Staff Engineer - Fullstack JS/TS

lemlist is a global B2B SaaS business with one mission: help any business grow.

We’re doing $50M+ ARR, while being:

We’re looking for a Staff Engineer to join our team.

You’ll design, build, and ship features across frontend and backend, improve performance, and progressively take leadership on more transversal topics, mentor peers, and drive delivery.

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• You’re fully onboarded and comfortable in our stack

• You’ve shipped meaningful features in production

• You’ve contributed to improving our codebase

• You've brought knowledge to the team that made other people improve

• You’ve led delivery of multiple successful projects

• You’ve had direct impact on scalability & performance

• You’ve grown into your an internal reference on some technical topics and mentor others

• Join a bootstrapped, profitable, fast-growing SaaS company

• Build products used by thousands of businesses worldwide

• See your impact quickly with a very short feedback loop

• Work with senior engineers who love to learn and share knowledge

• 10+ years in Software Engineering

• 7+ years in JavaScript/TypeScript (frontend + backend)

• Solid skills in Node.js, React, MongoDB

• Proven track record building & maintaining web apps

• Always hungry to learn more, particularly around JS/TS

• Autonomous, fast learner, and collaborative

• Fluent in French & English, based in French timezone (+/- 2h)

• B2B SaaS startup experience

• Self-taught hacker or side-project builder

• Passionate about experimenting & creating beyond work

• 70-75K€ fixed + 18K€ bonus

• Profit sharing: when lemlist wins, you win too

• Full perks: Alan Blue (healthcare) 100% taken care of for you and your family, Swile meal vouchers, 100% of your Navigo card, MacBook Pro & remote setup budget

• Annual global team retreat in amazing locations 🌍

1. Interview with Lucas (TAM)

2. Technical interview with Corentin (VP of Engineering)

3. Technical interview with Mickael (CTO)

4. Final chat with Charles (CEO)