Now
Senior Cobol/ Java Developer
Find your best career opportunity and #growITwithus!
Job description
We are looking for an experienced COBOL/Java Developer to support a major legacy modernization initiative. The role involves rewriting and transforming a long-standing COBOL-based application into a modern Java-based architecture. You will work as part of a cross-functional development team and collaborate closely with analysts, architects, and stakeholders to ensure functional and technical consistency throughout the migration process. This is an exciting opportunity for a developer who understands the structure and logic of COBOL systems and is eager to help bring mission-critical applications into a modern Java ecosystem.
#LI-DT1
#LI-Remote
Your responsibilities
• Analyze and understand the existing COBOL codebase, data structures, and business logic
• Design and implement equivalent functionality in Java, following modern software development practices
• Collaborate with architects and technical leads to define the migration approach, including decomposition, refactoring, and reengineering strategies
• Work with QA and testing teams to validate functionality, performance, and data consistency between legacy and modernized systems
• Support integration with adjacent systems and interfaces during and after migration
• Document design decisions, code changes, and system behavior for maintainability and knowledge transfer
Our requirements
To succeed at this job, you must have:
• 5+ years of software development experience
• Hands-on experience with COBOL, ideally within retail, supply chain, or ERP-related systems
• Strong Java development experience using Spring/Spring Boot, REST APIs, and enterprise integration patterns
• Experience in legacy modernization or migration projects is highly desirable
• Familiarity with database systems (e.g., DB2, Oracle, or PostgreSQL)
• Experience working with version control (Git), CI/CD pipelines, and agile development practices
• Knowledge of legacy integration techniques and middleware is a plus
• Strong analytical and problem-solving abilities
• Clear communication skills for translating technical details to functional teams
• Adaptability to work with both legacy and modern technologies
• Team player with a proactive and self-driven mindset
• Comfortable working in cross-functional and international teams
• English (mandatory): Very good verbal and written communication skills
• German language skills are a plus, but not required
Benefits
• Internal Mobility Program – enjoy many opportunities for career growth, job rotations, diversity of projects & technologies
• Referral Program – enjoy cooperation with your colleagues and get a bonus!
• 5/10 Years NATEK Club – we offer long-term cooperation and celebrate each fifth-year cooperation anniversary with gifts
• NATEK CSR Events & team buildings – enjoy our values: accountability, partnership and expertise and #workITwithus
• Education – benefit from our know-how, learning courses and certificates and IT events – be part of the community of leaders of the industry and take part as a speaker or a visitor
• Multisport
• Technical and Personal training
• Language courses
Additionally only for employment contract:
o Cafeteria
o Financial Contribution for Meals
o Life insurance
o Bonuses for Personal Events
o Day off for volunteering
Meet NATEK talents
And check our social media:
In NATEK you will have a chance to share your passions with other coworkers: Oksana and Wojtek made some kilometers for our #ActivityForCharity challenge.
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