Full Stack Engineer (Mid-level)

Job summary
Permanent contract
Paris
A few days at home
Salary: €58K to 70K
Experience: > 5 years
Skills & expertise
Cybersecurity knowledge
Communication skills
DevSecOps
Grafana
GraphQL
+12

Escape
Escape

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Questions and answers about the job

The position

Job description

👉 We’re looking for a Full Stack Engineer (Mid-Level) to own significant features end-to-end on our SaaS platform: the interface through which security teams discover, triage, and remediate vulnerabilities across their applications.

You’ll work in a squad of 4 engineers with a Technical Lead. Senior here means you drive technical decisions within your scope, mentor others, and ship autonomously. You won’t be pixel-pushing mockups: you’ll be deciding how to build things.

Context

  • Location: Paris (75002), 2 days remote/week

  • Company: Escape – Leading AI Cybersecurity Startup

  • Cofounders: CEO (Tristan Kalos) and CTO (Antoine Carossio)

  • Engineering Team: 15 Engineers, 4 Technical Leads, 2 Product Owner

What you will actually work on

  • Building a product that stays fast at enterprise scale: You’ll ship UIs that remain snappy with large datasets: tens of thousands of assets/endpoints, millions of findings, complex faceted search, and real-time refresh.

  • PostgreSQL & data performance that actually matters: Our product is data-heavy and latency-sensitive. You will work with advanced SQL functionalities : query design, indexing strategies, pagination, caching where it makes sense, and shaping data for GraphQL so the UI stays responsive.

  • AI-native interfaces: We’re building workflows where AI meaningfully changes how security teams work: guided triage, assisted remediation, smart extraction of insights from noisy scans — all embedded into the product, with tight UX and reliability requirements.

  • Security & developer workflows end-to-end: You’ll design and ship the experience from discovery → triage → remediation: risk scoring views, remediation journeys, and the integrations that make it real (webhooks, CI/CD, Git providers, ticketing).

  • Architecture decisions that stick: We’re scaling fast and iterating weekly. You’ll influence both data modelling and system design — with a strong bias toward pragmatic, maintainable systems.

  • Impactful changes: You won’t just implement tickets. You’ll take a problem from the customer’s pains to shipping solutions, measuring and mentoring others along the way.

Our Stack

  • Frontend: Svelte + TypeScript, GraphQL (client)

  • Backend: Node.js, GraphQL (Yoga + Pothos), Prisma, PostgreSQL, Kafka

  • Infrastructure: AWS (FTR-certified), GitLab CI, Grafana

  • Deep Tech (exposure, not required): Python (AI/ML), Go (network tooling)

  • Compliance: We follow modern standards: comprehensive test coverage (unit, integration, E2E), Codecov, SOC-2 compliant processes. Code review is rigorous but not bureaucratic.

What we offer

  • 💸 Equity: Significant BSPCE equity — we just raised at a strong valuation, and early engineering hires have meaningful upside

  • ❤️‍🩹 Health first: Comprehensive health insurance with Alan

  • 🍕 Meal vouchers with a Swile Card

  • 💪 Sport subscription to have preferential prices to go to the gym, with Gymlib

  • 📚 A place to learn and grow: Unlimited access to books and online courses to help you excel in your role

  • 💻 Tech perks: Get the latest tech gear, including Apple (or not) equipment and ultra-wide screen, to do your best work

  • 🎁 Open Source: Free time to work on cool Open Source Projects.

  • 🌎 Global exposure: Present groundbreaking research at top international conferences, like APIDays (Paris, London, New York), BSides (Las Vegas, San Francisco, etc.) and RSAC (San Francisco), BlackHat and DEFCON (Las Vegas), etc.


Preferred experience

Experience

  • 2+ years building production web applications, with depth in both frontend and backend

  • Strong TypeScript: not just “can write it” but actually leverages the type system

  • GraphQL experience: you’ve designed schemas, not just consumed them

  • Ownership mentality: you see a problem, you fix it, you don’t wait for permission

  • Clear communication: can explain technical tradeoffs to non-technical stakeholders

Bonus points:

  • Experience with Svelte (or willingness to ramp fast: it’s learnable in a week if you know React/Vue)

  • Background in security, DevSecOps, or developer tooling

  • Startup experience: you know what “shipping fast” actually means


Recruitment process

We respect your time and will make it quick and efficient. The entire process will be completed within 1 week.

🤓 1 meeting with the HR representative - 30 minutes

💻 Technical challenge

🤔 1 technical deep dive with the Technical Lead - 1 hour

👋 1 personal experience interview the Head of Engineering - 1 hour

👀 1 leadership & strategy interview the CTO - 30 minutes

💌 Formal hiring proposal.

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