Développeur back-end/Développeuse back-end

We’re looking for an experienced Python developer to reinforce our team and contribute to our mission to deliver the best platform to our Users.

With 5 years of experience in backend development, you master the coding, testing, and deployment best practices . You are willing to thrive in a constantly evolving environment and be a driving force for your team by ensuring clear and effective communication.

You will join one of our squads and implement our Product Major Initiatives to reinforce Sekoia’s top European positioning in the cybersecurity ecosystem.

Get to know us

Sekoia.io rethinks cybersecurity with an innovative SaaS solution : an industry-leading AI-SOC platform capable of neutralizing threats before our customers suffer the impacts.

In a world where everything is connected, cyber threats are becoming ever more sophisticated, more numerous and more dangerous. Sekoia.io aims to make these threats painless.

With our latest fundraising of €26 million in 2025 , we will continue to strengthen our highly ambitious international expansion and our technological development to serve our customers.

By joining Sekoia today, you’ll dive into a period of rapid growth , collaborating with a cross-functional team that leverages cutting-edge AI to write the playbook for next-gen security operations centers and extend our global footprint.

If you’re passionate about defending the digital world and making a tangible impact , there’s never been a better time to join us!

Your missions

• Collaborate with product management, Frontend and Infrastructure teams to build our platform at scale.
• Innovate to tackle complex technical challenges using industry best practices.
• Guide & Support team members to foster professional growth and continuous learning, embrace our culture of feedback.
• Challenge yourself and others. Explore new techniques to improve development processes.
• Deliver valuable new features to our users.

The position can be based in Paris, Rennes or fully remote. Professional trips paid for by the company might be required.

Your profile

• You have 5 years of professional experience in back-end development , ideally in Python
• You are autonomous in your technological watch, and you are up-to-date with the latest standards (FastAPI, REST).
• You ensure code quality by following good development practices and performing unit tests.
• You participate in code reviews and provide constructive feedback to team members.
• You demonstrate architectural thinking.
• You have strong communication skills .
• You are driven by simplicity and efficiency
• You are proficient with modern SaaS technologies : Docker, Kubernetes / Databases (PostgreSQL, Clickhouse) / Queuing (Kafka, Celery) / Caching (Redis)
• You’re curious about new trends and technological developments.
• Writing automated tests (Jest, Playwright, etc.) is something obvious for you.
• You write and speak English fluently
• You have experience in cybersecurity
• You have experience working with LLMs
• Knowledge of Kubernetes/Docker ecosystems is a plus
• Strong values of collaboration, innovation, trust, excellence, humility and open-mindedness to help you thrive and make your contribution impactful
• Remote-friendly setting: you can be in a hybrid setting (Paris or Rennes) with up to 3 remote days per week, or be fully remote with professional trips once a month
• 100% of the Alan Health insurance package covered by Sekoia
• Swile vouchers of 11€/day 50% covered by Sekoia
• Offices located in central Paris (10e) and central Rennes (near the station)