Staff Engineer - Fullstack JS/TS at Lemlist
- Company: Lemlist
- Location: Paris
- Employment type: Full Time
- Posted: 2026-10-30
About lemlist
lemlist is a global B2B SaaS business with one mission: help any business grow.
We’re doing 60M+ ARR, while being:
Bootstrapped & profitable
170 people, remote-friendly, agile
Majority-owned by our founder Guillaume Moubeche, giving us freedom and independence
We run two product lines:
Sales Engagement with lemlist & Claap ($50M ARR, growing +60% YoY)
Social selling with Taplio & Tweet Hunter ($4.5M ARR)
Our ambition: become a world-class giant in Sales Tech.
Our mantra: Keep growing.
About the role
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.
What you’ll do
Build new features end-to-end (frontend + backend) by working hand-in-hand with a strong Product team
Improve the codebase (refactoring, bug fixes, optimization)
Collaborate with the rest of the team to solve technical issues
Mentor fellow developers, share knowledge, and raise the bar
Step up as Tech Lead on specific topics: drive quality, make technical choices, and align delivery
Solve difficult problems that impact 10,000s of customers every day
What success looks like
Within 3 months
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
Within 12 months
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
What’s in it for you
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
Remote-first culture (office in Paris if you prefer 🇫🇷)
No endless meetings, high autonomy, big impact
About you
Must have
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
Autonomous, fast learner, and collaborative
Fluent in French & English, based in French timezone (+/- 2h)
Nice to have
B2B SaaS startup experience
Self-taught hacker or side-project builder
Passionate about experimenting & creating beyond work
Package
75-90K€ base salary
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 🌍
Recruitment process
Interview with Lucas (TAM)
Technical interview with Corentin (VP of Engineering)
Technical interview with Mickael (CTO)
Final chat with Charles (CEO)
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