Senior Software Engineer at F24

City of Zagreb, , Croatia -

Full Time

Start Date

Immediate

Expiry Date

30 Sep, 26

Salary

50000.0

Posted On

02 Jul, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Java, REST APIs, JSON, JUnit, XML, XPath, BPMN 2.0, OAuth, System Design, Refactoring, Legacy Code Optimization, Automated Testing

Industry

IT Services and IT Consulting

Description

Your tasks About the job Senior Software Engineer (TopEase) Zagreb | Hybrid F24 is Europe's leading crisis management SaaS platform, trusted by governments, airlines, banks, and Fortune 500s in over 100 countries. Alongside our crisis management technology, F24 also delivers Governance, Risk & Compliance software through our TopEase platform — helping enterprise customers model and manage processes, governance structures, and compliance requirements across complex organisations. Why F24? You'll be working on technology that genuinely matters. TopEase has been in continuous development for over 30 years and is now entering a pivotal phase, with significant investment going into modernising legacy components, improving performance, and unlocking new features ahead of the upcoming TopEase 8.0 release. You'll join a specialised backend team responsible for the core engine that powers every application on the platform — working alongside highly tenured engineers, including architects with decades of domain knowledge, as well as more junior team members. The work strikes a balance between maintaining a mature, complex system and modernising its architecture and dependencies — tackling technical debt, upgrading Java dependencies, and preparing the platform for future SaaS alignment, all while continuing to ship new features. Om jobben You This is an opportunity to: ✔️ Work on a GRC platform trusted by enterprise customers globally, as part of a SaaS provider serving 5,500+ organisations worldwide ✔️Help modernise a 30-year-old core engine — real architectural influence, not just feature delivery ✔️ Get hands-on with BPMN 2.0 functionality, REST APIs, and OAuth-based integrations ✔️ Contribute directly to the TopEase 8.0 release and beyond ✔️ Learn from tenured architects while helping shape the platform's technical direction ✔️ Progress into a broader engineering leadership role within 1–2 years, with the chance to influence F24's technology strategy across regions What You'll Bring: ✔️ Strong Java backend development experience ✔️ Comfort working with REST APIs, structured data formats (JSON/XML), and automated testing (JUnit) ✔️ Experience analysing, refactoring, and optimising legacy code ✔️ Exposure to system design and architecture — you've contributed to discussions on refactoring, performance optimisation, or reducing technical debt ✔️ A product mindset is a bonus — the ability to challenge requirements and propose improvements that add customer value ✔️ A collaborative approach and comfort working across engineering, product, and QA teams Tech Stack: Java | REST APIs | JSON | JUnit | XML | XPath | BPMN 2.0 | OAuth | IntelliJ IDEA | YouTrack | Subversion (SVN) About F24 F24 is Europe's leading provider of crisis management and emergency notification software. Trusted by more than 5,500 organisations globally, we're helping businesses protect their people, operations, and reputation when it matters most. If you're looking for a role where you can make a genuine impact while helping shape a growing engineering organisation, we'd love to hear from you. Salary is paying up to €50,000 (Gross) annually. Your future team Contact Kontakt oss About us What we do: F24 is Europe’s leading Software-as-a-Service (SaaS) provider for resilience. More than 5,500 customers worldwide rely on F24’s digital solutions, which support companies and organisations through all areas of resilience. Solutions cover business messaging and service notification, emergency and mass notification, incident and crisis management, as well as governance, risk and compliance. F24 supports customers in virtually every sector ranging from energy, healthcare, industry, finance, IT, tourism and aviation to a wide variety of public organisations. Many years of international experience have made F24 experts in improving resilience with digital solutions. The company was founded in 2000 in Munich, where F24 AG’s head office is still located. Today, F24 supports companies and organisations in more than one hundred countries, via more than 20 locations in Europe and beyond. The F24 AG Board of Directors consists of F24 co-founder Christian Götz and the spokesperson Dr. Jörg Rahmer. Find out more about working at F24 here. Good reasons to work at F24: Have a tangible impact! Work in an agile environment where you make an important contribution to the success of our customers and the future of our company. Become part of our established company with an inspiring culture, flat hierarchies and our open, honest, innovative and supportive team! Grow with us: We are a company on the road to success, experiencing steady international growth. You have the opportunity to help shape our development. Take advantage of our flexible working model: We rely on a combination of presence in our offices and work from home. This way we strengthen our team spirit and at the same time gives you the opportunity to achieve the best possible balance between private and professional life.

Responsibilities

The role involves modernizing a 30-year-old core engine for a GRC platform and reducing technical debt. You will balance maintaining a complex mature system with shipping new features for the TopEase 8.0 release.