{"id":2772452,"url":"https://alion.io/job/ust-full-stack-developer-net-react-100-remote-within-spain","title":"Full stack developer (.NET, React) 100% remote within Spain","company":{"id":1774626,"name":"UST","domain":"ust.com","url":"https://alion.io/company/ust-com","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"RippleHire","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Madrid, Spain"],"countries":["ES"],"hiring_countries":["ES"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":57000,"max_usd":121000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":13},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ASP.NET Core","optional":false},{"name":"Azure","optional":false},{"name":"Azure DevOps","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Clean Architecture","optional":false},{"name":"Entity Framework Core","optional":false},{"name":"GitHub Actions","optional":false},{"name":"JavaScript","optional":false},{"name":"Material UI","optional":false},{"name":"React.js","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-09-11T00:00:00Z","employer_posted_date":"2026-10-17","last_verified_at":"2026-10-18T02:23:58Z","board_verified":true,"closed_at":null,"days_open":37,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":37},"description":"We are looking for the very Top Talent…and we would be delighted if you were to join our team!\nMore in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.\nWhat we look for?\nWe are looking fora Senior full stack developer with deep expertise in .NET, React, Azure Cloud, and Artificial Intelligence technologies. \nThe ideal candidate will be responsible for designing, developing, and delivering scalable cloud-native applications while driving the adoption of AI-powered solutions across the software development lifecycle. \nThis role requires a hands-on senior who can work across front-end, back-end, cloud infrastructure, and AI services to build innovative digital products. You will collaborate closely with architects, product owners, data scientists, and cross-functional engineering teams to deliver secure, scalable, and intelligent applications.\nMain tasks and accountabilities will be:\nSoftware Development Design, develop, and maintain enterprise-grade web applications using: .NET 8 / C# ASP.NET Core React.js and TypeScript RESTful APIs and Microservices\nDevelop highly scalable and maintainable cloud-native solutions. \nImplement modern software engineering practices including Clean Architecture, Domain-Driven Design (DDD), and SOLID principles, Azure DevOps GitHub Actions\nParticipate in architecture discussions and technology decisions. \nImprove code quality through: Automated testing Security scanning Static code analysis Code reviews \nWork closely with Product Owners and Business Stakeholders to translate business requirements into technical solutions. \nLead technical workshops, design reviews, and proof-of-concepts. \nDrive innovation and continuous improvement initiatives. \nProvide technical leadership and guidance across development teams.\nWhat do we expect from you?\nBackend:7+ years of software development experience.\nStrong expertise in: C# .NET Core / .NET 8, ASP.NET Core, Entity Framework Core, React.js, TypeScript, JavaScript, ES6+ , HTML5, CSS3, Material UI or similar frameworks\nExtensive experience with Microsoft Azure.\nCI/CD pipelines\nAI & Data\nEnglish B2+/C1\nWork Location\n100% remote (Spain)\nWork Schedule\nBusiness hours.\nWhat can we offer?\n23 days of Annual Leave plus the 24th and 31st of December as discretionary days!\nNumerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances).\n`Retribución Flexible´ Program: (Meals, Kinder Garden, Transport, online English lessons, Health Care Plan…)\nFree access to several training platforms\nProfessional stability and career plans\nUST also, compensates referrals from which you could benefit when you refer professionals.\nThe option to pick between 12 or 14 payments along the year.\nReal Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime…)\nUST Club Platform discounts and gym Access discounts\nIf you would like to know more, don’t hesitate to apply and we’ll get in touch to fill you in detail. We are waiting for you!\nIn UST we are committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation or nationality. We have a special commitment to Disability & Inclusion, so we are interested in hiring people with disability certificate.","description_format":"text","description_chars":3573,"description_truncated":false,"requirements":{"experience_years_min":7,"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":["Annual leave"],"hiring_locations":[{"name":"Spain","iso":"ES","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams"],"lifecycle":[{"event":"open","at":"2026-10-17T06:49:13Z"}],"visa":[],"liveness":{"score":19,"band":"cold","label":"Long shot","p_open":1,"p_active":0.531,"p_room":0.35,"age_days":37,"expected_fill_days":14,"reasons":["conf:0","win:tail","comp:brand"],"computed_at":"2026-10-18T02:52:25Z"},"pay":null,"html_url":"https://alion.io/job/ust-full-stack-developer-net-react-100-remote-within-spain","json_url":"https://alion.io/job/ust-full-stack-developer-net-react-100-remote-within-spain.json","meta":{"generated_at":"2026-10-18T02:52:25Z","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":4548,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"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":1774626},"rest":"https://alion.io/mcp/rest/get_company?id=1774626"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fust-full-stack-developer-net-react-100-remote-within-spain"},{"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%2Fust-full-stack-developer-net-react-100-remote-within-spain"},{"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%2Fust-full-stack-developer-net-react-100-remote-within-spain"},{"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/ust-full-stack-developer-net-react-100-remote-within-spain\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fust-full-stack-developer-net-react-100-remote-within-spain"}]}