Senior Software Engineer

Software Engineer

Our job everyday is to protect the data and critical assets of businesses world-wide by discovering hidden vulnerabilities… before the bad guys do!

At CybelAngel, we see beyond perimeters to protect businesses from the most critical cybersecurity threats. Fortune 500 Global to mid-size companies world-wide, trust CybelAngel's global team of approximately 130 team members to protect their businesses from digital threats. With a combination of advanced machine learning, cyber analysis expertise, and a powerful suite of software solutions, CybelAngel detects and resolves our clients potential threats, long before they can fall into the hands of cyber criminals.

Our capabilities expand every day to uncover new risks, detect more threats, protect more clients, and create new possibilities for our employees.

With employees based in France and in the US, CybelAngel's global footprint allows for a thriving hybrid, office and remote-work environment. We are looking for exceptional 'go-getters' who share our ambitious vision, innovative culture especially considering our GenAI DNA, high commitment to ethics, and enthusiasm for being the best possible place to work!

Our values

• Be Bold
• Be Curious
• Stronger Together

Product & Engineering organization

The Product & Engineering organization at CybelAngel is about 45-50 people, from product managers to support agents, from infrastructure experts to data scientists/ML engineers.

Teams are focused on building the web applications and underlying services used by our in-house security analysts, external partners, and clients to handle and remediate cybersecurity threats.

We are looking for a talented Software Engineer who will help CybelAngel build the next generation of those web applications using modern technologies, design principles — and an AI-first mindset.

The teams together share a wide functional scope which comprises dedicated web apps such as:

• Tools for investigating and remediating cybersecurity threats
• Dashboards to help our clients understand their exposure to risks
• APIs for partners to plug into our workflows
• Specialized panels to fine-tune our threat detection technologies

Teams are able to decide and operate on the whole stack ranging from infrastructure to visual appearance, through data models, APIs and business logic, with guidance from more specialized teams when needed (e.g. SRE, Product Design).

More about the Core Team

Join the Core Team, where you'll tackle a broad and impactful technical scope at the crossroads of all our engineering teams. We're a backend-focused team, deeply immersed in building and maintaining Python APIs that power the products our customers rely on every day—from the APIs behind our frontends to the authorization and authentication systems that keep everything secure. Made up of senior engineers with diverse areas of expertise, the team offers a rich environment to grow, collaborate, and make a real technical impact.

Responsibilities

As a software engineer

All software engineers routinely:

• Design, implement and deploy new product features
• Review and test code written by their teammates
• Monitor applications running in production
• Investigate incidents and fix bugs
• Take part in the daily life of their team

Going further

More experienced engineers do their best to make their team better. More specifically, they:

• Inspire junior engineers by being exemplary
• Pair on difficult tasks with less-experienced engineers
• Improve practices to speed up development
• Identify major technical improvements to be pursued
• Promote attention to product quality

AI in your daily work

AI is already part of how we build at CybelAngel — and we expect this to grow significantly. As an engineer here, you will:

• Use AI-assisted development tools (e.g. Claude, Cursor, or equivalent) as a genuine productivity lever, not just as an autocomplete
• Critically assess AI-generated code: you know when to trust it, when to push back, and how to review it rigorously
• Contribute to integrating AI/LLM capabilities into our products where relevant — whether that means calling an API, building a retrieval pipeline, or evaluating model outputs
• Share learnings with your team and help shape our collective practices around AI-assisted development
• Stay up to date with how AI tooling is evolving and bring relevant experiments to the table

Stack

• Front-end: VueJS/VueX, Vuetify, TypeScript
• Back-end: Python, Flask
• Databases: PostgreSQL, MongoDB, ElasticSearch
• Infrastructure: GCP, Kubernetes, Docker, Terraform, Gitlab CI, Datadog

Requirements

Your profile

• 3 to 6+ years of experience as a software engineer
• Experience in a fast-growing startup or scale-up environment
• Meaningful contribution to a large web application, especially back-end

Hard skills

• Solid experience with back-end development (ideally Python)
• Comfortable with JavaScript or TypeScript
• Understanding of web-related security risks (or a strong motivation to learn)
• A fullstack & DevOps mindset
• Fluent in written and spoken English
• Hands-on experience with AI development tools and a genuine curiosity about their evolution

Soft skills

• Cares about the final product and the end user
• Gets things done with pragmatism
• Questions the status quo when necessary
• Communicates efficiently with others
• Knows how to deal with disagreements constructively

If you don't meet every requirement but believe you'd be a great fit, we encourage you to apply and tell us why.

Our Product & Engineering Culture

Small teams & short iterations

Culture of sharing, pair and mob programming, when it makes sense

Quality time dedicated to technical design

Half the software engineers have over 10 years of experience

Voyager Program to change team temporarily and discover how they work #becurious

Cooldown week dedicated to learning and experimenting

Paris or full remote from everywhere in France (one trip to Paris per quarter)

Our Benefits

Salary range: 60-66k, based on your level of experience and the competencies you'll demonstrate during the hiring process

5% bonus, based on company and individual performance

Lunch card with company contribution

Healthcare insurance with company contribution

Remote allowance

Monthly credits with CSE partner

5 weeks of holidays and RTT

Subsidy for one sporting event per year

Legal Care Service

Your hiring journey

1. 30' — Call with Pierre, Recruiter, to make sure expectations from both ends have a good chance to match
2. 45' — Call with Gauthier, Engineering Manager, to evaluate skills and culture fit
3. 90' — Call with two teammates to explore and discuss a practical situation
4. 30' — Call with Loïc, CTPO