Unison Group

Solution Technical Architect AS400

Unison Group  •  Singapore, SG (Onsite)  •  1 month ago
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Job Description

We are looking for an experienced Solution / Technical Architect to lead large-scale legacy modernization initiatives, specifically migrating AS400/Mainframe systems to Java-based Microservices architecture The ideal candidate will have deep expertise in designing scalable, cloud-native solutions and hands-on experience in end-to-end transformation programs.

Key Responsibilities

  • Lead architecture and design for AS400/Mainframe to Java Microservices migration programs
  • Analyze existing legacy systems (RPG, COBOL, CL, DB2) and define modernization strategy
  • Design target architecture using Java, Spring Boot, Microservices, and APIs
  • Define migration approach: re-platforming, re-hosting, refactoring, or re-engineering
  • Drive domain decomposition and microservices design aligned with business capabilities
  • Collaborate with business stakeholders, product owners, and engineering teams
  • Ensure high availability, scalability, and performance in the new architecture
  • Define integration patterns using Kafka, REST APIs, event-driven architecture
  • Lead data migration strategy (DB2 to modern databases like PostgreSQL/Oracle)
  • Ensure adherence to security, compliance, and enterprise architecture standards
  • Provide technical leadership, governance, and mentorship to development teams
  • Support testing, deployment, and production rollout

Required Skills & Experience

  • 12+ years of IT experience with strong architecture background
  • Proven experience in AS400/Mainframe modernization projects
  • Hands-on expertise in:
    • AS400 / Mainframe (RPG, COBOL, JCL, DB2)
    • Java, Spring Boot, Microservices architecture
    • API design and integration
  • Experience with cloud platforms (AWS / Azure / GCP)
  • Strong understanding of event-driven architecture (Kafka preferred)
  • Experience with containerization (Docker, Kubernetes)
  • Strong knowledge of data migration and transformation strategies
  • Experience in banking / payments / financial services domain is highly preferred
Unison Group

About Unison Group

Unison Consulting was launched in Singapore on September 2012, the hub of the financial industry, with innovative visions in the technocratic arena. We are a boutique next-generation Technology Company with strong business-interests in Liquidity risk, Market Risk, Credit Risk and Regulatory Compliance.

Unison provides technology consulting and services to implement Risk Management and Risk Analytics System for Financial Institutions. Our services suite comprises of Techno-Functional consulting, systems integration, Business Intelligence, information management, and custom development of IT solutions, plus project management expertise for financial institutions.

We have expertise in latest cutting edge technology to achieve better total cost of ownership. Through our qualified professionals, we assist you drive your unique risk management strategies, whether that means efficient monitoring, improving risk appetite of the financial institutions, complying with regulations, or capturing growth opportunities through innovation, this is what maximizes your decision taking potential. At Unison Consulting, we view clients as partners, and our success is only measured by the success of our partners. So we put it all on the table in order to exceed expectations.

Our staff consists of young, energetic and innovative consultants who are never afraid to challenge the conventions and push the boundaries in an effort to help our clients. For every project, no matter how large or how small, we strive to not only meet your needs, but deliver a showcase in your field.

Industry
IT & Software
Company Size
51-200 employees
Headquarters
Unknown
Year Founded
2012
Website
com.sg
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