{"id":881221,"url":"https://alion.io/job/f24-software-engineer-backend-node-js-python","title":"Software Engineer - Backend (Node.js/ Python)","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":"A","score":90,"open_postings":5,"ghost_share":0,"stale_share":0.2,"repost_share":0,"time_to_fill_p50_days":234,"computed_at":"2026-11-04T06:34:25Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","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":"CI/CD","optional":false},{"name":"Fastify","optional":false},{"name":"Git","optional":false},{"name":"JavaScript","optional":false},{"name":"Nest.JS","optional":false},{"name":"Node JS","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"TypeScript","optional":false},{"name":"Docker","optional":true},{"name":"Express","optional":true},{"name":"FastAPI","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-06-17T14:58:06Z","employer_posted_date":"2026-06-17","last_verified_at":"2026-11-04T11:24:04Z","board_verified":true,"closed_at":null,"days_open":139,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":139},"description":"About the job\nAbout the job\nF24 is Europe’s leading provider of crisis management and emergency notification software, helping thousands of organisations around the world respond quickly and effectively during critical situations.\nWe’re expanding our Zagreb Engineering Centre of Excellence with a new Suite team, focused on bringing together capabilities from across F24’s existing product portfolio and helping shape the next generation of our platform.\nWe’re looking for a Software Engineer with a backend focus who has solid commercial development experience and is ready to take the next step in their career within a collaborative, product-led engineering environment.\nWhy F24?\nYou’ll join a small engineering team working on a modern platform that brings together capabilities from multiple existing F24 products.You’ll primarily work across Node.js and Python backend services, developing APIs and contributing to the ongoing modernisation of the Suite platform.This is a great opportunity for someone who already has a good foundation in backend engineering but wants to continue developing their technical skills, gain greater ownership and learn from experienced engineers around them.\nYou\nDevelop and maintain backend services using Node.js and Python\nBuild and maintain REST APIs that integrate capabilities across F24 products\nContribute to the design and implementation of new platform features\nWrite clean, maintainable and well-tested code\nParticipate in code reviews and technical discussions\nTroubleshoot issues and contribute to improvements across existing services\nWork closely with Frontend, Product, Design and QA throughout feature delivery\nContribute to automated testing and CI/CD processes\nDevelop your understanding of scalable, secure and maintainable backend architecture\nTake increasing ownership of features from development through to production\nWhat You'll Bring\nCommercial software engineering experience with Node.js\nExperience with NestJS, Express or Fastify\nExperience designing, building or consuming REST APIs\nGood understanding of JavaScript and/or TypeScript\nUnderstanding of backend development principles and clean coding practices\nExperience working with databases and data-driven applications\nFamiliarity with Git and modern development workflows\nUnderstanding of automated testing\nGood problem-solving and debugging skills\nComfortable collaborating within a cross-functional engineering team\nAn interest in developing your skills across architecture, cloud-native development and distributed systems\nYou don’t need to know every technology in our stack. 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