Senior Full Stack Engineer (React + TypeScript, AI products) - 6 months, full-time
Budget / SalaryHourly project
TypeFreelance project
LocationRemote
Posted41 minutes ago
International opportunity — 100% remote, 6-month full-time project
Amazing Devs is a software engineering company. We are looking for a Senior Full Stack Engineer to work on our own SaaS products: a recruiting platform and an AI-powered developer tool. You will own features end to end, from the React UI to the API, the database and the AI integrations.
Rate: US$ 19 – 22 per hour (US dollars), about US$ 3,000 – 3,500 per month at 40 h/week, for 6 months
REQUIRED
- 5+ years of professional experience building web applications, working on both front end and back end
- Fluent English, spoken and written (C1 or higher). You will join calls in English
- React and TypeScript in production (hooks, React Query or similar, component libraries)
- Server-side TypeScript/Node.js: APIs, serverless or edge functions
- PostgreSQL: schema design, queries and access rules
- Authentication and authorization (OAuth, JWT, role-based access)
- RESTful APIs and third-party integrations (for example, GitHub APIs and webhooks)
- Automated tests and Git-based CI/CD
- Full-time availability (40 h/week), with at least 4 hours of overlap with US Eastern Time (10:00–14:00 ET)
NICE TO HAVE
- Python
- Integrations with LLM APIs (OpenAI, Anthropic or similar), prompt design and AI agents
- Supabase (Postgres, Auth, Edge Functions)
- Cloudflare Workers or another edge platform
- TanStack (Query, Router or Start), Vite, Tailwind and shadcn/ui
- End-to-end testing with Playwright
- Experience building SaaS products or HR/recruiting tools
RESPONSIBILITIES
- Build and ship features across the stack: React/TypeScript UI, APIs and database
- Build and improve AI features that call LLM APIs
- Model data and write efficient SQL queries
- Build integrations with external services
- Write automated tests and keep the CI/CD pipeline green
- Fix bugs reported by QA and take part in code reviews
- Estimate your own tasks and report progress in writing
HOW TO APPLY
Generic bids will not be considered. Start your bid with the words "Full Stack 5+" and answer these 4 questions:
1. How many years have you worked as a full stack engineer, and what was the stack in your most recent role?
2. Describe one feature you built end to end: the problem, your part in the front end and the back end, and the result.
3. Have you built a feature that calls an LLM API? What did it do?
4. Which hours can you work in US Eastern Time?
HIRING PROCESS
1. Bid review against the requirements above.
2. A short video in English (3 to 5 minutes), recorded on your phone and sent through the Freelancer chat. Talk about your career, a project you are proud of and what you want to learn next.
3. A 60-minute technical interview in English.
4. Project award and onboarding.
WHAT WE OFFER
- US$ 19 – 22 per hour (about US$ 3,000 – 3,500 per month), paid in US dollars through Freelancer
- 6-month full-time project
- 100% remote
Amazing Devs is a software engineering company. We are looking for a Senior Full Stack Engineer to work on our own SaaS products: a recruiting platform and an AI-powered developer tool. You will own features end to end, from the React UI to the API, the database and the AI integrations.
Rate: US$ 19 – 22 per hour (US dollars), about US$ 3,000 – 3,500 per month at 40 h/week, for 6 months
REQUIRED
- 5+ years of professional experience building web applications, working on both front end and back end
- Fluent English, spoken and written (C1 or higher). You will join calls in English
- React and TypeScript in production (hooks, React Query or similar, component libraries)
- Server-side TypeScript/Node.js: APIs, serverless or edge functions
- PostgreSQL: schema design, queries and access rules
- Authentication and authorization (OAuth, JWT, role-based access)
- RESTful APIs and third-party integrations (for example, GitHub APIs and webhooks)
- Automated tests and Git-based CI/CD
- Full-time availability (40 h/week), with at least 4 hours of overlap with US Eastern Time (10:00–14:00 ET)
NICE TO HAVE
- Python
- Integrations with LLM APIs (OpenAI, Anthropic or similar), prompt design and AI agents
- Supabase (Postgres, Auth, Edge Functions)
- Cloudflare Workers or another edge platform
- TanStack (Query, Router or Start), Vite, Tailwind and shadcn/ui
- End-to-end testing with Playwright
- Experience building SaaS products or HR/recruiting tools
RESPONSIBILITIES
- Build and ship features across the stack: React/TypeScript UI, APIs and database
- Build and improve AI features that call LLM APIs
- Model data and write efficient SQL queries
- Build integrations with external services
- Write automated tests and keep the CI/CD pipeline green
- Fix bugs reported by QA and take part in code reviews
- Estimate your own tasks and report progress in writing
HOW TO APPLY
Generic bids will not be considered. Start your bid with the words "Full Stack 5+" and answer these 4 questions:
1. How many years have you worked as a full stack engineer, and what was the stack in your most recent role?
2. Describe one feature you built end to end: the problem, your part in the front end and the back end, and the result.
3. Have you built a feature that calls an LLM API? What did it do?
4. Which hours can you work in US Eastern Time?
HIRING PROCESS
1. Bid review against the requirements above.
2. A short video in English (3 to 5 minutes), recorded on your phone and sent through the Freelancer chat. Talk about your career, a project you are proud of and what you want to learn next.
3. A 60-minute technical interview in English.
4. Project award and onboarding.
WHAT WE OFFER
- US$ 19 – 22 per hour (about US$ 3,000 – 3,500 per month), paid in US dollars through Freelancer
- 6-month full-time project
- 100% remote
Apply on Freelancer →
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