Senior Software Engineer (Fullstack JS/TS) - CDI

Symbiotic Security is the AI-powered coding solution for secure, compliant software development. We bridge the gap between AI productivity and enterprise security within the IDE and CI/CD pipelines.

We are looking for a senior builder to join our Paris tech hub and help us scale our core products: Symbiotic Code & Symbiotic Flow.

The Role in a Nutshell:

• 💰 €60K - €85K + Equity (BSPCE)
• 📍 Paris (Morning Laffitte) | 2 days remote/week
• 🛠️ Stack: TypeScript, React, Node.js + Python (Django)
• 🚀 Impact: Join a fast-growing team of 30, building the future of Secure AI.

Your Mission:

• Ship Product: Build features across the JS/TS stack (APIs, IDE extensions, CLI).
• Engineering Excellence: Drive reliability, performance, and clean architecture.
• Mission-First Mindset: While you're a JS expert, you’re ready to "cross the aisle" and contribute to our Python services when needed.
• Lead by Example: High testing standards, peer reviews, and technical guidance.

What We’re Looking For:

• Experience: 5+ years shipping production-grade software.
• Tech Mastery: Deep expertise in TypeScript, React, and Node.js.
• Startup Mindset: Autonomous, impact-driven, and comfortable in a fast-paced environment.
• Bonus: Curiosity for Python, Bun, or asynchronous/distributed systems.

Perks & Culture:

• AI-native culture (we encourage the use of ChatGPT/Copilot/Claude).
• Monthly "Bug Days" & dedicated "Cool Down" periods for tech debt.
• 100% Health insurance, Swile, €500 equipment budget, €2,000 referral bonus.
• Fast hiring process: Completed in 2 weeks.