ABOUT LEMLIST
lemlist is a global B2B SaaS business with one mission: help any business grow.
We’re doing $60M+ ARR, while being:
– Bootstrapped & profitable, giving us freedom and independence
– 170 people, remote-friendly, agile
We run two product lines:
– Sales Engagement with lemlist & Claap ($56M ARR, growing +60% YoY)
– Social selling with Taplio & Tweet Hunter ($4.5M ARR)
Our ambition: become a world-class giant in Sales Tech.
Our mantra: Keep growing.
ABOUT THE ROLE
We’re looking for a Tech Lead or a Senior Fullstack TypeScript Developer to join our team.
The 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.
You’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.
WHAT YOU’LL DO
– Build new features end-to-end (frontend + backend) by working hand-in-hand with a strong Product team
– Improve the codebase (refactoring, bug fixes, optimization)
– Collaborate with the rest of the team to solve technical issues
– Mentor fellow developers, share knowledge, and raise the bar
– Step up as Tech Lead in your squad: drive quality, make technical choices, and align delivery
WHAT SUCCESS LOOKS LIKE
Within 3 months
– You’re fully onboarded and comfortable in our stack
– You’ve shipped meaningful features in production
– You’ve contributed to improving our codebase
Within 6 months
– You’ve led delivery of multiple successful projects
– You’ve had direct impact on scalability & performance
– You’ve grown into your Tech Lead role and mentor others
WHAT’S IN IT FOR YOU
– 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
ABOUT YOU
Must have
– 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
– You worked on a SaaS that scaled massively
– You are familiar with advanced performance optimization
– Self-taught hacker or side-project builder
– Passionate about experimenting & creating beyond work
PACKAGE
– 65 – 75K€ fixed + 18K€ bonus
– Profit sharing: when lemlist wins, you win too
– Full perks: 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
RECRUITMENT PROCESS
1. Interview with Lucas (TAM)
2. Technical interview with Corentin (VP of Engineering)
3. Technical interview with Mickael (CTO)
4. Final chat with Charles (CEO)
€60k - €75k per annum
...meetings and close more deals. We’re looking for a Senior Fullstack TypeScript Developer to join our team. You’ll be... ...need someone who is passionate, autonomous, and loves technical challenges. You will be using Node.js a lot. Your main missions will be: – Design and...Full StackJavascriptFull-timeRemoteWeekend workAfternoon shift- £49k - £65k per annumEstimated...are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As an Intermediate Fullstack Engineer (Ruby/Vue. js), Growth at GitLab, you'll help turn GitLab's self-serve funnel into a reliable source of new paying customers. You'll work...Full StackJavascriptFull-time
- £64k - £87k per annumEstimated..., and reliable systems while solving complex technical challenges across decentralized ecosystems. This... ...impactful Web3 products. Accountabilities - Lead end-to-end full stack development across React-based user interfaces, Node. js backend services, and Web3 integrations. -...Full StackJavascriptFull-time
$90k per annum
...scaling data-intensive systems, solving production problems, and making technical decisions with substantial autonomy. What you’ll do Own full stack development across React interfaces, Node.js services, and Web3 integrations. Build and scale decentralized applications...Full StackJavascriptFull-timeRemoteFlexible hoursG2i
Remote4 days ago- £63k - £82k per annumEstimated...partner is looking for a Senior Fullstack Developer (m/w/d) - Claude... ...infrastructure evaluation, and long-term technical planning. Working alongside an... ...: You will take a leading technical role in preparing the... ...APIs using TypeScript, Node. js, and Express. - Build and manage...Full StackJavascriptLong-term contractFull-time
$80 - $150 per hour
...Job Application for SWE Infrastructure Specialist (JS/TS/Python) – Freelance AI Trainer Project at Meridial Back to jobs SWE Infrastructure... ...in computer science, software engineering, or a closely related technical field is ideal. Real-world experience in cloud platforms,...JavascriptHourly payPart-timeFreelanceRemoteInvisible Technologies
Remote27 days ago- £67k - £89k per annumEstimated...backend engineering expertise with frontend development using Vue. js or React and TypeScript. You will collaborate closely with... ...fully remote independent contractor opportunity offers significant technical ownership, a product-led environment, and the chance to make a measurable...Full StackJavascriptLong-term contractFull-timeRemote
£90k - £100k per annum
Be part of the football gaming revolution. You would join an early stage startup who are building games for the billions of fans Football has around the world. Backed by top investors and with a senior team who have done conception to exit multiple times, this really is an...Full StackJavascriptRemote jobPermanent- £62k - £81k per annumEstimated...partner is looking for a Senior Software Engineer (Laravel | Next. js | PostgreSQL) based in United Kingdom. Join an established... ...Next. js, React, and TypeScript. You will contribute to complex technical initiatives, including database migration, API integrations, and...Full StackJavascriptFull-time
- £70k - £91k per annumEstimated...aligned to organisational priorities. Key Responsibilities Technical Leadership Lead the design, development, and delivery of scalable full-stack... ...cloud-native applications using TypeScript and Node.js . Strong understanding of full-stack software development...Full StackJavascript
€120k per annum
...experienced ‘hands-on’ Staff Enginee r to provide technical leadership across a modern advertising... ...AdTech platform. You’ll be the technical lead across multiple engineering teams, helping... ...scalable microservices using Node.js and TypeScript. Building modern frontend...Full StackJavascriptRemote jobPermanent- £59k - £78k per annumEstimated...will develop and scale applications using F#, ASP. NET Core, React. js, and TypeScript, with opportunities to influence both... ...building reliable, scalable product features while contributing to technical decisions and continuous improvement across the development lifecycle...Full StackJavascriptLong-term contractFull-timeOn-site
- £65k - £89k per annumEstimated...developer infrastructure company and the leading provider of API access for agents and apps... ...roadmap with high ownership of product and technical decisions. – Engage with the open-source... ...across the stack in TypeScript, from Node.js services to React frontends. – A...Full StackJavascriptFull-timeRemote
- £55k - £73k per annumEstimated...improvements to upstream dependencies where appropriate. - Resolve technical issues: Address escalated support cases, investigate underlying... ...years of backend engineering experience , including operating Node. js applications in production environments. - Experience designing,...Full StackJavascriptFull-time
- ...pay Required Skills Python JavaScript JAVA Node.js Full - Stack Code Review Technical Documentation Software Architecture About micro1 micro1 is a data lab that helps AI labs & Enterprises train foundational models and agents. We provide frontier...Full StackJavascriptLong-term contractPart-timeRemote
micro1
Remote16 days ago - £80k - £104k per annumEstimated...ownership of product features from initial customer discovery and technical design through implementation, deployment, and continuous... ...the ability to work confidently across the stack, including Node. js backend services and React-based frontend applications. - Demonstrated...Full StackJavascriptFull-timeRemote
$140k - $185k per annum
...software Contribute to engineering standards through code reviews, technical discussion, and better defaults What You’ll Bring ~5+ years... ...~ Deep TypeScript expertise, with strong React and Next.js experience building modern, responsive web applications ~ Comfort...Full StackJavascriptFull-time- ...Stanford, MIT, UC Berkeley, CMU, and IITs. We are backed by industry leading investors including Accel, Naspers/Prosus, Creaegis, Section32,... ...communication between the front-end and server using technologies like Node. js or Python. - Build, test, and deploy full-stack web applications...Full StackJavascriptFull-time
$55 - $100 per hour
...web stack — JavaScript, TypeScript, Java backend services, and Node.js APIs — assessing correctness, security, maintainability, and... ...accurately. Annotators who've done code review as part of a senior or lead engineering role tend to calibrate well for this work. Skills &...Full StackJavascriptClaru
Remote23 days ago- ...Python React JavaScript JAVA Node.js Rust GoLang Typescript About micro1 micro1 is the leading AI data lab for training frontier models and evaluating... ...project involving software development, technical problem-solving, debugging, system architecture...Full StackJavascriptPart-timeImmediate startRemoteFlexible hours
micro1
Remote28 days ago $70 - $150 per hour
...flag unclear instructions What this covers This pool spans software engineering, including: Frontend (React, TypeScript, Next.js); backend (Java, Go, Node.js); full-stack Mobile (Android, iOS); embedded and IoT DevOps and platform engineering; systems and performance...Full StackJavascriptOdd jobPart-timeMercor
Remotea month ago£54k - £60k per annum
...award-winning SaaS scale-up. Vue/React, lead a small talented front-end team. Exeter... ...modern JavaScript frameworks (e.g., Vue.js, React, or Angular), happy to work with Vue... ...experience, and ensuring design consistency and technical excellence across the product suite. You’...JavascriptRemote jobPermanentHybrid workingOn-site- ...manager, designer, and up to 4-5 other engineers, including a tech lead Using agile software development practices and a product... ...Languages: Python, JavaScript, and TypeScript Frameworks: Vue.js, Django Rest Framework, Container-based and Serverless architectures...Full StackJavascriptPart-timeRemote
Prolific
Remote7 days ago - £48k - £65k per annumEstimated...end Development: Build dynamic user interfaces with React 19, Next.js (App Router), TypeScript and Material UI, with SignalR for real-... ...a stable codebase. Documentation: Produce clear and concise technical documentation for development processes, APIs, and system architecture...Full StackJavascriptRemote jobLong-term contractPermanentFull-timeWork from home
- £66k - £85k per annumEstimated...others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth... ...anyone to become a leader by showing excellent technical skills and delivering results consistently... ...marketers, and PMs Tech Stack: Vanilla JS, ReactJS, Redux, Firebase, Typescript...JavascriptRemote jobOn-site
£60k - £67.5k per annum
...development using TypeScript, React, Next.js and Node.js. We’re looking for a Senior... ...scalable platforms while helping to shape technical direction across multiple projects. This is... ...As a Senior Full-Stack Engineer, you’ll lead the design and development of modern web applications...Full StackJavascriptRemote jobPermanentOn-site- £70k - £90k per annumEstimated...visionary AI systems Solutions Architect to lead the convergence of composable enterprise... ...Foundations: Lead full-stack architecture and technical feasibility for composable, edge-rendered... ...hosting environments (Vercel, Next.js, or modern cloud primitives). Deep experience...Full StackJavascriptRemote jobFull-time
£60k - £80k per annum
...reliability and user experience. Contribute to AI product strategy and technical roadmap discussions. Help establish engineering best practices... ...with some or all of the following is beneficial: Next.js Python Node.js PyTorch OpenAI, Anthropic and open-...Full StackJavascriptRemote jobFull-timeHybrid working$200k - $250k per annum
...opportunity to work directly with frontier AI companies, making critical technical decisions that balance scrappy startup execution with scalable,... ...use Django & Fast API) TypeScript and JavaScript (we use Vue.js) SQL and NoSQL databases (we use MongoDB and PostgresSQL)...Full StackJavascriptFull-timePart-timeHybrid workingOn-siteRemoteProlific
Remote27 days ago$60 per hour
...engineering, preferably in roles involving code review, mentoring, or technical design discussions. Significant experience using LLMs or AI... ...one major frontend framework (such as React, Angular, or Vue.js) or backend runtime (such as Node.js with Express or NestJS)....JavascriptHourly payImmediate startRemoteSuperAnnotate
Remote24 days ago
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Technical Lead - Fullstack JS/TS. Be the first to apply!
- technical lead Remote
- tech lead Remote
- technical lead - java/kotlin - Remote
- front end developer html css javascript Remote
- freelance javascript Remote
- javascript Remote
- java full stack developer with node js Remote
- junior full stack developer c# .net javascript Remote
- php technical lead
- senior IT engineer technical lead