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Senior Java Backend Developer – Financial Technology
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Offer summary

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

The project focuses on delivering solutions for the financial sector, primarily building high-performance backends with occasional frontend support. Required stack includes Java, Kafka, REST API and PostgreSQL, with Angular as a useful add-on. Responsibilities cover designing, developing and maintaining scalable backend applications, optimizing performance and security, participating in code reviews, troubleshooting complex issues and occasional front-end component development.

you can start ASAP

Senior Java Backend Developer – Financial Technology

Company: ITDS Polska Sp. z o.o.

from: 28 September 2026
to: 28 October 2026
18 900 - 22 470 złnet (+ VAT)/ mth.B2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote
location:Warszawa, Masovian
Warszawa, Masovian

Requirements

Expected technologies

Kafka
PostgreSQL

Optional technologies

Angular
Java

Our requirements

  • Minimum 5 years of experience in Java backend development.
  • Strong knowledge of Kafka, REST API design, and PostgreSQL.
  • Proven ability to deliver high-quality, scalable solutions in a fast-paced environment.
  • Good command of Polish.
  • Communicative level of English for effective collaboration within international teams.

Optional

  • Experience with or knowledge of Angular.
  • Knowledge of financial or banking industry best practices.
  • Certifications in Java, cloud technologies, or related fields.

Your responsibilities

  • Design, develop, and maintain scalable backend applications using Java, Kafka, REST APIs, and PostgreSQL.
  • Collaborate with cross-functional teams to deliver innovative financial technology solutions.
  • Optimize system performance, reliability, and security to meet high industry standards.
  • Participate in code reviews, ensuring adherence to best practices and high-quality coding standards.
  • Occasionally develop front-end components with Angular to support integrated features.
  • Troubleshoot and resolve complex technical issues efficiently, minimizing system downtime.
  • Stay current with emerging technology trends and propose innovative enhancements for existing systems.

About the project

As a Senior Java Backend Developer, you will be working for our client, a leading financial institution committed to transforming banking experiences through cutting-edge technological innovation. You will contribute to building robust, high-performance backend systems and occasionally enhance front-end features with Angular, driving impactful digital solutions in the financial sector. This role provides a dynamic environment for professional growth and technological advancement.
Unleash innovation — transform UI development with cutting-edge AI-powered components!
Warszawa-based opportunity with hybrid work model.
Only candidates with an existing legal right to work in the European Union will be considered.

This is how we organize our work

This is how we work

at the client's siteagilescrum

#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 Backend Developer – Financial Technology
18.9k–22.5k zł / mth. (B2B)
I apply to:
ITDS Polska Sp. z o.o.
Warszawa, Masovian
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