Mainframe Consultant

Role: Unisys Mainframe Engineer

Location: Belgium (Hybrid - 1 day/week onsite preferred)

Freelance or Permanent - Long-term contract

We are seeking a highly experienced Unisys Mainframe Engineer to support and maintain mission-critical banking applications built on the Unisys mainframe platform (2200, A-Series). This role is essential to maintaining and modernizing core banking systems and will involve working on legacy applications, performance tuning, DMS2 (Database Management System), and ALGOL/COBOL development.

As part of a collaborative engineering team, you will play a key role in ensuring the stability and ongoing enhancement of the bank's mainframe infrastructure, directly supporting critical business processes such as payments, customer management, and compliance systems.

Key Responsibilities:

• Maintain and enhance Unisys mainframe applications using ALGOL, COBOL, and DMS2.
• Perform analysis, debugging, corrections, and optimization of existing Unisys systems and applications.
• Design and implement improvements to mainframe performance and system efficiency.
• Collaborate with banking business units and technical teams to analyze functional requirements and translate them into system-level solutions.
• Participate in code reviews, unit testing, and integration testing of new functionalities.
• Support migration, upgrade, and modernization projects related to Unisys mainframe systems.
• Work on batch processing, WFL scripting, and job scheduling related to Unisys platforms.
• Ensure compliance with security, risk, and regulatory requirements in all technical deliverables.
• Provide technical guidance and mentoring to junior engineers and share best practices within the team.

Key Skills and Experience Required:

• Strong and proven experience in Unisys mainframe environments (2200 Series, A-Series).
• Expertise in DMS2 (Database Management System) including database structure design, maintenance, and performance tuning.
• Proficiency in ALGOL programming in Unisys environments (not limited to COBOL).
• Solid experience with COBOL, WFL (Work Flow Language), COMS, and other Unisys development tools.
• Deep understanding of Unisys platform administration, including system performance optimization, troubleshooting, and maintenance.
• Strong understanding of banking processes (e.g., payments, accounts, compliance) is a plus.
• Experience with legacy system modernization projects is highly desirable.
• Familiarity with migration to MicroFocus COBOL or modern platforms is an advantage.
• Excellent problem-solving skills and ability to work independently as well as in a collaborative team.
• Strong communication skills, capable of engaging with both technical and non-technical stakeholders.