{"id":446987,"url":"https://alion.io/job/lemlist-technical-lead-fullstack-jsts","title":"Technical Lead - Fullstack JS/TS","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":98,"open_postings":10,"ghost_share":0,"stale_share":0.1,"repost_share":0,"time_to_fill_p50_days":47,"computed_at":"2026-10-25T05:49:26Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","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":["Lyon, France"],"countries":["FR"],"hiring_countries":["FR"],"hiring_countries_total":1,"salary":{"min":65000,"max":75000,"currency":"EUR","period":"year","gross":null,"usd_annual":84235},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"Node JS","optional":false},{"name":"React.js","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-07-13T13:50:30Z","employer_posted_date":"2026-07-13","last_verified_at":"2026-10-25T11:59:51Z","board_verified":true,"closed_at":null,"days_open":104,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":103},"description":"About lemlist\nlemlist is a global B2B SaaS business with one mission: help any business grow.\nWe’re doing $60M+ ARR, while being:\nBootstrapped & profitable, giving us freedom and independence\n\n170 people, remote-friendly, agile\n\nWe run two product lines:\nSales Engagement with lemlist & Claap ($56M ARR, growing +60% YoY)\n\nSocial selling with Taplio & Tweet Hunter ($4.5M ARR)\n\nOur ambition: become a world-class giant in Sales Tech.\nOur mantra: Keep growing.\nAbout the role\nWe’re looking for a Tech Lead or a Senior Fullstack TypeScript Developer to join our team.\nThe 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.\nYou’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.\nWhat you’ll do\nBuild new features end-to-end (frontend + backend) by working hand-in-hand with a strong Product team\n\nImprove the codebase (refactoring, bug fixes, optimization)\n\nCollaborate with the rest of the team to solve technical issues\n\nMentor fellow developers, share knowledge, and raise the bar\n\nStep up as Tech Lead in your squad: drive quality, make technical choices, and align delivery\n\nWhat success looks like\nWithin 3 months\nYou’re fully onboarded and comfortable in our stack\n\nYou’ve shipped meaningful features in production\n\nYou’ve contributed to improving our codebase\n\nWithin 6 months\nYou’ve led delivery of multiple successful projects\n\nYou’ve had direct impact on scalability & performance\n\nYou’ve grown into your Tech Lead role and mentor others\n\nWhat’s in it for you\nJoin a bootstrapped, profitable, fast-growing SaaS company\n\nBuild products used by thousands of businesses worldwide\n\nSee your impact quickly with a very short feedback loop\n\nWork with senior engineers who love to learn and share knowledge\n\nRemote-first culture (office in Paris if you prefer )\n\nNo endless meetings, high autonomy, big impact\n\nAbout you\nMust have\n8+ years in TypeScript / JavaScript (frontend + backend)\n\nSolid skills in Node.js, React, MongoDB\n\nProven track record building & maintaining web apps\n\nAlways hungry to learn more, particularly around JS/TS\n\nAutonomous, fast learner, and collaborative\n\nFluent in French & English, based in French timezone (+/- 2h)\n\nNice to have\nB2B SaaS startup experience\n\nYou worked on a SaaS that scaled massively\n\nYou are familiar with advanced performance optimization\n\nSelf-taught hacker or side-project builder\n\nPassionate about experimenting & creating beyond work\n\nPackage\n65 - 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