Location: Paris (75002) | Hybrid (2 days remote/week)
About the companyJoin the company, a fast-growing leader in AI-powered cybersecurity. Our mission-driven engineering team (18 engineers, 4 technical leads, 3 product owners) is dedicated to redefining application security with cutting-edge detection and automation.
We operate at the forefront of technology and research from our Paris office.
About the RoleAs a Senior Backend Engineer you will work in a team with talented security researchers. You’ll champion innovation, and ensure research translates into impactful production solutions.
What You'll Do
- Agentic scanning systems: Build systems that autonomously explore applications, maintain context, and execute complex testing strategies.
- Security detection engine: Design and implement reliable, production-grade vulnerability detection logic (injection, auth issues, business logic flaws, etc.).
- AI-driven testing: Integrate LLMs and structured reasoning into scanning workflows to improve coverage and reduce false positives.
- Distributed infrastructure: Work on systems that orchestrate thousands of concurrent scans (Kubernetes, queues, resource management).
- Performance & reliability: Ensure scans are fast, deterministic, and cost-efficient despite high complexity and concurrency.
- Core platform design: Contribute to architecture decisions around memory systems, execution environments, and data models.
Our Tech Stack & Focus
- Languages: Python (primary), Go (performance/network components)
- Runtime: Containerized workloads on Kubernetes (EKS), supporting long and resource-intensive scans
- Scaling: Kubernetes Jobs & queue-driven autoscaling
- Web Automation: Playwright + headless Chromium
- Data: PostgreSQL, S3-compatible object storage, Redis (limited use)
- Messaging: Kafka
- Observability: OpenTelemetry, Grafana Cloud
- CI/CD & Infra: GitLab CI, Terraform
Perks & Benefits
- 💸 Significant equity (Stock Options/BSPCE) – become a core stakeholder in the company’s journey
- ❤️🩹 Top-tier health insurance with Alan
- 🍕 Meal vouchers with Swile
- 💪 EGYM Wellpass sport subscription
- 📚 Continuous learning: budgets for books and online courses
- 💻 Premium equipment to support your work
- 🎁 Dedicated time for open-source projects
- 🌍 Present research at top international conferences (RSAC, BlackHat, DEFCON, BSides, APIDays)
About You
- 4+ years of experience in backend engineering, security research, or applied R&D in a product environment
- Strong software engineering fundamentals and ability to work across domains (systems, networking, web architectures)
- Proficient in at least one backend language (Python, Go, or similar)
- Experience designing and shipping production systems with measurable impact
- Ability to translate complex ideas or research into reliable, scalable implementations
- Strong analytical mindset, with a focus on pragmatism and impact
- Comfortable collaborating across engineering and security to deliver end-to-end solutions
Nice to have:
- Experience in application security (web security, pentesting, bug bounty, etc.)
- Exposure to AI/LLM-based systems
- Familiarity with browser automation or large-scale distributed systems
Ready to lead the next wave of AI-powered vulnerability detection? Apply now to join the company and make a real impact in cybersecurity!
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Senior Backend Engineer — AI-Driven AppSec & Scanning in Paris employeur : Escape
Escape est un employeur exceptionnel, offrant un environnement de travail dynamique et innovant au cœur de Paris. En tant qu'ingénieur backend senior, vous aurez l'opportunité de collaborer avec des chercheurs en sécurité sur des projets de pointe, tout en bénéficiant d'une culture de travail hybride qui favorise l'apprentissage continu et la présentation de recherches. Rejoindre notre équipe, c'est s'engager dans une mission significative tout en profitant d'opportunités de croissance professionnelle dans le secteur de la cybersécurité.
