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[login to view URL] + API Implementer—AI Platform Build-Out (Full-Time Remote Contract, Long-Term) ** TO APPLY: You must include your GitHub profile (with commits older than 3 months), one live project link, and a 90-second Loom video showing you running your code. Applications without all three are automatically rejected. ** NO AGENCIES. NO SUBCONTRACTING. You must be the person writing the code, on the calls, and in the commits. If we discover subcontracting at any point, the contract is terminated immediately. Role Summary We are building an AI-driven platform combining web, automation, voice, and chat systems. You will implement production features in [login to view URL] under technical lead direction, integrate external platforms via APIs and webhooks, and build security and reliability guardrails. This is a hands-on implementation role; we move fast and require proof of skill, not resumes. What You Will Build (Real Work) • Multi-tenant website config service + safe update pipeline • Public config endpoints resolved by Host header • Allowlisted updates only (no raw HTML), XSS-safe sanitization • Audit log + versioning + rollback-ready structure • Webhook integrations with HMAC signature verification • Unit and integration tests and clean PRs Must-Have Skills (Non-Negotiable) You must already be comfortable working daily with the following. Do not apply if you need to learn these on the job: • Strong experience in JavaScript and TypeScript • Modern web frameworks: React and [login to view URL] (App Router) • API routes/route handlers, JSON validation, error handling • Git/GitHub (branches, PRs, reviews, resolving conflicts) • REST APIs + Webhooks (auth headers, HMAC signatures, retries, idempotency) • SQL and PostgreSQL databases (Supabase experience preferred) • Prompt engineering and voice agent integration (ElevenLabs experience preferred) • Strong web design skills with an understanding of content writing and content management • Proficiency in at least one major programming language: Python, JavaScript, or Java • Working knowledge of scalable system design • Zod or similar schema validation • Security fundamentals: XSS prevention, secrets handling, tenant isolation, replay prevention Tools You Must Use Daily • Cursor in VS Code • Postman or Insomnia • GitHub • Terminal (npm/pnpm, environment variables) Working Style • Daily written status update (brief, async-friendly) • All code submitted via pull requests, no direct pushes to main • Clean code, clear commit messages, documented decisions • Must be available for daily standup overlap (minimum 2–3 hours during US Central Time business hours) Compensation + Engagement The role is a full-time remote contract, requiring 40 hours per week, and it is intended to be a long-term commitment. a monthly fixed salary (depending on experience) with performance bonuses. Contract-to-hire model: 30-day evaluation period before conversion to ongoing role. This is a startup building from the ground up; early contributors who prove their value grow with the company. Hiring Process (Fast + Fair) 1. Short screening form + GitHub (must have commits older than 3 months) + 90-second Loom video 2. Paid technical test (fixed-price milestone, 4–5 hours, compensated regardless of outcome) 3. 15-minute live verification: run tests on screen and make one code change live Applications missing GitHub, a live project link, or a Loom video are automatically discarded.
Project ID: 40257510
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Active 19 days ago
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119 freelancers are bidding on average $1,172 USD for this job

Hello, I am excited about the opportunity to contribute to your AI platform build-out. With extensive experience in API implementation and a strong background in developing scalable solutions, I can help you effectively integrate various components to enhance your system's functionality. My focus will be on delivering a seamless user experience while ensuring robust data management and performance optimization. I understand the importance of building a reliable and efficient platform for your project. I am committed to delivering high-quality results, whether it's creating user-friendly interfaces or ensuring smooth interactions between your APIs. I look forward to discussing how I can support your vision for this long-term contract. Regards, Nurul Hasan
$750 USD in 28 days
8.7
8.7

With more than 14 years in web and app development, I bring a wealth of experience to the table that extends well beyond the Python and JavaScript skills you require. I am a proven professional, well-versed in Git/GitHub, have Sound knowledge of API building and integration, including REST APIs, and HTTPS. In addition, I'm comfortable with unit and integration testing, as well as clean code submission through PRs - all of which are essential for this role.I have spent years honing my skills in modern web frameworks such as React.js and Next.js-expanded App Routing. I also boast robust SQL database expertise- PostgreSQL being one of my specialties-, as well as excellent proficiency with TypeScript, an essential tool mentioned. Prioritizing clean architecture designs and agile development, my codes are consistently documented, making future dev processes smoother. To sum up, as a freelance developer who genuinely believes in long-term relationships, I will not only positively contribute to your startup's early stages but will also grow with your business having value proved. My philosophy is "An architect by definition is one who creates." Hence, it'll be my utmost pleasure to exhibit my creativity via design that attracts clients, code that performs flawlessly while developing strategies that build businesses on your project.
$1,500 USD in 7 days
8.5
8.5

Deer Park, United States
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Member since Feb 25, 2014
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