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Our occupational-health booking system is already live and about 99 % feature-complete, yet every time code is touched new problems appear. Built in Google AI Studio with a Node.js back end and a React front end, it now needs a steady pair of hands to make it production-reliable and to keep evolving it over the long term. Current pain points • Frequent bugs and crashes, especially around booking appointments, reviewing questionnaires, and granting certificates. • User-interface glitches that surface across every portal—client, company, and medical-technician views. What I need from you 1. Quickly audit the existing repo, trace the crash sources, and patch them without introducing regressions. 2. Clean up the React components so each interface feels consistent and responsive. 3. Harden the Node.js API layer—proper error handling, logging, and unit tests are essential. 4. Work with me on a rolling basis; please state your hourly, daily, or weekly rate so we can choose the most practical model. 5. Commit all changes through Git with clear, descriptive messages and open pull requests for review. Acceptance criteria • Zero critical crashes after a full testing cycle covering the booking, questionnaire, and certificate flows. • All three interfaces load without visual or functional defects on the latest Chrome, Firefox, and Edge. • Automated test suite passes in CI before any deployment to production. If you enjoy untangling existing codebases and can communicate progress openly, this should be a straightforward ongoing engagement. I’m ready to grant repo access and walk you through the deployment pipeline as soon as we agree terms.
Project ID: 40573195
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192 freelancers are bidding on average £7 GBP/hour for this job

Hello, I understand you're facing challenges with stability in your occupational-health booking system, particularly with new issues cropping up whenever there's a code update. With the robust Node.js backend and React framework already in place, we can focus on pinpointing and resolving these instabilities while maintaining seamless functionality. My approach will begin with a thorough code review to identify the areas where changes have historically caused unexpected issues. Utilizing tools for continuous integration and best practices in API development, we can streamline updates and minimize disruptions. Ensuring stable Git repositories can help us revert or control changes proactively. Additionally, implementing automated testing across both the Node.js and React components can catch potential problems early in the development process, preventing them from affecting live operations. With experience in managing complex systems and a solid grounding in JavaScript, AngularJS, and NoSQL databases like MongoDB, I am equipped to address the existing issues and reinforce the system’s stability. Looking forward to the possibility of working together to enhance the reliability and efficiency of your platform. Best Regards, Khorshed Alam, RS Software
£6 GBP in 40 days
7.9
7.9

Hello!! " Health Platform " I have similar kind of expertise and work experience. I am having more then 10+ years of experienced in Node-React programming and i believe that i can start working step by step and achieve the project goal in short time frame. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. WE WILL WORK WITH AGILE METHODOLOGY AND WILL ASSIST YOU FROM ZERO TO PUBLISHING ON STORES. successfully implement this project from start-to-finish. Let's come together and create a platform that not only propels your business but also stands out prominently within the marketplace. Awaiting for your positive response. Thanks >>>>>>> We'll share our portfolio in Chat. Let's talk further speak over the freelancer call or chat. <<<<<<
£4 GBP in 40 days
6.8
6.8

React & Node.js Healthcare Platform Stabilization and Maintenance Hello, I understand that you need an experienced full-stack developer to audit, stabilize, and continuously improve your existing occupational-health booking system. The platform is already feature-complete, but requires debugging, performance improvements, cleaner architecture, and ongoing maintenance to ensure production reliability. Let's chat and discuss your project in more detail and start working ASAP. Thanks
£4 GBP in 40 days
6.8
6.8

Hello! As per your project post, you are looking for an experienced full stack developer to stabilize and enhance your existing occupational health booking platform built with React and Node.js. Since the application is already live and nearly feature complete, the priority is to eliminate recurring bugs, improve reliability, strengthen the backend, and establish a maintainable development process for long term growth. My focus will be on auditing the existing codebase, identifying the root causes of crashes, fixing issues without introducing regressions, improving the booking, questionnaire, and certification workflows, refining React components for a consistent user experience, strengthening the Node.js API with robust error handling, logging, validation, and automated testing, while following a structured Git workflow with clean commits and pull requests. I specialize in React, Node.js, REST APIs, production support, debugging complex applications, performance optimization, and scalable software architecture. My approach is to resolve underlying issues rather than temporary fixes, ensuring the platform becomes stable, maintainable, and ready for future enhancements. Let's connect to discuss your priorities and development workflow so we can make your platform reliable, scalable, and production ready. Best regards, Nikita Gupta
£10 GBP in 40 days
6.7
6.7

Hi there, We understand you're looking to stabilize your Node-React health platform, which is nearly feature-complete but plagued by frequent bugs, crashes, and UI glitches, particularly in appointment booking, questionnaire review, and certificate granting. With our 17 years of experience in web development and a strong background in Node.js and React, we're confident in our ability to audit your repo, identify crash sources, and implement patches without introducing regressions. Our team has previously worked on complex projects, such as a music voting mobile app using React Native and a furniture store mobile shopping app using Flutter, demonstrating our proficiency in handling intricate frontend and backend tasks. We'll deliver a production-reliable platform with consistent and responsive interfaces, a hardened Node.js API layer, and proper error handling, logging, and unit tests. Can you tell us more about your expectations for the rolling basis engagement and how you envision our collaboration on this project? Feel free to message us to discuss the details! — Webbook Studio
£5 GBP in 40 days
6.6
6.6

Hi, The fact that new issues appear every time a fix is released tells me the problem is probably not the individual bugs. It is more likely a lack of protection around the codebase, unclear error handling or components and APIs that are too tightly connected. Before changing anything, I would map the booking, questionnaire and certificate flows end-to-end and identify where failures are starting. That usually prevents the cycle of fixing one issue and creating two new ones. My focus would be: ✅ Find the root causes behind the crashes instead of patching symptoms ✅ Add safeguards so future changes do not break existing workflows ✅ Standardize React components to reduce UI inconsistencies across all portals ✅ Improve API error handling and logging so issues can be traced quickly ✅ Build test coverage around the critical paths before production releases ✅ Keep every change small, documented and reviewed through Git PRs A few things I'd like to check first: 1. Do you already have automated tests in place? 2. Are crash logs available from production or only from local/dev environments? If helpful, I can start with a short audit and provide a list of the highest-risk areas before any major development work begins. Looking forward to hearing more about the system. Best, Ahsan K | Node.js Expert | Frontend Developer
£20 GBP in 40 days
6.0
6.0

Hello there! I will cleanly take over the stabilization of your occupational-health booking system to make it production-reliable and bug-free across all three user portals. I will quickly audit your Node.js and React setup, patch the recurring booking, questionnaire, and certificate crashes without regressions, and build out a robust API error-handling and automated test suite. You will receive clean, well-commented code and structured Git commits ready for seamless pull request reviews under a flexible hourly or rolling arrangement. Best regards, Nikhil Chandra Roy
£4 GBP in 40 days
6.3
6.3

Hello, Is the current codebase using any specific testing frameworks? Also, do you have any preferred tools for logging and error tracking? Excited to enhance your booking system! I’ll start by auditing your repo to identify the major crash points, ensuring fixes don’t lead to new issues. My priority will be to stabilize the booking and questionnaire flows. I’ll share examples of similar projects in the chat. Let’s discuss the timeline and rates in detail once we explore your specific needs together. Looking forward to smoothing out your system’s kinks! Feel free to reach out, and we’ll get the ball rolling effortlessly.
£15 GBP in 40 days
5.9
5.9

Hi I understand you are looking for hands-on help to stabilise your Node-React Health Platform, focusing on concrete, actionable steps that reduce risk, improve reliability, and streamline deployment and maintenance. I’m a results-driven developer experienced with JavaScript, Node.js, NoSQL (Couch & Mongo), frontend work, API development, and CI pipelines. I specialize in turning technical challenges into repeatable, reliable workflows, so you can move from setup to steady, predictable operation without guesswork. For your project, I would structure work into practical phases: an initial stabilisation audit to surface uptime, error, and latency hotspots; targeted fixes in the Node/API layer and React/AngularJS UI with clear rollback plans; and a CI/CD upgrade to ensure automated testing, builds, and deployments. I’ll document decisions, establish pragmatic tests, and create lightweight dashboards to monitor key health metrics, so you have a dependable operating baseline and faster recovery paths. I will also provide concise reference guides and process checklists to preserve stability as the platform evolves and to support onboarding for your team. Best, Justin
£60 GBP in 40 days
5.9
5.9

Hello! We can help stabilise your existing platform and keep it reliable long term. 1. Which issue should we tackle first: crashes, UI glitches, or API reliability? 2. Do you already have CI and test coverage in place? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
£4 GBP in 40 days
6.3
6.3

Hi! I’ll stabilize your Node + React occupational-health booking platform so production stops breaking when small changes land. I’ll start by auditing the existing repo, reproducing the booking/questionnaire/certificate crashes, and pinning exact stack traces. Then I’ll patch the root causes and add guardrails so similar regressions don’t slip back in. On the UI side, I’ll clean up shared component inconsistencies that show up in all portals (client, company, medical-tech), focusing on responsive behavior and missing/buggy states. On the backend, I’ll harden the Node API layer with better error handling, request/response logging, and targeted unit tests for the risky flows. I’m used to untangling messy production codebases and keeping changes small and reviewable. I can begin as soon as repo access is granted. Slavko
£7 GBP in 29 days
5.6
5.6

Hello There! I’m Md. Toriqul Islam, and I’m excited to partner with you. I can dive into your project immediately. I have experience in React, Node.js, API development, debugging, Git workflows, automated testing, and long-term application maintenance. I understand you need a reliable developer to stabilize your existing booking platform by fixing critical bugs, improving the React UI, strengthening the Node.js backend, and ensuring safe, well-tested updates through Git and CI. I am skilled in React, Node.js, JavaScript, REST APIs, Git, CI/CD, and test-driven development. I’m ready to start immediately and would be happy to discuss your workflow, priorities, and ongoing support model. Looking forward to hearing from you. Best regards, Md. Toriqul Islam
£4 GBP in 40 days
5.6
5.6

Hello, I have extensive experience troubleshooting existing codebases, resolving production issues, and enhancing application stability without disrupting existing functionality. My approach would begin with a structured audit of your application to identify the root causes of crashes and UI inconsistencies, followed by targeted fixes, comprehensive testing, improved error handling, logging, and code refactoring where necessary. I focus on clean architecture, maintainable code, responsive interfaces, secure API development, and disciplined Git workflows with clear commits and pull requests to ensure reliable long-term development. I would welcome the opportunity to discuss your project and share how I would approach stabilizing and continuously improving your platform. Best regards
£5 GBP in 40 days
5.8
5.8

Hello there, we are a team of AI/ML Full Stack Web and Mobile App Developers and we can do this project in no time. Thanks Ashish Kumar.
£4 GBP in 40 days
5.6
5.6

As an experienced frontend developer with ample knowledge in Node.js, I can assure you that I have the skill-set necessary to alleviate the pains faced by your health-booking system. Not only can I seamlessly navigate your existing repo and eradicate the root causes of frequent crashes, but I can also guarantee a clean-up of your React components to provide consistency and responsivity across all three interfaces. Moreover, I understand the vital need to establish a robust API layer and ensure proper error handling and logging are implemented. And this can be accomplished without causing any unintentional setbacks through rigorous unit testing. Having excelled in optimizing software performance in my previous projects, I'm confident that I will meet all your acceptance criteria – zero critical crashes, flawless interface performance, and an automated test suite that triumphs prior to production deployment. My past experience has gifted me the knack of unpicking even the most intricate codebases leaving them more stable than ever before. Let's unite and ensure smooth sailing for your occupational-health booking system.
£5 GBP in 40 days
5.6
5.6

Hello I reviewed your Stabilise Node-React Health Platform project and understand that you need an experienced developer to stabilize your existing healthcare platform, resolve production issues, improve code quality, and ensure the application is reliable, secure, and ready for future development. I can troubleshoot your React frontend and Node.js backend, fix bugs, optimize APIs and database queries, improve performance, refactor legacy code, strengthen error handling, and resolve deployment issues. I follow Git-based workflows, write clean, maintainable code, and ensure every change is thoroughly tested before deployment. My goal is to deliver a stable, high-performing healthcare platform that is easier to maintain, supports future enhancements, and provides a seamless experience for both users and administrators. A few questions What are the highest-priority issues affecting the platform today Which database and cloud infrastructure are currently being used Do you have a staging environment and Git repository available for development Thanks
£5 GBP in 40 days
5.1
5.1

★•══•★ Hi client ★•══•★ I have experience stabilizing and improving production web applications built with React, Node.js, APIs, databases, and cloud-based platforms. I specialize in taking existing codebases, identifying root causes of bugs, improving reliability, and creating maintainable systems for long-term development. My approach will be: ✔️ First, I will audit the current repository, review the booking, questionnaire, certificate, and API workflows, identify crash sources, and fix issues without introducing regressions. ✔️ Then, I will refactor React components for consistency, responsiveness, and better user experience while strengthening the Node.js backend with structured error handling, logging, validation, and automated tests. ✔️ Finally, I will establish a reliable Git workflow with clear commits, pull requests, CI testing, and ongoing support for future improvements. One key question: Do you already have CI/CD pipelines and automated tests in place, or should I help establish the testing and deployment workflow as part of the stabilization process? Best regards. Rico
£5 GBP in 40 days
5.0
5.0

Hi, I have extensive experience debugging and stabilizing existing React and Node.js applications, and I'm confident I can make your booking system production-ready. I'll begin with a thorough code audit to identify the root causes of crashes, fix UI inconsistencies across all portals, and strengthen the API with robust error handling, logging, and automated tests to prevent regressions. I follow clean Git workflows with descriptive commits and pull requests, ensuring every change is reviewable and maintainable. My rate is $7/hour, and I'm available for long-term collaboration with regular progress updates. I can start immediately.
£7 GBP in 40 days
5.2
5.2

With Solves Inn, you're not just hiring a freelancer; you're partnering with an experienced software development studio that understands the importance of reliable and scalable solutions. My team and I have a deep understanding of the Node.js and React stack. We have successfully tackled complex projects involving code stabilization, UI/UX improvements, and API hardening, which precisely aligns with your project requirements. We excel at managing existing codebases and delivering exceptional results with minimal disruptions. From your description, it seems there are existing pain points that need immediate attention to transform this platform into a robust and crash-free application, and this is where our expertise comes in. Our collaborations are marked by open communication channels, clear code documentation, and a meticulous code review process through a VCS system like Git- essential elements for efficient project management. I'm happy to work with you on a rolling basis, adapting to your specific needs be it hourly, daily, or weekly rate arrangements. Together we can ensure zero critical crashes after thorough testing cycles and make sure all interfaces load seamlessly.
£4 GBP in 34 days
4.9
4.9

I can quickly stabilize your live occupational-health booking system and support its ongoing development. The Node.js + React app has recurring crashes around bookings, questionnaires, and certificates, plus UI glitches across all three portals. I’ll audit the repo, fix root causes without regressions, clean up React components for consistency, and harden the backend with solid error handling, logging, and tests. I specialize in untangling and production-hardening existing full-stack codebases, delivering clean Git PRs and clear communication. Quick questions: Which flows feel most unstable right now? Any existing tests or CI pipeline in place?
£3 GBP in 20 days
5.0
5.0

Wokingham, United Kingdom
Member since Sep 26, 2019
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