SD Solutions

FinTech Client #4 | Senior Java Developer

Warsaw, PLFull TimePosted Oct 6, 2026

Requirements at a glance

FinTech Client #4 | Senior Java Developer at SD Solutions is a full-time role based in Warsaw, PL. The posting asks for 5+ years of experience. It does not mention visa sponsorship. Key skills include JavaScript, Java, React, and Elasticsearch. Applications are submitted through Breezy HR.

Experience
5+ years
Visa sponsorship
Not mentioned in the posting
Application platform
Breezy HR

Skills in this posting

  • JavaScript
  • Java
  • React
  • Elasticsearch
  • Kotlin
  • SQL
  • Spring
  • AWS

Highlighted skills appear in the posting's requirements.

Extracted automatically from the job description. Confirm details in the full posting below.


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.

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