{"id":2369832,"url":"https://alion.io/job/f24-software-engineer-customization","title":"Software Engineer (Customization)","company":{"id":695974,"name":"F24","domain":"f24.com","url":"https://alion.io/company/f24","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Personio","truth_index":{"grade":"B","score":75,"open_postings":7,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Zagreb, Croatia"],"countries":["HR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache HTTP Server","optional":false},{"name":"JavaScript","optional":false},{"name":"JUnit","optional":false},{"name":"npm","optional":false},{"name":"Playwright","optional":false},{"name":"Rest API","optional":false},{"name":"Web Components","optional":false}],"status":"live","first_seen_at":"2026-10-12T10:53:55Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-12T21:35:03Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About the job\nSoftware Engineer - Java / Full StackZagreb | Hybrid\nWe're continuing to grow F24's Engineering Centre of Excellence in Zagreb and are looking for a Software Engineer to join the team working on TopEase, F24's enterprise Governance, Risk & Compliance (GRC) platform.\nF24 is one of Europe's leading providers of crisis management, emergency notification and business resilience software, supporting thousands of organisations around the world when it matters most.\nThis particular team is responsible for developing customer-specific extensions and functionality within TopEase, working across backend services, APIs, integrations and frontend functionality.\nWe're looking for a strong, hands-on engineer who enjoys taking a requirement, understanding the problem and turning it into well-built, maintainable software.\nWhat you'll be doing:\nDevelop backend functionality primarily using Java\nBuild and work with REST APIs, web services and JSON/XML integrations\nDevelop customer-specific extensions and functionality within the TopEase platform\nContribute across the frontend where relevant, working with JavaScript, HTML and CSS\nWork within an established enterprise platform, understanding existing code and identifying the best way to implement new functionality\nBuild quality into your work through automated testing and good engineering practices\nTake ownership of development work from requirement analysis through to testing and deployment\nCollaborate with engineers and stakeholders across F24's European organisation\nWhat we're looking for:\nCommercial Java backend development experience\nExperience working with REST APIs and integrations\nGood knowledge of JSON and ideally XML\nStrong software engineering fundamentals and a focus on clean, maintainable code\nThe ability to work autonomously and get up to speed with an existing codebase\nA proactive, pragmatic approach to solving technical problems\nStrong English communication skills\nExperience with JavaScript / frontend development would be a big plus - particularly HTML5, CSS3 or Native Web Components - but you don't need to be a traditional Full Stack Engineer.Exposure to technologies such as Eclipse Jersey, JUnit, Playwright, npm, XPath or Apache Ant would also be useful, but we're not expecting someone to tick every box. These technologies reflect the stack outlined for the team.\nWho could this suit?\nWe're deliberately keeping an open mind on level.\nYou might already be working as a Senior Software Engineer, or you could be a strong mid-level engineer looking for greater ownership and the opportunity to continue developing your skills.\nWhat's more important is that you're a capable, hands-on developer who can understand a problem, navigate an established codebase and deliver good software.\nWhy F24?\nYou'll join an established international SaaS business while becoming part of a growing engineering organisation in Zagreb.\nIt's an opportunity to work on software solving complex, real-world business problems, collaborate with teams across Europe and have genuine ownership of the functionality you deliver.\nIf you're a Java, Backend or Full Stack Engineer in Zagreb and this sounds interesting, I'd love to hear from you.\nApply or get in touch for an informal conversation.","description_format":"text","description_chars":3269,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Croatia","iso":"HR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Incident Response","Team Communication & Collaboration"],"lifecycle":[{"event":"open","at":"2026-10-12T17:21:12Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":28,"reasons":["conf:2","win:early"],"computed_at":"2026-10-13T00:04:55Z"},"pay":null,"html_url":"https://alion.io/job/f24-software-engineer-customization","json_url":"https://alion.io/job/f24-software-engineer-customization.json","meta":{"generated_at":"2026-10-13T00:04:55Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":114,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":695974},"rest":"https://alion.io/mcp/rest/get_company?id=695974"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ff24-software-engineer-customization"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ff24-software-engineer-customization"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ff24-software-engineer-customization"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/f24-software-engineer-customization\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ff24-software-engineer-customization"}]}