Senior Java Developer / Application Architect

Senior Java Developer / Application Architect

Location: Warsaw (Hybrid: 3 days in the office)

Start Date: ASAP / Within 1 Month / Flexible

Contract Type: B2B (170–200 PLN/h + VAT)

Role Overview

We are looking for an experienced Senior Java Developer / Application Architect to play a key role in enhancing technical maturity, architectural standards, and the overall quality of our custom-built applications. You will combine hands-on development expertise with an architectural mindset, guiding the team toward best practices and modern engineering approaches.

Your Responsibilities:

• Design and implement application components using Java, Spring Boot, and cloud-native technologies.

• Drive architectural improvements and contribute to long-term solution designs.

• Collaborate with developers, product owners, and stakeholders to refine requirements and ensure high-quality outcomes.

• Mentor team members on software engineering best practices and clean architecture principles.

• (Optional) Support requirements engineering activities to align business needs with technical solutions.

  
  

Technology Stack

• Backend: Java, Spring Boot

• Frontend: Angular, JavaScript/TypeScript

• Cloud: Azure

• DevOps: GitLab CI/CD, Docker, Infrastructure as Code

• Architecture: REST API, Microservices

• Databases: SQL / relational

  
  

Requirements

• Minimum 7-8 years of experience.

• Strong expertise in Java and the Spring ecosystem.

• Solid understanding of architectural design patterns, distributed systems, and API design.

• Hands-on experience with CI/CD, containerization (Docker), and cloud platforms (Azure preferred).

• Ability to lead technical discussions, mentor others, and drive architectural improvements.

• Excellent communication skills in English

  
  

What We Offer

• B2B contract via Experis.

• Benefits: MultiSport Plus, premium Medicover healthcare, group insurance, access to e-learning platforms.