- Hourly
- Expert
- Est. time: 1 to 3 months, Less than 30 hrs/week
Job Description: We are seeking a highly experienced developer to convert a completed Figma design into a production-ready web application that can be embedded via iframe. This is an insurance quoting platform with a multi-step user flow, so performance, reliability, and clean architecture are critical. The application must support a seamless end-to-end experience from quote intake through binding and confirmation. This is a fast-turn, high-priority project with a strict 7-day deadline. Technical Scope: Convert Figma designs into a responsive, pixel-perfect front-end Build a modular, responsive, scalable front-end architecture Develop backend to call APIs to support quoting workflow Implement multi-step form flow with validation, state management, and error handling Enable iframe embedding with proper handling of: Responsive resizing within iframe PostMessage communication (if needed) Optimize performance (fast load times, minimal bundle size) Deploy to production Core Functionality Requirements: Multi-step quote intake form Data capture + storage (database or structured backend) Quote summary / confirmation page Ability to expand into bind + payment flow (if not fully implemented, structure should support it) Admin/back-end access to view submitted quotes (light dashboard or database access is acceptable) Technical Requirements: Strong experience with React / Next.js (or similar modern framework) Backend/API development experience (Node.js, Express, serverless functions, etc.) Experience building embedded applications (iframe environments) Understanding of CORS, security best practices, and session handling Experience with form-heavy applications and user workflow optimization Ability to structure code for scalability and future API integrations Nice to Have: Experience with insurance, fintech, or quoting systems Experience integrating third-party APIs (rating engines, payments, CRM) Project Details: Timeline: 7 days (strict, non-negotiable) Start: Immediate Budget: Flat fee – please include total cost in your proposal Communication & Process: Daily progress updates required Ability to collaborate quickly and make real-time adjustments Clear documentation and clean code expected Next Steps / Application Requirements: Please include the following in your proposal: Relevant project examples (especially embedded apps or iframe-based tools) Your proposed flat fee Confirmation you can meet the 7-day deadline Your availability over the next 7 days We would like to get on a call to discuss the project immediately upon reviewing your proposal.
- Hourly
- Expert
- Est. time: 1 to 3 months, Not sure
Full-Stack Developer Needed to Migrate Replit Calibration Lab App to Local Server Environment Project Overview We have a custom Calibration Laboratory Management application that was developed on Replit and is currently functional. We are seeking an experienced software developer to migrate the application from the Replit environment to a locally hosted solution that can run on our company computers and servers. The goal is to create a stable, secure, and maintainable deployment that operates within our organization's network while preserving all existing functionality. Responsibilities Review and assess the existing Replit codebase Migrate the application to a local/on-premises environment Configure and deploy the application on Windows or Linux servers Migrate and configure the database (if applicable) Set up user authentication and security best practices Create installation and deployment documentation Provide recommendations for long-term maintenance and scalability Assist with testing and troubleshooting during deployment Required Skills Full-stack software development Experience with Replit migrations Node.js, React, Python, or similar web application frameworks Database administration and migration Windows Server and/or Linux server deployment Networking and local server configuration Docker experience (preferred) Git/GitHub version control Deliverables Fully functioning local version of the application Configured database and server environment Deployment documentation Backup and recovery recommendations Source code repository with all changes
- Hourly
- Intermediate
- Est. time: 1 to 3 months, Less than 30 hrs/week
Full-Stack Developer Needed to Build Production-Ready Budget-Focused Meal Planning Web Application Project Overview I am building a consumer web application focused on helping users create affordable meal plans and shopping lists while staying within a grocery budget. The project has progressed beyond the concept stage and currently includes: * Validated prototype * Product requirements documentation * GitHub repository * Supabase environment * Frontend application foundation I am seeking an experienced full-stack developer to help transform the existing foundation into a production-ready MVP. This is a contract opportunity with potential for future work following a successful launch. Scope of Work The selected developer will help: * Review and improve the existing codebase * Implement production-ready frontend and backend functionality * Design and optimize database relationships * Build user authentication and account management * Implement core application workflows * Prepare the application for deployment * Create maintainable technical documentation Technology Stack Current environment includes: * React-based frontend * Supabase * PostgreSQL * GitHub * Modern web application architecture Developers may recommend improvements if justified. Required Experience Required: * Full-stack web application development * React * JavaScript / TypeScript * Node.js * PostgreSQL * REST API integration * GitHub workflow experience Preferred: * Supabase experience * AI-powered application experience * Startup MVP experience * Experience improving existing applications Deliverables * Production-ready MVP * Clean and maintainable code * User authentication * Core application functionality * Deployment support * Technical documentation Timeline Target MVP completion: 6–10 weeks NDA & Ownership A standard NDA and work-for-hire agreement will be required prior to sharing detailed specifications and prior to project start. All work product, code, documentation, and intellectual property created as part of this engagement will be owned by the client. Budget & Proposal Requirements As an early-stage startup founder, I am operating with a limited development budget and am looking for the most cost-effective path to launch. When submitting a proposal, please include: 1. Estimated total project cost 2. Estimated timeline 3. Recommended development approach 4. Opportunities to reduce development cost while maintaining quality 5. Which items you would prioritize for Version 1 6. Which items you would recommend postponing until a later release Please provide specific recommendations rather than generic proposals. To Apply Please include: 1. Links to relevant projects 2. Experience with React and Supabase 3. Experience building consumer-facing web applications 4. Experience productionizing prototypes or existing applications 5. Your answer to the following question: "If this were your own startup and your own money, how would you build the MVP as cost-effectively as possible?" Please begin your proposal with the word "StretchBites" so I know you have read the entire posting.
- 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.
- Hourly
- Intermediate
- Est. time: 1 to 3 months, Less than 30 hrs/week
Are you an experienced web developer who loves building applications, enjoys mentoring, and is excited about leveraging AI to code faster? I am looking for a sharp, collaborative technical partner to work with me live over Zoom to build out various web applications. A core part of our workflow will involve utilizing Claude (and other AI tools) to brainstorm, scaffold, and accelerate our development process. Instead of working in isolation, you will be partnering with me in real-time to solve problems, review code, architect solutions, and push projects across the finish line. What You’ll Do Live Pair Programming: Join scheduled Zoom calls to actively write, debug, and review code together. AI Collaboration: Work alongside me to prompt, refine, and implement code generated by Claude to speed up the development lifecycle. Web Application Development: Help build, test, and deploy functional, clean web applications from scratch or improve existing codebases. Architectural Guidance: Offer advice on best practices, database design, and framework selection based on project needs. What I’m Looking For Strong Technical Foundations: Proficiency in modern web development frameworks and languages (e.g., JavaScript/TypeScript, React, Node.js, Python, or similar modern stacks). AI-Fluent: You don't just know how to code; you know how to use AI tools like Claude efficiently to debug, generate ideas, and optimize workflows. Excellent Communication & Patience: Since we will be working live on Zoom, you must be a clear communicator who enjoys explaining technical concepts and brainstorming out loud. Problem Solver: A knack for breaking down complex feature requests into manageable, step-by-step development tasks.
- Hourly: $70.00 - $90.00
- Expert
- Est. time: More than 6 months, 30+ hrs/week
We are a fast-growing telecom / AI-First CPaaS serving sms and voice API's. We are building the first AI-first communications platform (SMS, Voice, RCS, AI agents) designed for speed, simplicity, and real-world business outcomes. We are not looking for a “task completer.” We are looking for a true senior engineer who: thinks in systems moves fast makes decisions independently writes clean, scalable code uses AI tools (Claude, etc.) as a force multiplier ⚠️ Read This First Most applicants will not be a fit. If you need: detailed tickets hand-holding constant direction This is NOT the role for you. If you are the type of engineer who: sees a problem and solves it end-to-end improves architecture without being asked ships quickly without sacrificing quality You will thrive here. What You’ll Do Build and ship full-stack features across our platform (messaging, voice, AI workflows) Make architectural decisions (not just implement) Improve system performance, reliability, and scalability Work directly with founders (no PM layers) Move from idea → production very quickly What We Expect (Non-Negotiable) 5+ years real full-stack experience (not just titles) Strong backend experience (Node.js / APIs / infra) Strong frontend experience (React or similar) Experience building production systems at scale Ability to work autonomously with minimal direction High ownership mentality Bonus (but highly valuable) Experience with telecom / CPaaS / messaging Experience with AI integrations (LLMs, agents, workflows) Experience optimizing performance at scale Startup experience (especially early-stage or fast growth) How We Work Small, high-output team Very fast iteration cycles No unnecessary meetings High trust, high expectations We use AI tools heavily (Claude, etc.) — you should too What We Care About Most Not your resume. We care about: How you think How you build How fast you execute The quality of your code To Apply Please include: Links to projects you’ve built (real production work) A short explanation of: a system you designed end-to-end a difficult technical decision you made independently Your GitHub Optional (but strong signal): Share how you use AI (Claude, etc.) in your workflow Compensation Competitive (based on experience) Long-term opportunity with a fast-growing, profitable company If you are truly senior, this will feel obvious. If not, this role will be very uncomfortable.
- Hourly: $8.00 - $10.00
- Expert
- Est. time: 1 to 3 months, 30+ hrs/week
Rate: $10/hr | 40 hrs/week | Long-term contract Job Success Score: 90% minimum required Individual developers only — no agencies ⚠️ This is NOT a greenfield build. The app already exists and is in active development. We are looking for a strong, senior React Native developer who can take ownership, write clean production-ready code, and help us get to launch without endless back and forth on PRs. ⛔ No major refactors ⛔ No new features unless explicitly approved ⛔ No “I rewrote everything” approaches About GoShopBlack: GoShopBlack is a marketplace mobile app that connects users with Black-owned businesses. The app is built in React Native with a Supabase backend and has draft builds on both Google Play and the Apple App Store. I do regular code reviews via GitHub and expect PRs to be tested, clean, and production-ready before submission. This is a serious long-term role — not a one-off project. Hours can increase for the right developer. What You'll Be Working On: - Ongoing React Native development for iOS & Android - Search and filter system by location, category, and business type - Google Maps API integration (not yet built — this is a key upcoming feature) - Business profiles (hours, contact info, website links, reviews) - Customer ratings and review system - Business submission and admin approval flow - E-commerce integration for businesses that sell online - Social login (Facebook & Gmail) plus email/password auth - Phase 2: push notifications, in-app messaging, ad integration, AI recommendations What I'm Looking For: - Senior-level React Native experience — you must show me apps you have shipped to the App Store and Google Play - Strong Supabase experience — this is our backend, no Firebase or AWS - Google Maps API integration experience - GitHub proficiency — include your GitHub profile in your proposal - Job Success Score of 90% or higher - Clean, well-structured code with no demo or test code in PRs - Someone who self-tests thoroughly and does full end-to-end testing before submitting a PR - Strong communicator who gives daily updates and flags issues early - Weekly proof of progress required (Git commits, test builds, or screen recordings) - Must be comfortable with Hubstaff time tracking from day one - Must be willing to sign an NDA and contract before starting Deliverables • Business profiles with operating hours, contact info, links, and gallery • Google Maps API integration for directions • Customer rating & review system • Business submission (enable businesses to submit details for approval) • UI/UX polish: clean, modern, mobile-optimized interface • App Store deployment: finalize builds & publish to Google Play & Apple App Store • • Future Enhancements (Phase 2 – Optional): • Membership/subscription for premium business listings • Push notifications for promotions and new listings • In-app messaging/chat • In-app transactions for e-commerce listings • AI-powered recommendations • Social/community features • • Requirements: • Fluent in English (speaking & writing) • Proven experience in Flutter (React Native also considered) • Backend experience with Supabase / Firebase / Node.js • Strong Google Maps API integration experience • Experience publishing apps on Google Play & Apple App Store • Strong UI/UX design sense • Ability to provide weekly proof of progress (commits, test builds, or demos) • Willingness to sign an NDA and contract • • How to Apply: • Please start your proposal with the word Love (to confirm you read the full post). • • Include: • Examples of previous apps you’ve developed (especially directories, e-commerce, or review systems) • A short outline of how you would approach reviewing and completing this project. • • Confirmation that you can commit to $1,600/month on weekly milestones.
- Hourly: $30.00 - $50.00
- Intermediate
- Est. time: 1 to 3 months, Less than 30 hrs/week
Need one developer to build the first release of a site where people search events, pick tickets on a seat map, pay by card, and receive order confirmation. A small admin area is needed to update homepage content, categories, and basic site options. MVP includes - Event listing with search and filters - Event pages and ticket / seat selection - Cart and checkout with a payment provider - User sign-in and simple account flow - Connection to an external ticket supplier API (we provide access and documentation) - Basic back office for content and settings Stack React/Next, TypeScript, Tailwind. Node API. Auth/database. Card payments. Third-party inventory and seat-map tools. Apply with - One similar project (payments + external API) - Your rate and weekly availability - Realistic timeline for the MVP
- Hourly: $60.00 - $75.00
- Expert
- Est. time: 1 to 3 months, Less than 30 hrs/week
Job Description Summary We're looking for a senior full stack JavaScript / TypeScript engineer to join an active client engagement immediately. The work centers on taking a Chrome Extension from MVP to production, alongside a companion SaaS application used by the team managing the extension. General information This engagement is part of a larger product build for one of our clients. An MVP of the Chrome Extension has already been developed, and the focus now shifts to building, hardening, scaling, and shipping a production-ready release. The SaaS application serves the internal team that manages and operates the extension, and will be built in parallel. You'll be joining an existing engineering team with a project manager already in place. The role requires someone who can orient quickly in an active codebase, collaborate closely with teammates, and interface with project stakeholders when needed. Work is coordinated through Jira, and the team communicates via Slack and Zoom. You'll be onboarded with a Microsoft account that provides SSO access to the tools and systems you need from day one. Development work is performed by connecting to a secure dev workspace directly from your local IDE. Tasks and Deliverables - Take the Chrome Extension from MVP to a stable, production-ready release. - Contribute to the development of a companion SaaS application for the client's internal team. - Integrate into the existing engineering team and align with the project manager on priorities and delivery. - Engage with project stakeholders directly as needed throughout the engagement. - Maintain code quality, documentation, and engineering standards appropriate for a production product. Required experience - Senior-level full stack JavaScript and TypeScript experience. - Demonstrated experience building and shipping Chrome Extensions. - Strong front-end engineering skills, including a modern framework such as React. - Solid back-end experience with Node.js and REST API development. - Proven ability to onboard into an existing codebase and contribute without a long ramp-up period. - Experience working within a structured engagement — alongside a PM, an existing team, and external stakeholders. - Familiarity with Jira for task tracking and project coordination. - Excellent English communication skills; US-based or US timezone required. - Availability during standard US business hours, Monday through Friday. Nice to have: - Experience with SaaS architecture, including multi-tenant application patterns. - Familiarity with Chrome Extension APIs including content scripts, background service workers, and the Chrome storage API. - Background working in agency or client-services environments. Engagement highlights - Step into an active, well-scoped project with established project management and a clear path to production. - Work across two connected workstreams — a Chrome Extension and a SaaS platform — with room to take meaningful ownership. - Join an engaged team with strong client-side collaboration and defined stakeholder involvement. Additional information All candidates selected for engagement are subject to a standard background check prior to onboarding.
- Fixed price
- Expert
- Est. budget: $10,000.00
We are a fast-growing telecom / AI-First CPaaS serving sms and voice API's. We are building the first AI-first communications platform (SMS, Voice, RCS, AI agents) designed for speed, simplicity, and real-world business outcomes. We are not looking for a “task completer.” We are looking for a true senior engineer who: thinks in systems moves fast makes decisions independently writes clean, scalable code uses AI tools (Claude, etc.) as a force multiplier ⚠️ Read This First *DO NOT APPLY IF YOU ARE PRETENDING TO BE IN A DIFFERENT COUNTRY. PROOF OF RESIDENCY IS REQUIRED. Most applicants will not be a fit. If you need: detailed tickets hand-holding constant direction This is NOT the role for you. If you are the type of engineer who: sees a problem and solves it end-to-end improves architecture without being asked ships quickly without sacrificing quality You will thrive here. What You’ll Do Build and ship full-stack features across our platform (messaging, voice, AI workflows) Make architectural decisions (not just implement) Improve system performance, reliability, and scalability Work directly with founders (no PM layers) Move from idea → production very quickly What We Expect (Non-Negotiable) 5+ years real full-stack experience (not just titles) Strong backend experience (Node.js / APIs / infra) Strong frontend experience (React or similar) Experience building production systems at scale Ability to work autonomously with minimal direction High ownership mentality Bonus (but highly valuable) Experience with telecom / CPaaS / messaging Experience with AI integrations (LLMs, agents, workflows) Experience optimizing performance at scale Startup experience (especially early-stage or fast growth) How We Work Small, high-output team Very fast iteration cycles No unnecessary meetings High trust, high expectations We use AI tools heavily (Claude, etc.) — you should too What We Care About Most Not your resume. We care about: How you think How you build How fast you execute The quality of your code To Apply Please include: Links to projects you’ve built (real production work) A short explanation of: a system you designed end-to-end a difficult technical decision you made independently Your GitHub Optional (but strong signal): Share how you use AI (Claude, etc.) in your workflow Compensation Competitive (based on experience) Long-term opportunity with a fast-growing, profitable company If you are truly senior, this will feel obvious. If not, this role will be very uncomfortable. **THIS IS A FT, HOURLY ROLE. PROVIDE YOUR REQUESTED HOURLY RATE IN PROPOSAL**