Senior Security Engineer (m/f/d)

About the Position

Senior Security Engineer (m/f/d)

YOUMMDAY is seeking a Senior Security Engineer (m/f/d) to join our CISO team in a hybrid working model in Munich or Berlin. If you are passionate about cloud security and want to make a real impact, we want you on our team.

Location

• Munich, Germany
• Berlin, Germany

Address

Infanteriestr. 11a, Haus E2, Munich, 80797

Employment Type

Full time

Location Type

Hybrid

Department

Finance & LegalCyber Security / CISO

Your Mission

Are you ready to move beyond just writing security concepts and put your decisions into practice? Do you view cloud security as more than just a compliance checklist, but as a combination of threat modeling, Infrastructure as Code, and hands-on engineering? Then we are looking for you to join our team.

In a three-person team, you will share genuine responsibility. There are no ticket queues or "that’s not my area." We plan together, cover for one another, and usually implement and operate the security controls we design ourselves. This means you will see the impact of your work immediately - not at some point in the distant future.

Responsibilities

• Security Architecture & Cloud Guardrails: Take technical ownership of the security architecture and controls across our Azure environment - from Defender for Cloud and Microsoft Sentinel to Log Analytics. Build and maintain the corresponding guardrails directly in Terraform.
• Detection Engineering: Develop and continuously improve our detections in close collaboration with our Security Analyst, who is responsible for day-to-day SIEM monitoring and triage. Work as a well-coordinated team rather than in separate silos.
• Vulnerability Management: Further develop our vulnerability management and monitoring across a hybrid environment. This includes our growing cloud landscape as well as the existing on-premises stack for as long as the migration is ongoing.
• Security Beyond the Cloud: Contribute your expertise beyond cloud security, including identity, endpoint security, application security, incident response, and AI. Develop tooling for AI-assisted penetration testing within our team and translate it into practical, scalable processes.
• AI-Assisted Engineering: Use tools such as Claude Code to build and maintain internal security tools and automations. Help us identify AI-specific risks early-from the secure use of AI coding assistants to prompt injection.

Requirements

• Azure Security & Certifications: At least five years of experience in security engineering and several years of hands-on experience implementing Azure security. Hold an AZ-500 certification or have equivalent practical expertise. SC-100, CISSP, CCSP, or Security+ certifications are a plus.
• Infrastructure & Automation: Confidently read, write, and further develop security-related Terraform code. Experience with Python, Django, PowerShell, or AI-assisted development is a plus.
• Identity & Detection: Practical experience with Entra ID, RBAC, and PIM, as well as solid knowledge of network security, SIEM, and detection engineering.
• Offensive Security & Vulnerability Management: Experience with traditional or AI-assisted penetration testing and with tools such as Tenable or Microsoft Defender Vulnerability Management is ideal.
• Hands-On Mindset: Implement and operate security controls in practice. Take ownership and develop a solution when you identify a problem.
• Collaboration & Communication: Share knowledge and responsibility and work closely with the team on areas of joint ownership. Communicate confidently and professionally in English. German is a plus, but not a requirement.

We Offer

• Your Benefits: In addition to 30 days of annual leave, we offer a monthly lunch allowance of €69, a Givve Card topped up with €50 every month, or alternatively a subsidized Wellpass membership. You’ll also benefit from discounts through Corporate Benefits, the option to lease a JobRad bike, contributions towards occupational pension schemes and capital-forming benefits (bAV & VL), as well as fantastic team and company events.
• Your Workplace: Enjoy a flexible, hybrid working model, combining work from one of our modern, dog-friendly offices with the flexibility to work remotely. You’ll also have the opportunity to enjoy up to two weeks of workation per year within the EU (available only to employees holding an EU passport).
• Your Impact: Join a profitable company where you’ll have the freedom and trust to shape our future and work with us to redefine the future of work.
• Our Values: We pride ourselves on an open and authentic culture and a high-performing team with a great sense of humour. We’re excited to welcome someone who’s ready to make bold decisions, explore new paths, and help us achieve sustainable success.
• Your Opportunity: From day one, you’ll have the chance to take ownership, drive innovation, and grow both professionally and personally alongside a team of experts, contributing to the continued development of both the company and yourself.

About the Company

Are you looking for a profitable scale-up that offers you long-term prospects and a disruptive business model with a growth-oriented corporate culture? Do you also want to grow beyond the usual standards, bring your own initiative and appreciate actively shaping topics?

Then yoummday is the right place for you!

yoummday: “You made my day” - As an innovative SaaS platform, we connect companies with highly qualified freelance call center agents (“Talents”) worldwide. Our digital solution enables flexible, scalable and efficient customer support - without the need for traditional call center structures. We are a family-run Munich-based scale-up with over 350 employees (“Daymakers”) at 5 locations in Europe and 1 in the USA - further growth is inevitable ;)

Become part of our team and set new standards in AI-supported customer service with us to create smart, data-driven solutions that inspire.

At yoummday, we value diversity and equal opportunities. We welcome applications regardless of gender, background, age, sexual orientation, religion, or disability. Different perspectives make us stronger – which is why we actively promote an inclusive work environment where everyone can reach their full potential.