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Senior Java Software Security Engineer – Cloud & Open Source
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Offer summary

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

The project focuses on software security within the financial sector using Java 21, Spring Boot 3.x, GKE, Cloud Spanner, Kafka and OAuth2/OpenID Connect protocols. Responsibilities include implementing scalable cloud-native solutions, developing open source projects, identifying security risks, and team mentoring. Required skills cover GCP and technical leadership. Benefits include private medical care, Multisport card, and Pluralsight access.

you can start ASAP

Senior Java Software Security Engineer – Cloud & Open Source

Company: ITDS Polska Sp. z o.o.

from: 22 May 2026
to: 21 June 2026
24 150 - 32 550 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior • expert
working mode:hybrid
location:Kraków, Lesser Poland
Kraków, Lesser Poland

Requirements

Expected technologies

Cloud Spanner
GCP
GKE
Java
JVM
Kafka
OAuth2
OpenID Connect
postgres
Pub/Sub
Spring Boot

Our requirements

  • 7 or more years of experience in Java development, software security, or related fields
  • Proven expertise with JVM internals, memory management, and the Spring Boot ecosystem
  • Hands-on experience working with GCP (Google Cloud Platform) cloud services
  • Strong understanding of cloud-native architectures, open source tools, and modern security protocols
  • Ability to create impactful solutions that make banking better, faster, and safer
  • Leadership skills to influence teams and foster a culture of continuous learning and high standards
  • Experience identifying security risks and adopting innovative tech or processes to address them
  • A holistic, generalist mindset capable of applying thinking across multiple domains
  • Fluent English, with excellent communication skills

Optional

  • Contributions to open source projects or technical blogs
  • Certifications related to cloud platforms or security

Your responsibilities

  • Take ownership of code delivery, contributing hands-on to complex security solutions in production environments
  • Develop and contribute to open source projects, blogs, or GitHub repositories showcasing expertise
  • Leverage deep knowledge of Java 21+ (including Virtual Threads/Project Loom), Spring Boot 3.x, and modern JVM internals
  • Design and implement scalable cloud-native architectures using GKE, Cloud Spanner, Postgres, and event-driven systems like Kafka or pub/sub
  • Integrate Zero Trust Architecture and OAuth2/OpenID Connect at the code level to enhance security protocols
  • Translate business requirements into robust technical solutions, driving automation from the outset
  • Lead and influence teams by sharing knowledge, mentoring peers, and raising the bar on quality and efficiency
  • Stay abreast of industry shifts, emerging trends, and innovative practices, guiding teams toward forward-thinking implementation
  • Identify and mitigate software security risks, promoting best practices and continuous improvement

About the project

As a Senior Java Software Security Engineer – Cloud & Open Source, you will be working for our client, a global leader in innovative security solutions within the financial industry. You will play a pivotal role in adopting engineering excellence across their Software Security platform, directly contributing to cutting-edge cloud-native solutions, open-source initiatives, and high-impact program deliveries. This is a unique chance to shape the security landscape while advancing your career in a dynamic, high-tech environment.
Only candidates with an existing legal right to work in the European Union will be considered for this role.

#MAKEYourCareerBETTER

Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.
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.
    first online interview
  • 2.
    second 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 Software Security Engineer – Cloud & Open Source
24.1k–32.5k zł / mth. (B2B)
I apply to:
ITDS Polska Sp. z o.o.
Kraków, Lesser Poland
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