System Engineer (COBOL & Java)

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Segula Technologies Services GmbH in Stuttgart seeks a System Engineer who can bridge legacy COBOL on mainframes with modern Java applications to sustain and modernize an insurance platform. You will maintain COBOL systems, develop Java backend and integration layers, contribute to migrations, and ensure quality via code reviews, testing, and documentation while providing production support. This is a permanent onsite role with a flexible home office option and occasional travel in a collaborative, learning driven environment with a competitive salary. To apply, emphasize COBOL and mainframe experience, Java 8+ backend skills, DB2/Oracle/SQL, the ability to navigate complex codebases, German B2 and English, plus concrete modernization or migration examples and a tailored resume and cover letter.

Company Description

Segula Technologies Services GmbH, part of Segula Technologies, a globally operating engineering group in the automotive, energy, rail, shipping and aviation sectors with over 10,000 employees, is an independent development and consulting company with approximately 320 employees serving customers in the automotive, commercial vehicle and aviation industries. Its core competencies lie in system development services, encompassing design and concept, calculation and simulation, mechanical engineering, construction, electrical engineering, electronics, integration, ergonomics, as well as prototyping and validation.

We are looking for an experienced System Engineer to support the enhancement, modernization, and ongoing maintenance of a insurance application. Our system landscape includes long-standing COBOL-based applications as well as newer Java-based solutions. In this role, you will work on both legacy and modern platforms, helping ensure continuity, stability, and future readiness of our business-critical systems.

Job Description

• Maintain, enhance, and optimize existing COBOL applications running on mainframe environments.
• Develop and extend Java-based applications, including integration layers and backend services.
• Participate in the migration or modernization of legacy COBOL systems using Java and related technologies.
• Ensure the quality and reliability of applications through code reviews, testing, and documentation.
• Support production systems, troubleshoot issues, and implement fixes in a timely manner.

Qualifications

• Experience in COBOL development (mainframe environment preferred).
• Solid knowledge of Java (Java 8 or higher), including object-oriented programming and backend development.
• Familiarity with relational databases (e.g., DB2, Oracle, SQL).
• Ability to understand and maintain complex existing codebases.
• Strong problem-solving skills and structured working style.
• Good communication skills in German (Minimum B2) and English.

Additional Information

• Permanent position in a dynamic and innovative engineering environment.
• Candidates can do work from home and only has to travel to office on need basis.
• Collaborative team culture with continuous learning and development support.
• Attractive salary package based on experience and qualification.