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DefineX Logo DefineX · IT - Software Development

Senior Java Developer

Turkey, İstanbul · Job Posted January 15, 2026
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Job Description

DefineX is a next-generation consulting house and venture builder, helping financial institutions shape bold visions and turn them into real-world impact focusing on two core themes: Winning in Tech and Winning in Digital. At the heart of everything we do? Our people: DefineXers. A diverse team of consultants, engineers, designers, and strategists driven by purpose and united by a shared ambition: to build what’s next.

Job Responsibility

  • Coding activities on a large-scale technology transformation project which includes from mainframe to microservices, high-tech platform transformations
  • Primary responsibilities in software development lifecycle, including meeting clients to determine requirements, analysis, design, development, testing, and implementation of user interfaces and backend services

Requirements

  • BS or MS in Computer Engineering, Software Engineering, Mathematics Engineering or other disciplines
  • Minimum 4 years of experience in Software Development using Java and JavaScript
  • Full stack development experience in Agile based end-2-end delivery
  • Strong knowledge of OOP, Design Patterns, Test Driven Development
  • Experience in Java, Spring Boot, Microservices Architecture, JavaScript technologies is must
  • Eligible to work in Turkey

Nice to have

  • Experience in Angular, React or Vue technologies
  • Experience in financial services knowledge
  • Team Management, risk management, client management experience is nice to have

What we offer

  • A mentally and physically enabling environment
  • Growth and Development with training and support and a Growth Coach
  • Independence and Ownership in creative and challenging projects
  • 20 vacation days per annum
  • Certain hours a year to volunteer and organize office volunteer programs with local NGOs
  • Competitive private health and life insurance coverage
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