Publiée 3 juillet 2026
Senior Software Engineer Freelance (3-6 months contract)
Jus Mundi SAS
Paris, Île-de-France 75000, France
CDI
Join Jus Mundi - To Power Global Justice
Founded in 2019 and recognized as a mission-led company, Jus Mundi is pioneering legal technology to power global justice through artificial intelligence.
Headquartered in Paris, with additional offices in New York, London, and Singapore, Jus Mundi serves over 150,000 users, including top law firms, multinational corporations, government bodies, and academic institutions in more than 90 countries. By combining legal expertise with cutting-edge AI technology, we provide global legal intelligence, data-driven arbitration professional selection, and business development services.
What Makes Jus Mundi the Place to Be
About the Role
Jus Mundi is looking for talented developers to join their EPD team (Engineering, Product and Design) on a 3-month, up to 6-month contract basis, to help our team to face an increase of workload for this second half year.
This position is based in Paris with 2 mandatory days at the office.
This is the opportunity to join a team not only driven by the tech, but working all together to make the best product in our field. This is not only words on paper: our metrics are not the number of lines of codes, but the value delivered in prod.
Concretely, it means that developers are owner of the features they ship, and can structure them in partnership with the product team and the design team. Writing the code is only a part of this thriving mission where you directly contribute to the transformation of the legal industry.
The Team
EPD team is split into mission driven squads, and you will be joining one of these squads alongside with other talented developers, a Product Manager, and an Engineering Manager.
Squads are also working in close partnership with the Platform Team, bringing expertise on the more technical topics.
Your mission at Jus Mundi
As part of the Engineering Product and Design team, you will alternate between code writing and feature building. Every developer is regularly tech owner of an epic, meaning he follows every step of the feature, from design to Go To Market. Of course, you will not be alone into this journey, and you will be supported by the whole team at every step.
This is an incredible opportunity to challenge and shape the extraordinary product we are building, and measure the real impact of our work.
This position is for you if you are excited by challenges beyond the code, if you shine at building solutions to real problems, and if you are entertained by collaborative delivery rather by complex algorithms.
Preferred Experience and Skills
Our stack is mainly focused around php and Typescript, with some specialized workers written in Go for the data ingestion team. However, any significant experience in any other major language is accepted if you are willing to work with these languages.
You have a proven record of solution solving approach in a scale-up with at least 5 years of experience in such environment.
Our main and official language is English (oral and written), so you must be fluent in English.
Bonus points if:
Interview process
We're proud of our multicultural team representing 37 nationalities! To ensure smooth communication, please apply in English (CV + Application Form).
Please note that, due to the nature of the sector we operate in, the final step of our recruitment process include a background check.
Founded in 2019 and recognized as a mission-led company, Jus Mundi is pioneering legal technology to power global justice through artificial intelligence.
Headquartered in Paris, with additional offices in New York, London, and Singapore, Jus Mundi serves over 150,000 users, including top law firms, multinational corporations, government bodies, and academic institutions in more than 90 countries. By combining legal expertise with cutting-edge AI technology, we provide global legal intelligence, data-driven arbitration professional selection, and business development services.
What Makes Jus Mundi the Place to Be
- Our Values: With core values as Friendly, Committed, Explorative, and Excelsior, we cultivate a dynamic environment that encourages collaboration, innovation, and continuous growth.
- Legal Is the Next Frontier for GenAI: Legal is one of the top industries ready to be transformed by GenAI. At Jus Mundi, we're building transformative AI where it has the power to make the most impact.
- Proven Product Market Fit: Jus Mundi has secured product-market fit in global markets since launch, partnering with top-tier law firms, government bodies, and major corporations, including: Freshfields, Quinn Emanuel, Wong Partnership, Total Energies, Canada, UK, and Japan.
- Strategic Investment: We recently raised over $20 million in Series B funding from prominent strategic international investors, including Acton Capital, True Global Ventures, C4 Ventures, and FJ Labs, fueling our growth and innovation.
- Legal Meets Tech: Our engineers and former lawyers collaborate closely with large language models (LLMs) to pioneer the future of generative AI and reshape professional services.
- Exceptional Team: Work with talented professionals from industry leaders, including engineers, legal experts, and AI specialists from companies like Google and Amazon who are pushing the boundaries of legal tech.
About the Role
Jus Mundi is looking for talented developers to join their EPD team (Engineering, Product and Design) on a 3-month, up to 6-month contract basis, to help our team to face an increase of workload for this second half year.
This position is based in Paris with 2 mandatory days at the office.
This is the opportunity to join a team not only driven by the tech, but working all together to make the best product in our field. This is not only words on paper: our metrics are not the number of lines of codes, but the value delivered in prod.
Concretely, it means that developers are owner of the features they ship, and can structure them in partnership with the product team and the design team. Writing the code is only a part of this thriving mission where you directly contribute to the transformation of the legal industry.
The Team
EPD team is split into mission driven squads, and you will be joining one of these squads alongside with other talented developers, a Product Manager, and an Engineering Manager.
Squads are also working in close partnership with the Platform Team, bringing expertise on the more technical topics.
-
User Lifecycle & Growth Squad
This team pampers our users to ensure them a smooth experience across the whole product, driven by users retention, satisfaction and engagement.
They work on topics going from user experience improvement to dashboards creation, in close collaboration with care, marketing, and sales teams.
Your mission at Jus Mundi
As part of the Engineering Product and Design team, you will alternate between code writing and feature building. Every developer is regularly tech owner of an epic, meaning he follows every step of the feature, from design to Go To Market. Of course, you will not be alone into this journey, and you will be supported by the whole team at every step.
This is an incredible opportunity to challenge and shape the extraordinary product we are building, and measure the real impact of our work.
This position is for you if you are excited by challenges beyond the code, if you shine at building solutions to real problems, and if you are entertained by collaborative delivery rather by complex algorithms.
Preferred Experience and Skills
Our stack is mainly focused around php and Typescript, with some specialized workers written in Go for the data ingestion team. However, any significant experience in any other major language is accepted if you are willing to work with these languages.
You have a proven record of solution solving approach in a scale-up with at least 5 years of experience in such environment.
Our main and official language is English (oral and written), so you must be fluent in English.
Bonus points if:
- you already have experience in coaching junior developers;
- you understand French
Interview process
We're proud of our multicultural team representing 37 nationalities! To ensure smooth communication, please apply in English (CV + Application Form).
- Introductory Call with Laurine, Talent Manager (30 min)
- Remote Pair Programming Session (1h30)
- Product Interview with Matthieu, Engineering Manager, and one PM (1h)
Please note that, due to the nature of the sector we operate in, the final step of our recruitment process include a background check.
