Full-Stack Developer
Location
France
Posted
100 days ago
Salary
€15 - €25 / hour
Seniority
Senior
Job Description
Full-Stack Developer
FRYA
• Build a real SaaS from scratch: full-stack development (front/back), architecture, performance optimization, security, and scalability. • Integrate and leverage advanced AI tools: OpenAI, Anthropic, Mistral, specialized LLMs, embeddings, prompt engineering, autonomous agents, etc. • Create complex API pipelines: multi-API calls (Google, Notion, WhatsApp, Pennylane, accounting platforms…), webhooks, authentication, and real-time event handling. • Manage and optimize databases: clean schema design, performant queries, relationships, indexing, and migrations. • Implement analytical computations and business rules: data extraction, automated analysis, scoring, anomaly detection, and recommendation generation. • Prototype very quickly: build, test, iterate, discard, and repeat when necessary. • Participate in all technical decisions: stack selection, product roadmap, technical trade-offs, and prioritization. • Work with full autonomy: understand a business problem, propose a solution, implement it, and ship it. • Adopt an entrepreneurial mindset: be proactive, take initiative, challenge choices, and prioritize product impact above all.
Job Requirements
- Proficient in JavaScript/TypeScript, ideally with Next.js, Node.js, or equivalent.
- Strong understanding of APIs.
- Able to analyze a problem, propose a solution, and take action.
- Experience with personal projects, school projects, or side projects.
- Autonomous, reliable, and a fast learner.
- Genuine desire to commit to a long-term project.
Benefits
- Monthly fixed salary + variable pay per mission (you earn more by producing).
- Direct involvement in building an AI SaaS in an untapped market.
- Access to an ultra-flexible work environment (flexible hours, remote work, schedule compatible with studies).
- Join the project very early (huge leverage on your future role in the company).
- Rapid skill growth: AI, automation, SaaS, scalable architecture, APIs, modern development practices.
- Real startup approach: no bullshit—you see the impact of your code immediately.
- Opportunity to grow into a key position (CTO / Lead Developer depending on ambition).
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