I’m looking for an experienced Next.js developer to help update and improve my existing website. The site has already been built in Next.js, and I’m looking for someone who can work with the existing codebase not rebuild it from scratch. This will begin as a small project, but I’m looking for someone I can continue working with long-term as we add new features and make ongoing improvements. Responsibilities ● Update and improve our existing Next.js website ● Make design and content changes ● Create new pages and sections as needed ● Improve mobile responsiveness ● Optimize website speed and performance ● Fix bugs and troubleshoot issues ● Ensure SEO best practices are followed ● Deploy updates through Git/Vercel (or similar) Required Skills ● Strong experience with Next.js ● React.js ● JavaScript/TypeScript ● HTML/CSS ● Tailwind CSS (preferred) ● Git/GitHub ● Experience deploying with Vercel ● Strong attention to detail ● Excellent communication in English Bonus Skills ● Experience with Stripe integrations ● CMS experience (Sanity, Contentful, etc.) ● SEO optimization ● Experience with luxury brands or high-end website design ● UI/UX design experience What I’m Looking For ● Someone who communicates well and responds promptly ● Someone who takes pride in clean, organized code ● Someone who can make recommendations rather than simply follow instructions ● Reliable and available for ongoing work To Apply Please include: 1. Links to Next.js websites you’ve built. 2. Your portfolio or GitHub. 3. How many years you’ve been working with Next.js. 4. Your hourly rate or fixed-price estimate. 5. Your availability. 6. Please start your proposal with the word “Charleston” so I know you’ve read the entire post. I’m looking forward to building a long-term relationship with the right developer.

I'm the founder of a social group-planning app for deciding where to go out with friends. The frontend is already built and deployed: Next.js, TypeScript, Tailwind, hosted on Vercel. I'm looking for one experienced developer to take it from working prototype to App Store. Scope (this is the whole engagement): 1. Code and security review of the existing codebase, flag the top risks 2. Replace localStorage with a real backend: database, auth, and API (Supabase or Firebase preferred) covering auth, profiles, friends, group sessions, ratings, and notifications 3. Wrap the app for iOS using Capacitor and get it running in TestFlight 4. Support through App Store submission and review Not in scope: new features, redesigns, or a rebuild from scratch. The product is feature-frozen for launch. Requirements: US-based Strong React/Next.js and TypeScript experience Has personally shipped at least 2 apps currently live in the App Store (send links) Experience with Supabase or Firebase Capacitor experience a plus How I'll hire: shortlisted candidates get repo access after signing an NDA and IP assignment. I'll ask you to spend 30 minutes in the code and tell me the 3 biggest risks you see. Contract is milestone-based: 30% backend live, 40% iOS build in TestFlight, 30% App Store approved. Please include: links to your 2 shipped apps, your estimated timeline for this scope, and a fixed-price bid.

Description We're a real estate team in Tampa Bay. We want a private web dashboard that creates our marketing content for us — on-brand, from our own listings and photos — instead of our team making everything by hand. The core idea: a team member logs in, uploads our brand system once (logo, colors, fonts, headshots, example posts we like), and the AI keeps that brand context saved and applies it to everything it generates from then on. What the dashboard generates: Listing lifecycle content — pick one of our listings, upload the photos, get: • Coming Soon / Just Listed / Open House / Price Improvement / Under Contract / Just Sold graphics (Instagram square + story sizes, Facebook) • Listing flyer (PDF) and "Just Listed / Just Sold" postcard PDFs for the print shop • MLS-ready listing descriptions and platform-specific captions (IG, FB, TikTok, LinkedIn) with hashtag sets Ads — Facebook/Instagram ad creatives (feed, story, carousel) + Google display sizes, with 3–5 ad copy variants (headlines, primary text, descriptions) per listing Short-form video — listing videos for Reels/TikTok built from our photos (motion/slideshow with captions and music), and AI video generation (Higgsfield AI or similar — tell us what you'd use) for lifestyle b-roll and listing teasers; plus reel scripts with hooks for agent talking-head videos Evergreen social — market update graphics, neighborhood spotlight posts, buyer/seller tip carousels, testimonial/review graphics, agent spotlight and just-closed celebration posts — so our feed never goes dark between listings Writing — AI blog drafts we review and publish to our website, just-listed email blasts, open house invite emails, Google Business Profile posts Dashboard features: • Login/logout for our team (a few users) • Brand system upload + management (the AI's saved brand context) • Asset/photo library per listing • Content history — everything generated is saved, re-downloadable, and regeneratable • Content calendar/scheduler — assign generated content to dates, see a "today's post" with reminders, mark as posted (no auto-posting to platforms — we post manually) • Simple and clean UI — this is a daily-use internal tool, not a public site How we want it built: • Next.js 16 (App Router) + TypeScript + Tailwind CSS v4, deployed on Vercel (required — current versions, no pages router) • Supabase for auth, database, and file storage — direct Postgres with Drizzle ORM (do not use Supabase's Data API) • AI image generation (GPT image gen / similar) drives the designs — fed with our brand kit, reference images, and listing context so everything comes out on-brand; LLM APIs (Claude/OpenAI) for all writing • We provide: our full brand assets, our listing data, and examples of the exact style we want — we'll walk you through the details once we start talking You should have: • Shipped recent Next.js (App Router) + TypeScript + Tailwind apps with Supabase (show us 1–2) • Built with AI APIs in a real product — image generation and LLMs (not just chat demos) • Some experience with video generation or programmatic video (bonus, not required) • Clear written English for async updates To apply: start your proposal with the word LIGHTHOUSE, link your most relevant project, and tell us in a few sentences how you'd make AI image generation produce consistently on-brand output from an uploaded brand kit. Applications that skip this are declined.

We’re hiring a hands-on full-stack developer to help build and maintain a production truck dealer management platform supporting inventory, financing workflows, logistics, and internal operations. You’ll work in a TypeScript monorepo building React + TypeScript features with MUI, React Query, React Hook Form, and Zod, maintaining Express APIs and Firebase Cloud Functions, evolving shared domain models used across frontend and backend, and shipping reliable, testable improvements across core business areas.

We are seeking a part-time frontend-leaning fullstack developer to migrate our marketing website from WordPress to a Next.js + Sanity stack. The ideal candidate will have experience in both frontend and backend technologies, with a strong focus on Next.js and Sanity. The role involves ensuring a seamless transition while maintaining the site's functionality and design. The commitment is around 20 hours per week.

We're looking for a senior full-stack engineer to take on hands-on work across our web platform, architecting features, building APIs, and delivering polished, performant UI. Looking for someone that can do full stack but is heavy UI developmenet leaning. You'll be doing: Building full-stack features end-to-end (dashboards, booking, payments, admin tools, etc.) Modernizing existing code and reducing technical debt Node.js services, REST APIs. Performance optimization across front-end and backend CI/CD, automated testing, container-based deploys You should have: 8+ years building production web apps Strong TypeScript across a modern framework (React) Solid Node.js / Express backend experience AWS or GCP, Docker, and CI/CD experience Comfort with PostgreSQL Automated testing (Jest, Vitest, or similar) Bonus: AdonisJS, Golang

PLEASE NOTE: ALL DIRECT CALLS AND EMAILS WILL BE BLOCKED, AND SENDERS WILL BE DISMISSED FROM CONSIDERATION, EVEN ON UPWORK. WE WILL NOT WORK WITH ANYONE WHO CONTACTS US OUTSIDE OF UPWORK. ZERO EXCEPTIONS. We are seeking a full-stack developer for both the ongoing maintenance of current products as well as the development of new products. We are a sports media company that creates applications that help fans be more effective when it comes to attending live sporting events. EXISTING PRODUCT DEVELOPMENT: Our first product launched two months ago: calendar.thestadiuminsiders.com, a custom calendar which incorporates team sports calendars (NFL, NBA, NHL, MLB, etc.) plus concerts/special events into a single view for each city. This required the integration of calendars from multiple sources in multiple formats, consolidated into a single view. Lots of moving pieces. The calendar has been developed, successfully launched, and is very stable. But there is ongoing maintenance to do, as well as continued enhancements to make. Our calendar was built in React, Next.js, and Firebase (this was not an AI developed product: it was built the old fashioned way). It also incorporates ICS feed parsing, which is critical. You need to understand these elements, as well as complex data architectures and data management. (Our advice: please don't approach your proposal by telling us about all of the pitfalls and traps waiting for us. We've had great developers and product managers working extremely hard to build a great product, and we haven't overlooked the complexities and nuances. We need someone to take a really well-built product and build on top of it, not tell us how they're going to come in and save it from assured collapse. We're happy to hear that you understand some of those traps and nuances and complexities. Just please don't assume we haven't thought of them. Better to focus on why your experience is a good fit, rather than explaining coding to us). NEW PRODUCT DEVELOPMENT: Separate from the above product, we have a pipeline of products that are on deck that are being developed via vibe coding (specifically in Lovable), but we need a developer who can push them the last 10 yards before launch. Porting these projects from Lovable into Claude is completely fine (we know Claude is the stronger dev platform), but our front-end team is working in Lovable because it is an easier interface. But I expect we will move the projects over to Claude once we have the right person in place to assist with that. General Requirements: --NextJS --React --Firebase Functions and Firestore --NoSQL design --ICS calendar formats --CSV uploading --Vercel --Vibe coding (specifically taking products built with Lovable and making them production-ready) An understanding of sports is helpful, as it makes it easier to understand the relationship between teams, venues, leagues, and cities. You don't need in-depth specific understanding of stats or players or such, but an understanding of sports leagues will make it easier to understand the tasks at hand. In terms of approach, we will first want to make a bunch of quick fixes/improvements to the calendar app, followed by two more substantive upgrades. After that we will turn our attention to new products. Please note: 1) Every AI response is exactly the same (literally). You're not setting yourself apart at all, and we can't tell if you have any idea what you're talking about or what our project requires. Also ... our AI filter catches 99% of AI submissions. Use AI at your own risk. 2) We vet every candidate before speaking to them. If your location, experience, education, and skills don't match your other public profiles, we will not be able to engage with you. If Upwork says you're in Miami, and LinkedIn says you're in New York, that will be a red flag. 3) Bids above our stated range will be declined. Sorry for the laundry list: recruiting has become very difficult in the age of AI, so we just want to advise everyone upfront on our process. Thanks -- we appreciate your interest, and we look forward to finding someone great. This is a fun product and an interesting company, especially for someone who likes sports.

We are building a Workspace, a business operating system, and need a Full-Stack SaaS Engineer to lay the foundation for our MVP. The project involves using Next.js, Supabase, Stripe, and Vercel to create a scalable and efficient system. The ideal candidate will have experience in SaaS development and be able to work independently to deliver high-quality results. The budget for this project is $10,000.

We're hiring a senior front-end contractor to take ownership of the front end of CMMC.builders, a production compliance-assessment platform, and then support other applications in our portfolio on an ongoing basis. The app was built quickly using Replit and AI-assisted ("vibe coding") workflows — it works, is in production, but it was not written with long-term maintainability as the top priority. We need someone who can read a large AI-generated codebase, form an independent judgment about what's solid versus fragile, and systematically bring it up to a level you'd defend in a code review at a company that values engineering. This isn’t a "rewrite everything" job. It's an audit-and-refactor process: understand what exists, identify risks, fix them without breaking production, and leave the codebase in a state a regular team could safely build on. This is a long-term role supporting a well-funded, high-stakes MVP, with real potential to turn into a full-time position for the right person. WHAT YOU'LL ACTUALLY BE DOING Phase 1 — Audit (first 1–2 weeks) Review the front-end architecture (component structure, state management, data-fetching patterns, routing, type safety) and prepare a written report on your findings, prioritized by risk and effort. Identify AI-coding issues specifically: duplicated logic, inconsistent patterns across similar features, overly broad "any" typing, prop-drilling where shared state should be, dead code, and components that mix data-fetching, business logic, and presentation. Flag any security or correctness concerns on the front end (unsanitized rendering, client-side trust of server-controlled data, broken access-control assumptions). Phase 2 — Refactor (ongoing) Carry out the refactor plan in reviewable, incremental PRs — no large-scale rewrites. Establish or tighten conventions: component boundaries, shared hooks, data-fetching layer, form/validation patterns, error and loading states. Improve type safety and eliminate unsound patterns introduced by AI-assisted coding. Add or enhance test coverage on the areas you modify. Document decisions throughout to keep the codebase understandable for the next person (human or AI). Beyond CMMC.builders Once the initial audit and top-priority refactoring are stable, you will work on front-end tasks across other applications in our portfolio — developing new features, conducting additional audits, and providing senior front-end support. OUR STACK React 19 + TypeScript, built with Vite TanStack Query for data-fetching and caching, wouter for routing Zod for schema validation Express (Node) backend, PostgreSQL via pg (no ORM — handwritten parameterized SQL) Vitest + Playwright for testing Hosted on Replit, deployed via Replit Autoscale YOU SHOULD APPLY IF You have 5+ years of production React/TypeScript experience and can cite real shipped projects, not just tutorials. You've performed codebase audits or major refactors before — not just greenfield projects. You can share a time when you inherited a messy codebase and what you actually changed. You are comfortable reading unfamiliar code quickly, forming your own judgment, and respectfully pushing back if something seems wrong — including AI-generated code that looks superficially okay. You write clearly. The audit report and PR descriptions are as important as the code. You can work independently with minimal oversight and communicate proactively, not just when prompted. NICE TO HAVE Direct experience refactoring or "productionizing" AI-generated or AI-assisted code. Familiarity with compliance, security, or regulated-industry software (this product deals with CMMC/cybersecurity compliance data). Experience using Replit as a development environment. HOW TO APPLY Your proposal must include: A one- or two-sentence example of a real audit or refactor you led on an existing codebase — what was wrong and what you did. A link to a GitHub repo or code sample showing your TypeScript/React coding style (not just a live demo link). The words "compliance refactor" are somewhere in your opening line, so we know you’ve read this posting. Proposals that are templated, copy-pasted, or don't answer the above won’t be considered, regardless of rate.

New website needed for a B2B outsourcing company serving the US mortgage and financial services industry. The site has two main service divisions, each with their own section architecture, operating under one parent brand. We have a clear site structure, page-level content direction, and brand positioning already worked out. We need a developer who can take a design direction and build a clean, fast, production-ready site. We are open to AI-assisted development (v0, Cursor, Claude Code, etc.) and prefer candidates who work this way. Speed and quality both matter.