Backend Developer jobs in Spain

SellAnyCar is on a journey to build the future of all things automotive. We dream big, we aim big and we drive towards our goals. This mantra is why we are market leaders, why we are scaling and why we are competing for the best talent in Dubai and the world.

1. Architecture & Evolution

• Design & Strategy: Lead the design of scalable, event-driven backend services, making pragmatic decisions on when to build new versus refactor old.

• System Decoupling: Strategically dismantle a monolithic legacy application, migrating logic into modern, independent microservices without disrupting business operations.

• Modernization: Lead the structured migration of legacy backend systems to modern frameworks, ensuring production stability, minimizing technical debt, and maintaining long-term maintainability.

2. AI & Feature Development

• AI Integration: Architect backend pipelines that integrate with LLMs to power advanced search, automation, and generative features.

• Build robust APIs and services that support our product roadmap, ensuring they are "AI-ready".

3. Performance & Reliability

• Database Optimization: Analyze and optimize complex MySQL data models and queries for speed. Implement advanced caching strategies using Redis.

• Monitoring: Proactively identify and diagnose performance issues using observability tools like New Relic and Kibana.

• Scale: Ensure our infrastructure on AWS (EC2/ECS) is tuned to handle high traffic and growth spikes.

4. Leadership & Mentorship

• Code Quality: Ensure software reliability by enforcing strict testing and review standards.

• Mentorship: Support team growth by mentoring mid-level engineers and leading technical discussions.

Core Technical Skills:

• Experience: 8+ years in backend engineering.

• Languages: Expert in PHP (Laravel, Symfony, Yii) with working knowledge of Node.js.

• Databases: Advanced skills in MySQL and Redis.

• Cloud: Solid experience with AWS (2, ECS, RDS).

• Messaging: Familiarity with queues like RabbitMQ or ActiveMQ.

• Search: Experience with Algolia or similar search engines.

• Mindset: Strong focus on product ownership and business impact.

Infrastructure & Architecture:

• Cloud Native: Strong experience deploying and managing applications on AWS (EC2, ECS, RDS).

• Asynchronous Systems: Hands‑on experience with message brokers (RabbitMQ, ActiveMQ) and event‑driven architecture.

• Search: Familiarity with implementing and tuning search engines (Algolia or Elasticsearch).

Professional Qualities:

• Product Mindset: You understand that code is a tool to solve business problems.

• Ownership: You take full accountability for your features, from the whiteboard design to production monitoring.

Why Join Us

• Impact: Contribute directly to the design and evolution of a high‑scale backend platform.

• Technical Challenge: Work on complex backend problems, including modernizing legacy systems, integrating AI features, and optimizing system performance.

• Autonomy: Take ownership of technical decisions and deliver solutions independently.

• Professional Growth: Collaborate with a team committed to maintainable code, modern engineering practices, and continuous improvement.