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April 24, 2026

Senior Java Developer (DevOps)

Senior • Remote

125 - 170 PLN

Warsaw, Poland

Craftware is a technology company of over 500 experts, empowering large organizations to solve complex business challenges with modern IT solutions - from sales systems and automation to data platforms and AI. We operate where technology must be reliable, secure, and scalable. We deliver end-to-end projects: from analysis and architecture through implementation to development and maintenance. We are a trusted partner of industry leaders such as Salesforce, Veeva, UiPath, and Databricks.

Model: remote

Employment type: full-time

Responsibilities:

  • Design, develop, and maintain backend services

  • Participate in refinement sessions, proposing technical approaches and identifying risks

  • Collaborate with Business Analyst, Frontend Developers, QA, and UX

  • Take ownership of backend components and deliver features end-to-end

  • Contribute to sprint planning, estimation, and Agile delivery

  • Ensure code quality (reviews, testing, best practices)

  • Support CI/CD, Docker, and Heroku deployments

  • Monitor, debug, and optimize performance

  • Mentor team members and contribute to technical improvements

Requirements:

  • 5+ years Java (11–17+) with strong Spring Boot experience

  • Solid backend development and collaboration with Angular teams

  • PostgreSQL

  • Hibernate, Liquibase, Maven

  • Redis (caching/session management)

  • SAML-based authentication

  • CI/CD (GitLab CI or GitHub Actions)

  • Docker & Heroku deployments

  • Code quality tools (e.g., SonarQube)

  • Experience with testing, debugging, and production support

  • Clean code, design patterns, and Git workflows

  • Ability to mentor, review code, and drive improvements

Nice to have:

  • Performance optimization & monitoring tools

  • Experience with AI-assisted coding tools (e.g., Copilot)

  • Experience with enterprise/HR systems

  • System modernization or migration projects

  • DevOps / Platform Experience

  • CI/CD pipeline design

  • Docker (multi-stage builds, Compose)

  • Environment management (dev → prod)

  • Heroku configuration and deployment

  • Security practices (OWASP)

Employment conditions:

  • B2B contract,

  • Daily support from team leaders,

  • Dedicated certification budget,

  • Assistance in defining and support in your development path,

  • Benefits package,

  • Integration trips/events.