Full Stack Developer – Java, Kotlin & React
Offer summary

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

The project focuses on the global financial markets technology sector, implementing the full software development lifecycle for critical financial applications driving digital transformation. The stack includes Java, Kotlin, JavaScript/React, Git, SQL and REST APIs. Responsibilities cover requirements analysis, development and support, managing technical debt, and team collaboration to improve code quality. Engagement in strategic financial projects with comprehensive benefits package is offered.

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Full Stack Developer – Java, Kotlin & React

Company: ITDS Polska Sp. z o.o.

from: 11 September 2026
to: 11 October 2026
23 100 - 28 350net (+ VAT)/ mth.B2B contract (full-time)
17 500 - 20 000gross/ mth.contract of employment
Salary details
basic salary
Offer parameters
level:mid
working mode:hybrid
location:Kraków, Lesser Poland
Kraków, Lesser Poland

Requirements

Expected technologies

Java
Kotlin
JavaScript
React.js
Unix
Git
SQL

Operating system

Linux

Our requirements

  • At least 3 years of experience in software development, ideally within financial technology.
  • Demonstrable experience in Java, Kotlin, and JavaScript/React (client & server).
  • Good understanding of Unix environments and database concepts from a consumer perspective.
  • Familiarity with HTTP APIs (e.g., RESTful APIs).
  • Proficiency in Git and SQL.
  • Willingness to learn multiple programming languages.
  • Good command of English (team communication is in English).

Optional

  • Experience with JavaScript/React.
  • Experience with Kotlin.

Your responsibilities

  • Collaborate within a team of 4–6 members and a dedicated product owner to deliver iterative features into production.
  • Analyze business requirements, break them down into stories, and implement solutions accordingly.
  • Provide ongoing support for deployed applications, embracing a "build it, support it" philosophy.
  • Identify areas of technical debt and balance efforts between new functionality and system health.
  • Design compliant solutions for new features, adhering to technology standards and constraints.
  • Pair with team members to enhance code quality and knowledge sharing.

About the project

As a Full Stack Developer, you will be working for our client within the Global Markets Technology sector. You will contribute to developing and supporting critical financial applications, participating in all phases of the software development lifecycle. This role offers a unique chance to work on impactful projects that drive digital transformation in the financial industry.
Unleash innovation in financial technology — shape the future with scalable, dynamic solutions!
Kraków-based opportunity with hybrid work model (up to 3 remote days per week).
Only candidates with an existing legal right to work in Europe will be considered for this role.

#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

Full Stack Developer – Java, Kotlin & React
17.5k–20k zł / mth. (CoE), 23.1k–28.4k zł / mth. (B2B)
I apply to:
ITDS Polska Sp. z o.o.
Kraków, Lesser Poland
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