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Senior Fullstack TS Developer (backend-oriented)

LemlistParis, FranceFull-timeSalary not listed · Typical pay in FrancePosted Nov 5, 2026

Lemlist is hiring for the position of Senior Fullstack TS Developer (backend-oriented) in Paris, France. The listing describes it as a full-time, senior position.

Written by Dev Global Jobs

DGJ summary of this job

Our own short read of this listing, built only from the facts it gives. The employer’s original text follows further down.

Lemlist is hiring for the position of Senior Fullstack TS Developer (backend-oriented) in Paris, France. The listing describes it as a full-time, senior position.

From the advert, the main requirements are French and English language skills.

The advert mentions JavaScript, TypeScript, MongoDB, Agile, B2B and SaaS among the skills and tools for this role.

The employer does not state a salary in this listing; DGJ Insight below shows an official pay benchmark for the place where one exists.

Benefits mentioned in the advert: health insurance.

Visa sponsorship is not mentioned. Applicants from outside France should check the official work permit route before applying.

Dev Global Jobs found this job on Arbeitnow on Nov 5, 2026.

Employer
Lemlist
Location
Paris, France
Job type
Full-time
Level (from the title)
senior
Pay
Not stated by the employer
Languages asked
French and English
Found
Nov 5, 2026 on Arbeitnow
Employer text
683 words, about 3 min to read
Skills named in the advert
JavaScriptTypeScriptMongoDBAgileB2BSaaS
Before you apply
  • Apply only on the official page (arbeitnow.fr). Dev Global Jobs is not the employer and never asks for a fee.
  • Mirror the skills the advert names (JavaScript, TypeScript, MongoDB and Agile) in your CV where you really have them; applicant tracking systems look for these words.
  • Say your level in French and English plainly (for example B2 or C1).
  • Read the employer’s full text below (about 3 min) before you apply.
  • Build or check your CV with the free DGJ CV Builder.
Only on Dev Global Jobs

DGJ Insight

Our own data about this role and place, from official statistics and our live job index.

Updated Nov 5, 2026
Pay benchmark
Average wage, France
EUR 44,304 average / year

Source: OECD Average annual wages, 2025

Cost of living · Paris
85.7 vs New York = 100

UN living-cost index for Paris (ICSC post adjustment 50.5), as of 1 Oct 2026.

Source: ICSC post adjustment classifications (icsc.un.org)

Work permit route
  • Talent Passport: Qualified employees, researchers, artists, investors; multi-year permit
  • Employee (salariĂ©) visa: Employer work authorisation from the labour office
  • Temporary worker visa: Contracts under 12 months
Job description

About the role

Full text from the employer, as published on Arbeitnow, arranged into sections. Nothing added or removed.

01About us 👇🏼

lemlist is the sales engagement platform that gives sales teams the unfair advantage they deserve. Bootstrapped since day one, we’ve grown from 0 to $60M ARR in 8 years, without raising a single dollar. Today, we’re a profitable B2B SaaS company valued at $150M+, trusted by 40,000+ sales teams worldwide to book more meetings and close more deals.

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. You will be using Node.js a lot.

02Your 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.

  • 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.

03Key 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.

04Preferred experience

  • Must have

  • You’re an expert in TypeScript / Javascript with at least 5 years of XP

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

  • You have a robust understanding of NodeJS and MongoDB

  • 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, customer support, 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

05Additional 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 just want you to be in a timezone close to ours (France +/- 3 hours)

  • 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 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 ;)

06Recruitment 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

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