{"id":446988,"url":"https://alion.io/job/lemlist-senior-fullstack-typescript-developer-product-engineer","title":"Senior Fullstack TypeScript Developer (Product Engineer)","company":{"id":172799,"name":"lemlist","domain":"lemlist.com","url":"https://alion.io/company/lemlist","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":97,"open_postings":9,"ghost_share":0,"stale_share":0.111,"repost_share":0,"time_to_fill_p50_days":49,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Paris, France"],"countries":["FR"],"hiring_countries":["FR"],"hiring_countries_total":1,"salary":{"min":60000,"max":70000,"currency":"EUR","period":"year","gross":null,"usd_annual":78619},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true},{"name":"Node JS","optional":true},{"name":"Notion","optional":true},{"name":"React.js","optional":true},{"name":"Slack","optional":true}],"status":"live","first_seen_at":"2026-07-09T07:19:16Z","employer_posted_date":"2026-07-09","last_verified_at":"2026-10-30T05:10:53Z","board_verified":true,"closed_at":null,"days_open":112,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":111},"description":"About lemlist\nlemlist is a global B2B SaaS business with the mission to help any business grow.\nWe are doing over $54M in ARR while being:\nBootstrapped\n\nProfitable\n\nA small, agile team of 170 highly talented people, remote-friendly\n\nMajority owned by an entrepreneur, Guillaume Moubeche, Founder & Chairman - which gives us maximum freedom\n\nWe operate 2 business lines:\nSales Engagement with our flagship products lemlist & Claap, generating $49.5M ARR and growing over 50% year over year\n\nPersonal Branding with Taplio & Tweet Hunter, generating $4.5M ARR\n\nlemlist is a highly ambitious company that aims to become a world-class giant in the Sales Tech space.\nOur mantra: Keep growing - and we live by it every day.\nJob Description\nWe're looking for a Senior Fullstack TypeScript 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.\nYour main missions will be:\nDesign and develop new features from scratch, both on the frontend and backend, Independently developing new features that enhance user experience and increase product functionality.\n\nStepping into the role of technical lead within your squad, driving excellence and setting standards.\n\nImprove the code base with refactoring, bug fixes, and optimization\n\nWork on multiple projects simultaneously\n\nHelp the customer support team on technical issues, providing prompt and effective solutions\n\nFacilitating knowledge sharing and capacity building by training fellow developers, enhancing overall team competency and productivity.\n\nKey results\nWithin 3 months you will have\nSuccessfully onboarded and integrated into the team\n\nDeveloped a deep understanding of our B2B SaaS products and their technical requirements\n\nContributed to the development of new features and improvements to our existing code base\n\nWithin 12 months you will have\nPlayed a key role in the development and delivery of multiple successful projects\n\nMade significant contributions to the optimization and scalability of our software products\n\nWhat’s in it for you?\nWork in a profitable, bootstrapped, and high-growth company that doesn’t rely on external funding to live.\n\nYou will have the opportunity to make a lasting impact on a suite of products that are changing the game in multiple industries.\n\nWork with passionate senior engineers who share their knowledge and expertise\n\nGreat ownership of your work. You will be part of a dynamic, innovative, and passionate team that respects autonomy and encourages individual input.\n\nNo endless meetings\n\nFull remote policy\n\nYou will grow professionally and personally, enhancing your technical skills and expanding your global network.\n\nPreferred Experience\nMust have\nYou’re an expert in TypeScript / JavaScript with at least 7 years of XP\n\nYou have a proven track record in building and maintaining web applications.\n\nYou have a robust understanding of NodeJS and MongoDB, and ideally React\n\nYou’re able to work independently and take ownership of complex projects\n\nYou’re a fast learner\n\nYou’re comfortable with the agile methodologies\n\nYou like to communicate\n\nYou like to work remotely, Gather, Slack and Notion are your best friends\n\nYou are adaptable and like to discover new things and you can work on front-end integration, back-end development, mongo optimization, performance issues and more\n\nYou speak French and English and you are in the French timezone\n\nNice to have\nYou have a first experience in B2B SaaS startup\n\nYou are self-taught, you have been developing personal projects since you were a child or in the evenings and weekends. This is not mandatory but a big plus for us, we are all passionate about programming and like to create things, both at work and outside\n\nAdditional Information\nSalary between 60K€ and 70K€ fixed salary + 18K€ bonus\n\nWhere you live, and work is totally up to you - we do have an office in Paris if you enjoy life at the office\n\nProfit sharing: When lemlist wins, all team members share the profits\n\nAlan Blue: Comprehensive 100% premium medical coverage for you and your family\n\nSwile Meal Tickets: Enjoy daily meal tickets to fuel productivity\n\nNavigo Card: Seamless commuting with a 100% covered Navigo card\n\nFull-remote Work Setup: A well-funded home office budget to ensure seamless remote work\n\nGear: Get a 48GB Macbook Pro + tools and equipment you need for your job\n\nTeam building: We all meet once per year at really cool places around the world (you can check our video here ;)\n\nRecruitment process\nInterview with Lucas our TAM\n\nTechnical interview with Corentin, our VP of Engineering\n\nTechnical Interview with Mickael, our CTO\n\nInterview with Charles, our CEO","description_format":"text","description_chars":4741,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"French","level":"All levels","optional":false}]},"benefits":["Apple Macbook","Home office"],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"},{"name":"Paris","iso":null,"kind":"city"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Autonomous Driving","AI Agents"],"lifecycle":[{"event":"open","at":"2026-09-06T07:51:31Z"}],"visa":[],"liveness":{"score":16,"band":"cold","label":"Long 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