DevOps / Platform Engineer

Job Description
Posted on:

November 18, 2025

About Us:
We're 3D Spark, a Hamburg-based B2B SaaS startup founded by scientists from the prestigious Fraunhofer Society. Our mission? To revolutionize industrial manufacturing through cutting-edge software solutions. Over the past year, we've doubled our team and tripled our customer base, automating quoting for Deutsche Bahn, supporting Alstom in saving €15M+ and "democratizing 3D printing" with ZF Friedrichshafen.

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Why Join Us
Rocket-Fueled Growth: Propel your career in a dynamic tech startup that's reshaping the industry.

Global Impact: Contribute to revolutionizing manufacturing processes worldwide with our innovative SaaS platform.

Innovation Hub: Work in an entrepreneurial environment where your ideas shape the future of our company.

Collaborative Spirit: Be part of a tight-knit team, with mentorship from seasoned professionals driving your success.

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As a DevOps / Platform Engineer, you will take ownership of the operational backbone of our SaaS platform and drive the next stage of its evolution. You will work closely with Engineering, Security, and Product to build a secure, scalable, and automated infrastructure, supporting our transition toward a Private Cloud and an increasingly modernized, high-reliability architecture.

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Infrastructure Architect: Manage and optimize our infrastructure including Linux servers, Docker/Docker-Swarm (future transition toward Kubernetes), networking, TLS/SSL, backups, and observability.

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Security Steward: Design and implement robust authentication, authorization, and API security frameworks using tools like Keycloak. Support alignment with GDPR and other data protection standards. Support secure on-prem deployments for enterprise customers and execute technical parts of policy and ISO 27001 requirements.

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Monitoring Maestro: Oversee server monitoring with Prometheus, Grafana, and Wazuh, ensuring reliability, SLO awareness, alerting hygiene, capacity planning and actionable security insights.

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Deployment Engineer: Deploy software updates and maintain server infrastructure, automate operational workflows, support CI/CD processes, automate infrastructure with IaC (Terraform, Ansible or similar), harden and secure configurations and streamline deployment paths for cloud and on-premise customers.

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Identity and Access Practitioner: Collaborate on secure authentication and authorization based on Keycloak (OIDC) and realize IdP integrations, service-to-service authentication and identity lifecycle automation.

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Policy Advocate: Work with our team and customers to support compliance requirements (e.g., on-prem deployments, customer security checklists, basic vendor assessments) and operationalize internal policies.

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Continuous Improvement: Collaborate with cross-functional teams to enhance scalability, stability, and automation while supporting the transition to a Private Cloud architecture.

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What You Bring
Education: Master's degree in Computer Science, Information Technology, Cybersecurity, or a related technical field.

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Technical Expertise

• Proficiency in Linux, Networking, Docker/Docker-Swarm, and infrastructure automation.
• Experience with IaC (Terraform, Ansible - any is a plus).
• Experience with Kubernetes and Helm is a strong plus.
• Experience with authentication and identity management tools like Keycloak.
• Familiarity with monitoring/observability stacks (Prometheus, Grafana), SIEM (Wazuh).
• Exposure to DevSecOps tooling (e.g., Snyk, Trivy)
• Awareness and understanding of GDPR and data protection principles.

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Programming Knowledge: Ability to read/understand Python code (Django familiarity a plus, not required)

Interpersonal Skills: Strong communication skills to work effectively across technical and non-technical teams. Structured, reliable, and proactive work style.

Detail-Oriented: A keen eye for detail and an analytical mindset for solving complex technical challenges.

Languages: Professional proficiency in English; German is a strong plus.

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Why You'll Love It Here
Personal Growth: Shape new market areas using your unique cultural and linguistic connections.

Professional Development: Work closely with mentors, gaining hands-on skills that propel your career.

Flexibility: Prioritize performance over rigid schedules in a transparent, low-hierarchy culture.

Entrepreneurial Spirit: Take ownership in a vibrant startup atmosphere, reporting directly to our founders.

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Ready to Join Us?
If you're passionate about customer success and ready to make your mark in a pioneering software startup, we want to hear from you Submit your resume and a cover letter outlining your interests and how your skills align with our vision.

Women Encouraged to Apply:
Research shows that women are less likely to apply for a job if they don't meet all the listed requirements. We value diverse perspectives and believe that your unique skills and experiences can contribute significantly to our team. Therefore, we strongly encourage you to apply if you believe you are well-suited for this position, regardless of whether you meet every listed requirement.

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