{"id":2111758,"url":"https://alion.io/job/mindbox-software-security-backend-engineer-java","title":"Software Security Backend Engineer (Java)","company":{"id":53456,"name":"Mindbox","domain":"mindboxgroup.com","url":"https://alion.io/company/mindbox","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Traffit","truth_index":{"grade":"A","score":86,"open_postings":68,"ghost_share":0,"stale_share":0.529,"repost_share":0.029,"time_to_fill_p50_days":53,"computed_at":"2026-11-02T06:13:15Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":49000,"max_usd":95000,"period":"year","method":"role_country_seniority_unknown","sample_n":946},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"GCP","optional":false},{"name":"Google Cloud Spanner","optional":false},{"name":"Google GKE","optional":false},{"name":"Java","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"Zero Trust","optional":false},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-04-17T14:16:52Z","employer_posted_date":"2026-05-12","last_verified_at":"2026-11-02T06:18:05Z","board_verified":true,"closed_at":null,"days_open":198,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":198},"description":"At Mindboxwe connect top IT talents with technology projects for leading enterprises across Europe.\nWe’re looking for a highly skilled backend engineer with both strong hands-on coding expertise and deep security knowledge to shape next-generation security solutions. You will design and build secure, scalable services using modern Java, Spring Boot, and cloud-native technologies, contributing to a Zero Trust platform for one of the world’s leading financial institutions.\nThis is more than just coding - you’ll drive industry best practices, mentor other engineers, and influence technology direction across a broad engineering community.\nSounds like your kind of challenge?\n#LI- Hybrid - 6 days a month from the office in Kraków\nResponsibilities\n Flexible cooperation model - choose the form that suits you best(B2B, employment contract, etc.)\n\nHybrid work setup - 6 days a month from the office in Kraków\nCollaborative team culture - work alongside experienced professionals eager to share knowledge \nContinuous development - access to training platforms and growth opportunities \nComprehensive benefits - including Interpolska Health Care, Multisport card, Warta Insurance, and more \nHigh quality equipment - laptop and essential software provided \nRequirements\nDesign, build, and deploy secure backend services leveraging Java 21 (Virtual Threads/Project Loom) and Spring Boot 3.x\nImplement Zero Trust architecture principles and OAuth2/OpenID Connect at the code level\nBuild solutions optimized for Google Kubernetes Engine (GKE) and databases such as Cloud Spanner or Cloud SQL (Postgres)\nDevelop event-driven architectures using Pub/Sub or Kafka\nAutomate from the outset: reduce manual toil and accelerate secure delivery pipelines\nApply best practices for software security across SDLC\nResearch new technologies, guide adoption, and set the technical direction for the platform\nMentor engineers and foster a culture of technical excellence and knowledge sharing\nActively contribute to engineering communities and “raise the bar” in delivering secure, high-quality solutions\nStay ahead of industry trends and communicate changes effectively to influence adoption\nNote:Detailed project information will be shared during the recruitment process.\nBenefits\n Expert knowledge of Java 21+ (including JVM internals, memory management, Project Loom) and modern Spring ecosystem\nSolid experience with secure coding practices and building authentication/authorization flows using OAuth2/OpenID Connect\nProven experience with Google Cloud Platform components (particularly GKE, Cloud Spanner, Cloud SQL)\nStrong practical experience in event-driven architecture with Kafka or Pub/Sub\nDemonstrated ability to think strategically about risk, security, and future technology adoption\nInfluential leadership skills: capable of transferring expertise and guiding teams across the organization\nHands-on problem-solving mindset, adaptable across multiple domains (not just a network or back-end specialist, but a generalist who thrives on complex challenges)\nDemonstrated thought leadership via technical blogs, open-source contributions, or community engagement is a plus\nJoining this project you’llbecome part of Mindbox - a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. 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