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Senior Java/Kafka Developer – Payments and Financial Messaging
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Offer summary

(Summary generated by AI based on the full job description)

The project involves payment system transformation and implementation of ISO20022 standards in financial applications. Key technologies include Java, Spring Boot, Hibernate, DB2, Apache Kafka, and Docker. Responsibilities cover analysis, development, testing, and deployment of payment system changes, business collaboration, code reviews, and performance optimization. Participation in strategic financial sector projects and support for UAT and CI/CD processes is required.

you can start ASAP

Senior Java/Kafka Developer – Payments and Financial Messaging

Company: ITDS Polska Sp. z o.o.

from: 25 May 2026
to: 24 June 2026
23 100 - 30 450 złnet (+ VAT)/ mth.B2B contract (full-time)
salary not specifiedcontract of employment
Salary details
basic salary
Offer parameters
level:senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian

Requirements

Expected technologies

Java
Kafka
Maven
MongoDB
Spring Boot
ISO20022
Git
Docker
CI/CD

Our requirements

  • Minimum 5 years of professional experience in Java development
  • Strong expertise in Java, Spring, Hibernate, and DB2
  • Experience with Spring Boot, dependency injection, auto-configuration, and Spring Data
  • Hands-on knowledge of Apache Kafka (producers, consumers, Kafka Streams, Kafka Connect)
  • Familiarity with RESTful API development, and microservices architectures
  • Knowledge of containerization tools like Docker
  • Proficiency with Git, CI/CD pipelines (preferably GitLab CI)

Optional

  • Past experience in financial services, banking technology, or payments industry is a plus
  • Understanding of financial messaging standards such as ISO 20022, SWIFT, CBPR+ or FIN
  • Experience with IBM MQ / JMS - queue managers and channels
  • Infrastructure as Code expertise - provisioning and managing infrastructure

Your responsibilities

  • Collaborate in requirements gathering sessions with business stakeholders to ensure technical solutions meet business needs
  • Analyze, design, and plan impactful technical changes within complex payment systems
  • Develop, test, and deploy modifications to legacy applications aligned with ISO20022 standards
  • Conduct code reviews, support UAT processes, and assist with seamless code releases
  • Apply creative problem-solving to improve the tech stack and optimize system performance
  • Reverse engineer complex code bases to implement high-impact modifications effectively

About the project

As a Senior Java/Kafka Developer – Payments and Financial Messaging, you will be working for our client, a leader in the financial services industry, dedicated to transforming payment systems and implementing cutting-edge messaging standards. Join a dynamic team focused on adapting legacy applications to non-discretionary ISO20022 standards, enabling secure and efficient financial messaging worldwide. This role offers an exciting pathway for career growth within a forward-thinking organization committed to innovation.

#GETREADY to meet with us!

ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people.
We would like to meet you. If you are interested please apply and attach your CV in English or Polish, including a statement that you agree to our processing and storing of your personal data.

ITDS’s Whistleblower Procedure

📌 You can report violations in accordance with ITDS’s Whistleblower Procedure available here: https://itds.pl/wp-content/uploads/2025/03/INFORMATION-ON-PROCEDURE-FOR-REPORTING-BREACHES-AND-PROTECTION-OF-WHISTLEBLOWERS-AT-ITDS-POLSKA.pdf
Company

What we offer

  • Stable and long-term cooperation with very good conditions
  • Enhance your skills and develop your expertise in the financial industry
  • Work on the most strategic projects available in the market
  • Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years
  • Participate in Social Events, training, and work in an international environment
  • Access to attractive Medical Package
  • Access to Multisport Program
  • Access to Pluralsight
  • Flexible hours

Benefits

  • sharing the costs of sports activities
  • private medical care
  • flexible working time
  • fruits
  • integration events
  • corporate gym
  • saving & investment scheme
  • no dress code
  • coffee / tea
  • drinks
  • christmas gifts
  • birthday celebration
  • sharing the costs of a streaming platform subscription
  • access to +100 projects
  • access to Pluralsight

Recruitment stages

  • 1.
    online interview
  • 2.
    online interview

ITDS Polska Sp. z o.o.

ITDS supports financial service providers to take the next steps.
We identify what’s possible, every day. Opportunities in the areas of technology, organization, and digitization.
We see where banks, insurers, payment companies, or fintech can go and how they can get there.
That’s why we want to stimulate you to ramp up your ambition. Forget what you perceive as restraints and step towards the new reality.
ITDS in Poland - Pure player in new Technologies & Financial Industry
+300 IT implementation professionals
+20 clients in the Banking, Insurance, Payment & Fintech Industry
ITDS excels in digital strategy delivery and implementation of best-of-breed lending solutions. ITDS has delivered successful strategic projects throughout Europe since 1998. We combine the experience we’ve accumulated with in-depth knowledge of technologies, business processes, and EU legislation to unlock new business opportunities.

This is how we work

Senior Java/Kafka Developer – Payments and Financial Messaging
23.1k–30.4k zł / mth. (B2B)
I apply to:
ITDS Polska Sp. z o.o.
Warszawa, Masovian
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