Software Engineer
il y a 2 semaines
LexiFi is looking for a full-time Software Engineer to join its core development team.
Software Engineer (OCaml) — Paris, France
LexiFi is a leading software provider in the financial derivatives and structured products market. Our solutions are used worldwide by investment banks, private banks, asset managers, insurance firms, and fintech companies. We empower users with tools to create, price, and manage complex financial products — and we also offer our technology as software libraries integrated by partners and service providers globally.
We're growing our core development team at our Paris headquarters (8th arrondissement). You'll help design and build frontend and backend features, infrastructure components, and internal tooling — almost entirely in OCaml, a language we actively contribute to. As LexiFi expands its cloud-hosted offerings, you'll also collaborate on deployment and reliability topics alongside our DevOps engineers. You'll join an international, collaborative environment that values engineering excellence — we invest heavily in R&D and code quality, making this a great place to craft beautiful, reliable software.
What You'll Do- Build and evolve core products — Implement new features across the stack (UI, APIs, services) in OCaml.
- Design reliable backend components — Develop services and libraries that power complex financial workflows.
- Raise the bar on code quality — Improve testing, performance, and developer experience.
- Collaborate with quantitative engineers — Partner with our math-finance team on models, pricing engines, and data pipelines.
- Work closely with client-facing teams — Shape solutions with sales, support, and partners; occasionally join client conversations.
- Support cloud-hosted projects — Contribute to deployment, instrumentation, and operational excellence.
- Strong software engineering experience (professional or significant open-source work).
- Solid foundations in algorithms, data structures, and software design.
- Collaborative mindset, clear communication, and a problem-solving approach.
- Bonus points for:
- Exposure to OCaml or functional programming.
- Exposure to cloud or DevOps practices.
- Interest or experience in financial markets.
- A degree in computer science, mathematics, or related fields.
- This is a full-time role based in Paris (8th arrondissement) at LexiFi's headquarters.
- Hybrid work model — up to 2 remote days per week, with flexibility in choosing which days.
- Join a fintech company at the intersection of finance and software engineering.
- Work with a team that invests heavily in R&D and code quality.
- Build across a broad technical spectrum with direct impact on core products.
- Build products trusted by global leaders in finance and tech, across America, Asia and Europe.
- Be part of a collaborative, high-caliber engineering culture that values learning, initiative, and flexibility.
- The first company to adopt OCaml (in 2001) — and we've since helped partners adopt it too.
- Active in the OCaml maintainers team, the Dune development team, and the broader OCaml OSS ecosystem — see our work.
- Founding member of the OCaml Consortium and the OCaml Software Foundation.
- Regular sponsor of OCaml-related conferences and community events.
Interested? Send your resume and a short motivation letter to We look forward to hearing from you
-
Senior Software Engineer
il y a 2 semaines
Paris, Île-de-France CAST Software Inc. Temps plein 80 000 € - 120 000 € par anWe're developing innovative solutions that leverage our Software Intelligence products (CAST Highlight and CAST Imaging) to enhance AI's capabilities in software engineering contexts.As a Senior Software Engineer on this initiative, you will:Design and implement integrations between our Software Intelligence products and modern LLM frameworksDevelop APIs and...
-
Software Development Engineer
il y a 4 jours
Paris, Île-de-France Siemens EDA (Siemens Digital Industries Software) Temps plein 60 000 € - 100 000 € par anSiemens EDA is a global technology leader in Electronic Design Automation software. Our software tools enable companies around the world to develop highly innovative electronic products faster and more cost-effectively. Our customers use our tools to push the boundaries of technology and physics to deliver better products in the increasingly complex world of...
-
EDA Software Engineer
il y a 2 semaines
Paris, Île-de-France IC Resources Temps plein 80 000 € - 120 000 € par anAn exciting opportunity for an EDA Software Development Engineer has arisen with a global leader in System-on-Chip (SoC) interconnect IP, based in Paris.As an EDA Software Development Engineer, you will play a key role in advancing their Magillem product line, ensuring scalability, modularity, and high performance for complex semiconductor design...
-
AI Software Engineer
il y a 2 semaines
Paris, Île-de-France BCG X Temps plein 110 000 $US - 225 400 $US par anWho We AreBoston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities. BCG was the pioneer in business strategy when it was founded in 1963. Today, we help clients with total transformation-inspiring complex change, enabling organizations to grow, building...
-
Senior Software Engineer
il y a 1 semaine
Paris, Île-de-France Cerberus Temps plein 90 000 € - 120 000 € par anCerberusis an AI Guardian platform that enhances engineering efficiency. By leveraging specialized AI agents, we automate code reviews, test generation, and documentation, ensuring neural precision through fine-tuning unique models for individual repositories. The outcome is elite code quality with zero maintenance effort.Role DescriptionThis is a full-time...
-
Software engineer
il y a 2 semaines
Paris, Île-de-France Trekea Mobile Temps plein 60 000 € - 100 000 € par anExperienced Software Engineer – Aspiring Team Lead - Aviation DomainNo. of Position :1Mode -Full TimeLocation -34 avenue des Champs-Elysées, 75008 – Paris, Île-de-FranceAbout us :We design and market FieldLogs, a leading Cloud, Mobile platform that supports enterprise technicians in fields like Aviation, Oil & Gas, and Asset Management. We are based in...
-
Senior Software Engineer
il y a 4 jours
Paris, Île-de-France Bizzdesign Temps pleinAre you ready to grow your career with a global technology leader?Bizzdesign is looking for a highly skilled Senior Software Engineer to join our international Engineering team. This role is designed for an experienced software professional capable of designing, developing, and scaling complex enterprise SaaS applications while contributing to product...
-
Software Engineer Fullstack
il y a 1 semaine
Paris, Île-de-France Theodo Temps plein 60 000 € - 90 000 € par anL'histoire du groupe Theodo et son succès Le groupe Theodo accompagne depuis 2009 les entreprises innovantes dans la conception, le développement et le déploiement de produits digitaux ingénieux, en tirant parti du meilleur de la technologie et de l'approche Lean. Notre approche unique est fondée sur 3 principes : - nous avons développé des expertises...
-
Software Engineer
il y a 2 semaines
Paris, Île-de-France Audensiel Temps plein 40 000 € - 80 000 € par anPostuler Paris, France Type contrat Full time Rémunération Sur demande Présentation de l'entrepriseA multi-specialist player in digital transformation, business consulting and technology consulting, Audensiel supports its clients in all sectors of activity in France and internationally in the following areas:- Digital: digital transformation projects,...
-
Software Engineer
il y a 4 jours
Paris, Île-de-France Astemo Temps plein 40 000 € - 80 000 € par anReady to contribute to the future of the automotive industry ?We are Astemo, focusing on world-leading advanced mobility solutions within the fields of electrification, autonomous driving, and connectivity to help reduce environmental damage, decrease traffic accidents, and improve comfort. Together, we contribute to a sustainable society and improved...
