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SSSD Solutions logo

SD Solutions

Warsaw, PL

FinTech Client #4 | Senior Java Developer.

FULL TIMESENIOR LEVELENGINEERING

On behalf of FinTech Client #4, SD Solutions is looking for a talented Senior Java Developer

SD Solutions is a staffing company operating globally. Contact us to get more details about the benefits we offer.

Responsibilities:

  • Work as a Senior Java Engineer for an online card payment system that processes millions of transactions a day for 1000+ merchants in 160 currencies, with 99,995% uptime
  • Work with technologies such as: Java, Kotlin, Spring, Hibernate, SQL, Selenium, Gradle, AWS
  • Building new features and automated tests with the highest attention to code quality and Continuous Delivery rules
  • Finding and improving solutions for both technical and business issues
  • Working with highly skilled specialists with the most efficient technologies and tools

Requirements:

  • At least 5 years of hands-on Java development experience - not only coding but also problem-solving with a medium to high level of autonomy in projects
  • High level of expertise in Java and a solid knowledge of the listed technologies/tools
  • Academic degree in IT/programming field
  • Proven track record of delivering high-quality code with attention to scalability and reliability.
  • Strong analytical skills and a predisposition for innovative thinking
  • Decision-making approach and a goal-oriented attitude
  • Fluency in English
  • An open-minded and easygoing personality is a must - we like to like each other!

Advantages:

  • Technologies: JavaScript (ES7+), React
  • Experience in Datadog, OpenSearch, Sentry
  • Experience in the payments/fintech industry
  • Product-based IT company experience
  • Fluency in Polish

About the company:

A global fintech company providing unified payment infrastructure and financial services for merchants and consumers worldwide. The platform integrates multiple payment channels into a single solution, combining in-house technology development and product innovation to streamline transactions at scale.

By applying for this position, you agree to the terms outlined in our Privacy Policy. Please take a moment to review our Privacy Policy https://sd-solutions.breezy.hr/privacy-notice, and make sure you understand its contents. If you have any questions or concerns regarding our Privacy Policy, please feel free to contact us.

Pay
Not stated
Where
Warsaw, PL · Poland
Work
Not stated
Type
Full time
Posted
20 Oct, 2026
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