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  • Fixed price
  • Intermediate
  • Est. budget: $200.00

**Job Description:** We're looking for a frontend developer to recreate the design of a single-page website using **React** and **JavaScript**. The UI/UX design has already been completed—you'll simply be translating the existing design into clean, responsive, and maintainable code. ### Responsibilities * Convert an existing one-page website design into a React application. * Ensure the page is responsive across desktop and mobile devices. * Write clean, well-organized, and reusable React/JavaScript code. * Match the provided design as closely as possible. ### Requirements * Experience with React and modern JavaScript (ES6+). * Strong HTML and CSS skills. * Ability to accurately recreate designs from mockups. * Attention to detail and responsive design best practices. ### Future Opportunities If we're happy with the work, there may be opportunities for additional frontend development projects in the future. These would be separate, paid engagements involving new components and features.

  • Hourly: $50.00 - $70.00
  • Expert
  • Est. time: 1 to 3 months, Less than 30 hrs/week

We are looking for a U.S.-based senior React/Firebase technical lead or software architect to help review and guide an existing SaaS product to pilot launch. The product is already built and deployed in staging. This is not a greenfield build. We need an experienced technical partner who can inspect the current architecture, review contractor work, identify launch risks, and help sequence the remaining work before pilot. Current stack: * React / TypeScript * Firebase Auth * Firestore * Firebase Storage * Firebase Cloud Functions * Firebase Hosting / GCP * GitHub The app is a multi-tenant SaaS platform with organizations, locations, employees, role-based permissions, training modules, SOPs, communications, request-off workflows, handbook acknowledgements, and admin consoles. We need help with: * Reviewing the existing React/Firebase architecture * Reviewing Firestore rules, Storage rules, Cloud Functions, auth/custom claims, and tenant isolation * Reviewing PRs and contractor work * Advising on remaining pilot-readiness work * Helping sequence frontend cleanup, UX/UI polish, admin console structure, and final security review * Identifying risks before real pilot customers are onboarded Important experience: * React + TypeScript SaaS applications * Firebase Auth / Firestore / Cloud Functions * Multi-tenant architecture * Role-based access control * Security-minded code review * GitHub branch / PR workflow * Ability to explain technical tradeoffs clearly We would like to start with a small paid technical review first. If it is a good fit, this may turn into an ongoing technical lead/advisor role. We are not looking for someone to blindly rebuild the app. We need senior judgment, architecture review, launch-risk identification, and practical guidance.

Posted 3 weeks ago
  • Hourly
  • Expert
  • Est. time: 1 to 3 months, Less than 30 hrs/week

We are looking to do a new build of our patch bay label designer tool. Customers are currently able to pick their model of patch bay, add text labels, colorize, and group. They can then checkout and it creates print ready artwork for our team to produce. The UI is a bit clunky and there are some features we want to add such as an admin tool to add and edit labels. You can see the current tool here: https://create.traceaudio.com/

  • Hourly: $50.00 - $80.00
  • Intermediate
  • Est. time: 1 to 3 months, 30+ hrs/week

Title: React Developer — CRM Integration (Freelance / Contract) We're looking for an experienced React developer to help finalize a custom-built CRM for a creative services company. The app is already live and functional — we need help integrating third-party APIs including Pipedrive, Google Workspace (Gmail, Drive, Calendar), JustCall.io, and Markup.io, plus wiring up AI tools (Gemini, Gamma.app). Stack: React, Vite, Tailwind CSS, Base44 (BaaS), Deno backend functions What you'll do: - Connect OAuth-based integrations (Google, Pipedrive, JustCall) - Build automated email/workflow triggers via backend functions - Polish UI components and fix edge-case bugs Ideal candidate: 3–5 yrs React experience, comfortable with REST APIs and OAuth flows, bonus if you've worked with Pipedrive or Google Workspace APIs. Estimated: 60–100 hrs | Milestone-basedThis is a part-time engagement for 1 to 3 months. Freelancer Project Brief — Flyer View Group CRM Project Overview Flyer View Group is a geospatial marketing firm that produces custom murals, posters, story maps, and dynamic map programs for commercial real estate and economic development clients. We have a custom-built internal CRM (built on Base44, a React + Vite + cloud-backend platform) that manages the full lifecycle of prospects, deals, contacts, organizations, and projects. We need an experienced freelance full-stack developer to: Complete and stabilize all existing CRM functionality (described below) Wire up live integrations with our third-party tool stack Deploy and test the system so it's production-ready for daily use by a small team What's Already Built The CRM currently includes: Dashboard — activity summaries, pipeline metrics, revenue charts Prospecting — outreach tracking with AI-assisted qualification Contacts & Organizations — tabbed detail slide-over panels, quick actions Pipeline — Kanban-style deal board with stage drag-and-drop Projects — grid/list views with Pipedrive-style project cards, stage transitions, subscription tracking Activities/Tasks — logging, scheduling, assignments, priority tracking Mail page — stub ready for email integration Backend functions — deal-to-project conversion, proof tracker, subscription renewal alerts, outreach automation stubs AI Assistant — global sidebar AI agent (Base44 in-app agent) Work Required 1. Polish & Wire Up Internal Functionality Fix any broken UI states, edge cases, or incomplete components Ensure all entity relationships (Deal → Project → Contact → Org) work end-to-end Complete the proof versioning workflow (version bump → task creation → notification) Finalize subscription renewal alert automation (60/30 day triggers) Ensure all slide-over detail panels are fully functional with edit/save/delete 2. Third-Party Integrations Service Integration Goal Google Workspace (Drive, Gmail, Calendar, Docs) Auto-link Drive folders per project; log emails as activities; sync calendar events to Activities; create Docs from project templates Pipedrive Two-way sync of Deals, Contacts, and Organizations via Pipedrive REST API; map CRM stages to Pipedrive pipeline stages Markup.io Embed or deep-link Markup.io review sessions to project proof records; store review URLs on the Project entity JustCall.io Click-to-call from Contact/Prospect records; log inbound/outbound calls as Activities automatically via JustCall webhook Gemini (Google AI) Power AI-assisted prospect qualification scoring, outreach message generation, and project notes summarization via Gemini API Gamma.app Store and display Gamma presentation links per project (partially built); add ability to generate a Gamma link stub from within the project record app.atlas.co Store and display Atlas map links per project; integrate link management into project detail panel 3. Automation Wiring Connect existing backend function stubs to real API calls Set up and test all Base44 automations (entity triggers + scheduled tasks) Ensure webhook endpoints are secured and validated 4. Testing & Documentation End-to-end QA of all workflows Document integration setup steps (API keys, webhook URLs, OAuth scopes) Provide a brief handoff guide Required Qualifications Must Have: 3+ years of React development (hooks, React Query, component architecture) Experience with REST API integrations and OAuth 2.0 flows Familiarity with webhook-based event handling Strong JavaScript/TypeScript skills Experience integrating Google Workspace APIs (Drive, Gmail, Calendar) Ability to read and work within an existing codebase without rewriting everything Nice to Have: Prior experience with Pipedrive API or similar CRM APIs Experience with Base44 or similar BaaS platforms (Supabase, Firebase) Familiarity with JustCall, Markup.io, or annotation/review tools Experience with Gemini / Google AI Studio APIs UI/UX sensibility to maintain the existing dark, premium SaaS design system Tech Stack Document Frontend Layer Technology Framework React 18 (Vite) Routing React Router v6 State / Data Fetching TanStack React Query v5 Styling Tailwind CSS v3 Component Library shadcn/ui (Radix UI primitives) Icons Lucide React Animations Framer Motion Charts Recharts Drag & Drop @hello-pangea/dnd Forms React Hook Form + Zod Date Utilities date-fns Backend / Platform Layer Technology Platform Base44 (BaaS — database, auth, functions, agents) Backend Functions Deno Deploy (TypeScript/JS serverless handlers) Database Base44 managed NoSQL (entity-based schema) Auth Base44 Auth (JWT, Google OAuth, email/OTP) File Storage Base44 Storage (public + private file URLs) AI / LLM Base44 InvokeLLM (OpenAI GPT-4o-mini default; Gemini configurable) In-App Agent Base44 Agent SDK (chat UI + tool permissions) Automations Base44 Automations (scheduled, entity-triggered, connector webhooks) Integrations Required Service Auth Method API Type Google Workspace (Drive, Gmail, Calendar, Docs) OAuth 2.0 (Base44 Google connector) REST + Webhooks Pipedrive API Token / OAuth REST Markup.io API Key REST JustCall.io API Key + Webhooks REST + Webhooks Google Gemini API Key (Google AI Studio) REST Gamma.app Manual URL (no public API) Deep Link app.atlas.co Manual URL / API Key (if available) REST / Deep Link Infrastructure Notes All backend logic runs as Deno serverless functions — no Node.js, no Docker Secrets/API keys stored as Base44 environment variables (never in source code) No separate database or hosting needed — Base44 handles all of it The codebase is a single React SPA deployed via Base44's hosting Deliverables Fully functional CRM with all existing features working Live integrations for all 7 services listed above All Base44 automations configured and tested API key / webhook setup documentation Handoff notes for ongoing maintenance Estimated Scope ~80–120 hours depending on experience level with the tools involved. Fixed-price bids preferred with milestones. Please include examples of prior CRM integrations or API work in your proposal. Platform: Base44 (base44.com) — Freelancer must be comfortable reading existing React/Deno code and working within the Base44 ecosystem. A 1-hour paid discovery call is required before work begins.

  • Fixed price
  • Intermediate
  • Est. budget: $500.00

Overview I’m the Founder & CEO of an early stage firm working at the intersection of digital intelligence and institutional risk management. I’m looking for a Framer specialist to turn an already developed narrative into a clean, professional landing page that helps us credibly approach enterprise and institutional partners. This is a focused, execution heavy project: we are not looking for a rebrand or a full product redesign, but for a high quality “digital front door” that can be built and shipped in under a week. Scope of Work • Set up a 1–2 page marketing site (primary landing page + simple “About / Contact” or anchor sections) in Framer. • Implement a layout that feels appropriate for an early B2B / institutional startup (not consumer / agency style): o Clear hero section with value proposition and primary CTA. o Sections for: problem framing, what Faro Meridian does, who it’s for, founder/credibility, and contact. o Optional: simple “How it works” or “Use cases” strip. • Translate provided copy and structure into a visually coherent, responsive design. • Ensure mobile responsiveness and basic accessibility (legible type, contrast, keyboard friendly buttons/links). • Light visual identity work as needed: o Selecting typography and color palette aligned with our existing tone. o Using existing logo/visuals (if provided) or creating simple, tasteful stand in treatments (no heavy illustration work required). • Integrate: o Contact form (can be native tool, Formspree, etc.). o Basic analytics (Google Analytics, Plausible, or similar — I’ll provide credentials). • Handoff: o Transfer ownership of the project to my account. o Short Loom or written walkthrough of how to edit copy, add sections, and publish changes. Deliverables • A live, production ready Framer site on a temporary URL. • All source project files handed over to my account. • Simple style guide inside the tool (font choices, color tokens, button styles, etc.). • Up to 1–2 rounds of minor visual and copy layout revisions within the 1 week window. Ideal Profile • 3+ production sites built with Framer (please share links). • Experience with B2B / SaaS / institutional or “thoughtful, editorial” landing pages (not just ecommerce or portfolios). • Strong eye for typography, spacing, and restraint — bias toward clean, minimal, high trust design. • Comfortable working from relatively detailed copy and wireframe guidance; able to push back or refine if something won’t read well on the page. • Able to start within a few days and hit a firm 3–5 day delivery timeline for v1. Technical Requirements • Fully responsive design (desktop, tablet, mobile). • Fast loading page (sensible asset sizes, no unnecessary animation bloat). • Basic SEO hygiene: title tags, meta description, open graph image, heading hierarchy. • Clear, maintainable structure so I can tweak text and sections myself after handoff. Timeline • Hire: within the next few days. • First draft: within 2-3 days of kickoff. • Final revisions & handoff: by day 5 at the latest. Please apply only if this window is realistic for you. Budget & Rates For this kind of focused landing page build, I’m expecting: • Estimated total: in the $500 USD range for the complete scope above (1–2 pages, light brand implementation, and revisions).

  • Hourly: $60.00 - $100.00
  • Expert
  • Est. time: 1 to 3 months, Less than 30 hrs/week

# Overview We're a healthcare analytics company with an internal web portal (built in **Next.js 16 / React 19 / TypeScript / Tailwind CSS v4**) that embeds Power BI reports for our partners. The app works, but it was built quickly and needs to be brought up to a **production-quality standard**. It's a small, focused codebase (~2,400 lines), so this is a high-impact, well-scoped engagement — not a sprawling legacy rescue. We're looking for a senior frontend engineer to either **refactor the existingcode or rebuild it from a clean foundation** (your call — we want your recommendation), and to leave us with a maintainable, tested, polished application. # What you'll be working on A single Next.js App Router application that: - Renders a landing/navigation experience and a set of dashboard pages. - Embeds Power BI reports via `powerbi-client-react` ("App Owns Data"). - Reads a small amount of data from Postgres for user settings. **Authentication is fully handled upstream (SSO) and is OUT OF SCOPE.** You will never need credentials, secrets, or access to our production environment. (See "How we work" below.) # Scope of work 1. **Code quality & structure** — Establish a clean, consistent architecture: sensible component structure, strict TypeScript, and tooling (ESLint + Prettier). The repo currently has no linting or formatting setup. 2. **Testing & CI** — Add a testing setup (unit + a few integration/e2e tests for critical paths) and GitHub Actions CI gates (lint, typecheck, test on PR). There are currently **no tests** — establishing this foundation is a core deliverable. 3. **UI / UX polish** — Implement to our provided design direction: responsive layout, proper loading/error/empty states, and a polished feel around the (heavy) Power BI embeds. **We will provide the design/branding** — you implement it well, you don't need to invent the visual identity. 4. **Recommendation up front** — In an early milestone, give us a short written assessment: refactor vs. rebuild, and your proposed approach. **Out of scope:** authentication/SSO, SEO (the app is private and login-gated), backend/Power BI infrastructure, and anything touching production data. # Required skills - Deep, demonstrable experience with **Next.js (App Router)**, **React 19**, and **TypeScript** (strict mode). - **Tailwind CSS** proficiency and a strong eye for implementing designs faithfully. - Experience setting up **testing (e.g. Vitest/Jest + Playwright)** and **CI pipelines (GitHub Actions)** for frontend apps. - A track record of taking quick-build apps to **maintainable, production-grade** quality. ### Nice to have - Prior **Power BI embedding** experience (`powerbi-client-react`, "App Owns Data") - Accessibility (WCAG AA) and frontend performance optimization experience. # How we work (please read) - We operate in a regulated healthcare environment. You will work against a **sanitized copy of the repository** — no real report IDs, secrets, customer data, or production access. All data is mock/synthetic. - **Hourly engagement** via Upwork's tracker, with a cap. We estimate **~40–100 hours**; we'll set a weekly cap and review progress in milestones. - We value clear communication, small reviewable PRs, and your honest technical judgment over just "doing what's asked."

  • Hourly: $18.00 - $20.00
  • Expert
  • Est. time: 3 to 6 months, Less than 30 hrs/week

We're a fast-moving studio building several SaaS products. The first — closest to launch — is a tool for churches and pastors. A lot of our app is built fast with AI-assisted workflows, which makes it functional but generic-looking. Your job is to give it taste: establish a clean, reusable design system and redesign our core screens so the product feels premium, trustworthy, and genuinely beautiful — then hand polished, dev-ready designs to our developers to build. This starts as a focused contract project — a design system + a redesign of our launch product's key screens — with strong potential to continue ongoing as we add more products. What you'll do Audit our current screens and redesign them into something clean, modern, and premium Build a reusable design system (components, color, typography, spacing, patterns) that our developers build within — so quality stays high without you touching every screen Design user flows and mockups for new features — improve usability, not just looks Hand off dev-ready designs in Figma (organized, spec'd, with all states) that our developers + AI build from accurately Review the built screens against your designs and polish the flows that matter most Bring brand sensibility — for our faith product that means calm, warm, reverent, and trustworthy, not flashy Our setup Our developers build in Next.js + React + Tailwind CSS (often with shadcn/ui). Designs that map cleanly to that world — and a smooth Figma → code handoff — make everyone faster. You don't need to write code, but understanding how design becomes front-end is a real plus. You're a great fit if you Have a portfolio of real SaaS / web-app product design (not just landing pages or logos) Have built or worked within a design system Have strong taste and restraint — you make things beautiful without over-designing Think about user flows and usability, not only visuals Communicate clearly and work independently Can overlap a few hours with US time zones Nice to have Can do light front-end yourself (a "design engineer" who designs and builds in React/Tailwind) Experience designing for faith, community, or trust-sensitive products Comfortable designing within / extending shadcn/ui + Tailwind To apply — answer these (applications without answers are skipped) Share 1–2 SaaS or web-app products you designed. What was the before/after, and what problem were you solving (not just "made it prettier")? Have you built or worked within a design system? Briefly, how? How do you hand designs to developers so they build them accurately? Your part-time weekly availability and US time-zone overlap. Shortlist step (paid) A short paid trial: we'll give you one real screen from our app and ask you to redesign it plus a few sentences on your reasoning. We hire from the trial, not the résumé.

  • Fixed price
  • Expert
  • Est. budget: $3,000.00

I have created a web version of a card-sorting college matching app for high school students. I need it rebuilt as a native iOS React Native app. This is a well-scoped job with a working product, an existing backend, and clear deliverables. You are not figuring out what to build, you are converting something that already works into a IOS App. TECH STACK • React Native (bare or Expo — justify your choice) • Gesture-based card UI using industry-standard React Native animation libraries • Calls an existing backend API that returns AI-generated college matches • Source code available on GitHub upon signing NDA • Target: iOS 16+ | Must be built with latest Xcode and iOS SDK TO APPLY YOU MUST INCLUDE: 1. One live App Store links to React Native apps you have shipped 2. Confirmation you are running Xcode 26 3. Two sentences on how you would implement the drag-to-zone card gesture. Applications missing any of the three will not be reviewed. Looking for one developer who has shipped gesture-heavy iOS apps and knows App Store submission from experience.

Posted last week
  • Hourly: $50.00 - $125.00
  • Expert
  • Est. time: 1 to 3 months, 30+ hrs/week

Senior React Native Engineer — Take Over & Launch a Consumer Social App We're looking for a senior React Native engineer to take ownership of an existing, fully-built consumer social media app and get it to App Store launch quality. The app already works. A previous developer built it end to end, and we have a complete, functioning codebase. What we need now is an experienced engineer to take the wheel, harden it, and ship it: tighten the design, fix the speed, clean up the backend, eliminate bugs, and make every feature work exactly as intended. This is a polish-and-launch role, not a build-from-scratch role, so we want someone genuinely strong at improving an existing codebase rather than rewriting it. This is a video-first social product — an infinite media feed, video upload and playback, user profiles, direct messaging, notifications, and engagement/retention mechanics. Think of the surface area of a modern social app, and our bar is that it should feel as smooth and fast as the top social apps on the store. Right now it's close, and we need someone to take it the last mile. What you'll own Performance & smoothness — profile and fix slow screens, janky scrolling, slow cold starts, memory issues, and re-render problems. Feed and video playback in particular must be flawless. Design polish — tighten spacing, animations, transitions, and component consistency so the UI looks and feels professionally finished. Backend cleanup — review and improve the backend: data models, queries, API/edge functions, security rules, storage, and the media pipeline. Efficient, reliable, and ready for real users. Bug elimination — hunt down and fix every bug; deliver a stable, well-tested app. Feature completeness — make sure all existing features work as envisioned, end to end, with proper edge-case and error handling. App Store launch — get it through Apple App Store review: build config, signing, App Store Connect, privacy/permissions, store technical requirements. (Android is a likely follow-on.) The stack you'll be working in Frontend: Expo + React Native + TypeScript, Expo Router (Reanimated and EAS Build/Submit a plus) Backend: a managed cloud backend with Postgres, authentication, file/object storage, realtime subscriptions, and row-level security (BaaS-style; comfortable with SQL, policies, and serverless/edge functions) Video: a managed video pipeline for direct uploads, transcoding, and adaptive HLS streaming, plus object storage and CDN delivery Notifications: push notifications (OneSignal or similar) Payments: Stripe integration experience is a plus Native device APIs: comfort with camera, media library, background tasks, location, and notifications; able to write/maintain native modules when needed Tooling: Git, EAS, environment management, basic CI/CD, crash/error monitoring (e.g., Sentry) Must-haves 4+ years building production React Native apps, with shipped App Store apps you can show us Deep, demonstrable experience profiling and optimizing React Native performance (list/image/video tuning, memoization, startup and bundle optimization) Strong with a Postgres / BaaS-style backend (schema design, SQL, security rules, serverless functions) Real experience with video upload and playback Have taken an app through Apple App Store review to a live release Excellent written English, proactive communication, and comfort owning a codebase someone else wrote Nice-to-haves Realtime/social feed and messaging at scale, Reanimated/gesture-heavy UI, Stripe or marketplace payment flows, crash analytics and feature flags, and prior experience launching a consumer/social app. How we work Small, fast-moving founding team with direct access to the founder and quick decisions. We'll start with a short paid trial task so we can both confirm fit before committing to ongoing work; strong performers move into an ongoing, long-term engagement. Some overlap with US Central time is required. An NDA is required before code access. To apply, please include: Links to 1–3 App Store apps you've built and your exact role on each A time you made an existing React Native app dramatically faster or smoother — what was slow, what you did, and the measured result Your experience with video upload/playback and with a Postgres/BaaS backend Your weekly availability and your US-Central overlap Start your reply with the word "SMOOTH" so we know you read this. Generic proposals will be ignored.

  • Fixed price
  • Entry Level
  • Est. budget: $450.00

**React Native Expo Developer Needed to Finalize and Deploy Mobile App** We have a mobile app that is nearly ready for launch, and we are looking for an experienced React Native Expo developer to help close out the final development items, test the app, and deploy it to both the Apple App Store and Google Play Store. The app is built with **React Native Expo**, **Appwrite BaaS**, and **Firebase push notifications**. **Scope of Work** We need help with the following: 1. **Final testing and implementation support for key features** * Push notifications using Firebase * OAuth2 login and sign-up flow * Address autocomplete using the Google Places / Google Maps API 2. **Mobile app testing, verification, and validation** * Test the app on both iOS and Android * Identify and fix bugs or deployment blockers * Verify that authentication, notifications, and location/address features work correctly * Ensure the app is stable and ready for production release 3. **App Store and Play Store deployment** * Prepare the app for production builds * Help configure required store settings * Submit the app to the Apple App Store and Google Play Store * Resolve any issues that come up during the submission or review process **Ideal Candidate** The ideal candidate should have experience with: * React Native and Expo * Appwrite backend services * Firebase Cloud Messaging / push notifications * OAuth2 authentication flows * Google Places or Google Maps APIs * iOS and Android deployment * Apple Developer Console and Google Play Console * Debugging production build issues We are looking for someone who can move efficiently, communicate clearly, and help us get the app fully launched.

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