, including root-cause analysis, refactoring fragile logic, and improving overall maintainability.

    $137 Average bid
    $137 Avg Bid
    135 bids
    Linux Desktop App Bug Patch
    1 hour left
    Verified

    Our in-house desktop application for Linux has started throwing an error that disrupts a critical workflow. I already have the full source code and a reproducible test case; what I now need is a clean, well-documented bug-fix patch that eliminates the issue without introducing regressions. Here is how I see the collaboration: • You clone the repo (Git) and replicate the bug on any mainstream Linux distro. • Diagnose the root cause, write the fix, and submit it as a unified diff/patch file plus the updated build. • Prove the fix with the supplied test case and a brief regression checklist so I can validate it quickly on my side. • Keep comments concise and follow the existing coding style; no sweeping refactors—just the focused bug fix. Once I verify that ...

    $290 Average bid
    $290 Avg Bid
    16 bids
    Trophy icon Website Launch Final Touches
    18 hours left

    My site is already built and publicly accessible on its staging domain—I just need an extra pair of expert hands to turn it from “nearly done” into “ready to launch.” Here’s what still stands between me and the go-live button: • Tidy up a few small alignment issues so every section sits exactly where it should on desktop and mobile. • Swap in the last bits of copy and a handful of new images, then double-check that nothing broke in the process. • Hunt down any mis-linked navigation, CTA, or footer items and point them to their proper destinations. • Give the layout a once-over in common breakpoints to confirm it’s fully responsive. • Run performance tweaks—image compression, asset minification, caching, ...

    $56 Average bid
    Guaranteed
    $56
    29 entries
    Trophy icon nRF51822 BLE Messaging Template
    6 hours left

    I need a clean, production-ready PlatformIO project for the Nordic nRF51822 written in C/C++. The example must boot, scan for nearby BLE devices, connect to one of them, and exchange plain text strings—ideally via a Nordic UART–style GATT service. Please build it around a SoftDevice or Nordic SDK you have already proven on real hardware; I do not want AI-generated scaffolding that compiles but fails at runtime. The code should: • compile inside PlatformIO with a single pio run command • flash successfully to an nRF51822 DK or compatible module • start scanning, connect on the first match, and perform a two-way text message exchange • cleanly disconnect and resume scanning Deliverables I’ll review: 1. A complete PlatformIO project folder (ma...

    $60 Average bid
    $60
    14 entries

    Uso il gestionale Infantia2000 e il grafico a linee non è correttamente allineato: gli assi risultano sfalsati. Mi serve un intervento mirato che sistemi l’allineamento degli assi mantenendo intatti colori, etichette e struttura già presenti. Posso descrivere nel dettaglio come dovrebbe apparire il risultato finale, indicandoti dove gli assi devono combaciare con i punti dati e quali margini rispettare. Che cosa mi aspetto: • Analisi rapida del problema di rendering del grafico a linee dentro Infantia2000. • Correzione del codice o delle impostazioni responsabili dello sfasamento assi. • Breve spiegazione di quanto modificato così da poter replicare l’intervento in futuro. Lavoriamo preferibilmente da remoto: fornirò accesso al ...

    $94 Average bid
    $94 Avg Bid
    5 bids

    We are seeking experienced iOS and Android developers to assist in completing and optimizing our iOS VPN application. The developer will need to synchronize all features and logic from the reference template (Android version) to the iOS version, address existing issues in the iOS app, and update and optimize backend code to ensure compatibility and performance with the iOS client. Pre-Development Requirements (Must Complete): To ensure development quality and feature consistency, all developers must complete the following steps before starting coding: Download and thoroughly experience the reference template: This is a crucial step to understand project requirements. Please download the reference template from Google Play and fully experience all features, including connection flow, sett...

    $360 Average bid
    $360 Avg Bid
    16 bids

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