Technical Lead - Fullstack JS/TS
Lemlist · Lyon
What this role requires
5 requirements, read out of the advert rather than guessed from the job title:
Also mentioned, not required: French, English. Worth having, but their absence is not what gets a CV filtered out.
See how often each of these is required across open full-stack roles in Europe.
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Job description
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, giving us freedom and independence
170 people, remote-friendly, agile
We run two product lines:
Read the full description (55 more sections)Show less
Sales Engagement with lemlist & Claap ($56M 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 Tech Lead or a Senior Fullstack TypeScript Developer to join our team.
👉 The role starts as a Senior Developer, then evolves into a Tech Lead position after 3-6 months, once you’ve proven yourself in the squad.
You’ll design, build, and ship features across frontend and backend, improve performance, and progressively take leadership within your squad to set technical standards, 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 in your squad: drive quality, make technical choices, and align delivery
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
Within 6 months
You’ve led delivery of multiple successful projects
You’ve had direct impact on scalability & performance
You’ve grown into your Tech Lead role 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
8+ years in TypeScript / JavaScript (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)
Nice to have
B2B SaaS startup experience
You worked on a SaaS that scaled massively
You are familiar with advanced performance optimization
Self-taught hacker or side-project builder
Passionate about experimenting & creating beyond work
Package
65 - 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 🌍
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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