Software Architect – Java, Spring Boot & Microservices

About the role

Joyful Craftsmen AG is seeking a senior‑level Software Architect to lead the modernization of legacy Java EE applications into a Spring Boot‑based microservices landscape. The role is part of a long‑term strategic program focused on target architecture development and migration across a complex enterprise environment.

Key responsibilities

• Analyse business requirements together with product teams and stakeholders to define architectural solutions.
• Design and maintain target, transition and solution architectures for migrating monolithic Java EE systems to microservices.
• Create migration strategies, deployment concepts and technical prototypes to support implementation.
• Advise development teams on technology choices, integration patterns and security considerations.
• Collaborate with multiple agile teams in a release train to ensure architectural consistency.

Required profile

• University degree in Computer Science or equivalent.
• At least 5 years of experience as a Java Enterprise Architect (senior) or 8 years for expert level.
• Strong communication and stakeholder‑management skills in German and English (C1+).
• Experience in large‑scale transformation projects within complex enterprises.

Required skills

• Java Enterprise technologies
• Spring Framework and Spring Boot
• Design of microservices architectures
• Enterprise integration, interfaces and data architecture
• Cloud‑native architectural principles