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# Backend Engineer

- **Company:** Agentic Ai
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, JavaScript (Programming Language), Distributed Systems, Monitoring of Systems, Node.Js, Svelte, Software Engineering, Systems Architecture, System Testing, TypeScript, Test-Driven Development (TDD), Backend, Front End Software Development, Asynchronous Programming, NestJS, Serverless Computing, Microservices
- **Published:** July 22, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

+ 7+ years of professional software development experience, with at least 3 years using Node.js.
 + Strong experience with JavaScript/TypeScript; familiarity with NestJS (or similar frameworks) is a plus.
 + Deep understanding of asynchronous programming, distributed systems, and microservice architecture.
 + Experience working with event-driven or serverless systems.
 + [Bonus] Exposure to frontend technologies like Svelte.
 + [Bonus] Experience with CI/CD pipelines, monitoring tools, or infrastructure-as-code.
Engineering Philosophy

 + Passionate about writing clean, modular, and testable code.
 + Experienced with test-driven development and quality-focused delivery practices.
 + Comfortable making architectural decisions and guiding others in trade-offs and best practices.
Growth & Ownership

 + Interested in evolving into a Tech Lead role over time - driving architecture, mentoring peers, and helping shape engineering standards.
Soft Skills

 + Excellent communication skills in English, both written and spoken.
 + Collaborative mindset and willingness to take initiative.

## Description

As a Senior Backend Engineer, you bring a pragmatic mindset, write clean and scalable code, and thrive in a modern agile product environment. You'll play a key role in shaping our architecture, leading backend initiatives, and collaborating closely with cross-functional stakeholders.
This role offers a clear path toward technical leadership - we're looking for someone eager to take ownership and grow into a Tech Lead position over time.
Your Responsibilities
Your Responsibilities

 + Architect & Build: Design, implement, and maintain scalable microservices on a modern tech stack (NestJS, Node.js, event-based architecture, serverless infrastructure).
 + Shape the Foundation: Define system architecture and lay down foundational engineering practices for maintainability and scale.
 + Collaborate & Guide: Contribute to technical strategy and product direction. Participate actively in roadmap discussions and offer a long-term engineering perspective.
 + Write Great Code: Focus on clean, modular, and maintainable code. Drive TDD and ensure quality with unit, integration, and system tests.
 + Own Delivery: Work iteratively, embrace fast feedback cycles, and help ensure features move smoothly from concept to production.
 + Evaluate & Innovate: Stay up to date with emerging tools and frameworks, and bring new ideas to the table.
Your profile
Your Profile


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