Technical Lead - Fullstack JS/TS lemlist
Sales engagement platform for personalized outreach and workflow scaling.
Permanent
Paris
Fully-remote
Salary: Not specified
Skills we're looking for
Collaboration and teamwork
React
TypeScript
lemlist
MongoDB
+1
You'll be part of
180 employees
SaaS / Cloud Services
Average age: 32
Founded in 2018
Revenue: 60,000,000 €
lemlist is the sales engagement platform that gives sales teams the unfair advantage they deserve.
Bootstrapped since day one, we’ve grown from 0 to $60M ARR in 6 years, without raising a single dollar. Today, we’re a profitable B2B SaaS company valued at $150M, trusted by 40,000+ sales teams worldwide to book more meetings and close more deals.
We’re a mostly remote team of 180+ people across 10+ countries, with a home base in Paris, and a work culture built on ownership, transparency, and bold moves.
At lemlist, we believe AI shouldn’t replace salespeople: it should make them unstoppable. That’s why we’re building powerful AI features to help sales teams craft ultra-personalized outreach, scale their workflows, and boost results across every prospection channel.
Everything we do is designed to empower salespeople, and help them win.
You'll be working on
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:
Sales Engagement with lemlist & Claap ($58M ARR, growing +60% YoY)
Social selling with Taplio & Tweet Hunter ($4M 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
75 - 85K€ fixed
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)
