Description

Senior Software Engineer and Tech Lead with 25+ years of experience building SaaS products from concept to production. I specialize in Node.js, NestJS, and Angular, with a strong focus on architecture, quality, and automation. Proven experience leading technical teams and delivering scalable cloud platforms.

Languages

Spanish
Native or bilingual
English
Native or bilingual

Workplace preferences

Can work on-site

Granada (up to 50km)

NTT DATA
Senior Software Engineer
TELECOMMUNICATIONS
March 2025 - Today (1 year and 3 months)
Barcelona, Spain
Implemented enterprise-grade E2E test automation and quality validation using Playwright.
Developed custom tools in Python and JavaScript for automated PDF comparison, supported by AI solutions.
Designed an AI-based system for automatic Playwright test generation from business analyst specifications.
Collaborated with distributed product, QA, and architecture teams.
Improved testing stability through advanced automation and internal tooling.
Node.js Playwright CI/CD Management Python Generative AI
Multiples
Co-Founder & CTO
BANKING AND INSURANCE
August 2022 - January 2026 (3 years and 5 months)
London, UK
Stack: NestJS, Node.js, TypeScript, React, Kubernetes, Docker, GitHub Actions, MongoDB, Redis, ClickHouse, Cypress, DigitalOcean

Designed and built a SaaS platform from scratch using NestJS, Angular, React and Kubernetes, managing MongoDB and Redis clusters as well as DNS infrastructure.
Implemented a microservice architecture and automated CI/CD pipelines using GitHub Actions.
Developed a financial data ingestion and processing system integrating multiple external APIs (FactSet, Morningstar, among others) for over 15,000 companies, including normalization, enrichment, and data distribution.
Deployed and managed infrastructure on DigitalOcean, optimizing costs compared to AWS-based solutions.
Implemented and maintained a self-hosted ClickHouse cluster for analytics and large scale data processing.
Designed and integrated E2E test suites with Cypress and unit tests with Jest to validate critical product workflows.
Led the technical direction of the product alongside two co-founders, defining architecture, roadmap, and quality standards.
Scaled the platform to ~3,000 users with active paying customers.
Actively contributed to product and technical strategy decisions.
React.js Kubernetes NestJs Data analysis Angular
Seqera Labs
Senior Software Engineer
BIOTECH
October 2020 - December 2022 (2 years and 2 months)
Barcelona, Spain
Stack: Java, Groovy, Micronaut, Vue.js, Nuxt, AWS, MySQL, Docker, Spock
Developed backend services in Java and Groovy using Micronaut for cloud-based bioinformatics platforms.
Implemented authorization and permission management systems for users and organizations.
Designed and built a web platform in Vue.js for software license management.
Integrated customer management and billing systems into the main API.
Implemented unit and integration tests in Micronaut using Spock to ensure backend stability and quality.
Contributed to architectural decisions and the technical evolution of the platform.
Actively participated in code reviews, quality improvement initiatives, and engineering best practices.
Java Groovy MySQL Docker VueJS