Software Engineer - Cybersecurity - Apprenticeship

Who we are?

HarfangLab is a cybersecurity scale-up that has developed anEDR(Endpoint Detection and Response) software, designed to prevent, detect and neutralize attacks targeting workstations and servers. In 2024, our solution has incorporated EPP (Endpoint Protection Platform) capabilities and monitoring tools to simplify IT infrastructure audits.

Since our founding in 2018, HarfangLab's technology has earned widespread recognition, winning prestigious awards and achieving the distinction of being the first ANSSI-certified EDR in 2020, followed by becoming the first to receive ANSSI qualification in 2025.

We have raised a total of €30 millions, enabling us to strengthen our teams and expand internationally across Europe. In just three years, HarfangLab’s workforce has nearly tripled, with the majority of its team members coming from technical backgrounds and dedicating themselves to R&D and continuous product enhancement.

Today, HarfangLab protects the endpoints of several hundred clients of all shapes and sizes, from CAC 40 corporations and government agencies to SMEs, hospitals, and local councils.

Driven by a strong sense of teamwork and global ambitions, HarfangLab continues to grow while staying true to its mission: to protect organisations from increasingly sophisticated cyber threats while ensuring that customers maintain full control over their data.

Why are we hiring?

Entreprise's growth continues, and we have plenty of ideas on what we want to enhance in the product.

What you will do with us?

As a Python Back End Apprentice, you will be responsible for developing the backend of our EDR, which stores, processes, and displays telemetry data collected from the IT infrastructure. The backend plays a central role in the product, requiring daily interaction with frontend, agent, and devops teams as needed. 

Your responsibilities will include:

• Contributing to the construction and improvement of the product by adding new features, from conceptualization to code implementation,
• Addressing performance issues: the backend must handle and process data from 100,000 machines, so the code must be efficient,
• Ensuring the reliability of the backend, which is installed on-premise at our clients and needs to operate autonomously,
• Contributing to internal tooling to make the development process as seamless as possible,
• Providing input on areas of improvement in the existing codebase. We welcome all good ideas to identify and address issues during development rather than at the client site.

Our tech stack includes Python, ElasticSearch, Kafka, and Kubernetes!

Duration: 1 to 2 years.

About you

Hard Skills

• Currently studying Computer Science, Software Engineering, or a related subject,
• You have at least one hands-on experience with Python backend development.

Soft skills

• Problem solver: You have strong analytical skills, you are creative, and you love solving complex problems,
• Collaborative Team Player: You excel in collaborative environments, valuing teamwork and the collective achievement of goals.

About us

Our office and Team Life:

• Offices located in the heart of Paris, near Bourse (75002),
• High-quality equipment based on preferences and needs (PC, Mac, additional screens, etc.),
• Thanks to our Office Manager, we regularly organize events such as seminars, happy hours, themed evenings, and more,
• An onboarding process to welcome each new colleague with an explanation of the roles and a mentor to support you during your early days!"
• A great team that always seeks to improve their skills