Staff Engineer - Fullstack JS/TS
- Role
- Fullstack
- Experience
- Staff
- Employment
- Full-time
- Company size
- Mid-size
Open to FR only · UTC-1…UTC+3. Set where you work from to check your eligibility.
No BS summary
Staff fullstack JavaScript/TypeScript engineer with 10+ years in software engineering and 7+ years across frontend and backend. Must know Node.js, React, MongoDB, be fluent in French and English, and be based within French timezone ±2h.
Core skills
Required skills
Required languages
About lemlist
lemlist is a global B2B SaaS business with one mission: help any business grow.
We’re doing $54M+ 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
- 70-80K€ 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 🌍
Recruitment process
- Interview with Lucas (TAM)
- Technical interview with Corentin (VP of Engineering)
- Technical interview with Mickael (CTO)
- Final chat with Charles (CEO)
What you'll do
- Design, build, and ship features across frontend and backend.
- Improve performance.
- Progressively take leadership on transversal technical topics.
- Mentor peers.
- Drive delivery.
- Build new features end-to-end by working with the Product team.
- Improve the codebase through refactoring, bug fixes, and optimization.
- Collaborate with the team to solve technical issues.
- Share knowledge and raise the engineering bar.
- Step up as Tech Lead on specific topics, drive quality, make technical choices, and align delivery.
- Solve difficult problems impacting tens of thousands of customers every day.
What they require
- 10+ years in Software Engineering.
- 7+ years in JavaScript/TypeScript across frontend and backend.
- Solid skills in Node.js, React, MongoDB.
- Proven track record building and maintaining web apps.
- Always hungry to learn more.
- Autonomous, fast learner, and collaborative.
- Based in French timezone (+/- 2h).
- Preferred: B2B SaaS startup experience.
- Preferred: Self-taught hacker or side-project builder.
- Preferred: Passionate about experimenting and creating beyond work.
Benefits
- 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 with office in Paris if preferred.
- No endless meetings, high autonomy, big impact.
- 18K€ bonus.
- Profit sharing.
- Alan Blue healthcare 100% covered for you and your family.
- Swile meal vouchers.
- 100% of Navigo card covered.
- MacBook Pro.
- Remote setup budget.
- Annual global team retreat in amazing locations.
lemlist is a sales engagement platform for sales teams. It is a profitable bootstrapped B2B SaaS company, valued at $150M+, trusted by 40,000+ sales teams worldwide.