GFT Technologies
GFT Technologies
GFT Technologies is a technology and digital transformation company working across consulting, insurance, and cybersecurity. Its Cookiebot platform helps organizations collect and manage user consent while supporting compliance with privacy regulations including the GDPR and CCPA. The company’s solutions are designed to integrate with existing digital environments and are used by more than 600,000 customers worldwide to handle personal data with greater transparency and control.

Senior COBOL and Java Modernization Engineer

Join GFT Technologies as a COBOL and Java modernization engineer supporting digital transformation across banking, insurance, and industry. Design Java solutions and integrate AI-assisted development to modernize legacy systems.

Description

  • Analyze COBOL programs and JCL job streams to understand functional flows, dependencies, datasets, return codes, and existing business logic
  • Design and implement target solutions with Java, Spring Boot, and Spring Batch
  • Define jobs, steps, readers, writers, chunk processing, restart procedures, and fault-tolerance mechanisms
  • Create and maintain functional and technical specifications using Spec-Driven Development approaches
  • Build and optimize agents, prompts, skills, and automations with AI tools for assisted software development
  • Validate functional equivalence between legacy applications and new implementations
  • Design testing strategies covering Golden Master testing, regression testing, and automated validation
  • Analyze quality, productivity, and efficiency metrics for the modernization pipeline
  • Identify continuous-improvement opportunities across the processes, tools, and frameworks in use
  • Work closely with specialists in mainframe environments and enterprise architecture

Requirements

  • More than five years of professional Java development experience
  • Professional English proficiency for documentation and international collaboration
  • Strong production experience with Java, Spring Core, Spring Boot, Spring Data, and Spring Batch
  • Experience developing high-volume batch applications and critical processing workflows
  • Ability to analyze and understand existing COBOL and JCL code
  • Knowledge of fixed-length files, embedded SQL, batch processing, error and return-code handling, reprocessing, and failure recovery
  • Experience with regression testing, Golden Master testing, test-case design, Mutation Testing, and code coverage
  • Experience applying AI to software development, including prompt engineering, development agents, LLM output evaluation, assisted code generation, and hallucination and quality control
  • Regular use of Git, Bash, Python, and Linux or terminal environments
  • Previous experience in banking and mainframe environments is desirable
  • Knowledge of z/OS, DB2, CICS, IMS, and Control-M is desirable
  • Previous participation in COBOL-to-Java migration projects is desirable
  • Knowledge of corporate batch frameworks used in the financial sector is desirable
  • Experience building advanced agent pipelines and automations for software development is desirable
  • Knowledge of executable-specification methodologies or Spec-Driven Development is desirable
  • Experience analyzing costs, token consumption, and quality metrics in AI-based solutions is desirable

Benefits

  • Hybrid or remote home-working options
  • Flexible working hours
  • Intensive Fridays
  • Personalized training and development plan
  • Training programs
  • Life insurance
  • Remote-work support
  • Corporate allowance for meals, transportation, health insurance, childcare, and training combined with flexible compensation
  • Relocation package including financial support, advice, and visa sponsorship where applicable
  • Referral program
  • Wellness program covering nutrition, physical activity, and mental health
  • Wellhub discounts
  • Free psychological support service
  • Smart offices
  • Events
  • Values awards
  • Inspirational talks
  • International corporate culture

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