Expert technique backend

Expert technique backend (Node.js / MongoDB) – Full remote 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 $44M ARR in 7 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 looking for a Senior Node.js Developer to join our team. You'll be responsible for designing and developing new features for our SaaS products. We need someone who is passionate, autonomous, and loves technical challenges. Your main missions will be: Design and develop new features from scratch, both on the frontend and backend, but with more complexity on the backend side Improve the code base with refactoring, bug fixes, and optimization Work on multiple projects simultaneously Facilitating knowledge sharing and capacity building by training fellow developers, enhancing overall team competency and productivity Key results: Within 3 months you will have: Successfully onboarded and integrated into the team Developed a deep understanding of our B2B SaaS products and their technical requirements Contributed to the development of new features and improvements to our existing code base Within 12 months you will have: Played a key role in the development and delivery of multiple successful projects Made significant contributions to the optimization and scalability of our software products What’s in it for you? Work in a profitable, bootstrapped, high‑growth company that doesn’t rely on external funding You will have the opportunity to make a lasting impact on a suite of products that are changing the game in multiple industries Work with passionate senior engineers who share their knowledge and expertise Great ownership of your work. You will be part of a dynamic, innovative, and passionate team that respects autonomy and encourages individual input No endless meetings Full remote policy You will grow professionally and personally, enhancing your technical skills and expanding your global network Preferred Experience Must have a proven track record in building and maintaining web applications A very robust understanding of NodeJS and MongoDB Able to work independently and take ownership of complex projects Fast learner Comfortable with agile methodologies Good communicator Comfortable with remote tools such as Gather, Slack, and Notion Speak French and English and are in the French timezone Nice to have Experience in a B2B SaaS startup Self‑taught, developing personal projects since childhood or evenings/weekends Additional Information Salary between €60K and €75K fixed salary + €15K bonus Location flexible; we just want you to be in a timezone close to ours (France +/- 3 hours) Profit sharing: when lemlist wins, all team members share the profits Comprehensive 100% premium medical coverage for you and your family Swile Meal Tickets: enjoy daily meal tickets to fuel productivity Full‑remote Work Setup: well‑funded home office budget Gear: 48GB MacBook Pro + necessary tools Team building: annual meetups worldwide Recruitment process Interview with Lucas, our TAM Interview with Corentin, VP of Engineering Technical Interview with Mickael, CTO, and Corentin Interview with Charles, CEO Seniority level Mid‑Senior level Employment type Full‑time Job function Engineering and Information Technology Industries Software Development #J-18808-Ljbffr