DevOps / Cloud Infrastructure Engineer

LexiFi is looking for a full-time DevOps / Cloud Infrastructure Engineer to join its tech team.

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.

To support our growing infrastructure and tooling needs, we’re hiring a DevOps Engineer to join us at our Paris headquarters (8th arrondissement) . In this role, you’ll play a central part in scaling and securing the backbone of our platform — driving improvements in cloud infrastructure , CI/CD pipelines , and observability . You’ll have real ownership, with the autonomy to help define our DevOps roadmap , recommend and implement new tools , and influence key architectural decisions . You’ll collaborate closely with our OCaml-focused development team and help build internal tooling primarily in Python .

What You’ll Do

• Develop and maintain DevOps tooling — Automate infrastructure tasks, deployment workflows, and internal tools, primarily using Python .
• Administer and evolve our cloud infrastructure , including core AWS services like EC2, S3, IAM, and more.
• Maintain and improve our CI/CD pipelines , based on Jenkins , ensuring speed and reliability.
• Enhance observability — Improve and manage monitoring and alerting systems to ensure performance and uptime.
• Support the development team — Assist with automation, environment setup, and deployment workflows. Familiarity with OCaml is a plus, but not required initially.
• Champion DevOps best practices — Design secure, resilient, and well-documented infrastructure (secret management, backups, access control, etc.) while contributing to our SOC 2 Type 2 compliance efforts .

What You Bring

• Strong experience with Python scripting for DevOps and automation.
• Hands-on expertise with AWS services and cloud-based infrastructure.
• Experience operating and optimizing CI/CD systems , especially Jenkins .
• Familiarity with monitoring and log management tools.
• Knowledge of Docker and containerization practices.
• Exposure to or interest in OCaml .

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 deep-tech company at the intersection of finance and software engineering . Work in a team of highly skilled developers and infrastructure engineers. Help us shape and grow our DevOps culture as we modernize our infrastructure. Contribute to a product used by global leaders in finance and tech. We foster a collaborative work culture that values technical excellence , code quality , and intellectual curiosity , encouraging team members to continuously learn and contribute ideas.

Interested? Send your resume and a short motivation letter to We look forward to hearing from you!