Experience level filter
Job type filter
Client history filter
Project length filter
Hours per week filter
Posted last week
  • Hourly: $43.00 - $70.00
  • Intermediate
  • Est. time: 1 to 3 months, Less than 30 hrs/week

Looking for a web developer to help build a website for an upcoming legal app.

  • 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
  • Intermediate
  • Est. budget: $12,000.00

We are looking for an experienced full-stack software engineering team to help architect and build the MVP for a workflow-driven SaaS platform. This is an early-stage startup project with long-term growth potential. We are intentionally keeping the business concept high-level during the initial screening phase and will provide additional details after NDA and qualification discussions. The platform will involve: * Multi-step workflows * User accounts and permissions * Dynamic forms and guided processes * Document management and storage * Dashboard interfaces * Mobile and web support * Notification systems * Payment integration * Audit/history tracking * API integrations * Scalable backend architecture * Future AI/data integration capabilities We are looking for a team that can help: 1. Build the MVP foundation correctly 2. Establish scalable engineering standards 3. Recommend best practices for long-term growth 4. Create a maintainable and scalable architecture from day one? Preferred Stack: * Frontend Web: Next.js * Mobile: React Native + Expo * Backend: NestJS * Database: PostgreSQL * Language: TypeScript We are open to recommendations if there is a strong technical reason for an alternative approach. MVP Goals: * Secure user authentication * Role-based access control * Guided workflow engine * Dashboard UI * File/document upload system * Backend API architecture * Database schema design * Mobile ready architecture * Admin portal * Activity logging/history * Notification system * Payment processing integration * Scalable folder/repository structure * Shared codebase strategy where appropriate * Documentation and handoff standards We’re looking for: * Strong system architecture experience * SaaS platform experience * Experience designing scalable backends * Experience building both web and mobile products * Strong communication * Ability to think through workflows and edge cases * Someone who can challenge assumptions and improve the product technically * Experience working in fast-moving startup environments Nice to Have: * Experience with workflow engines * Experience with compliance-heavy systems * Experience with document automation * Experience with AI integrations * Experience with data aggregation systems * DevOps/cloud deployment experience Please include: * Relevant SaaS projects * Your recommended stack and why * Experience with scalable systems * Whether you recommend monorepo architecture * Experience with React Native + Next.js shared codebases * Estimated MVP timeline * Team structure (if applicable) * Your preferred development workflow/process Bonus if you can explain complex technical decisions in simple business terms.

  • Hourly: $60.00 - $65.00
  • Expert
  • Est. time: 3 to 6 months, 30+ hrs/week

Looking for an experienced Webflow developer in the states who has good communication skills, can write code to power components, and can build sites with modular components with grouped component properties (like Lumos). In order to be considered, please share a screenshot or Loom of how you build with components. It should take you just 1 minute!

  • Fixed price
  • Expert
  • Est. budget: $800.00

UI/UX Design & Website Development for Premium Brand Platform We are looking for a skilled designer + developer to continue the next phase of an existing brand project. The logo and initial branding have already been completed successfully — now we want to build the full UI/UX and develop the website/platform based on the approved brand identity. This is not a template-only project. We are looking for someone who understands both modern UI/UX and clean scalable development. Project Scope UI/UX Design Create a premium, modern, and conversion-focused UI/UX Design responsive desktop and mobile layouts Improve user journey and visual hierarchy Create reusable components and consistent design system Development Develop the approved UI into a fully functional responsive website Clean, scalable, and optimized code Fast-loading and SEO-friendly structure CMS or admin-friendly setup if needed Cross-browser compatibility Final deployment and launch support Pages / Sections Homepage About Services / Products Contact Landing pages (if needed) Dashboard or custom pages (if applicable) Design Direction We want: Premium modern aesthetics Clean minimal layouts SaaS / startup inspired UI Strong branding consistency Conversion-focused sections and CTA placement Mobile-first responsive experience Preferred Skills Figma / UIUX expertise WordPress / Shopify / Webflow / Custom development experience HTML, CSS, JavaScript Strong frontend development skills Performance optimization and responsive development SEO best practices Deliverables Full UI/UX design files Responsive website development Reusable component system Editable source files Final deployment support Budget Fixed Budget: $800 Timeline 2–4 weeks preferred To Apply Please share: Relevant UI/UX + development portfolio Similar projects completed Your preferred tech stack Estimated timeline Brief approach for the project

  • Fixed price
  • Expert
  • Est. budget: $15,000.00

We are seeking an elite, senior-level Full-Stack Developerto engineer a high-velocity, real-time horse racing web platform from the ground up. The core application loop revolves around a fast-paced snake draft for individual horse races, complete with an integrated, synchronized sub-second live video stream of the race. Following official track results, the platform automatically executes structured financial payouts to users using Venmo/PayPal Payout rails. The entire tech stack must be built utilizing a unified all-JavaScript environment (MERN stack) optimized to eliminate database race conditions and handle volatile real-time traffic spikes. Core Key Milestones & Project Deliverables: Milestone 1: Backend Infrastructure & User Security (15%) Set up a Node.js/Express.js application environment and establish a scalable MongoDB Atlas architecture. Implement user registration, secure JWT/bcrypt authentication, profile management, and verified phone-number registration and/or email registration. Milestone 2: Sports Data Ingestion & Automation (25%) Establish integration with a third-party commercial horse racing API (e.g., Equibase or Sportradar). Build persistent background workers (using BullMQ, Redis, or Node-Cron) to automatically ingest daily race cards, scratches, gate changes, and final official race metrics. Milestone 3: Real-Time Draft & WebRTC Video Integration (40%) Develop an interactive React.js draft dashboard utilizing Socket.io for live, synchronized state management. Implement our custom mathematical snake draft logic featuring a strict 20-second user-pick countdown timer. Build server-side automatic timeout handlers to auto-assign choices if a user disconnects or freezes. Embed an ultra-low latency HTML5 video canvas layer leveraging WebRTC (via WHIP/WHEP protocols) to ingest an RTMP stream from a media server (e.g., Ant Media or Wowza) ensuring sub-500ms video playback. Milestone 4: Venmo Payout Integration & Compliance Guardrails (20%) Seamlessly integrate the official PayPal/Venmo Payouts API to programmatically distribute money from our platform wallet directly to users' accounts and/or phone numbers. This can be worked around using a p2p format, if necessary due to compliance and regulation. Code a reliable system ledger that deducts a custom platform percentage rake prior to finalizing winner distributions. Implement an IP geo-fencing gateway (such as MaxMind GeoIP2) to block real-money contest entry from illegal jurisdictions. Technical Stack Requirements: Frontend: React.js (Next.js preferred), Tailwind CSS, Socket.io-client. Backend: Node.js, Express.js, Socket.io, Node-Cron or BullMQ.Database & Memory: MongoDB (Mongoose), Redis (for lightning-fast leaderboard and timer caching). Streaming Protocols: WebRTC, WHIP/WHEP, RTMP stream handling. Integrations: PayPal/Venmo Payouts SDK, REST/JSON Sports Data APIs, GeoIP lookup utilities. Strict Operational Code Quality Terms: 1. Repository Ownership: All codebase code and architectural modules must be pushed to our private company GitHub repository at least three times a week. Milestone releases will only be approved after clean local compilation and inspection. 2. IP Assignment: By applying for and accepting this position, you acknowledge that 100% of the developed application logic, system schemas, and code components represent a dedicated Work-for-Hire owned exclusively by the client. 3. ACID Database Transactions: You must guarantee and demonstrate via unit testing that the MongoDB schema handles marketplace swaps and concurrent drafting selections via absolute ACID Transaction Sessions to totally prevent double-spend or double-draft race conditions. To Apply, Please Answer the Following 3 Screening Questions: 1. How do you plan to structure the server environment and React architecture to keep a 30-second live countdown timer perfectly synced down to the millisecond for 4 or more different players concurrently browsing via WebSockets? 2. Please share a summary or a live link of a project you built from scratch that handled live WebRTC ultra-low-latency video delivery or complex stream handshakes. 3. What is your specific experience with financial ledger architectures? Explain how you intend to protect the MongoDB operations against multi-user transactional conflicts.

  • Fixed price
  • Expert
  • Est. budget: $350.00

Developer needed to launch a family organizer app (backend + accounts) Short version I’ve already built a working prototype of a family management app. It looks and behaves the way I want. What it can’t do yet is the “behind the scenes” part: save information in one shared place so every family member sees the same thing on their own phone, let each person log in, and send reminder notifications. I need a developer to build that part and get the app live so my family can actually use it on our phones. One thing that matters a lot to me, please read carefully: after you finish, I need to be able to keep changing and improving the app myself, working with an AI assistant — without having to hire or contact anyone again. So everything you build has to be handed over to me completely, written cleanly and simply, and explained well enough that an AI assistant can understand it and help me make future edits. No locked-down systems, no “only I can touch this” setups, no surprise dependencies. I own all of it. What the app is It’s a private organizer for my household (two parents, six kids). It has five sections: • Today — a daily summary for each person (their schedule, their tasks, family meal/afternoon plans). • Schedule — a weekly calendar: who’s driving which kid to which school, each parent’s work day and hours, kids’ activities, meal and afternoon plans. • Chores — daily and weekly tasks you can assign to specific people, and check off when done. • Lists — grocery and supply lists. • Tonight — an evening summary of chores that still aren’t finished. The look, layout, colors, and how everything behaves are already done. I’m not asking you to design anything. I’m asking you to make it real and shared. What I need you to build 1. One shared place to store our information (the part it’s missing most). Right now, anything I type only saves on the device I typed it on. My wife’s phone and the kids’ devices don’t see it. I need all our information kept in one shared online location so that when anyone makes a change, everyone else’s device updates too, within a few seconds. 2. A login for each family member. Simple and family-friendly: you open the app, tap your name from a list, and type a PIN. Once you’ve logged in on your own phone, it should keep you logged in so you don’t have to do it every time. Every person — both parents and all six kids — gets their own login. Parents can edit everything; kids mainly see their own stuff and check off their own chores. The app already has a built-in “who’s using this” concept; your login system just needs to drive it for real. 3. Notifications to people’s phones. • Every morning, each person gets a notification with their summary for the day. • Every evening at 8:00 PM, each person gets a reminder of any chores they haven’t finished that day. The app already knows exactly what each of those messages should say — I just need them actually delivered to phones on schedule. 4. Shared photo proof for kids’ chores. When a kid marks a chore done, the app already makes them take a photo as proof. Right now that photo is stuck on the kid’s device. I need those photos saved in our shared location so my wife and I can see them from our own phones. What “done” looks like • My family can install or open the app on our phones and each log in with our name and PIN. • A change one person makes shows up on everyone else’s device. • Morning summaries and 8:00 PM chore reminders arrive as phone notifications. • Kids’ chore photos are visible to the parents on their own devices. • It runs reliably without me needing to babysit it. Very important: I need to be able to maintain it myself afterward I work on this app with an AI assistant, and I plan to keep improving it that way for a long time. So I’m asking that you: • Hand over everything — all the code, all the accounts and passwords, all the settings — in my name, owned by me. Nothing stays under your account. • Write it cleanly and simply. Please don’t over-complicate it or add tools and layers that aren’t truly needed. The simpler and more standard it is, the easier it is for me and an AI assistant to understand and change later. • Comment and document it in plain terms: what each part does, where things live, and how to make common changes (like adding a person, changing a notification time, or adjusting a list). • Write a short “how it works” guide for a non-developer — how to find things, how to change them safely, and how to undo a mistake. • Avoid lock-in. Use widely used, well-known building blocks (the kind an AI assistant will already understand), not anything obscure or proprietary that only you would know how to maintain. • Do a handoff call or video walking me through it so I’m comfortable taking it from there. If anything about how it’s built would make it hard for me to edit later on my own, please tell me up front. To apply, please tell me • A short note, in plain English, on how you’d approach this — especially how you’ll keep it simple and easy for me to maintain myself afterward. • Whether you’d build it so it works on iPhones and Android (and whether that’s a website-style app or an installable app — explain the trade-offs simply). • A rough estimate of cost and timeline. • One or two examples of similar things you’ve built. A few notes • This is a private app for my family only — not something I’m selling. It doesn’t need to handle thousands of users, just the eight of us. • Privacy matters: it includes my kids’ photos and our daily whereabouts, so it needs to be kept private and secure. • I already have the full working front end (the part you see and tap). I’ll share it with the right person. You’re building the engine behind it and getting it onto our phones.

  • Hourly: $70.00 - $85.00
  • Expert
  • Est. time: 1 to 3 months, Less than 30 hrs/week

We are looking for a highly experienced senior full-stack developer to take over and continue building an existing custom web platform. This is a takeover + completion role, not a ground-up build. We need someone who can understand a complex system quickly, interpret product vision accurately, and deliver fully functional features the first time with minimal back-and-forth. About the role We are building a multi-user digital platform ecosystem with: role-based user dashboards content and discovery systems saved content / collections functionality marketplace-style interactions between users search and filtering systems structured user profiles and matching logic A significant portion of the platform is already built. The current challenge is not design — it is true functionality, system completion, and reliability. What you will do Take over an existing codebase from a previous developer Understand the full platform quickly without extensive hand-holding Identify what is incomplete, broken, or not functioning correctly Fix and complete core platform functionality Improve search, filtering, and marketplace discovery logic Ensure all features actually work end-to-end (not just UI) Double-check your own work before submission Build with stability, accuracy, and production readiness in mind Key focus areas Marketplace functionality between multiple user types Search and filtering system (accuracy + relevance are critical) Role-based dashboards and permissions User discovery / matching logic Content feed and engagement features Saved content / collections system Messaging or interaction systems between users Admin/owner control features Must-have experience We are ONLY looking for senior-level developers with proven experience in: Full-stack web application development Marketplace platforms OR multi-user systems Search / filtering / discovery systems Working inside existing codebases (not just building from scratch) Backend + frontend integration Database design and structured data systems Debugging and completing incomplete platforms Ideal candidate You are a strong fit if you: Can quickly understand large, complex platforms Have built or improved marketplaces, SaaS tools, or social platforms Think in systems and workflows, not just individual pages Take ownership of functionality (not just code delivery) Test and verify your own work before submitting Prefer fixing and improving over rebuilding from scratch Can translate non-technical vision into real working systems Important expectations This is NOT a simple website build This is NOT a design-focused project This is NOT a rebuild from scratch You must be comfortable inheriting existing work You must ensure features are fully functional before delivery Accuracy and reliability are more important than speed alone We are looking for someone who can own the functionality layer of a complex platform. Please include in your proposal Examples of marketplace, SaaS, or multi-user platforms you have built or improved Examples of projects where you inherited an existing codebase How you approach understanding a large unfamiliar system How you ensure your work is fully functional before delivery Your experience with search, filtering, or discovery systems Your availability for the next 4–6 weeks Bonus (strongly preferred) Experience improving search or ranking systems Experience with marketplace discovery flows Strong backend architecture experience Startup experience working under fast timelines Strong attention to detail and QA mindset

  • Hourly
  • Expert
  • Est. time: Less than 1 month, Less than 30 hrs/week

Overview I need an experienced Webflow developer to take a near-complete HTML mockup of a SaaS marketing homepage and turn it into a polished, production-ready Webflow page. The mockup is roughly 80% there — the structure, layout, and copy are solid. Your job is to close the gap: pixel-perfect execution, brand fidelity, and mobile responsiveness. Speed is critical. I need this live before an upcoming conference. What You'll Receive - A fully built HTML/CSS/JS mockup (the reference design) - Our brand style guide (colors, fonts, logo assets) - Brand colors: Navy #1B3F81, Blue #3B79C4, Light #EEF5FF / - - White #FFFFFF - Typography: Roboto (headings), Nunito Sans (body) - Logo files (full logo + logomark, in multiple formats) - Clear direction on what needs improvement vs. what to preserve What We Need - Rebuild the page in Webflow, faithful to the HTML mockup - Elevate the design where the mockup falls short — sharpen spacing, hierarchy, polish - Fully responsive (mobile, tablet, desktop) - Demo request CTA must be functional (we'll provide the form destination — likely a Typeform or embedded form) - Optimized for fast load - Clean Webflow CMS structure so we can update copy ourselves going forward Ideal Candidate - Strong Webflow portfolio with SaaS or B2B landing pages - Sharp design eye — you can take an 80% mockup to 100% Fast. This is not a 3-week project. I need a realistic turnaround of 5–7 business days or less - Responsive to communication. I need someone who moves quickly and flags blockers fast To Apply Include in your proposal: - Two or three Webflow projects you've built (live links preferred) - Your honest timeline estimate

  • Fixed price
  • Intermediate
  • Est. budget: $100.00

I'm looking for a freelancer to build a small web page where users can submit a recipe and browse recipes shared by others. Nothing complex — just a clean way to add and view recipes. Requirements: Mobile-friendly, works well on phones A submission form: recipe title + ingredients + short instructions + optional photo A page that displays all submitted recipes in a simple card layout Clean, simple, easy-to-read design Preferred stack: React (frontend) Node.js (backend) Any cloud storage for the photos Small project with a clear scope. Please share similar work, your estimated timeline, and your price.

Jobs Per Page: