Staff Engineer

Jus Mundi, founded in 2019, is a mission‑led legal technology company in Paris with offices in New York, London and Singapore. We serve over 150,000 users in more than 90 countries.

About the Role

Staff Engineer – responsible for shaping and sustaining a resilient, secure and scalable platform that powers our engineering organization. The role combines strategic technical leadership with hands‑on engineering work.

Responsibilities

• Drive architectural decisions and technical strategy across multiple teams and domains, focusing on product outcomes and user impact.
• Design and evolve fault‑tolerant, scalable distributed systems.
• Guide teams toward sound architectural decisions and coordinate initiatives across multiple squads.
• Partner with Product and Engineering leaders to balance technical trade‑offs with business value.
• Tackle essential work such as stack upgrades (PHP, Symfony) and technical migrations.
• Write production code across different domains and rapidly context‑switch between technical subjects.
• Resolve crisis situations such as critical infrastructure incidents.
• Lead the implementation of the new engineering framework (priority #1).
• Define and enforce engineering standards related to reliability, security, testing and deployment.
• Lead the transition toward fully automated, self‑healing and immutable infrastructure.
• Drive platform‑wide initiatives that improve developer productivity, system reliability and end‑user experience.

Qualifications

• 10+ years of professional experience in software engineering and cloud infrastructure management.
• At least 3 years in senior or staff‑level technical leadership roles.
• Strong track record of leading complex technical projects without direct managerial authority.
• Senior software engineering experience with PHP and Symfony.
• Solid experience with Node.js; Nuxt experience is a plus.
• Strong DevOps expertise: Kubernetes, Infrastructure as Code, CI/CD, observability.
• Experience designing, scaling and operating fault‑tolerant distributed systems.
• Ability to work across multiple programming languages and contexts.
• Deep expertise in system design and distributed systems architecture.
• Proven ability to make and communicate clear technical trade‑offs.
• Orchestration of complex technical transitions across multiple teams.
• Crisis management experience and composure under pressure.
• Strong opinions with ability to advocate while driving consensus.
• Excellent written and verbal communication skills in English (fluent required).
• Strong product mindset with ability to understand business context and user needs.
• Ability to evolve in a fast‑changing environment, reevaluating priorities to deliver the right impact.
• Bonus: Experience in SaaS or AI‑powered platforms, security engineering, large‑scale platform engineering or legal tech.

Benefits

• Hybrid working arrangement: two on‑site days and flexible remote work.
• Five weeks of vacation each year, with flexible scheduling.
• 100% coverage of private health insurance for employee and children.
• 60% company‑funded restaurant vouchers for weekday meals.
• Company‑wide summits (JM Fest) to connect and inspire.
• Co‑financed ClassPass membership for fitness and wellness activities.
• Flexibility to work remotely from anywhere for up to eight weeks a year.
• Relocation assistance for moving to France.
• Commitment to building a warm, inclusive, and diverse environment.

At Jus Mundi, we believe that diversity, equity, and inclusion are key to our success. Confidence can sometimes hold us back from applying for a job, but we’ll let you in on a secret: there’s no such thing as a ‘perfect’ candidate. We celebrate diverse backgrounds, experiences, and identities, and we encourage you to apply regardless of how you identify. Join us in building a workplace where everyone feels valued, empowered and excited to contribute their best work every day.