{"id":2772449,"url":"https://alion.io/job/ust-senior-aws-application-developer-100-remote","title":"Senior AWS Application Developer | 100% Remote","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":"explicit","locations":["Madrid, Spain"],"countries":["ES"],"hiring_countries":["ES"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":61000,"max_usd":129000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":13},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"API Gateway","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"AWS Step Functions","optional":false},{"name":"CI/CD","optional":false},{"name":"GitHub Actions","optional":false},{"name":"FastAPI","optional":true},{"name":"Python","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-09-14T00:00:00Z","employer_posted_date":"2026-10-17","last_verified_at":"2026-10-17T13:14:18Z","board_verified":true,"closed_at":null,"days_open":33,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":33},"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 company with over 35.000 employees all over the world and presence in more than 30 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.\nWhat are we looking for?\nWe are looking for a Senior AWS Application Developer with strong AWS and software engineering expertise, experience building cloud-native solutions, and an AI-first mindset. The ideal candidate enjoys creating scalable platforms, developer tooling, and best-practice frameworks that enable engineering teams to build.\nPosition 100% remote for candidates based in Spain.\nWhat we're looking for\nEssential\nStrong application-development experience, enough real-world app-dev depth to define how applications should be built well, and to encode that as patterns and quick starts others rely on. This is the core of the role.Strong AWS application development and software engineering experience, ideally on developer tooling, delivery platforms, or cloud-native developer workflows.You already use AI daily for engineering work. You build with a coding harness/agent as a matter of course, and the more experience you have driving one, the closer to spec-driven development, the better. This is central to how we work, not a bonus.Solid knowledge of AWS serverless and event-driven services: \nLambda\nAPI Gateway\nStep Functions\nIntegration patterns across AWS services\nExperience automating CI/CD, SDLC, and engineering controls: \nGitHub Actions\nInfrastructure as Code\nAutomated evidence capture\nExperience building automated governance, compliance, or operational controls into delivery pipelines, turning policy and regulatory requirements into code and evidence.\nComfortable implementing both:\nDeterministic scripted checks\nAgentic applications that reason over the problem\nFinancial services or regulated-industry experience is a plus.\nGood engineering practice as second nature: API designAutomated testingObservabilityDocumentationSecure-by-default deliveryComfortable operating independently in a fast-moving programme and contributing from early on.Nice to have\nPython/FastAPI for building production APIs and services.TypeScript/React for web front ends and developer consoles.Experience building internal developer platforms or \"platform-as-a-product.\"Experience building agentic applications, or designing APIs/CLIs and reusable skills for both human and agent consumers.You don't need to have built agentic apps, but experience working through a harness matters.What you'll be like\nA hands-on engineer with a builder's mindset, happy close to the code, shipping practical capability.Fluent with AI-assisted engineering. You reach for a harness by default and think in terms of specs and outcomes.Opinionated about good application development, and able to turn that judgement into patterns others can follow.Pragmatic and self-sufficient, able to make progress where priorities shift as the platform is proven with real users.Product-minded and customer-focused, genuinely interested in making the paved road useful.Security- and automation-conscious. You build controls and quality in, rather than leaning on manual process.\nClear and collaborative across platform, application, security, identity, and service-management stakeholders.\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`Retribucióón 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.Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime…)UST Club Platform discounts and gym Access discountsIf 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":4613,"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":[]},"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":33,"expected_fill_days":14,"reasons":["conf:3","win:tail","comp:brand"],"computed_at":"2026-10-17T16:16:37Z"},"pay":null,"html_url":"https://alion.io/job/ust-senior-aws-application-developer-100-remote","json_url":"https://alion.io/job/ust-senior-aws-application-developer-100-remote.json","meta":{"generated_at":"2026-10-17T16:16:37Z","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":22304,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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-senior-aws-application-developer-100-remote"},{"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-senior-aws-application-developer-100-remote"},{"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-senior-aws-application-developer-100-remote"},{"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-senior-aws-application-developer-100-remote\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fust-senior-aws-application-developer-100-remote"}]}