Debugging Projects

React Native Developer - Supabase & Payment Integrations

SplitSense is a free, ad-free alternative to Splitwise that helps people manage group expenses, scan receipts, split individual items, merge balances, and simplify settlements. getsplitsense.com We are looking for an experienced React Native developer who can work across the mobile application and its Supabase backend. Payment integrations and settlement flows are an important part of the role, but you should also be comfortable improving existing features, fixing bugs, and contributing thoughtful product ideas. What you will work on - React Native and TypeScript development across the SplitSense mobile app - Supabase Auth, Postgres, Row Level Security, database functions, storage, and backend integrations - Payment and settlement experiences, including UPI, payment providers, webhooks, transaction states, and reconciliation - Debugging and improving existing product flows - Secure handling of user, expense, and payment-related data - Android and iOS testing, performance, and production releases - Reviewing requirements and suggesting simpler or better solutions when appropriate What we are looking for - Strong production experience with React Native and TypeScript - Hands-on experience with Supabase in a real application - Experience implementing payment integrations or other transaction-sensitive workflows - A solid understanding of authentication, database security, Row Level Security, and API design - The ability to read an existing codebase and become productive quickly - Strong debugging skills and attention to product behaviour and edge cases - Clear communication and the confidence to suggest improvements instead of only following instructions Product familiarity is required We are a fast-moving team and expect candidates to arrive prepared. Before applying, install SplitSense, create your account, and spend some time using it as a real user. At minimum, create a group, add a few expenses, and explore the splitting methods, balances, settlements, group settings, and activity history. We will ask detailed questions about features across the entire application during the interview. We want candidates who take the initiative to understand the product as real users before discussing how they would improve it as developers.

Senior Android Platform & Linux Systems Engineer

We are looking for a Senior Android Platform & Linux Systems Engineer to work on our virtualized Android infrastructure This is a Linux/platform-heavy role with regular Android system-level work. You will work with Linux containers, ARM64 infrastructure, Android virtualization, Redroid/AOSP builds, system configuration, performance, and low-level debugging We need real hands-on experience working below the Android application layer RESPONSIBILITIES - Build and maintain virtualized Android environments on Linux - Work with Redroid or similar Android virtualization technologies - Produce and maintain ARM64-compatible Android builds when required - Debug Linux, container, Android boot, runtime, and performance issues - Work with Android system components such as init, SELinux, Binder, native services, system properties, and permissions - Modify Android system/framework/native components when needed - Configure Android builds for required device profiles and system characteristics - Maintain reliable ADB and CDP connectivity - Investigate differences between physical Android devices and virtualized Android environments - Optimize CPU, memory, startup time, and stability for multiple Android instances - Produce reproducible builds and document important configuration changes - Work with infrastructure, automation, scraping, and QA teams to identify and fix platform-level issues MUST-HAVE SKILLS - Strong Linux systems knowledge - Good understanding of containers, processes, networking, filesystems, memory, and system debugging - Experience with Docker or similar container technologies - Experience with ARM64 Linux or Android environments - C/C++ experience or confidence working with native system-level code - Hands-on Android experience below the application layer - Strong experience with ADB and debugging tools such as logcat, dumpsys, and dmesg - Ability to independently diagnose complex system-level problems Your Android platform experience may come from: - AOSP - Android Automotive - Redroid / Waydroid - LineageOS / GrapheneOS / custom ROMs - Android device bring-up - HAL development - Binder - Native Android services - SELinux / init - Android kernel work - Android virtualization NICE-TO-HAVE SKILLS - Experience building AOSP from source - Experience modifying AOSP and producing custom Android images - Redroid experience - Cuttlefish, QEMU/KVM, or Android Emulator experience - Android Automotive experience - Custom ROM development - Android kernel or HAL development - Chromium/Chrome on Android - Android NDK experience - Experience running many Android instances on server infrastructure - Familiarity with browser automation through CDP or Playwright EXPECTED OWNERSHIP We expect the engineer to own the Linux/Android platform layer You should be able to take a system-level problem, identify whether it comes from Linux, containers, Android, virtualization, or build configuration, and implement the correct fix When Android/AOSP changes are required, you should be able to make them directly or work effectively with a senior Android platform specialist reviewing the solution PROJECT CONTEXT We are building an Android virtualization platform for browser automation and scraping workloads The current setup uses Redroid in Docker, external networking and proxy infrastructure, ADB connectivity, and browser automation through CDP The current PoC primarily runs on x86/x64. The target architecture is ARM64 The role focuses on making Android run reliably and efficiently in this environment and modifying the Android platform when infrastructure configuration alone is not enough The platform needs to support: - ARM64 infrastructure - Android Chrome/Chromium - Reliable ADB connectivity - Required Android/device profiles - CDP-based browser automation - Multiple Android instances running on server infrastructure Infrastructure, proxy routing, scraping integration, and QA are handled by other team members.- COMPENSATION - Hourly rate based on relevant experience and technical depth - Remote collaboration - Flexible engagement based on project needs - Performance bonuses for successful technical milestones - Additional bonuses for solving complex platform, Android, or virtualization problems - Long-term collaboration for strong and reliable performance SELF-FILTERING This is not a standard Android app development role Experience mainly with Kotlin/Java applications, Jetpack, Android UI, or application-level SDK work is not enough This is also not a standard DevOps role. Docker, cloud, or Kubernetes experience alone is not enough You should have real experience debugging or modifying Android below the application layer During the interview, we will ask you to walk us through a real Android platform or low-level systems problem you personally solved, including: - The original problem - How you investigated it - The root cause - The fix - How you verified the result

Mid-Level Fullstack Developer

Seeking a proficient Mid-Level Software Developer for a part-time, remote role across Hong Kong, Singapore, Philippines, or Vietnam. Ideal candidate has 3+ years’ professional experience across frontend and backend, a demonstrated ability to deliver clean, maintainable code, and comfort working independently. Responsibilities include developing and maintaining web and mobile applications, implementing features, integrating APIs, debugging and optimizing systems, and producing clear documentation. Required skills: React/Next.js, Node.js/Express/NestJS, PHP/Laravel, Python/Django/FastAPI, React Native or Flutter, SQL/NoSQL. B2+ English, strong problem-solving, adaptability, responsiveness, and ownership are essential. Familiarity with cloud platforms, Docker/CI-CD, AI/LLM integrations, and mobile deployment is advantageous. Long-term collaboration preferred; flexible schedule.

pre-funded

Senior Full-Stack Developer, Long-Term Role

Summary We’re looking for a senior full-stack developer to join our team on a long-term basis. You’ll work closely with our team and clients to build, improve, and maintain modern web applications. We’re looking for someone who can take ownership of tasks, communicate clearly, and work independently without needing constant supervision. - What we’re looking for * Strong full-stack development experience * Strong knowledge of JavaScript/TypeScript, React, and Node.js * Experience building and integrating REST APIs * Good understanding of databases and backend architecture * Experience with Git and modern development workflows * Ability to understand requirements and turn them into working software * Strong problem-solving and debugging skills * Excellent spoken and written English * Comfortable communicating directly with U.S.-based clients * Able to explain technical concepts clearly and naturally * Reliable, responsive, and able to work independently - Communication Requirement This role involves regular communication with U.S.-based clients, so excellent spoken English and clear, natural communication are required. You do not need to be American, but you should be highly comfortable communicating with American clients in professional situations. A clear and easily understandable accent is important because client communication will be part of the role. - Paid $5 Test As the first step, shortlisted candidates may be asked to complete a small $5 paid test task. The test is intentionally short and is designed to evaluate your: * Full-stack development ability * Code quality * Problem-solving approach * Attention to detail * Communication skills We do not expect you to complete substantial unpaid work. The test will be a small, clearly defined task. - Application Requirements Please include: 1. A brief introduction about yourself. 2. Your relevant full-stack experience. 3. Links to 2–3 relevant projects you've worked on. 4. A 2–3 minute video introduction explaining your experience and why you're a good fit for this role. The video is important because this is a client-facing position. We want to see how clearly and naturally you communicate. - No Agencies We are hiring an individual developer directly and are NOT accepting applications from agencies, development companies, or teams. Please do not apply if you intend to subcontract the work or assign it to other developers. The person we hire must personally perform the work and communicate directly with our team and clients. - Long-Term Opportunity This is intended to be a long-term position for the right person. If you are a strong developer who takes ownership, communicates well, and wants to become an important part of a growing software team, we’d like to hear from you. Please apply only if you meet the requirements above.

opportunity

Need someone to optimise Google ads grant account

I am looking for an experienced Google Ads / GA4 / Google Tag Manager specialist to review, fix and optimise an existing tracking setup. The main priority is to get the Google Ads account running correctly and ensure the tracking structure is clean, accurate and reliable. There is currently: 1 Google Ads account 2 separate domains/websites Separate GTM containers for each website GA4 properties already in place Existing conversion/event tracking that needs to be reviewed and validated Approximately 5 Google Ads campaigns/ads set up so far The websites are charity/hospice websites, so accurate traffic and donation tracking is important. I need someone to: Audit the current Google Ads setup and identify anything preventing or limiting ad delivery Get the existing Google Ads campaigns running correctly as the immediate priority Review and clean up both GTM containers Review the GA4 setup for both websites Ensure the correct Google tags are installed through GTM without unnecessary duplicate code Remove or replace duplicate, incorrect or outdated tags where appropriate Check existing page-view and conversion actions in Google Ads Review conversion goals and ensure they are configured correctly Validate donation funnel tracking Track key stages such as donation page visits, donation starts and completed donations Confirm whether donation value and transaction data can be captured Review GA4 events and key events/conversions Ensure Google Ads and GA4 are linked correctly Check Search Console integration where relevant Test everything through GTM Preview / Tag Assistant and GA4 DebugView Confirm conversions are being received correctly by Google Ads Provide a short summary of what was changed and any outstanding issues I do not want unnecessary tracking scripts hard-coded directly into the websites if the same setup can be properly managed through Google Tag Manager. The final structure should be clean, easy to manage and suitable for ongoing campaign reporting. Priority order: Get Google Ads running correctly Fix and validate conversion tracking Clean and optimise GTM Clean and optimise GA4 Verify donation funnel reporting across both websites Please only apply if you have strong practical experience with Google Ads, GA4, GTM, conversion tracking and debugging, rather than only general digital marketing experience. When applying, please briefly explain how you would approach the audit and how quickly you could get the Google Ads account checked and running.

Flutter developer

Flutter Developer Needed: Build AC Survey App from Existing Source Code Project Overview I need an experienced Flutter developer to take my complete source code for a mini-split air conditioning site survey app and build it into a working Android APK that I can install on my phone and tablets. Important: The app is already fully coded. I'm not asking you to write it from scratch. I need you to: 1. Review the code for any issues 2. Build it into a working Android app (APK) 3. Test it thoroughly 4. Deliver the installable APK file 5. Optionally help publish it to the Google Play Store What I'll Provide Complete Flutter source code (all screens, models, services, utilities) List of all packages/dependencies used Detailed feature list and workflow description Access to answer any questions about the business logic Prompt feedback during testing What You'll Do 1. Code Review & Setup Download and review all source code files Set up the Flutter development environment Run  flutter pub get  to install dependencies Run  flutter pub run build_runner build  to generate Hive adapters Fix any compilation errors or dependency conflicts 2. Build the Android App Configure Android build settings (min SDK, target SDK, app name, package name) Build a release APK (not debug) Ensure the app runs smoothly on Android 8.0+ devices Optimize APK size where reasonable 3. Testing Install the APK on at least one physical Android device Test the complete workflow: Create a new survey Fill in all fields (property details, electrical assessment, rooms, outdoor unit) Take photos with the camera Save the survey Reopen and edit the saved survey Generate and share the PDF report Verify photos appear in the PDF Test on different screen sizes if possible (phone and tablet) Fix any bugs discovered during testing 4. Deliverables Working APK file ready to install Source code with any fixes you made Brief documentation on how to install the APK List of any changes you made to the original code (Optional) Help publishing to Google Play Store Technical Stack The app uses: Flutter 3.x (latest stable) Dart 3.x Key packages:  hive  and  hive_flutter  for local storage  pdf  and  printing  for PDF generation  image_picker  for camera/photos  image  for photo compression  share_plus  for sharing  path_provider  for file paths  uuid  and  intl  for IDs and dates App Features (For Your Reference) The app is a 4-step survey tool for UK air conditioning installers: Step 1: Property Details Customer name, address, postcode Property type, construction era, wall type, glazing Photo capture (property photos) Step 2: Electrical Assessment Main fuse rating (60A/80A/100A) Consumer unit type Toggles for EV charger, electric shower, heat pump, solar, battery Live calculation of total electrical load Warning if load exceeds 80% of main fuse capacity Photo capture (consumer unit, meter) Step 3: Room Survey Add multiple rooms (repeatable) For each room: dimensions, floor level, orientation, windows, insulation Live BTU calculation per room Recommended unit size (2.5kW, 3.5kW, 5kW, 7kW) Photo capture per room Step 4: Outdoor Unit & Compliance Outdoor location, wall material, line-set length Condensate route, noise notes Compliance checkboxes (F-Gas, Part P, Part F) Photo capture (outdoor location) Summary Screen Review all survey data Generate professional PDF report with all data and photos embedded Share via email, WhatsApp, etc. Survey List Home screen shows all saved surveys Edit or delete existing surveys Persistent local storage using Hive

Fix PHP Website Forms PHPMailer, Google SMTP and reCAPTCHA v2

Fix Two PHP Website Forms Using PHPMailer, Google Workspace SMTP and reCAPTCHA v2 I need an experienced PHP developer to diagnose and fix two forms on an existing live website: 1. Contact Us form 2. Book a Free Design Visit form Website: https://www.cleverstoragekent.co.uk Both forms previously worked on the same eUKhost VPS using PHPMailer, Google Workspace SMTP and Google reCAPTCHA v2. The website files were recently replaced with an updated version, and both forms now reach the branded error page when submitted. Current setup: - PHP 8.2 with PHP-FPM - PHPMailer included locally in the website files - Google Workspace SMTP - SMTP server: `smtp.gmail.com` - Port: `587` - Encryption: TLS/STARTTLS - Google reCAPTCHA v2 checkbox - Website hosted on an eUKhost VPS - Contact Us handler: `general-contact.php` - Design Visit handler: `contact.php` - Shared settings: `config.php` - Shared email code: `form-common.php` - Optional photograph uploads on the Design Visit form eUKhost has confirmed: - Outbound connections to `smtp.gmail.com` on port 587 are permitted - The server can resolve and connect to Google SMTP - TLS negotiation and certificate verification succeed - PHP OpenSSL is working - No firewall or ModSecurity restriction is blocking SMTP - The upload directory is writable - Required PHP extensions are installed Required work: - Diagnose the precise PHPMailer or Google SMTP failure. - Restore successful delivery for both forms. - Confirm that each form redirects to the thank-you page after successful submission. - Confirm that failed submissions redirect to the correct error page. - Verify reCAPTCHA v2 on both forms. - Check that the authenticated sender matches the Google Workspace account. - Check PHPMailer’s SMTP, encryption and authentication settings. - Ensure confidential credentials remain protected. - Test the Contact Us form from the production domain. - Test the Book a Free Design Visit form from the production domain. - Confirm staff notification emails are received. - Confirm customer acknowledgement emails are received where configured. - Test optional photograph uploads from iPhone/Apple Photos. - Ensure valid JPEG, JPG, PNG, WebP, HEIC and HEIF photographs are handled safely. - Prevent PHP execution inside the uploads directory. - Remove any temporary debugging files or detailed public error messages when finished. Please do not redesign the website or change unrelated pages. This is a focused server-side form repair. Access can be provided to the relevant eUKhost files and logs. The successful developer should explain the cause of the problem, document the changes made and supply copies of every changed file. Please include: - Relevant experience with PHP and PHPMailer - Experience with Google Workspace SMTP and App Passwords - Experience with Google reCAPTCHA v2 - Your estimated completion time - Your fixed-price quotation