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Senior Software Engineer (Copy)
Symbiotic Security
Morning LaffitteHybrid3mo ago
- Employment
- Full-time
- Seniority
- Senior
About the role
🚀 About Symbiotic Security
- Symbiotic Code — https://www.symbioticsec.ai/products/symbiotic-code
- Symbiotic Flow — https://www.symbioticsec.ai/products/symbiotic-flow
🎯 Your Mission
- Build and ship product features across our JavaScript/TypeScript stack (Node + React) for Symbiotic Code.
- Contribute to performance, reliability, and overall system design as we scale.
- Collaborate closely with Abir (Engineering Manager), Minh Thang (Tech lead) and Édouard (CTO) on technical and product decisions.
- Work on diverse scopes: APIs, portal features, IDE experience, CLI workflows, and internal tooling.
- Lead continuous improvement initiatives: code reviews, automated testing, CI quality gates, and release practices.
- Offer technical guidance to the team and help raise the quality bar.
🌱 What You’ll Have Achieved
⚙️ Tech Stack & Environment
- Languages: JavaScript / TypeScript (primary)
- Frontend: React (portal / SaaS experience)
- Backend: Node.js (TypeScript) for APIs and services
- Testing: strong testing discipline (unit/integration, CI-driven)
- Nice to have: Python, Bun, OpenTUI
- Observability: logs / traces / monitoring (tooling in place; experience appreciated)
🧠 What We’re Looking For
🎓 Core Skills
- Proven experience (typically 5+ years) as a software engineer delivering production systems.
- Strong track record in TypeScript/JavaScript ✅
- Solid experience with React and Node.js (fullstack ownership)
- Strong engineering fundamentals: system thinking, pragmatic architecture, clean code, and delivery discipline
- Strong testing discipline and ability to design for maintainability
🎓 Appreciated
- Experience designing and operating asynchronous/distributed systems
- Observability / performance optimization / reliability mindset
- Comfort using LLM tools (ChatGPT, Copilot, Claude) responsibly
- Ability (and curiosity) to contribute to Python services when needed
💬 Soft Skills & Mindset
- Early-stage startup mindset: autonomous, fast, impact-driven
- Curious, rigorous, and eager to understand before acting
- Strong communicator, collaborative, no ego
- Capable of challenging ideas and defending opinions constructively
- Product-oriented with a desire to build meaningful software
- Work-life balance valued
🧩 Methodology & Culture
- Agile organization (2-week sprints, continuous releases)
- Systematic code reviews
- Occasional pair programming
- Mix of maintenance, new features, and R&D work
- Monthly “Bug Day” (stress testing the product)
- “Cool down period” planned for internal tech projects
👥 Team
- Collaboration > hierarchy
- Technically demanding but kind environment
- No-ego culture
- Strong product–tech alignment
💰 Compensation & Benefits
Hiring Process
- Call with our Talent Acquisition - Blanche - 30 minutes
- Meeting with our Engineering Manager - Abir - 45 minutes to 1 hour
- Technical “case” (Algorithm live coding + System Design) + debrief — 2 hours
- Culture fit - Meeting with the CTO and lunch with the team — 2 hours
- Formal hiring proposal
Perks & benefits
- Medical Insurance
- Paid Time Off
- Home Office Budget
- Equity Compensation
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