Senior Java System Architect & Tech Lead (Hybrid Warsaw)

KUBO; Województwo mazowieckie; Hybride; PLN 180 000 - 260 000; Plein temps

Résumé du poste

KUBO is seeking an experienced System Architect with strong Java development skills to join a technology team building modern, scalable IT systems for a leading insurance company.

The role blends hands-on coding (about 75%), architecture leadership, and guiding the development team to ensure high software quality. You will design microservices, drive technical improvements, and work with cross-functional teams in a hybrid Warsaw setting.

Qualifications

• At least 5 years designing and building web-based systems.
• Proven experience designing microservices architectures.
• Strong knowledge of architectural and integration patterns.
• Extensive experience with API design and system integration.
• Practical knowledge of Domain-Driven Design (DDD).
• Experience with relational databases, SQL, query optimization.
• Practical knowledge of Event-Driven Architecture.
• Experience implementing end-to-end observability.
• English proficiency at B2 level, Polish language at least C1.

Responsabilités

• Act as a Technical Lead within a Scrum team, providing technical guidance and supporting the team in day-to-day development.
• Actively develop and implement business requirements using Java.
• Design, develop, and evolve system architectures, microservices, and distributed systems.
• Collaborate with the Product Owner and business stakeholders to clarify requirements and translate them into technical solutions.
• Define and maintain coding standards, architectural principles, and integration guidelines.
• Conduct code reviews and ensure high standards of code quality, maintainability, and performance.
• Mentor developers and support the continuous development of the team's technical skills.
• Troubleshoot complex technical issues and help the team identify effective solutions.
• Design and oversee system integrations and API architecture.
• Ensure that solutions meet performance, security, scalability, and reliability requirements.
• Collaborate with other Scrum teams, architects, DevOps engineers, and integration specialists.
• Contribute to technology selection, architectural decisions, and technical risk assessments.
• Apply cloud technologies, preferably Microsoft Azure, where appropriate.
• Explore and leverage Agentic AI and other AI-powered tools in the software development lifecycle to improve productivity, automate tasks, and support technical decision-making.
• Availability to work in Warsaw in a hybrid model, with at least 3 days per week in the office and 2 days remotely.

Connaissances

Java development

Technical leadership

Microservices design

API design

Domain-Driven Design

Event-driven architecture

SQL databases

Code reviews

Mentoring

Azure cloud

Outils

Azure

Description du poste

KUBO is seeking an experienced System Architect with strong Java development skills to join a technology team building modern, scalable IT systems for a leading insurance company.

The role blends hands-on coding (about 75%), architecture leadership, and guiding the development team to ensure high software quality. You will design microservices, drive technical improvements, and work with cross-functional teams in a hybrid Warsaw setting.