Kerja Sepenuh Masa, Senior Software Developer (COBOL - Java) di Amaris Consulting - Maukerja

Job Description

We are looking for a Senior Software Developer (COBOL / Java) to support a system modernization initiative, contributing to the migration of legacy COBOL applications toward a Java-based architecture. The role combines hands-on Java development with legacy COBOL analysis, technical solution design, testing, and migration delivery to ensure business logic continuity throughout the transition.

Key Responsibilities

• Participate in client workshops to capture requirements, understand existing COBOL system behavior, and translate them into target technical solutions.
• Prepare Product Design Documents and Technical Specifications for Java development, system integration, migration work packages, and change requests.
• Support Business Analysts with technical analysis, solution proposals, impact assessments, and development estimations.
• Analyze and reverse-engineer legacy COBOL applications and business logic to support migration toward the target Java architecture.
• Design and develop medium-to-complex Java applications using Java EE / Spring technologies.
• Perform impact analysis, technical estimation, and risk assessment for functional stories, migration activities, and change requests.
• Support migration risk assessment and mitigation, including data integrity, parallel runs, system compatibility, and cutover.
• Perform Unit, Integration, and System Testing, including validation of Java applications against existing COBOL system behavior.
• Provide technical guidance to offshore and distributed development teams.
• Support clients during UAT, including technical enquiries, batch job execution in simulation environments, and issue resolution.
• Collaborate with Project Managers, Project Leads, Business Analysts, developers, testers, and production support teams throughout project delivery.
• Maintain technical and domain-level artifacts in line with established project methodology.

About You

• Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related field.
• 5+ years of hands-on Java development experience, with strong knowledge of Java EE and/or Spring.
• Experience working with COBOL applications, including the ability to read, understand, or analyze existing COBOL code and business logic.
• Strong experience designing, developing, and maintaining medium-to-complex applications.
• Experience translating business requirements and legacy system logic into technical specifications and target solution designs.
• Experience performing impact analysis, development estimation, and technical risk assessment.
• Experience with Unit, Integration, and System Testing.
• Comfortable working directly with clients and supporting UAT and technical issue resolution.
• Experience providing technical guidance to offshore or distributed development teams.
• Strong communication, analytical, problem-solving, and stakeholder-management skills.

Nice to Have

• Experience in COBOL-to-Java, mainframe-to-Java, or other legacy modernization and migration projects.
• Hands-on COBOL development experience within mainframe or core banking environments.
• Experience with batch processing, overnight batch jobs, and target batch architecture.
• Experience within core banking, securities, or financial services environments.
• Business/domain knowledge of securities operations, including pre-trade and post-trade processes or broader capital markets.
• Experience working across legacy and modern technology environments involving multiple systems and cross-functional delivery teams.