Senior Java Software Security Engineer – Cloud & Open Source

Unleash the Future of Software Security — Drive Innovation and Excellence at Scale! Krakow-based opportunity with hybrid work model (3 remote days per week). 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. Your main 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 You're ideal for this role if you have: • 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 It is a strong plus if you have: • Contributions to open source projects or technical blogs • Certifications related to cloud platforms or security Language required for the role: • Fluent English, with excellent communication skills Eligibility to work in Europe: • 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.