Senior Security Engineer - Paris H/F Aircall

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Aircall is a place where voices are valued.
Backed by over $220 million of investment since 2015, we create technology that fuels accessible, transparent and collaborative communication to empower our base of 20,000+ customers (and growing) to make authentic, human connections.
Conversation is a cornerstone of our culture. Wherever our people find themselves in the Aircall world - Paris, New York, San Francisco, Sydney, Madrid, London, Berlin, Seattle, Mexico City or at home - everyone has a voice that is valued.
Whatever your background, wherever you're from - we want you to join the conversation. Let's talk.
As a Senior Security Engineer, you will BE responsible for fostering and maintaining a good security posture on our infrastructure, application and processes to help other teams deliver customer value on top of Voice. Security testing best practices, evangelization, and mentoring in your team and across the whole of Engineering will BE part of your day to day job.
Quality, excellence, and agility drive our delivery processes and you will help us level these up. Using modern tools (Rails, TS, Terraform...) on AWS, we build added value and resilient services on top of voice and fully integrate with our customers' business critical tools (CRM, Helpdesk, E-Commerce...).
Key Responsibilities :

- Embed security early in the software development lifecycle by collaborating closely with engineering teams to integrate secure coding practices, automated security testing, and threat modeling.
- Develop and implement security guardrails, ensuring developers and infrastructure teams can self-serve secure frameworks and best practices.
- In charge of security reviews for new features, services, and infrastructure changes, proactively identifying and mitigating risks before deployment.
- Design and implement AI-driven security solutions, leveraging machine learning for anomaly detection, threat intelligence, and automated response.
- Develop automation to streamline vulnerability management, compliance reporting, and security operations.
- Build and maintain security-as-code templates, playbooks, and CI/CD-integrated security controls, enabling developers to securely deploy software without friction.
- Provide internal tooling and training that empowers teams to manage security risks without needing constant security team intervention.
- Advocate for a DevSecOps culture by mentoring teams and driving security awareness across the engineering organization.
- Harden Aircall's SaaS infrastructure by designing scalable, cloud-native security solutions (AWS, Kubernetes, Terraform, etc.).
- Strengthen API security and application security by enforcing best practices for authentication, authorization, and secure data handling.
- Monitor and improve security observability, ensuring visibility across all environments through logs, alerts, and automated threat detection.
- Own and improve incident detection and response capabilities, ensuring rapid containment and resolution of security threats.

Qualifications :

- You have at least 5+ years of experience in Security involving Public Clouds (preferably AWS)
- Strong development backgroundwith experience in secure coding practices
- Experience with automation & AI-driven security- ML-based threat detection, and security automation tools
- Hands-on expertise in DevSecOps- integrating security tools into DEVOPS workflows (SAST, DAST, IaC scanning, runtime protection).
- Shift-left & enablement-focused :Passion for making security a frictionless part of engineering workflows rather than a blocker.
- Self-service mindset :Believes in building security guardrails and automation so developers can self-serve security solutions.
- Problem-solver & automation-first thinker :Constantly looks for ways to remove manual work through scripting, AI, or process improvements.
- Strong collaboration & communication skills :Able to partner with developers, SREs, and product teams to drive security adoption.
- Security evangelist :Proactively educates teams on security risks and best practices through training, workshops, and internal documentation.

Aircall is constantly moving forward. We're building new roads to complete our journey, and we're taking people with us who have the same builder mentality.
Let's grow together : Aircall is a place for those who dare to BE bold and seek responsibility, excellence, and the opportunity to push themselves to new heights.
We're creating a place where great people trust one another and thrive together.
People flourish at Aircall and now is the time to BE part of the team and the journey we're on.
Why join us?
Key moment to join Aircall in terms of growth and opportunities Our people matter, work-life balance is important at Aircall Fast-learning environment, entrepreneurial and strong team spirit 45+ Nationalities : cosmopolite & multi-cultural mindset Competitive salary package & benefits
DE&I Statement :At Aircall, we believe diversity, equity and inclusion - irrespective of origins, identity, background and orientations - are core to our journey.
We pride ourselves on promoting active inclusion within our business to foster a strong sense of belonging for all. We're working to create a place filled with diverse people who can enrich and learn from one another. We're committed to ensuring that everyone not only has a seat at the table but is valued and respected at IT by providing equal opportunities to develop and thrive.
We will constantly challenge ourselves to make sure that we live up to our ambitions around diversity, equity and inclusion, and keep this conversation open. Above all else, we understand and acknowledge that we have work to do and much to learn.
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