Senior Platform & Cloud Engineer

Jus Mundi; Paris; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Hybrid work arrangement

5 weeks vacation

Private health insurance for you and/​

Relocation assistance

Restaurant vouchers

Company-wide summits: JM Fest

ClassPass membership

Job summary

Jus Mundi in Paris is looking for a Senior Platform & Cloud Engineer to design, build, and operate the internal developer platform and scalable cloud infrastructure powering our legal-tech services.

You will own hands-on cloud engineering across Kubernetes, multi-cloud environments, database and search clusters, and security while advancing automation and self-service tools for engineering teams worldwide.

Qualifications

• 6+ years in cloud infrastructure, platform engineering, or DevOps.
• Strong software engineering skills (Go, Python) with developer tooling
• Hands-on cloud infrastructure engineering
• Kubernetes cluster-operations experience
• Experience managing and optimizing database & search clusters
• Strong platform automation skills: containers, orchestration, CI/CD, and IaC
• Observability engineering: Prometheus/Grafana, logs, traces, metrics
• Proficiency in AI-assisted engineering tools
• Good English communication skills (written and spoken)
• Write-it-down culture and strong organizational abilities
• Openness to exploring new methods and technologies
• Trustworthy with prior Tech Lead experience

Responsibilities

• Build and operate Jus Mundi's internal developer platform
• Design and run scalable, secure multi-cloud infrastructure
• Deliver self-service golden paths and automation for product teams
• Raise developer satisfaction with the platform
• Reduce toil and cognitive load for engineers

Skills

Go

Python

Kubernetes

CI/CD

Observability

AI‑assisted tooling

English communication

Leadership

Education

Bachelor's degree (BAC+3) in Computer Science or equivalent

Tools

Terraform

Ansible

GitLab

Kubernetes

Job description

About the Role

Jus Mundi is looking for a full-time Senior Platform & Cloud Engineer to join the team. We want you to be part of a team of passionate people who are always ready to help each other. This position is based in Paris with a very flexible remote working arrangement.

In the EPD team (Engineering, Product and Design) department, your role will be to build, run, and evolve our internal developer platform and the scalable cloud infrastructure that powers it. You’ll create paved paths, self-service tooling, and automation that enable engineering teams to ship faster, safer, and more autonomously, all while owning hands‑on cloud engineering across Kubernetes, multi‑cloud infrastructure, database and search clusters, security, reliability, and cost optimization.

We take pride in our very open‑minded approach to employees’ contributions: your work will directly shape the future of Jus Mundi’s service to the legal community worldwide.

Your mission at Jus Mundi

In one sentence: build and operate our internal developer platform so engineering teams ship safely and independently, while designing and running the scalable, secure, cost‑efficient cloud infrastructure that powers our global legal‑tech platform.

Platform / Developer Experience

• Deliver self-service golden paths for product teams
• Improve delivery performance across engineering teams
• Reduce toil and cognitive load for product engineers
• Build and own reusable platform components (CI/CD templates, IaC modules, observability-as-a-service…)
• Raise developer satisfaction with the platform

Cloud & Infrastructure

• Design and operate scalable, reliable multi‑cloud infrastructure
• Manage and optimize Kubernetes clusters
• Operate, tune, and scale database & search clusters (Elasticsearch, PostgreSQL, etc.)
• Optimize cloud cost / FinOps
• Maintain and improve infrastructure security and reliability

Our Tech Stack:

Here is a snippet of what technologies you will find at Jus Mundi:

• Cloud Providers: OVHcloud (main provider), AWS, Scaleway, Microsoft Azure
• IaC and CI/CD: Terraform, Ansible, GitLab
• Orchestration: HashiStack (Vault, Consul, Nomad) and experimenting with Kubernetes
• Databases: PostgreSQL, Elasticsearch, Redis, Neo4j, VictoriaMetrics
• Monitoring: Grafana, Prometheus, Vector, Zabbix, Datadog
• Network: HAProxy, Cloudflare Enterprise

But as we are explorers, we are open to new methods and technologies.

Preferred Experience and Skills

Must Have

• 6+ years of professional experience in cloud infrastructure, platform engineering, or DevOps, with a Bachelor’s degree (BAC+3) in Computer Science or equivalent
• Strong software engineering skills (Go, Python…) with the ability to build developer‑facing tools with usability, reliability, and adoption in mind
• Deep hands‑on cloud infrastructure engineering
• Kubernetes experience at the cluster‑operations level
• Experience managing and optimizing database & search clusters
• Strong platform automation skills: containers, orchestration, CI/CD, and IaC
• Observability engineering experience (Prometheus/Grafana, logs, traces, metrics)
• Proficiency in and regular use of AI‑assisted engineering tools
• Good English communication skills (written and spoken); ability to moderate advanced technical discussions
• Write‑it‑down culture and strong organizational abilities
• Ability to give effective feedback and collaborate cross‑team
• Openness to exploring new methods and technologies
• Trustworthy, with a track record as a technical leader (has held a Tech Lead position previously)

This is a plus:

• Experience in security‑intensive environments and security‑as‑code
• Cloud cost optimization / FinOps experience
• Experience with platform capabilities for AI/ML workloads: inference serving, vector/search infrastructure, MLOps/LLMOps, GPU scheduling
• Experience with specific technologies: Scaleway, OVHcloud, AWS, Microsoft Azure, Cloudflare, Elasticsearch, HashiCorp Suite (Vault/Nomad/Consul)
• Business awareness: connects platform and infrastructure choices to cost, business, revenue, and UX
• Customer mindset toward internal developers
• Active in the tech community: meetups, open source, or sharing insights online

Interview process

• Introductory Callwith Laurine, Talent Manager (30 min)
• System Design Interview (1h30)
• Hiring Management Interview with Yohan, Head of Infra (45 min)
• Half-Day at the Office + Lunch or Afterwork
• • Immersion with teams (1h30)
  • Culture Interview (45 min)Team‑Fit Meeting (45 min)
• Last call with Anna, VP People, or Jean‑Rémi, CEO (30 min)

Please note that, due to the nature of the sector we operate in, the final steps of our recruitment process include reference calls and a background check.

Need More Reasons to Join Us?

• Enjoy a hybrid working organization that combines remote and on‑site work (2 days).
• Get 5 weeks of vacation each year, and take them whenever it suits you.
• Receive 100% coverage of private health insurance for yourself and your children.
• Enjoy 60% company‑funded restaurant vouchers for your weekday meals (Swile).
• Participate in company‑wide summits called JM Fest to connect and inspire.
• Stay active with a co‑financed ClassPass membership by accessing a variety of fitness and wellness activities.
• Enjoy the flexibility to work from anywhere across the globe for up to 8 weeks per year.
• Receive relocation assistance to help ease your transition to France.
• Last but not least: Experience a 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. Whether you’re early in your career or a seasoned professional, your unique perspective and skills are what matter most. Join us in building a workplace where everyone feels valued, empowered, and excited to contribute their best work every day.