Senior Fullstack TypeScript Developer (Product Engineer)

Lemlist; Paris (TX); Remote; USD 73,000 - 84,000; Full time

Benefits offered by this job

Profit sharing

Paris office option

Medical coverage

Meal tickets

Navigo card

Remote work setup budget

MacBook Pro 48GB

Annual team retreat

Job summary

lemlist is seeking a Senior Fullstack TypeScript Developer to design and deliver features across our SaaS stack. You will lead technically, own features end-to-end, and mentor peers while tackling performance and scalability challenges.

This role is remote-friendly with a Paris-based option and requires strong TS/JS, Node.js, MongoDB expertise, plus French and English communication. You’ll join a fast-growing, bootstrapped SaaS company and contribute to products used across multiple industries,

Qualifications

• Expert in TypeScript/JavaScript with 7+ years of experience.
• Proven track record building web applications.
• Robust understanding of Node.js and MongoDB; React preferred.

Responsibilities

• Design and develop new features frontend and backend.
• Lead technically within your squad and set standards.
• Refactor code, fix bugs, and optimize performance.
• Work on multiple projects and support customer technical issues.
• Share knowledge and train teammates.

Skills

TypeScript/JavaScript

Node.js

MongoDB

React

Remote work

French & English

Agile

Communication

Ownership

Fast learner

Tools

Gather

Slack

Notion

Job description

About the company

the company 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 the company & Claap, generating $58M ARR and growing over 50% year over year
• Personal Branding with Taplio & Tweet Hunter, generating $4M ARR

the company 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 65K€ and 75K€ fixed salary
• Profit sharing: When lempire wins, all team members share the profits
• Where you live, and work is totally up to you – we do have an office in Paris if you enjoy life at the office
• 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