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Senior Java developer

Java

Senior Java developer

Java
Full-time
Permanent
Senior
Hybrid

Tech stack

    English

    B2

    Java

    regular

    Hibernate

    regular

    Spring

    regular

    Kubernetes

    regular

Job description

Join a community of problem-solvers and innovators at a global leader in digital payments. You will work on complex distributed systems and help build the next generation of payment services, including solutions for real-time payments. Your work will directly impact the lives of billions of people by influencing internal standards for scalability, security, and reusability.


Responsibilities:

  • Provide technical expertise and guidance to the engineering team, including conducting code reviews, and fostering a culture of excellence in software development practices

  • Write high-quality, maintainable code for critical components, features, or modules of the software application, while also contributing to the overall codebase and enforcing coding standards and best practices

  • Analyze and solve complex technical problems, including performance bottlenecks, scalability challenges, and system failures, through systematic debugging, root cause analysis, and collaboration with cross-functional teams

  • Refactoring and improving existing codebase to enhance maintainability, extensibility, and readability, while also identifying and addressing technical debt and legacy code issues

  • Create and maintain technical documentation, including design documents, architecture diagrams, and best practices guides, to facilitate knowledge sharing, onboarding, and collaboration within the team

  • Ensure the overall quality and reliability of software products through rigorous testing practices, including unit tests, integration tests, and end-to-end tests, as well as promoting a culture of testing and quality assurance within the team


Min requirements:

  • 5+ years of relevant work experience with a Bachelor’s Degree, Advanced degree or PhD

  • Proven experience as a Senior Backend Developer

  • Strong knowledge of Java, Spring, Hibernate, and RESTful web services

  • Experience with distributed event store mechanisms such as Kafka

  • Experience with Docker, Kubernetes, and Istio

  • Experience with Agile Software Development Methodology

  • Experience with both NoSQL and SQL datastores and their query languages like SQL

  • Understanding of fundamental design principles behind a scalable application

  • Excellent problem-solving skills and attention to detail

  • Strong communication and team collaboration skills

  • Familiarity with secure coding standards e.g. OWASP is plus

  • Skilled in using development tools like Git, Maven, Jenkins including source code control, debugging and profiling



We offer:

  • Opportunity to work on bleeding-edge projects

  • Work with a highly motivated and dedicated team

  • Competitive salary

  • Flexible schedule

  • Benefits package - medical insurance, sports

  • Corporate social events

  • Professional development opportunities

  • Well-equipped office


About us:

Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.

Published: 29.09.2025
Office location

Senior Java developer

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Senior Java developer

-, Warszawa

Grid Dynamics Poland

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