{"id":3147238,"url":"https://alion.io/job/xci-frontend-software-developer","title":"Frontend Software Developer","company":{"id":694524,"name":"XCI","domain":"xci.dk","url":"https://alion.io/company/xci","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":null},"role":"Frontend","role_family":"Frontend","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Aalborg, Denmark"],"countries":["DK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"Node JS","optional":false},{"name":"React.js","optional":false},{"name":"Sass","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-10-23T08:07:25Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-10-24T07:12:09Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Join a rapidly growing technology company with an important purpose of developing the best software products to prevent and fight crime. We make sure that police authorities and intelligence services always have the best technological solutions, giving them the optimal conditions to protect citizens in the city, on the street and in our homes.\nIf you find motivation in working in a dynamic, innovative environment, and have experience with JavaScript, building UI and data processing, we would love to have you as our next team member.\nWe are looking for an experienced and driven frontend developer to help build impactful, scalable solutions using React, JavaScript (ES6), TypeScript, and Node.js.\nDevelop scalable big data software\nYour primary role will involve developing scalable and high-quality software systems that support big data flows and analytics used by national security organizations.\nAs an experienced Frontend Software Developer, you can drive the entire process from conception through implementation to customer feedback. You focus equally on crafting beautiful UI and solid, fully tested functionality making you a key player in your team.\nYou will join a dedicated and experienced team where professionalism runs high, the atmosphere remains informal, and colleagues support and motivate each other. You will have significant influence over your own work, with ample opportunities for both professional and personal development.\nYou will work on industry-leading products, help drive innovation and continuous improvement to deliver maximum value to our customers.\nAreas of responsibilities:\nHelp drive innovation in a product used by thousands of people helping to keep us safe in everyday life\n\nImplement new functionality, refactor existing components, and build on top of a core UI components library\n\nBuild and maintain a UI components library\n\nCollaborate closely with designers and product managers to bring creative ideas to life\n\nContinuously improve product usability and performance with a strong eye for detail and design\n\nDrive architecture and solution designs\n\nHelp drive quality improvement in frontend-related challenges\n\nAbout you\nWith an eye for visual design and the ability to bring data to life through interactive interfaces, you are an engineer with some years of experience working on digital products. You communicate well in English, both written and spoken, and take pride in writing structured, high-quality, well-tested code. You always seek the best solution while keeping simplicity in mind, and your interest in big data and experience with relevant technologies drives your work. You are passionate about learning new technologies and enjoy sharing your insights with colleagues.\nYou have experience with:\n3-5 years of experience with React\n\nJavaScript (ES6)\n\nTypeScript\n\nStoryBook or something similar\n\nHTML5, SASS, CSS and SCSS\n\nBuilding and maintaining a UI components library\n\nUsability and user experience\n\nWe consider it an advantage if you have experience with:\nReact and the JavaScript ecosystem\n\nBrowser support and scalability\n\nQuality assurance\n\nNode js\n\nEven if you don’t tick off all the boxes listed above, don’t hesitate to apply and let us know what else you bring to the table that should make us consider you for this role.\nBe part of the XCI Team\nYou will be a par of our creative community of +170 experts who believe in XCI’s core purpose of protecting us all against criminal threats. Our projects present complex technical challenges that have real meaning and contribute to making society safer.\nAs part of the XCI team, you should expect to work with motivated and happy colleagues in a dynamic work environment. The informal XCI culture has \"freedom under responsibility\" as its internal motto, which allows you flexible working hours and a good work/life balance. We prioritize employee development very highly, and there is always a focus on your professional and personal development.\nApplication\nWe are very much looking forward to hearing from you.\nIf you have any questions about the position, you are welcome to contact Development Manager Andreea Ceachir at .\nWe conduct interviews on an ongoing basis and will close the recruitment process once the right candidate has been found.\nWe look forward to hearing from you!\nDue to GDPR, applications can only be submitted via the link provided in the job posting.\nAll employees at XCI must be able to obtain a security clearance, which is why we will request a clean criminal record during the recruitment process.","description_format":"text","description_chars":4576,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Flexible schedule"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Law Enforcement","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-10-23T10:46:28Z"}],"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":23,"reasons":["conf:3","win:early"],"computed_at":"2026-10-24T06:02:35Z"},"pay":null,"html_url":"https://alion.io/job/xci-frontend-software-developer","json_url":"https://alion.io/job/xci-frontend-software-developer.json","meta":{"generated_at":"2026-10-24T09:08:38Z","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":13108,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":694524},"rest":"https://alion.io/mcp/rest/get_company?id=694524"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fxci-frontend-software-developer"},{"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%2Fxci-frontend-software-developer"},{"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%2Fxci-frontend-software-developer"},{"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/xci-frontend-software-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fxci-frontend-software-developer"}]}