- Hourly: $75.00 - $125.00
- Expert
- Est. time: More than 6 months, 30+ hrs/week
We're building a confidential, AI-native operating system for high-volume plaintiff-side litigation. This is not a generic legal chatbot. It's an operating system for litigation operations — and we already have a live law firm as the proving ground, a working visual prototype, a pitch deck, and a near-term demo deadline. We need a senior full-stack engineer who can take an existing prototype, schemas, prompts, and workflow package and turn it into a secure working demo, then a production-track MVP. The right person thinks like a product architect, engineer, and security operator at once — fast, but disciplined with confidential legal data. Required: React/Next.js, TypeScript, Node or Python/FastAPI, PostgreSQL, auth and role-based access control, OpenAI or comparable LLM APIs, structured JSON/schema outputs, secure file handling, PDF/export generation, GitHub workflows, and strong security discipline. Strong plus: Legaltech, plaintiff-side litigation, case management systems (Filevine, Litify, Clio, Salesforce, HighLevel), RAG/document extraction, audit logging, and SOC 2 / PII / regulated-data experience. Ground rules: NDA required. No public repos. No real client data in the demo — sanitized data only. No API keys in browser code. No external sharing or deployment without approval. First deliverable: A build-readiness report identifying what's mock, what's reusable, and what needs rebuilding, plus architecture, security risks, database plan, API integration path, and a 7–30 day build roadmap. The path: Paid 7-day build-readiness sprint → 30-day demo sprint → longer-term technical lead / founding engineer discussion. To apply, please include: A short note on why you're right for this project 2–3 relevant products you've built (links) GitHub or code samples, if available Your availability for a 7-day build-readiness sprint Your hourly rate, fixed sprint price, or contract-to-hire preference Remote acceptable. U.S.-based preferred; South Florida a plus.
- Fixed price
- Intermediate
- Est. budget: $5,000.00
Project Overview RAIC Labs, an AI company specializing in geospatial intelligence, search, and monitoring solutions for Department of Defense and Commercial customers, is seeking a skilled web designer/developer to create a full redesign of our corporate website. The goal is to communicate our mission, capabilities, and technical excellence through a visually striking, mission-driven, and highly professional digital presence. Project Objectives • Redesign the RAIC Labs website from the ground up (design, UX, and development). • Establish a high-impact, modern visual identity that reflects our position in AI-driven geospatial search and monitoring. • Communicate core offerings clearly to both defense (emphasis) and commercial audiences. • Create a structure that allows future content expansion (press, use cases, blogs, partners). • Ensure the site is fast, responsive, and optimized for modern browsers and devices. Deliverables • Full site UX and UI design (wireframes, mockups, final design). • Responsive front-end build and CMS integration (or static deployment if preferred). • Core pages (examples): Home, About, Capabilities, Defense/Commercial, Careers, Contact/Book a Demo. • Brand-aligned visuals and iconography. • Basic copy integration and image optimization. • Optional: CMS setup for internal content updates. Technical Preferences • Technologies: Webflow, Next.js, or another modern front-end stack. • Hosting: GitHub Pages, Vercel, or AWS preferred. • Performance targets: rapid loading on both desktop and mobile • Structure: desktop and mobile-optimized versions • SEO and analytics integration. Qualifications • 5+ years of experience in web design and development (agency, startup, or enterprise experience preferred). • Proficiency with modern web frameworks (e.g., React, Next.js, Webflow, or similar). • Strong understanding of UX/UI principles and responsive design. • Excellent communication skills, responsiveness and attention to detail. • Portfolio demonstrating complex, visually compelling web experiences. Design Inspiration Potential design references include websites for the following companies: • Planet Labs • Black Shark AI • Palantir • Janes Defense • Black Sky • Orbital Insight/Privateer Timeline Initial concepts within 2 weeks of project launch; final design and development within 6-8 weeks.
- Fixed price
- Intermediate
- Est. budget: $500.00
OVERVIEW I'm building Inkora, a subscription web app: an AI creative-writing companion for fiction (romance, fan fiction, poetry, general fiction). The React front-end is COMPLETE and will be provided, with clearly marked integration points. I need the backend built, connected, and the full app deployed. This is an 18+ platform with content safeguards. STACK ALREADY IN PLACE - React front-end (provided; single-file app ready to be scaffolded into a project) - GitHub (repo will live on my account) - Vercel (hosting, my account) - Stripe account created - Anthropic (Claude) API key — must live server-side only, never in client code - Domain: inkora.com SCOPE OF WORK 1. Secure AI endpoint — a serverless endpoint (e.g. POST /api/write) that attaches the provided system prompt, calls the Claude API with the server-side key, and returns the text to the front-end. Suggested writing model: claude-sonnet-4-6. 2. Content moderation — screen user input BEFORE the model call and model output AFTER it. Block sexually explicit content and gratuitous graphic gore. Use a inexpensive-model screen (e.g. Haiku) or a third-party moderation API. Log violations; support a warn-then-suspend flow. 3. Auth — your recommendation (Supabase or Firebase preferred). Email + password baseline; Google sign-in if low effort. 4. Database — persist each user's stories (title, genre, full message history, timestamps), characters, and notes. The front-end already models these data shapes. The story's full saved history must be sent with each AI request (this powers in-story continuity). 5. Subscriptions (Stripe) — $10/month, ~$27/quarter, ~$96/year. Free tier: 10 messages per day (make this a config value), resetting every 24h. Gate writing access by subscription status / remaining free allowance. Handle the subscription lifecycle via webhooks. 6. Age-gate persistence — the front-end collects date of birth + an 18+ affirmation; store the affirmation timestamp with the account. Structure it so a third-party age-verification provider can be swapped in later without reworking the flow. I'm open to building on a proven starter/template (e.g. the Vercel AI chatbot template) if it speeds things up — adapting solid existing code is welcome. DELIVERABLES - Deployed, working app (provided front-end + your backend) on my Vercel, repo on my GitHub - All secrets configured as environment variables (never in client code) - Short handoff notes: key rotation, where moderation logs live, how to change config values WHAT I PROVIDE - Complete front-end code, a written backend brief, and the system prompt (shared privately with the selected freelancer) - All accounts (GitHub, Vercel, Stripe, Anthropic) already created and ready TO APPLY, PLEASE ANSWER THESE IN YOUR PROPOSAL: 1. Have you wired Stripe subscriptions with webhooks before? Link or example. 2. How will you keep the API key off the client? 3. How would you implement input + output moderation cost-effectively? 4. Have you deployed serverless APIs on Vercel? 5. Your fixed quote and timeline for this scope. Proposals that don't answer these questions will not be considered.
- Fixed price
- Expert
- Est. budget: $1,000.00
The job in one sentence: Our agents take inbound sales calls in the browser via a Telnyx WebRTC softphone, and calls are dropping/failing . We need someone who has shipped production browser-telephony before to root-cause it, fix it, and make it provably reliable. Stack: Next.js 15 (App Router) + TypeScript, deployed on Vercel @telnyx/webrtc (browser SDK) for the softphone Telnyx TeXML voice app + SIP; calls originate from a third-party dialer (CallGrid, which is Twilio under the hood) → Telnyx → browser Postgres (Neon) + Drizzle ORM; Inngest for async/billing jobs Opus/G.722 codecs, getUserMedia, RTCPeerConnection What's actually broken (be honest with yourself about whether you can fix these): Inbound calls intermittently fail to bridge: ring → answer → dead air or immediate hangup WebRTC reconnect/registration churn (telnyx.error storms, overlapping registrations, websocket flap) getUserMedia / mic-device edge cases dropping calls silently First-few-seconds audio quality (APM/codec/jitter) on some calls We lack clean server-side observability into why a given call ended (SIP hangup cause/source, caller vs callee) Billing integrity tied to call lifecycle (bridged/duration/disposition) must stay correct
- Fixed price
- Expert
- Est. budget: $108,000.00
Founding Product Engineer Scottsdale, AZ (In Person Preferred) | Full-Time | $10,000/month Help Build the Future of Real Estate Real estate is one of the largest industries in the world, yet most brokerages still rely on disconnected software, spreadsheets, manual processes, and inconsistent coaching to develop their agents. We're changing that. PCx is building the operating system for real estate organizations: a single platform that brings together onboarding, training, coaching, performance management, business planning, accountability, AI, and leadership into one modern experience. Our mission is simple: Help brokerages develop better agents, faster, at scale. We've already invested heavily into building the platform and have an experienced overseas development team. We're now looking for a Founding Product Engineer to become our technical leader in Arizona, someone who can own the product, move quickly, make smart technical decisions, and help build a world-class software company. This isn't a corporate engineering job. This is an opportunity to help build something meaningful from the ground up. About the Role You'll work directly with the founder to translate product vision into exceptional software. You'll be expected to think like both an engineer and a product leader, understanding the business, improving the product, writing production code, reviewing architecture, and helping lead development across our engineering team. We're looking for someone who enjoys solving hard problems, moving fast, and taking ownership. Responsibilities * Lead development of our SaaS platform alongside an existing engineering team * Write high-quality production code across the full stack * Design scalable architecture and technical solutions * Review code and maintain engineering standards * Translate product ideas into technical implementation plans * Collaborate directly with the founder on product strategy and roadmap * Improve user experience through thoughtful product decisions * Build and integrate AI-powered features using modern LLM technologies * Help hire, mentor, and grow the engineering team over time * Continuously improve platform performance, scalability, and reliability Ideal Experience * Strong experience building modern SaaS applications * Expert with React, TypeScript, Node.js, and PostgreSQL * Experience designing scalable software architecture * Experience working with cloud infrastructure (AWS preferred) * Familiarity with AI technologies, OpenAI APIs, and LLM-powered applications * Startup experience or a desire to build in a fast-moving environment * Strong communication skills with the ability to explain technical decisions clearly * Willing to work from or relocate to Scottsdale, Arizona What Success Looks Like Within your first year, you'll become the technical leader behind a platform with the potential to transform how thousands of real estate professionals learn, grow, and build their businesses. As the company grows, this role's salary will grow proportionally, and quickly. If you're looking to move fast and make a meaningful change in both the real estate industry, and eventually other sales industries, lets talk.
- Hourly
- Intermediate
- Est. time: 1 to 3 months, Less than 30 hrs/week
We are seeking a US-based computer vision and full stack developer to build a platform for sports card recognition. The project includes developing subscription management, dashboards, and user account features. The ideal candidate will have experience creating scalable applications and integrating computer vision capabilities into a user-friendly platform. Hiring: Computer Vision + Full Stack Developer for Sports Card Live Auction Overlay App (SaaS) 📌 Overview I’ve built an MVP of a real-time sports trading card scanning and comping overlay tool using Loveable.dev. The product helps buyers gain an edge during live auctions by instantly identifying cards and showing real-time market comps. Now I’m looking for a U.S.-based developer (or strong US-aligned freelancer) to take this from MVP → production SaaS. This is a subscription-based product, so I need someone who can help build something fast, accurate, scalable, and hard to replicate. 🧠 What the product does Users can: Capture or upload sports trading card images during live auctions (mobile + desktop) Instantly identify: Player Year / set Parallel / serial number Pull live market comps Display a real-time “buy / avoid / fair price” overlay The goal is speed + accuracy in live buying situations (seconds matter). ⚙️ What I already have MVP built in Loveable.dev Basic overlay + UI flow Initial comp logic concept Subscription idea (not yet fully implemented) 🛠️ What I need help building (Phase 1 → Scale) I’m looking for someone to help rebuild and harden the system into a real SaaS product: 1. Computer Vision / OCR Layer Card detection from images (mobile + desktop) OCR extraction (player name, set, serial numbers) Image recognition / matching to known cards Confidence scoring (very important — must avoid wrong matches) 2. Comp Engine (Core Value) Integrate or build system for: eBay sold listings 130point or similar comp sources Card Ladder / ALT-style pricing logic Return: last sale average comp trend direction liquidity estimate 3. Real-Time Overlay System Lightweight overlay that works during live auctions Low latency (fast lookup is critical) Works on mobile + desktop workflows 4. SaaS Infrastructure User accounts + authentication Subscription billing (Stripe) Usage tracking / rate limiting Admin dashboard 5. Scaling / Production Hardening API architecture improvements Database structure Performance optimization for real-time use Error handling for imperfect images 💡 Ideal candidate You should have experience with: Computer vision (OpenCV, YOLO, or similar) OCR pipelines AI image classification or similarity matching Full-stack SaaS development Stripe subscriptions API design (Node.js / Python / Next.js preferred) Huge plus if you have: Sports card / collectibles knowledge Experience with marketplaces or scraping pricing data Real-time / low-latency systems 🎯 Why this is interesting This is not a generic app. It’s: A real-time decision engine for high-value collectibles Built for a passionate, high-spend niche (sports cards) Subscription-based with strong monetization potential Designed for speed advantage in live auctions 📍 Requirements Must be U.S.-based (preferred for communication/time zone alignment) Must be able to work independently Must have strong GitHub/code examples Bonus if you’ve built AI or vision-based SaaS tools before 💰 Budget Open to: Hourly or fixed project 📩 To apply, please include: Relevant CV / GitHub Past AI / computer vision projects Any SaaS or startup experience Your approach to building a real-time image → comp system Availability per week
- Hourly
- Expert
- Est. time: 1 to 3 months, Less than 30 hrs/week
I have a production-ready React/TypeScript health record web application built with Lovable (AI app builder) that needs to be migrated to professional infrastructure I own before public launch. I also need Claude Code (Anthropic's AI coding CLI) set up so I can continue building features independently after migration without relying on Lovable. This is a one-time migration project with a clear scope and a complete data export already prepared. I need someone experienced, detail-oriented, and trustworthy — this is a health application handling sensitive patient data. What I already have: Vercel Pro account — ready to connect Supabase account — ready to create new project GitHub repository — connected and available Domain: fullycharted.app — DNS access available Complete bulk export ZIP from Lovable Cloud — all tables as CSV/JSON, all storage files, complete supabase/migrations/ folder 2 beta users currently — minimal data to migrate Mac computer for local development setup The application: React/TypeScript frontend with Vite and TailwindCSS Supabase backend — PostgreSQL, Row Level Security, Edge Functions, Storage buckets Supabase Auth for authentication 1,326 automated tests passing Currently hosted on Lovable Cloud fullycharted.app currently points to a separate landing page — needs to point to the full app after migration What I need done: Connect GitHub to my Vercel account and configure build settings for Vite/React and all environment variables Create new Supabase project in my account — run supabase db push using migrations folder, import all table data from CSV/JSON export, re-upload all storage files (lab documents, imaging, diagnostic studies), verify all Row Level Security policies working correctly Configure all environment variables — VITE_SUPABASE_URL, VITE_SUPABASE_PUBLISHABLE_KEY, VITE_ADMIN_EMAIL, and any others currently in Lovable DNS configuration — point fullycharted.app to Vercel, configure www redirect, verify SSL certificate Handle 2 beta user accounts — coordinate password reset timing before DNS cutover Full verification — app loads at fullycharted.app, login works, patient data intact, emergency view works without auth, file uploads work, admin route gated correctly, all 1,326 automated tests pass, RLS verified (no cross-account data access) Claude Code setup on my Mac — install Node.js, install Claude Code CLI, clone repository locally, configure local environment variables, verify app runs locally (npm run dev) and tests pass (npm test), walk me through one simple change so I understand the workflow Documentation and handoff — all environment variables documented, Vercel and Supabase configuration documented, local development workflow documented, GitHub push triggers Vercel deployment confirmed Security requirements: This is a health application. RLS policies must be verified after migration. Patients must only access their own data. Admin route gated to one specific email. Public emergency routes work without exposing other patient data. What I will provide: Access to my Vercel account Access to my Supabase account Complete bulk export ZIP GitHub repository access Domain registrar access for DNS Anthropic API key for Claude Code Quick responses throughout the project Success looks like: fullycharted.app loads the full application Beta users can reset password and log in with all data intact All 1,326 tests passing I own all infrastructure completely Claude Code installed, configured, working Complete documentation in my hands Follow-on work: I have a second application (MySynapse — homeschool platform) on the same stack needing the same migration in 1-2 months. Strong performance here leads to that second project directly. To apply please include: Examples of similar Lovable/managed platform to Vercel migrations Supabase RLS and migration experience Your approach to data integrity verification Confirmation you are comfortable with health app security requirements
- Hourly
- Expert
- Est. time: 3 to 6 months, Not sure
JOB TITLE: Technical Advisor / Fractional CTO (Part-Time MVP Oversight) PROJECT TYPE: Mobile-First Progressive Web App (PWA) – TIME COMMITMENT: ~2 to 3 hours per week (Milestone-based review) DURATION: 4 to 5 Months (Duration of MVP build) COMPENSATION: [Flat Fee Monthly Retainer] ABOUT THE PROJECT We are launching a highly secure, niche online Progressive Web Application (PWA) tailored specifically for medical and healthcare professionals (Doctors, Nurses, EMTs, and Ancillary staff). The core features include a custom schedule/shift-matching query, a hybrid user-verification system (integrating the free US Federal NPI Registry API alongside manual photo badge uploads via Cloudinary), premium tier setups via Stripe Billing webhooks, and third-party chat infrastructure (CometChat/Sendbird). We are hiring an external software development agency to build the MVP. We require an independent, highly skilled Technical Advisor to represent our interests, audit deliverables, and ensure strict code quality. ROLE RESPONSIBILITIES: As our Fractional Technical Advisor, you will act as our "Technical Shield" during the development lifecycle. Your responsibilities will include: Architecture Review: Review the development agency’s proposed database schema (PostgreSQL/MongoDB) and technical architecture blueprint before coding begins to ensure scalability. Milestone Code Auditing: At the conclusion of each project milestone (approx. every 3–4 weeks), log into our private GitHub/GitLab repository to inspect the agency's backend and frontend pull requests for clean documentation, code efficiency, and stability. Vendor Accountability: Attend milestone demo calls alongside the founder to ask technical questions, review functional staging links, and issue a "Pass/Fail" recommendation before milestone payments are released to the agency. Security & Vulnerability Check: Perform a high-level review of data security protocols—specifically ensuring that user-uploaded medical badges, personal identifiers, and Stripe webhooks are completely secure and not exposed via public URLs. REQUIRED QUALIFICATIONS: 5+ years of experience as a Senior Full-Stack Engineer, Technical Lead, or Engineering Manager. Deep production experience building and deploying modern Progressive Web Applications (PWAs). Strong mastery of React/Next.js, Node.js (Express), or Python (FastAPI/Django). Proven experience with third-party API infrastructure drops (specifically Stripe billing pipelines and real-time chat SDKs like Sendbird/Twilio/CometChat). Excellent communication skills and the ability to explain complex technical vulnerabilities or shortcuts to a non-technical founder in simple language. Strict Neutrality Constraint: You cannot be affiliated with or employed by any software development agency bidding on this project. Send resume with expected monthly retainer
- Fixed price
- Intermediate
- Est. budget: $1,500.00
I am building a reusable lead follow-up and consultation booking automation system for med spas and aesthetic clinics. I need an experienced automation specialist who can build, test, document, and hand off a production-ready workflow system. This is not a one-off Zapier task. I need a reusable system that can be adapted for future clients. What the system should do: * Recover missed calls and website inquiries before they go cold * Send fast SMS/email follow-up to new leads * Collect basic service interest without giving medical advice * Send a consultation booking link * Log every lead in a CRM or lead tracker * Track lead status from new inquiry to booked consultation * Notify clinic staff when a lead replies, books, or needs human review * Escalate medical, treatment-specific, pricing-sensitive, or sensitive questions to staff * Run a simple no-response follow-up sequence * Send appointment reminders after a consultation is booked * Provide a weekly lead activity summary showing new leads, contacted leads, booked consultations, no-responses, and escalations Preferred stack: - Make - Airtable - Twilio - Calendly - Google Workspace / Gmail I am open to GoHighLevel or other stack recommendations if you can explain the trade-offs clearly. Important compliance guardrails: The system is for appointment scheduling and lead follow-up only. It must not provide medical advice, diagnose, recommend treatments, collect sensitive medical history, or answer treatment-specific questions. Any medical, pricing-sensitive, treatment-specific, or sensitive question should be routed to clinic staff. Required deliverables: - Workflow diagram - Recommended stack document - Working demo system - CRM/tracker template - SMS/email message templates configured with variables - Testing checklist - Client onboarding checklist - Duplication/setup guide - Loom walkthrough - Handoff documentation - Monthly tool cost estimate - Limitations and risks document Budget: Fixed price: $1,500 Budget flexible up to $2,000 for the right reusable system. Proposed milestones: Milestone 1 — Architecture and stack recommendation $300 Milestone 2 — Working build $800 Milestone 3 — Documentation and handoff $400 PLEASE COMPLETE THE SCREENING QUESTIONS WHEN APPLYING: 1. Describe a workflow you built involving SMS follow-up triggered by a call or form submission. What tools did you use? 2. What is the most complex Make.com scenario you have built? 3. Have you built Airtable as a CRM or lead tracker before? Describe the structure. 4. Have you integrated Twilio with Make or Zapier for SMS automation? 5. Have you connected Calendly webhooks to downstream automation? 6. How would you prevent this system from giving medical advice or collecting sensitive information? 7. What does your documentation and handoff process include? 8. For this use case, would you recommend GoHighLevel or Make + Airtable + Twilio? Why?