Senior Fullstack TypeScript Developer (Product Engineer)

lemlist; Nantes; Hybride; EUR 60 000 - 70 000; Plein temps

Avantages offerts par ce poste

Full remote policy

Profit sharing

Premium medical coverage for you and 家

Swile meal tickets

Navigo card fully covered

Home office budget

48GB MacBook Pro + gear

Annual team meetup

Résumé du poste

lemlist, a fast-growing global B2B SaaS, is seeking a Senior Fullstack TypeScript Developer to design and build features across frontend and backend.

You will own technical standards, mentor teammates, and work autonomously in a remote-friendly setup with a Paris office option.

Fluency in French and English, 7+ years in TS/JS, NodeJS, MongoDB, and React are preferred, with a focus on scalable web apps.

Qualifications

• Must have TypeScript/JavaScript with 7+ years of experience.
• Proven track record building and maintaining web apps.
• Strong NodeJS and MongoDB, plus React experience.
• Able to work independently and own complex projects.
• Fast learner with agile mindset and good communication.
• Fluent in French and English; work in French time zone.

Responsabilités

• Design and develop new features on frontend and backend.
• Take technical lead within your squad and set standards.
• Refactor code, fix bugs, optimize performance.
• Handle multiple projects simultaneously.
• Assist customer support with technical issues.
• Mentor developers and share knowledge.

Connaissances

TypeScript

JavaScript

NodeJS

MongoDB

React

French language

English language

Outils

Gather

Slack

Notion

Description du poste

About lemlist

lemlist is a global B2B SaaS business with the mission to help any business grow.

We are doing over $54M in ARR while being:

• Bootstrapped


• Profitable


• A small, agile team of 170 highly talented people, remote-friendly


• Majority owned by an entrepreneur, Guillaume Moubeche, Founder & Chairman — which gives us maximum freedom

We operate 2 business lines:

• Sales Engagement with our flagship products lemlist & Claap, generating $49.5M ARR and growing over 50% year over year


• Personal Branding with Taplio & Tweet Hunter, generating $4.5M ARR

lemlist is a highly ambitious company that aims to become a world-class giant in the Sales Tech space.

Our mantra: Keep growing – and we live by it every day.

Job Description

We'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.

Your main missions will be:

• Design and develop new features from scratch, both on the frontend and backend, Independently developing new features that enhance user experience and increase product functionality.


• Stepping into the role of technical lead within your squad, driving excellence and setting standards.


• Improve the code base with refactoring, bug fixes, and optimization


• Work on multiple projects simultaneously


• Help the customer support team on technical issues, providing prompt and effective solutions


• 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, and high-growth company that doesn’t rely on external funding to live.


• 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

• You’re an expert in TypeScript / JavaScript with at least 7 years of XP


• You have a proven track record in building and maintaining web applications.


• You have a robust understanding of NodeJS and MongoDB, and ideally React


• You’re able to work independently and take ownership of complex projects


• You’re a fast learner


• You’re comfortable with the agile methodologies


• You like to communicate


• You like to work remotely, Gather, Slack and Notion are your best friends


• You 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


• You speak French and English and you are in the French timezone

Nice to have

• You have a first experience in B2B SaaS startup


• You 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

Additional Information

• Salary between 60K€ and 70K€ fixed salary + 18K€ bonus


• Where you live, and work is totally up to you – we do have an office in Paris if you enjoy life at the office


• Profit sharing: When lemlist wins, all team members share the profits


• Alan Blue: Comprehensive 100% premium medical coverage for you and your family


• Swile Meal Tickets: Enjoy daily meal tickets to fuel productivity


• Navigo Card: Seamless commuting with a 100% covered Navigo card


• Full-remote Work Setup: A well-funded home office budget to ensure seamless remote work


• Gear: Get a 48GB Macbook Pro + tools and equipment you need for your job


• Team building: We all meet once per year at really cool places around the world (you can check our video here ;)

Recruitment process

• Interview with Lucas our TAM


• Technical interview with Corentin, our VP of Engineering


• Technical Interview with Mickael, our CTO


• Interview with Charles, our CEO