NameBack-end Software Developer (Python & DevOps) Description Location: Fully remote, based in Poland, flexible working hours (CET-aligned)Experience: 3+ years in back-end engineering (esp. Python & AWS)Contract: B2BCompensation: 16,000–21,000 PLN/month (+ VAT if applicable) The RoleWe are looking for a Back-end Developer with strong Python proficiency and solid DevOps experience, particularly on AWS. This is a hands-on role where you will work across application back-end development and cloud infrastructure, helping us build, scale, and operate secure, production-grade systems.You will collaborate closely with our Product Development team to deliver reliable, secure, and high-performing services powering Relock’s platform.ResponsibilitiesDesign, build, and maintain back-end services and APIs (primarily in Python).Develop and operate cloud infrastructure on AWS with a strong focus on reliability and security.Design, automate, and maintain CI/CD pipelines and deployment workflows.Collaborate with product developers to deliver integrated, production-ready solutions.Implement and maintain monitoring, logging, and alerting systems.Improve system scalability, performance, and operational resilience.Contribute to back-end and DevOps best practices, tooling, and internal standards. Requirements3+ years of experience in back-end engineering.Strong Python proficiency (production-grade experience required).Solid DevOps experience, with a strong preference for AWS.Experience with containerization and orchestration (Docker, Kubernetes).Hands-on experience with CI/CD pipelines (GitHub Actions, GitLab CI, or similar).Infrastructure-as-Code experience (Terraform, Pulumi, or equivalent).Good understanding of system reliability, security, and scalability.Fluent Polish and very good English (spoken and written).Ability to work independently in a remote setup.Nice to have:Experience with Go and/or Rust.Background in cybersecurity, IAM, or identity-related systems.Why Join UsFully remote role with flexible working hours.Real ownership over both back-end systems and cloud infrastructure.Opportunity to work on cutting-edge identity and security technology.Strong engineering culture with a learning-by-doing mindset.Competitive B2B compensation (range to be negotiated is stated above), based on skills and impact.About RelockRelock is the world’s first browser-based device trust solution able to protect sessions as well as to enable true adaptive trust. Invisible to users, it achieves 100% adoption from day one, replaces alert fatigue with a clear trust signal, and integrates seamlessly with any IAM or CIAM stack.Ready to help shape the future of identity and security? Apply and join Relock.