Senior Software Engineer

GitGuardian; Paris; Hybrid; EUR 90,000 - 130,000; Full time

Job summary

GitGuardian, a Paris-based cybersecurity scale-up, is looking for a Senior Python/Django engineer to join the Sources Squad. You will own features end-to-end, from scoping with Product and Design through technical design, implementation, deployment and monitoring on a large Django application.

You’ll work on backend systems (Python/Django, PostgreSQL, Redis) with a small team, emphasize reliability, observability, and AI-assisted development while maintaining high code quality.

Qualifications

• 5+ years of production Python/Django experience.
• Strong ORM, SQL optimization for large tables.
• Experience handling production incidents end-to-end.

Responsibilities

• Own features end-to-end from scoping with Product and Design to deployment and monitoring.
• Tackle production incidents, root cause analysis and prevent recurrence.
• Collaborate with Product, Design and Staff Engineer to deliver robust systems.

Skills

Python

Django

SQL

APIs

DevOps

Tools

PostgreSQL

MongoDB

Kubernetes

Docker

Job description

About GitGuardian

GitGuardian is a global cybersecurity scale-up. The company is based in Paris, New-York City, Boston.

About GitGuardian

GitGuardian is a global cybersecurity scale-up. The company is based in Paris, New-York City, Boston. Our early investors include Scott Chacon, co-founder of GitHub, and Solomon Hykes, co-founder of Docker, alongside leading US and European VC firms. We raised our Series C in early 2026. GitGuardian leads the way in securing the credential layer, helping organizations protect the secrets that let code, machines, and AI agents access systems with broad detection, identity context, and remediation at scale. Already trusted by 600K+ developers worldwide and by 50 of the Fortune 500!

About Your Team And Mission

The Sources Squad connects GitGuardian to the platforms our customers want to protect, from GitHub and GitLab to Slack, Jira and AWS. It ensures the reliability of the integrations and scans that detect exposed secrets. As the number of customers, sources and data grows, our challenge is to maintain high reliability and ensure continuous protection. You'll join a team of 6 engineers (5 backend and 1 frontend) and an Engineering Manager, working closely with a Product Manager, a Designer and a Staff Engineer. You'll help scale our integrations, strengthen system resilience and observability, and improve the user experience around source and scan management. You'll also tackle production issues, identifying root causes and implementing solutions to prevent them from happening again. You'll work on a large-scale Django application with a high level of ownership, from technical design through deployment and production monitoring. We encourage initiative, collaboration, technical excellence, and the everyday use of AI and agentic engineering, while ensuring that everyone takes ownership of the code they ship.

Technical environment

• Backend: Python (Django) 90%, Rust 10%
• Frontend: JavaScript (React), TypeScript, React Query, Jest
• DB: PostgreSQL, MongoDB
• Observability: Coralogix, Sentry, Grafana
• Deployment: ArgoCD, GitLab CI, Terraform
• Runtime: Kubernetes (Karpenter, Istio)
• Cloud providers: AWS and OVH
• Message brokering: RabbitMQ, Redis

About You

Here's what we consider essential for success in this role:

• 5+ years of experience in web development, with strong, recent production experience in Python and Django: ORM performance, transactions, migrations on large tables, SQL optimization
• Solid software engineering fundamentals: clean, tested code, sound data structures, care for performance, methodical debugging
• Experience handling production incidents end-to-end: assessing impact, communicating status, fixing, finding the root cause and preventing recurrence
• The ability to own a project or feature end-to-end: from scoping with Product and Design, to technical design, implementation, deployment, and monitoring
• Autonomy paired with clear, frequent communication: you deliver in small increments, share progress and blockers early, and write updates others can act on
• Strong proficiency in AI-assisted and agentic development workflows, while staying accountable for every line you ship
• Strong written and verbal communication skills in English, with the ability to move from high-level discussions to deep technical dives

The following skills would strengthen your application but aren't required:

• Experience with distributed systems, async pipelines and third-party API integrations (rate limits, pagination, webhooks, retries and idempotency)
• Hands-on use of observability tools (logs, metrics, traces, error tracking) to investigate and improve production systems
• Experience with a large monolithic codebase, and an interest in refactoring and building reliable systems
• Ability to push a simple feature all the way to the frontend (React / TypeScript)

The interview process

Video call with a Talent Acquisition team member

To discover your professional project and evaluate if there could be a mutual match.

Team interview / Interview with your future manager

To know more about yourself and your achievements, and present to you the team.

Technical interview

To evaluate your skills for the position and project yourself into the role.

4.1 Final interview with an Executive Manager

To detail our company’s vision and ambitions for the next couple of years.

4.2 References check

You can start thinking about two contacts who can attest to your previous or current professional experiences. These contacts should be as recent as possible, and we will call them at the end of the process.

More about GitGuardian!

Products

• Understand how GitGuardian works in this short video!
• Want to go even further? Check out our public roadmap!
• Check out the State of Secrets Sprawl Report to understand our mission and the industry.
• Our solutions are already used by hundreds of thousands of developers in all industries and GitGuardian platform is the n°1 app on the GitHub marketplace

Clients

• GitGuardian helps organizations find exposed sensitive information that could often lead to tens of millions of dollars in potential damage.
• More than 70% of our customers are in the United States.
• Many F500 companies use GitGuardian's platform.

People

• The Guardians are knowledgeable, committed, serious, aligned with the company’s mission, and true team players: always willing to help each other grow our skill sets!
• The team is diverse and we hail from more than 20 different countries.
• We are also agile, remote-friendly, and fun people to work with.
• You will get trust & autonomy on your perimeter with a very transparent internal communication and a strong impact on the company development.

At GitGuardian, we are committed to building a diverse, equitable and inclusive workforce.

We will ask for your gender identity on the application page to help us understand the diversity of our applicant pool and to track our progress in attracting and hiring a diverse workforce. The information is optional and will not be disclosed to the hiring manager or the interview team and will not be considered in the hiring process. We appreciate your willingness to share this with us so that we can continue to improve our diversity, equity and inclusion efforts.