> Markdown version of [/jobs/ext/3678347-backend-engineer](https://www.wearedevelopers.com/jobs/ext/3678347-backend-engineer). 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). --- # Backend Engineer - **Company:** Enginy Ai - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Artificial Intelligence, Software Quality, Continuous Integration, Relational Databases, Software Debugging, Distributed Systems, Elasticsearch, Github, PostgreSQL, Node.Js, Redis, Software Engineering, TypeScript, Backend, Enterprise Integration, Apache Kafka, Front End Software Development, Api Design, Data Pipelines, Api Management, Microservices - **Published:** October 11, 2026 - **Apply:** https://www.adzuna.es/details/5921890921 ## About the Role * 5+ years of professional software engineering experience with a strong backend focus * Strong experience with TypeScript and Node.js * Solid understanding of modern API design and async workflows * Experience with relational databases (PostgreSQL or similar) * Ability to work autonomously, debug complex issues and ship high-quality code * Strong communication skills and an advanced level of English * Bias for action and ownership you thrive in a fast-moving startup Nice to have * Experience with workflow engines (e.g. Temporal), distributed systems or microservices * Experience with Redis, Elasticsearch, Kafka or third-party API integrations * CI/CD practice with GitHub Actions * Experience in early-stage or fast-scaling startups * Interest in B2B SaaS, sales tech or automation tools ## Description * Core services: build and maintain scalable, reliable services that power our core engine * Async workflows: work with async architectures, data pipelines and workflow orchestration with Temporal * APIs & integrations: design and implement production-grade APIs and integrations with external platforms (CRMs, LinkedIn and more) * Performance & reliability: optimize performance, debug complex issues and ensure strong observability across the system * End-to-end delivery: collaborate closely with Product, Design and Frontend to ship complete features with a focus on quality, reliability and speed * Engineering standards: help shape engineering practices, code quality and architecture as we scale, We've designed our hiring process to be close to real engineering work. No trivia-heavy interviews and no artificial take-home exercises we focus on how you think through product problems, technical trade-offs, ambiguity, quality, and the use of AI as part of modern engineering. One of our tech leads wrote about the philosophy behind it here: https://oriolcastro.me/posts/hiring-for-modern-engineering/ What to expect: 1. Intro conversation: your background, your goals, and the environment where you do your best work. 2. Short practical task: based on a small version of our product. We care about prioritization, scope, reasoning and delivery within constraints. Use AI tools, just like you would on the job. 3. Technical/product conversation: realistic engineering problems, not stack trivia. 4. Final conversation: team fit, expectations and next steps.