(Haken) Java Architect - Tech Lead - European Bank Tokyo
About the job
Join a major European bank undergoing a large-scale technology transformation. As a Java Architect / Tech Lead, you will play a pivotal role in modernizing legacy banking systems, migrating from older technologies such as VBA to modern, cloud-ready Java architectures. This role goes beyond maintenance-you will influence architectural direction, challenge design assumptions, and collaborate with high-performing engineering teams to shape enterprise-scale platforms used across global banking operations.
Key Responsibilities
- Analyze and decompose legacy platforms built on outdated technologies such as VBA
- Design and lead migrations to modern, enterprise-grade Java architectures
- Define clean-code standards, documentation practices, and development guidelines
- Architect scalable, maintainable, and extensible systems for long-term use
- Drive system redesign from monolithic structures to modular or microservice-based architectures
- Collaborate closely with business stakeholders and cross-functional technical teams
- Act as a technical authority, providing guidance and mentoring within the engineering group
- Contribute to long-term system roadmaps and enterprise architecture blueprints
Required Skills and Qualifications
Experience:
- Extensive experience with enterprise-level Java development
- Proven track record modernizing or migrating legacy systems (e.g., VBA, desktop or scripting-based platforms)
- Strong background in system architecture, application design, and large-scale system redesign
- Experience working within financial services, banking, or insurance technology environments
- Ability to analyze complex systems and redesign them pragmatically for modern platforms
Soft Skills:
- Strong communication skills with confidence to assert and defend technical opinions
- Ability to challenge assumptions constructively and contribute to architectural decision-making
- Collaborative mindset suited to high-productivity, enterprise engineering teams
- Mentoring and leadership capability within technical groups
Language Requirements:
- Japanese: Business level (for internal communication)
- English: Intermediate to Business level
Preferred Skills & Qualifications
- Experience working on long-term transformation programs rather than maintenance projects
- Exposure to cloud-native or cloud-ready system design
- Interest in transitioning into permanent roles following successful contract engagement
About the Company
Our client is one of the largest and most established banks in the United Kingdom, with a strong global presence across consumer, commercial, and private banking. Operating in over 38 countries with more than 78,000 employees, the organization is known for its enterprise-scale systems, long-term stability, and commitment to innovation.
Why You'll Love Working Here
- High probability of conversion to a permanent role
- Participation in a long-term transformation program, not routine maintenance
- Opportunity to influence and shape enterprise architecture blueprints
- Work within a globally recognized financial institution
- Exposure to complex, large-scale systems with real business impact
Don't Miss Out - Apply Now!