lemlist.com
7 open TypeScript positions
Open Positions
Senior AI Engineer
lemlist is seeking a hands-on Senior AI Engineer to define and build the future AI architecture for their Sales Engagement Platform. Key responsibilities include designing agentic systems using LangGraph/custom frameworks, implementing autonomous AI variable loops, and delivering the initial version of their AI Copilot. This role demands strong software engineering background, real production AI experience, and ownership over technical direction to ensure scalability and observability of AI features.
Senior Frontend (React /Node.js) Developer- Full Remote
lemlist is seeking a Senior Fullstack TypeScript Developer to design and develop new features for their B2B SaaS products, with complexity often leaning towards the frontend using React and Node.js. Key responsibilities include independent development, code refactoring, optimizing existing code, and contributing to the React migration. The role emphasizes autonomy, technical challenges, and knowledge sharing within a high-growth, profitable, fully remote company.
Staff Engineer - Full-Stack Js/ts
The company is seeking a Staff Engineer to design, build, and ship features across both frontend and backend systems, while improving overall performance. Key responsibilities include building features end-to-end, mentoring peers, leading technical direction on specific topics, and solving complex problems impacting customers. Success involves rapid onboarding, shipping meaningful features, and growing into a technical reference point within 12 months.
Full-Stack Developer Taplio & Tweethunter
The role is for a Fullstack Developer focused on fixing, cleaning, and improving the Taplio & Tweet Hunter products by refactoring messy code and building new features. Key responsibilities include refactoring TypeScript/Node.js/React/Next.js/GCP codebase, identifying and fixing bugs, and improving performance. Candidates must have 3+ years of experience, strong TypeScript skills, and the ability to see the big picture.
Tech Lead / Engineering Manager - Full-Stack Js/ts
This role begins as a Senior Fullstack TypeScript Developer, transitioning into a Tech Lead position within 3-6 months, focusing on designing, building, and shipping features across the stack. Key responsibilities include improving the codebase, setting technical standards, and mentoring peers. The company is a bootstrapped, profitable B2B SaaS business aiming for rapid growth in the Sales Tech sector.
Senior Full-Stack Ts Developer (Backend-oriented)
The role involves being a Senior Fullstack TypeScript Developer with a backend focus, responsible for designing and developing new features for a B2B SaaS platform primarily using Node.js. Key missions include designing and developing features from scratch, improving the codebase through refactoring, and facilitating knowledge sharing within the team. This position requires someone passionate, autonomous, and comfortable working independently on complex projects within an agile framework.
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Senior Full-Stack TypeScript Developer (product Engineer)
The company is seeking a Senior Fullstack TypeScript Developer to design and develop new features for their B2B SaaS products. Key responsibilities include independent feature development across frontend and backend, stepping into a technical lead role within a squad, and optimizing the codebase. The role requires deep technical expertise and is situated in a profitable, bootstrapped, high-growth, fully remote environment.