DevSecOps Engineer

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe. Are you passionate about secure, high-performance CI/CD systems and cutting-edge DevSecOps practices? We are looking for a DevSecOps Engineer to own and evolve our Jenkins Shared Library, which powers multi-language builds including Java/Maven, Node/NPM, Python, Helm, Terraform, and container images. Your work will strengthen supply-chain integrity, deliver secure, provenance-rich pipelines (SLSA, SBOM, digests), and ensure a seamless developer experience across teams. Sounds like your kind of challenge? #LI-Hybrid What you get in return Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.) Hybrid work setup – 6 days per month in the office in Kraków Collaborative team culture – work alongside experienced professionals eager to share knowledge Continuous development – access to training platforms and growth opportunities Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more High quality equipment – laptop and essential software provided
Requirements:
7+ years of engineering experience , with 3+ years focused on CI/CD platforms or DevSecOps. Solid expertise in Jenkins, Kubernetes (K8s) and Groovy Shared Libraries . Advanced Python automation scripting (JSON/YAML processing, CLI tooling). Strong understanding of Maven, NPM, Python packaging ; familiarity with Helm, Terraform, and container metadata. Hands-on experience with supply-chain security , including SLSA frameworks, SBOM formats (CycloneDX), and cryptographic digests. Security tools knowledge: SonarQube, Sonatype IQ, SAST, container scanning . Proven track record in performance optimization of CI/CD pipelines. Awareness of compliance and secure coding practices. Nice-to-Have Experience with artifact signing/attestations (e.g., cosign, OCI standards). Hands-on knowledge of publishing Terraform modules and Helm charts. Exposure to GitOps or automated release management. Proficiency with major cloud providers, especially GCP or AWS . Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
Must have: Jenkins, Kubernetes, K8s, Groovy, Python, JSON, YAML, CLI, Maven, npm, Helm, Terraform, Security, SonarQube, SAST, CI/CD
Nice to have: Terraform modules, Helm Charts, Cloud, GCP, AWS
Daily tasks: - Design and maintain Groovy pipeline steps for build, test, package, scan, and deploy workflows.
– SLSA provenance and SBOM generation
– Hash/digest validation
– Security scan aggregation (SonarQube, Sonatype IQ, SAST, Container scans)
– Optimize pipeline performance (parallel builds, caching, reduced BOM scope, dependency prefetch).
– Guarantee artifact integrity through SHA1/SHA256 mapping and evidence modeling.
– Refactor legacy scripts for maintainability and standardization.
– Document ci-config.yaml patterns and enforce best practices.
– Mentor engineers on secure pipeline development and compliance practices.
– Troubleshoot and proactively prevent pipeline-related incidents.