> Markdown version of [/jobs/ext/2949621-senior-aws-application-developer-100-en-remoto](https://www.wearedevelopers.com/jobs/ext/2949621-senior-aws-application-developer-100-en-remoto). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior AWS Application Developer, 100% En remoto - **Company:** UST - **Location:** Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Automation of Tests, Cloud Engineering, Encodings, Continuous Integration, Programming Tools, Github, Python (Programming Language), Systems Development Life Cycle, Software Engineering, TypeScript, Web Services, ReactJS, Api Design, Api Gateway, Serverless Computing, GXP - **Published:** September 16, 2026 - **Apply:** https://www.empleate.gob.es/empleo/#/oferta/1857576593 ## About the Role Deterministic scripted checks - Agentic applications that reason over the problem - Financial services or regulated-industry experience is a plus. - Good engineering practice as second nature: - API design - Automated testing - Observability - Documentation - Secure-by-default delivery - Comfortable operating independently in a fast-moving programme and contributing from early on. Nice to have - Python/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 dont need to have built agentic apps, but experience working through a harness matters. What youll be like - A hands-on engineer with a builders 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. - Clear and collaborative across platform, application, security, identity, and service-management stakeholders. What can we offer? - 23 days of Annual Leave plus the 24th and 31st of December as discretionary days! - Numerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances). - Retribución Flexible Program: (Meals, Kinder Garden, Transport ## Description 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: - Lambda - API Gateway - Step Functions - Integration patterns across AWS services - Experience automating CI/CD, SDLC, and engineering controls: - GitHub Actions - Infrastructure as Code - Automated evidence capture - Experience building automated governance, compliance, or operational controls into delivery pipelines, turning policy and regulatory requirements into code and evidence. - Comfortable implementing both: - ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Blueprints for Success: Steering a Global Data & AI Architecture](https://www.wearedevelopers.com/videos/1577-blueprints-for-success-steering-a-global-data-ai-architecture) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Bringing AI Model Testing and Prompt Management to Your Codebase with GitHub Models](https://www.wearedevelopers.com/videos/1536-bringing-ai-model-testing-and-prompt-management-to-your-codebase-with-github-models) - [Your next 10x engineer isn't in your city. Refactor accordingly.](https://www.wearedevelopers.com/videos/100103-your-next-10x-engineer-isn-t-in-your-city-refactor-accordingly) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025) - [Mastering Remote Work: Tips for Developers](https://www.wearedevelopers.com/magazine/558-mastering-remote-work-tips-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Best Job Boards for Remote Work for Developers](https://www.wearedevelopers.com/magazine/290-best-job-boards-for-remote-work-for-developers)