Senior Legacy Systems Engineer - Mainframe & Modernization
Marvel Consulting Group Oy
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Job summary
Marvel Consulting Group Oy in Finland seeks an experienced Senior/Lead software developer who thrives on legacy systems. You will work independently in client projects, maintain and modernize business-critical applications, and ensure reliable operation of core back-end processes.
You will analyze existing solutions, implement safe changes, and share best practices. The role may be permanent or project-based, offering opportunities to influence complex systems and collaborate across stakeholders.
Qualifications
- 5+ years of experience in software development for legacy systems.
- Experience maintaining and developing business-critical systems.
- Strong expertise in one or more legacy technologies.
- Understanding of databases, integrations, and batch processes.
- Experience in system modernization and migrations is advantageous.
- Ability to work independently on client projects and communicate solutions clearly.
Responsibilities
- Designing, developing, and maintaining business-critical legacy systems.
- Developing and enhancing COBOL, mainframe, or other legacy applications.
- Planning and implementing system modernization and migrations.
- Designing integrations between legacy and modern systems.
- Improving performance, security, and reliability of applications.
- Analyzing and resolving production issues.
- Collaborating with clients and development teams on solutions.
Skills
Tools
Job description
Marvel Consulting Group Oy in Finland seeks an experienced Senior/Lead software developer who thrives on legacy systems. You will work independently in client projects, maintain and modernize business-critical applications, and ensure reliable operation of core back-end processes.
You will analyze existing solutions, implement safe changes, and share best practices. The role may be permanent or project-based, offering opportunities to influence complex systems and collaborate across stakeholders.
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