Senior Backend Engineer: Security & Kubernetes

Link Group; Warszawa, Wrocław, Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

Link Group is seeking a Senior Back-end Developer with strong Docker and Kubernetes experience to own security-focused backend lifecycle management. You will work with development, DevOps and security teams to ensure secure, reliable services are built, tested and deployed to standards.

You will contribute to architecture discussions, manage dependencies with a security lens, and help advance secure development practices across the application lifecycle.

Qualifications

• 3+ years of professional backend development experience.
• 3+ years hands-on Docker experience.
• 3+ years hands-on Kubernetes experience.
• Understanding of containerized environments.
• Experience with security and vulnerability management.
• Ability to analyse issues and drive to resolution.
• Strong collaboration and communication skills.
• Ability to work independently in a senior role.

Responsibilities

• Develop and maintain backend applications running in Docker and Kubernetes environments.
• Support the identification and remediation of security vulnerabilities in backend applications and their dependencies.
• Participate in security testing and vulnerability assessment activities.
• Monitor and manage application dependencies, identifying outdated or vulnerable components and coordinating their remediation.
• Review and improve application and container configurations from a security and reliability perspective.
• Troubleshoot issues related to containerized backend applications and Kubernetes environments.
• Collaborate with developers, DevOps and security teams to resolve technical and security-related issues.
• Support secure development and deployment practices across the application lifecycle.
• Contribute to technical discussions around application architecture, security and dependency management.
• Document technical solutions, security findings and remediation activities.
• Help improve processes and practices related to application security and dependency lifecycle management.

Skills

Backend development

Docker

Kubernetes

Security concepts

Troubleshooting

Collaboration

Independent work

Job description

Link Group is seeking a Senior Back-end Developer with strong Docker and Kubernetes experience to own security-focused backend lifecycle management. You will work with development, DevOps and security teams to ensure secure, reliable services are built, tested and deployed to standards.

You will contribute to architecture discussions, manage dependencies with a security lens, and help advance secure development practices across the application lifecycle.