Senior Java Software Engineer

Experience: 5+ years
Work Format: Hybrid (Poland, Warsaw)

Responsibilities

• Build, operate, and maintain the information system ensuring high availability and service continuity.
• Design, develop, and deliver high-quality software solutions following best practices (maintainable, secure, scalable, testable, and well-documented).
• Oversee software production for assigned components or system areas.
• Analyze, clarify, and validate business requirements in collaboration with stakeholders.
• Participate in pre-project studies and contribute to solution design decisions.
• Develop software in accordance with coding, security, and architectural standards.
• Optimize, refactor, and maintain existing codebases.
• Integrate software packages and configure system components.
• Define and implement testing strategies; support deployments across multiple environments.
• Maintain and update technical documentation.
• Provide application support and participate in continuous improvement initiatives.
• Support and maintain legacy systems while ensuring knowledge transfer.
• Actively participate in internal and external developer communities to share best practices.
• Continuously enhance technical skills and stay updated with new technologies.

Required Technical Skills

Core:

• Java 17–21 (expert)
• Spring Boot 3.x (expert)
• Docker & Kubernetes (expert)
• Git (expert)
• Kafka (expert)
  Databases:
• Oracle SQL (expert)
• Redis (expert)

Web Services:

• REST/HTTP (expert)
• SOAP (basic knowledge)

CI/CD & Tools:

• Jenkins, GitLab CI, Maven (expert)
• Webpack (expert)
• IDEs: IntelliJ IDEA, Visual Studio Code (expert)
• JIRA & Confluence (working knowledge)

Security:

• Awareness of OWASP principles

Soft Skills

• Strong analytical and problem-solving abilities
• Ability to manage change and support continuous improvement
• Excellent communication and collaboration skills
• Experience mentoring and supporting team members
• Team-oriented, results-driven, and accountable
• Creative and innovative approach to challenges
• Adaptable in a fast-changing technical environment

Location Requirements

• Hybrid: Poland, Warsaw
• Minimum 50% presence at the client’s office

Project Overview

The project focuses on developing and maintaining a high-availability information system using modern Java technologies and cloud-native solutions.