logo SELL&SIGN carré blanc

Java Backend Developer API Master #B2B #SaaS


Electronic Signature Application| SaaS | B2B | 18 employees

CDI long term contract, full time | Marseille

SELL&SIGN is the SaaS solution for intelligent electronic signatures. It is a French start-up created in 2014, French Tech certified.

SELL&SIGN already has many customers in France and abroad, in a wide variety of sectors (real estate, parapharmaceuticals, construction, e-commerce, insurance, energy renovation...).

SELL&SIGN is expanding our highly motivated team to continue offering the best market experience and accelerate our expansion. We are now 18 in the team and are looking for a Business Developer. As a true pillar of our business development, your mission will be to convince professionals to join us and to use THE essential solution to manage and organize their contractual activity and boost their business!

Some good reasons to join us

pink line sell&sign
  • The start-up spirit: a close-knit, eclectic and caring team that knows how to play as a team to meet new challenges
  • The product: a solution with real meaning and proven added value, that preserves the environment and the quality of life at work
  • Stimulating and innovative projects that give pride of place to the technologies and talents of each individual
  • Quick responsibilities and a strong autonomy on your domain
  • Friendly offices in the heart of Marseille on the Old Port
vieux port marseille sellandsign

Your role at SELL&SIGN

pink line sell&sign
  • Choice and integration of a possible API gateway to automate and standardize our public-facing APIs
  • Development and refactoring of our public-facing APIs
  • Development of our APIs with new product versions (there is some [very] hefty stuff coming)
  • Setting up automatic testing of APIs
  • API documentation
  • Development of SDK to consume the API in the main languages (Java, PHP, C#, Javascript)
  • Design and development of dev tools for partner developers
  • Pre-sales support for projects with high IPY integration content
  • Level 2 support and integration assistance for partner developers
  • Design and supervision of connector integration projects with third party tools


pink line sell&sign
bureau sellandsign
  • Attractive salary and bonuses
  • Full-time permanent contract
  • Coverage of 50% of the cost of transportation tickets, company mutual insurance
  • Remote friendly, working from home is possible
  • Opportunities for internal development
  • Stock option plan

Your profile

pink line sell&sign

At SELL&SIGN, we are primarily looking for team players, people with excellent interpersonal skills and a strong sense of organisation. You want to live an exciting and intense human adventure and work with talented people? Motivation, autonomy, curiosity and humour are essential! Here are the prerequisites:

  • A true passion for software development. Our founders started coding when they were 9 years old, what about you?
  • You know web programming and the notion of API, you make the difference between a good API and a bad API
  • You master the main authentification/SSO protocols: OAuth, SAML, etc.
  • Ideally you have a first operational experience with a Gateway API
  • Excellent command of French, both written and spoken
  • Proficiency in written English
  • Positive, and you communicate effectively with the team
  • Organized and proactive, nothing makes you happier than committing to a good project and coming up with new ideas

Qualifications required

pink line sell&sign
  • Ideally from a higher education background in software development (but accomplished self-taught accepted)
  • Perfect mastery of the Java backend language and SQL databases (Postgresql)
  • You have at least 3 years experience in backend software development in production
  • Ideally, you have a proven track record in creating or managing REST APIs and securing them
  • Experience with AWS tools is a plus

Interview process

pink line sell&sign
  • Technical test
  • 15 min pre-qualification call with the CTO
  • First interview (web meeting or physical) with Seb, the CTO
  • Final interview with Alex, the CEO
  • Team Meeting

Your integration

pink line sell&sign

Be guided by the song of the seagulls to find us in Marseille, the Vieux-Port metro exit.
All good onboarding starts with a coffee or tea and a big smile. Then, once the presentations are made with the Team:

  • You will discover the SELL&SIGN universe in its entirety and the tools of the trade
  • Then, you will move on to the more serious stuff by discovering the product and its specificities
  • Get your swimsuit because you'll be in a total immersion phase. With Seb, you'll dive into the software architecture and Cloud infrastructure
  • You’ll write your first impressions at the end of your integration so we can hear your feedback
onboarding sellandsign

Java Backend Developer - Master API #B2B #SaaS

CDI Full time | Marseille | Start date: ASAP | Experience: 3 years minimum | Attractive salary and bonuses  |  Remote friendly