Technical Lead - Fullstack JS/TS

The role

You will design, build, and ship features across frontend and backend. You will improve performance and progressively take leadership within your squad to set technical standards, mentor peers, and drive delivery.

What you will do

• Build new features end-to-end (frontend + backend)
• Improve the codebase through refactoring, bug fixes, and optimization
• Collaborate with the rest of the team to solve technical issues
• Mentor fellow developers, share knowledge, and raise the bar
• Drive quality, make technical choices, and align delivery as Tech Lead

Required qualifications

• 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
• Worked on a SaaS that scaled massively
• Familiar with advanced performance optimization
• Self-taught hacker or side-project builder
• Passionate about experimenting & 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 (office in Paris if you prefer)
• No endless meetings, high autonomy, big impact
• Profit sharing
• 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

About the company

lemlist is a global B2B SaaS business with one mission: help any business grow. It is a bootstrapped and profitable company with 170 people.