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# Lead Backend Engineer

- **Company:** Llc Labhouse
- **Location:** Barcelona, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Software as a Service, Cloud Computing, Code Review, Data Integrity, Database Applications, Relational Databases, Database Storage Structures, Digital Content, Software Architecture, Query Optimization, Ruby on Rails, Software Engineering, Systems Integration, TypeScript, Software Security, Reliability of Systems, Backend, Front End Software Development, Api Design
- **Published:** September 24, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

5+ years of experience in backend software engineering, ideally in production-scale SaaS environments.
Strong expertise in Ruby on Rails and TypeScript, with hands-on experience building production systems.
Deep understanding of backend architecture, system design, and scalable distributed applications.
Proven experience building APIs, backend services, and data-driven applications.
Strong knowledge of relational databases, query optimization, and data modeling.
Familiarity with cloud infrastructure, CI/CD pipelines, and modern software engineering practices.
Experience with application security principles and production-grade system reliability.
Proven leadership skills, including mentoring engineers and contributing to technical direction.
Strong communication, collaboration, and problem-solving abilities.
Bonus: Experience building or working with AI tools, AI agents, or integrating AI-driven features into products.

## Description

This role offers the opportunity to take ownership of the backend architecture powering a globally used visual storytelling platform. You will lead the design and evolution of scalable, secure, and high-performance systems that support millions of users creating infographics, presentations, and digital content. As a technical leader, you will work at the intersection of product, design, and engineering to deliver seamless backend solutions that directly shape user experience. The environment is collaborative and innovation-driven, with a strong emphasis on quality, continuous improvement, and engineering excellence. You will also play a key role in mentoring engineers and elevating backend practices across the team. This is a high-impact position where your technical decisions influence product scalability, reliability, and long-term platform growth.
Accountabilities:
Lead the design, development, and maintenance of scalable, secure, and high-performance backend architecture supporting a global SaaS platform.
Collaborate closely with Product, Design, and Frontend Engineering teams to deliver integrated solutions aligned with user and business needs.
Ensure system reliability, performance, and scalability by monitoring, optimizing, and continuously improving backend services.
Design and optimize database structures and queries to ensure data integrity, efficiency, and scalability under high load.
Conduct code reviews and enforce best practices to ensure high-quality, maintainable, and well-documented codebases.
Evaluate, introduce, and integrate modern tools, frameworks, and technologies to improve backend performance and development efficiency.
Provide technical leadership, mentoring, and guidance to backend engineers, fostering a culture of excellence and continuous learning.


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