Unison Consulting
Solution Architect - AS400/Mainframe to Microservices Migration
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Role Overview
We are looking for a Solution/Technical Architect with strong experience in migrating legacy AS400/Mainframe systems to modern Java-based microservices architecture. The role involves driving end-to-end architecture, modernization strategy, and implementation for large-scale enterprise systems.
Key Responsibilities
- Define target architecture for Mainframe/AS400 to Java microservices migration
- Design scalable, resilient, and cloud-native solutions
- Assess legacy systems and define migration strategy (rehost, refactor, re-architect)
- Lead decomposition of monolithic applications into microservices
- Define API, integration, and data flow architecture
- Ensure smooth migration with minimal business disruption
- Drive adoption of Java, Spring Boot, REST APIs, and microservices best practices
- Implement containerization and orchestration (Docker, Kubernetes)
- Define data migration, transformation, and reconciliation strategies
- Design event-driven and messaging-based architectures (Kafka, MQ)
- Collaborate with business and technical stakeholders
- Provide technical leadership and mentor development teams
- Conduct architecture reviews and ensure governance standards
- Ensure security, scalability, and performance of solutions
Requirements
Required Skills
- Strong experience in AS400/Mainframe systems
- Proven experience in legacy system modernization and migration
- Expertise in Java, Spring Boot, and Microservices architecture
- Experience with REST APIs and distributed systems
- Knowledge of Docker, Kubernetes, and cloud platforms (AWS/Azure/GCP)
- Strong understanding of data migration and system integration
Preferred Skills
- Experience in Banking/Financial Services domain
- Knowledge of messaging systems (Kafka, IBM MQ)
- Familiarity with DevOps tools and CI/CD pipelines
- Exposure to Agile methodologies
Unison Consulting Singapore Office
1 Changi Business Park Crescent, , Plaza 8 #03-06 Tower A, Singapore, , Singapore, 486025
Unison Consulting Singapore Office
#12-00, 63 Market Street, Bank of Singapore Center, Singapore, , Singapore, 048942
What you need to know about the Singapore Tech Scene
The digital revolution has driven a constant demand for tech professionals across industries like software development, data analytics and cybersecurity. In Singapore, one of the largest cities in Southeast Asia, the demand for tech talent is so high that the government continues to invest millions into programs designed to develop a talent pipeline directly from universities while also scaling efforts in pre-employment training and mid-career upskilling to expand and elevate its workforce.
