Software Engineer
il y a 1 semaine
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 pleinWe'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 18 heures
Paris, Île-de-France Siemens EDA (Siemens Digital Industries Software) Temps pleinSiemens 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...
-
Senior C++ Software Engineer
il y a 1 semaine
Paris, Île-de-France IC Resources Temps pleinAn exciting opportunity for a Senior C++ Software Engineer has arisen with a rapidly growing AI company, based in Paris.This is a unique opportunity for a Senior C++ Software Engineer to help build and evolve a cutting-edge vision analytics system, with a strong focus on performance, efficiency, and next-generation hardware acceleration.You will commit to a...
-
AI Software Engineer
il y a 1 semaine
Paris, Île-de-France BCG X Temps pleinWho 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 RequireTech Resources Ltd Temps pleinMy Client in Paris, France is looking for a Senior Software Engineer.As a Senior Software Engineer, you will work closely with their Software engineers and field application engineers to deliver a powerful configuration and implementation tool for Network-on-Chip (NoC) systems.While no prior electronics experience is required, a background in this area is...
-
Senior Software Engineer
il y a 1 semaine
Paris, Île-de-France Skywaves Rise Temps pleinHiring Senior Software Engineer Paris, France | Onsite- 5 daysBuild. Deploy. Scale.Photon is looking for senior engineers who can take cloud & ML solutions from idea to production — directly with clients.You should have: 10+ years in Software / Infra / Applied ML Strong Python / TypeScript / JavaScript AWS | GCP | Azure + Kubernetes Production ML...
-
Software Engineer
il y a 24 heures
Paris, Île-de-France Sia Temps pleinSia est un groupe international de conseil en management de nouvelle génération, fondé en 1999. Nés à l'ère du digital, nous sommes augmentés par la data, enrichis par la créativité et guidés par la responsabilité. Nous collaborons avec nos clients pour relever les défis et saisir les opportunités. Dans un monde en pleine mutation, nous croyons...
-
Software engineer
il y a 1 semaine
Paris, Île-de-France Trekea Mobile Temps pleinExperienced 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 1 jour
Paris, Île-de-France Bizzdesign Temps pleinBizzdesign 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 innovation and global technology strategy.About BizzdesignBizzdesign is...
-
Senior Software Engineer
il y a 1 semaine
Paris, Île-de-France Artefact Temps pleinWho are we Artefact is a leading global consulting company dedicated to accelerating the adoption of data and AI to positively impact people and organizations. We specialize in data & AI transformation and data-driven marketing to drive tangible business results across the entire enterprise value chain. Artefact offers the most comprehensive set of...
