Lead Developer for Nonprofit Mobile-Responsive Web Platform - 45 Day Sprint

@Microlent

‼️⚠️‼️I am ready to Mow. This is exactly the kind of build where privacy, grant compliance, and execution discipline matter more than flashy features. I’m comfortable working with existing production SQL databases, building custom Node.js/Express APIs, and delivering mobile-first React apps without introducing unnecessary platforms. I’ve worked on systems where address visibility, role-based access, and audit trails were non-negotiable, and I understand the risk of getting those wrong in a nonprofit context. Group Event privacy approach: Addresses stay server-side protected and are never exposed in public feeds. The API only resolves a homeowner’s address when a volunteer transitions into a committed state, and for group events, access is scoped strictly to the group lead’s role and assignment, not the roster or public job feed. UI never receives address data unless the API authorizes it. I can fix the login/auth issue immediately, then move straight into the 4 modules with the Definition of Done as the contract. If this sounds aligned, open the chat and let’s confirm scope and timelines. Happy to walk through my Node.js, SQL, and Twilio experience in detail—open the chat and we’ll get started quickly. Looking forward to reviewing the Master Technical Blueprint once shortlisted. Best, Jenifer

@tretanz

Hi, I am interested in your project. I can help you with everything you're looking for. I would like to have a one-on-one discussion via chat so I can clarify my understanding and workflow for you. With over 10+ years of experience, I am committed to delivering high-quality work on time. I look forward to collaborating with you. Thanks Tretanz

@irsolutions

As a lead developer with extensive experience in mobile-responsive web platforms, I understand the importance of automating backend operations for nonprofit organizations like yours. Your project to connect volunteers with homeowners in need of lawn care aligns perfectly with my expertise in building custom applications using React and Supabase. In past projects, I have successfully developed solutions in the nonprofit sector, including volunteer management systems and community engagement platforms. My experience in handling complex logistics and ensuring seamless user experiences will be instrumental in delivering the functionalities outlined in your technical blueprint. To ensure a successful collaboration, I am ready to leverage my skills in Supabase Row Level Security and Twilio API to meet your project requirements. I am confident in my ability to handle the privacy concerns of "Group Events" by implementing robust logic to safeguard homeowner addresses. If you are looking for a dedicated technical project manager and developer to bring your vision to life, I am ready to mow through the challenges and deliver a high-quality solution within the specified timeline. Let's discuss further how we can work together to achieve your goals.

@managersingh

"I am ready to Mow." Hey Brian, I’ve led and built React web apps connected to existing SQL databases via custom Node.js/Express APIs on VPS environments. I’m comfortable jumping into live schemas, writing secure endpoints, fixing auth issues fast, and integrating Twilio (SMS/voice masking) for production use. I’ve also shipped mobile-first dashboards with geolocation (Leaflet/OpenStreetMap) where privacy logic is non-negotiable. For Group Event Privacy - My Approach: Addresses never appear in public feeds or client-side payloads. The API ensures role-based access: only authorised group leaders with an active commitment can access address data through a scoped endpoint that is logged and time-bound. Until the commitment is finalised, all other users will see anonymised geo-bounds. Privacy is enforced server-side, not through front-end trust. Quick questions: > Is the existing SQL database MySQL or PostgreSQL, and do you have a staging clone for development? > On the immediate auth issue; are you using JWT sessions, cookies, or a hybrid approach? If shortlisted, I'm ready to review the Master Technical Blueprint right away, as well as discuss an accurate project quote and lock scope for a clean launch on February 28. Thanks Manager Singh

@Julian29

Hi There !! After reading your request, I found it to be rather intriguing. I can provide timely, high-quality assistance for your project as a senior full stack engineer. Let's talk further when we speak over the phone or chat. Awaiting for your positive response. Thanks

@SBITServices

Hi Brian, I am experienced in developing mobile-responsive web platforms using React and Supabase. I have a thorough understanding of the project requirements and am confident in delivering a high-quality solution within the specified timeline. Let's discuss further in chat. Regards, Sai Bhaskar

@alexcd2000

I’m ready to Mow. how do you want to handle the geolocation features with respect to the volunteer dashboard? Also, when we talk about the "3-Stage Commitment Flow," are we using custom Supabase functions there, or keeping it low-code? I'm all set for the mobile-first design with React and Supabase, but clarity helps keep lawns trim! *** Preferred Freelancer - great reviews *** Engineer also... Fluent in English, German and Spanish native. ---------------IT Knowledge - CMS: WordPress (Plugin dev. & Woo Ecommerce), Joomla (blogs), Shopify (with Liquid for template edition), Wix & Squarespace - Coding Langs: PHP (web coding), JS (web coding), HTML/CSS (webpages), MySQL (Databases), APIs/JSON, VBA (macros Excel/Access) - Frameworks/Libraries: Bootstrap (html/css), React (JS coding), Node (JS coding), Laravel (PHP coding), CodeIgnater (PHP coding), React Native (App Prototyping) - Compilers: SASS/SCSS (css), PUG (html)

@sagarjain4010

Hi I’m a full-stack developer and technical project manager, so I can handle both the coding and the project delivery end-to-end. I’ve built mobile-first apps using Node.js/Express, React/Vite, MySQL/PostgreSQL, with Twilio for SMS/voice, geolocation features, complex workflows, and responsive dashboards. For volunteer events, I use role-based access so sensitive data, like addresses, is visible only to authorized users. Here’s how I’d tackle your project: -Fix login/auth issues to stabilize the platform. -Build the volunteer dashboard and automation flows, including geolocation and commitment stages. -Implement the Community Layer for pledges, rotations, and privacy. -Develop admin modules for reporting, equipment tracking, and compliance. -Follow your “Definition of Done” checklist for full grant compliance. I’m confident I can deliver a secure, mobile-first, and fully functional volunteer management platform and is ready in 45 days. I’d love to review the Master Technical Blueprint and get started right away. Thanks Sagar

@loveetechnology

I am ready to Mow. This project succeeds or fails on whether volunteers can reliably show up while homeowner privacy and grant reporting stay intact, not on how flashy the UI looks. The risk I see is breaking trust by exposing addresses or losing audit data during the migration, so I would treat the existing SQL database as the source of truth and build the Node/Express layer as a controlled gateway that every action passes through. That also lets Twilio and Lovable stay simple. For Group Events, the public feed would only show a geographic tile and time window, while the group lead receives the exact address only after roster lock and commitment, keeping Privacy Guard enforceable.

@eliaa

Dear Hiring Team, I am excited about the opportunity to lead the development of your nonprofit’s mobile-responsive web platform. With over 9 years of experience in full-stack development using Laravel, Vue.js, and Flutter, Smart Sols is well-equipped to deliver a robust, user-friendly solution that connects volunteers with elderly and disabled homeowners seamlessly. We understand the importance of accessibility and responsiveness for your target audience, and our expertise in crafting intuitive UI/UX designs through Figma ensures an engaging and inclusive experience. Our team is confident in managing a 45-day sprint to deliver a high-quality platform on time, meeting all your functional and performance requirements. We look forward to collaborating closely and making a meaningful impact through technology. Thank you for considering our proposal.

@teodorgeorge

Hello, I am ready to Mow. I have strong experience working with Supabase, including Row Level Security, and integrating APIs like Twilio and Google Maps. I understand the critical importance of mobile-responsive design, especially for complex forms, ensuring they remain simple and intuitive on smartphones. Regarding the Group Event privacy, I would control address visibility at the database level using Supabase RLS, allowing only authorized group leads access while keeping addresses hidden from the public feed. I am confident in building a reliable backend and a smooth React frontend within your stack to meet your nonprofit's goals effectively. Thanks, Teo

@pinkeegupta

Hi I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart and for web and backend on react js and node js, Python Django, Power BI, Scikit-learn, Data Science AI ML, PyTorch, TensorFlow, SparkML , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju

@Azursol

"I am ready to Mow." As a seasoned PHP and WordPress expert with over a decade of experience, I have successfully delivered results for clients in the United States. My expertise in PHP, WordPress, and project management align perfectly with your requirements. I have a proven track record in backend and frontend development, API development, and working with technologies like Twilio. I am confident that I can help bring your vision to life and achieve your goals effectively. Let's collaborate and turn your project into a success. Check out my portfolio for more insights into my previous work. Looking forward to discussing your project further. Thank you. Best, Ali Zahid, CEO, Azur Solutions.

@kareemmaize

I am ready to Mow. The hardest part of this platform isn’t React or maps, it’s enforcing privacy and commitment logic while keeping the mobile experience simple for volunteers. I’ve seen similar “Uber-style” nonprofit systems fail when address visibility leaked through feeds, logs, or admin shortcuts, creating both safety and compliance issues. I handle this by treating Supabase RLS as non-negotiable, pushing all address access through Edge Functions, and validating every role transition in the 3-stage commitment flow. I have hands-on experience with Supabase Auth, Row Level Security, Edge Functions, Twilio SMS flows, and Google/geo APIs in production systems. For Group Events, the public feed exposes only anonymized jobs, while the group lead receives address access via role-scoped RLS after pledge confirmation. I’d start by fixing the auth issue, then execute modules sequentially against your Definition of Done. Can the Feb 28 date slip at all if grant reporting needs adjustments?

@leenadvnani6

Good Day Brian ✌️ I have carefully reviewed the project requirements and am confident in my ability to deliver a high-quality solution for your nonprofit's mobile-responsive web platform. I am excited about the opportunity to collaborate on this project with you, Brian S. Why Choose me? - Unlimited Revisions: Ensuring the project meets your exact specifications. - Unique Creations: Tailoring the platform to your organization's unique needs. - Money-Back Guarantee: Ensuring your satisfaction with the final product. - 24/7 Communication: Available to discuss and address any concerns promptly. Browse my portfolio for quality work samples: https://www.freelancer.com/u/leenadvnani6 Let's discuss your project further in the chat. Best regards, Leena Kumari :)

@mughiraaa

Hi, I have reviewed the details of your project. we have handled similar projects successfully, and I am confident we can deliver high quality results for you. i will first understand exactly what you need, then plan everything step by step using reliable tools to make sure the work runs smoothly. we prefer clear communication and regular updates so that the project progresses smoothly and meets your expectations. Let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in the chat to show relevant examples of our past work. looking forward to your response. best regards, Mughiraa

@GameOfWords

Lead Developer (or Team) for Nonprofit Mobile-Responsive Web Platform (React/Supabase) - 45 Day Sprint I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.

@vladang

I am ready to Mow. I have extensive experience building mobile-first web applications using Supabase and React (Vite), including implementing Row Level Security (RLS) for granular data access, integrating Twilio for SMS/voice workflows, and working with mapping APIs like OpenStreetMap/Leaflet. I’ve delivered complex volunteer, B2B2C, and operations platforms that handle sensitive user data while maintaining clean, responsive mobile experiences. For the "Group Event" privacy requirement, I would implement RLS policies so that only authorized users (the group lead or assigned volunteers) can access homeowner addresses, while all public feeds or dashboards automatically mask this data. This ensures addresses are never exposed to general users while supporting operational workflows. My approach would be to follow your 45-day sprint with a clear Definition of Done checklist for each module: rebuilding the Volunteer Dashboard, implementing the 3-Stage Commitment Flow, building Group Events and Volunteer Rosters, and adding automated reporting and grant compliance features. I’ll also address the existing login/auth issue immediately to ensure a clean start. I can start immediately, maintain daily communication, and deliver the platform fully functional by February 28th, with clean, documented code ready for ongoing use and handoff. Thanks, Vladimir

@itswahabahmad

I am ready to Mow! My name is Wahab, and although I do not have direct experience with your tech stack, I believe my broad skill set of Android, API development, mobile app development, and PHP can be perfectly harnessed to man your project. As an experienced Unity Game Developer and AR/VR Specialist with over six years in the industry, I understand how crucial user experience is to a project and how to streamline logistics. Additionally, as a veteran in AWS DevOps, I possess an exceptional ability to work with existing systems and make them better. While this isn't a game development project per se, my expertise in creating complex systems and optimizing workflows would be incredibly relevant to your goals. Besides, having worked within grant-funded projects that demanded strict budgets and delivery timelines before, I understand how critical adhering to deadlines while maintaining quality is. To sum it up, though my specialization might differ slightly from the demands of your project on paper, my extensive problem-solving skills, adaptability, and devotion to the task at hand equip me to rise to any challenge. Given the opportunity to collaborate on this meaningful project for your non-profit organization by merging your existing SQL database with Lovable's frontend for enhanced logistics, I assure you my dedication will remain unmatched. Further steps can be taken on further discussions!