AWS Application Developer AWS Application Developer
- Spain More in detail, 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 worldwide and presence in more than 35 countries. We are leaders in digital technology services and provide large-scale technology solutions to big companies. We are building an AI-native internal developer platform for a leading financial services client: the paved road that lets every engineering team build applications with AI agents as first-class developers, with governance and automation built in. The platform is greenfield and already in use, and we are looking for a hands-on senior engineer to help shape it from the ground up. We are looking for an AWS Application Developer to build the self-serve platform, quick starts and governance checks behind this developer platform. 100 remote position for people located in Spain. Build the self-serve platform: control plane services, APIs, the CLI, and integrations with AWS, GitHub, Entra, Snowflake and core systems.
- Build quick starts and reusable skills that define best-practice application development, used by both the platform team and teams building on top of it.
- Work with engineering teams across the firm to define the patterns, guardrails and paved paths that AI agents follow when building applications.
- Develop serverless AWS applications and tools using Lambda, API Gateway and Step Functions, together with GitHub Actions and Infrastructure as Code.
- Automate the software delivery lifecycle and engineering controls,



and raise platform quality through code review, test automation, observability and documentation. English C1 (required).
- Strong application-development experience, enough to define how applications should be built well and encode that as patterns and quick starts.
- Strong AWS application development and software engineering experience, ideally on developer tooling, delivery platforms or cloud-native developer workflows.
- Daily use of AI-assisted engineering, working with a coding agent or harness. Solid knowledge of AWS serverless and event-driven services: Lambda, API Gateway and Step Functions.
- Experience automating CI/CD, SDLC and engineering controls with GitHub Actions and Infrastructure as Code.
- Experience building automated governance, compliance or operational controls into delivery pipelines.
- API design, automated testing, observability, documentation and secure-by-default delivery. Python/FastAPI for building production APIs and services.
- TypeScript/React for web front ends and developer consoles.
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Skills:
AWS, AWS Lambda, AWS Step Functions, API Development, Amazon API Gateway, Event-Driven Architecture Numerous benefits (Health Care Plan, Internet Connectivity, Life and Accident Insurances).
- Retribución Versátil Program: (Meals, Kindergarten, Transport, online English lessons, Health Care Plan )
- Free access to several training platforms
- Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime )
- AWS, GitHub, Microsoft Entra, Snowflake, AWS Lambda, Amazon API Gateway,

📌 AWS Application Developer, 100% En remoto (España)
🏢 Ust
📍 España