About Me

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Software architect with 13 years of professional experience. I design and build backend systems on AWS and Cloudflare, event-driven architectures and secure REST APIs, and I modernise legacy Java and PHP platforms.

As a consultant at HP (through K-LAGAN), I architected and operated a platform of 10+ containerised microservices on Kubernetes, integrated through Apache Pulsar, AWS SQS and Redis Pub/Sub, and led remote engineering teams across Europe and Asia. At InfoPro Digital Automotive, I modernise legacy Java and PHP SaaS APIs and manage incident response for the platform.

I run production systems with observability (Grafana, Datadog, ELK Stack), CI/CD quality checks (Jenkins, SonarQube), structured postmortems and man-day budgets for technical maintenance. At InfoPro Digital Automotive, systematic refactoring, stronger test coverage and safer deployments reduced production incidents by 20%.

I also have founder and startup experience. I founded and ran SeeDoCare, a web development company, in parallel with my employed roles. As Tech Lead at Wivapp, I took a new restaurant product from scratch to an MVP launched for investors.

I maintain open-source software: Equipment, a Python scaffolding framework used in production environments, PHP and Python packages published on Packagist and PyPI, and a collection of AI agent skills that automate engineering workflows.

Architecture

Distributed systems, event-driven architecture, microservices, REST API design, legacy modernisation

Backend

PHP (Laravel, Symfony, Slim), Python (FastAPI, Flask), Java

Cloud & containers

AWS, Cloudflare, DigitalOcean, Docker, Kubernetes

Data & messaging

MySQL, PostgreSQL, MongoDB, Redis, Apache Pulsar, AWS SQS, Redis Pub/Sub

Reliability & delivery

Grafana, Datadog, ELK Stack, Jenkins CI/CD, SonarQube, incident management, postmortems

Frontend & tooling

JavaScript, TypeScript, Node.js, Hono, React, Inertia.js, Vue, Alpine.js

Resume

Senior Software Developer | InfoPro Digital Automotive

- Present | Barcelona | Main B2B platform for car parts distributors in the Spanish market
  • Reduced production incidents by 20% through systematic refactoring, stronger test coverage and safer deployment practices.
  • Modernise legacy Java and PHP SaaS APIs on AWS and Cloudflare that integrate data from multiple providers; chose Cloudflare edge caching over scaling the AWS origin because traffic was mostly read-heavy lookups, which cut origin load and cost.
  • Manage incident response: severity-based triage, resolution estimates and structured postmortems to drive long-term reliability improvements.
  • Mentor junior developers through code reviews and shared backend engineering practices.

Tech Lead | Wivapp.com

- | Barcelona
  • Led development of a new restaurant product from scratch, built with Laravel, Inertia.js and React on DigitalOcean Kubernetes.
  • Chose a modular monolith over microservices to deliver the MVP in 3 months, then launched it to present the product to investors.
  • Stepped down when the venture did not move past the investor stage.

Senior Backend Developer | Convelio

- | Paris, France | Logistics scale-up, €30M Series B (2022)
  • Designed and maintained secure PHP APIs for a high-volume logistics platform serving 1,000+ clients per week, meeting its availability SLA.
  • Improved API performance and reliability, cutting response times by 200–500 ms per request; implemented observability with Grafana, Datadog and the ELK Stack.
  • Centralised the API contract in the OpenAPI Specification (formerly known as Swagger) so multiple frontends consumed one backend API; OpenAPI contract tests let frontend and backend teams evolve independently without breaking changes.
  • Removed 10,000+ lines of dead and unsafe legacy code, improving security, performance and maintainability.
  • Raised code quality through automated testing and peer code reviews.

Senior Programming Analyst | HP

- | Barcelona | Consultant at HP through K-LAGAN
  • Architected and operated a distributed platform of 10+ Docker-based microservices on Kubernetes in production, processing data from 3,000+ high-value customers that fed business-critical automated decisions.
  • Designed event-driven integrations with Apache Pulsar, AWS SQS and Redis Pub/Sub to decouple services for scalability and fault tolerance; chose AWS SQS over self-hosted RabbitMQ for cloud workloads because a managed queue removed broker operations from a small team.
  • Built secure API integrations and background processing in Laravel, and data pipelines and robotic process automation (RPA) in Python.
  • Built and maintained Jenkins CI/CD pipelines with SonarQube quality checks, reaching 80% code coverage across the platform.
  • Led remote engineering teams across Europe and Asia, running architecture reviews, code reviews and technical mentorship.

Full Stack Developer | Health Dataline Europe SA

- | Barcelona
  • Rebuilt the front end of 10+ client eCommerce websites for mobile devices with Onsen UI.
  • Built internal APIs that retrieve data from multiple backend sources.

Co-Founder & CEO | SeeDoCare S.L.

- | Barcelona | Run in parallel with employed roles
  • Founded and ran a web development company; won 3 clients in the first year and delivered custom eCommerce, SaaS and CMS solutions at 20% lower cost than competing B2B platforms.
  • Expanded the offer with SEO, brand design and marketing services.
  • Closed the company in 2017 and moved to full-time employment.

Software Developer | Emotion Experience

- | Barcelona
  • Built interactive brand experiences for GFT, with custom software for LED displays and interactive panels.
  • Developed the software for the “GFT Lab” installation.

Web Developer | Caravelo

- | Barcelona
  • Built “Volado Volaris”, a product selling last-minute fares for empty seats on Volaris flights; shipped the first release in 1 month.
  • Created a design system to integrate new airlines into the company’s products; 2 new airlines used it.
  • Maintained product websites for airline customers.

Web Developer | SIQUR S.P.A.

- | Italy
  • Built the Spanish version of the company’s eCommerce website.
  • Launched a WordPress blog for content marketing and ran SEO, analytics and marketing campaigns.

Web Developer Instructor | CIPSA

- | Barcelona
  • Hired as an instructor after completing the school’s Web Development Master programme.
  • Taught full-stack web development to 50+ students, from a first HTML page to a final full-stack project.
  • More than 50% of students found a job after finishing the course.

Web Developer | Mediterrani Food

- | Barcelona
  • Built and maintained the company’s WordPress website and applied the brand design across web, reports and communications.
  • Wrote blog posts, edited videos, managed the community and ran SEO; this content brought in 10+ new clients.

Education

Web Development Master

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CIPSA | Barcelona

Bachelor of Arts (B.A.), Music Theory and Composition

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Conservatori Liceu | Barcelona

Bachelor of Arts (B.A.), Composition

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Sibelius Academy | Helsinki

Associate's degree, Music Performance, General

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Conservatori Liceu | Barcelona

Portfolio

Testimonials

Roger is a fantastic person to work with, and is not only a multi-skilled and insightful developer, but also an inspiring collegue. He has been a great team member from day one with very strong problem solving skills. Another area I’d like to highlight is his strong background in dev-ops, which has been fundamental to our team. Roger is an asset to any company.

- Marcial Clotet, SW Senior Manager at HP -

I highly recommend Roger for any backend development role. He possesses a remarkable combination of technical expertise and problem-solving abilities. Roger can work with various programming languages and frameworks, coupled with experience in designing and implementing scalable backend solutions, which makes him a valuable asset to any team. Moreover, Roger consistently demonstrates strong communication skills and a collaborative approach, ensuring seamless integration with cross-functional teams. Beyond his technical abilities, Roger is genuinely a nice person, and it has been a pleasure working with him!

- Louis Hatier, Senior Backend Engineer @ Convelio -

Roger is a multidisciplinary developer who can implement and take to term, software solutions to which he applies his outstanding problem solving skills for both conventional and unconventional day to day issues. Great team player and thinker, he will be missed when he joins your future projects which he will undertake tirelessly.

- Carlos Alberto Teruel Sáez, SW Engineer Senior II -

Roger worked as my lead mentor in HP. He was in charge of supervising my workday. He used his developing deep knowledge to lead all our team to the next level. I recommend him as a great professional and mainly for being an amazing leader.

- Didac Elgueta, Intelligent Automation Engineer -

I have known Roger since the very start of his professional career, when he was a student. His performance was always outstanding, with great professional aptitude. On a personal level, he is always willing to help his colleagues. He has gained a great deal of knowledge and will keep doing so thanks to his discipline and determination. Always grateful that our careers crossed paths.

- Eric Liebstreich, Senior Consultant - (Translated from Spanish)

Roger is a very good developer with nice infra skills. Their future vision and his effort give the team the ability to grow and be a referent as the good method to deploy in a SaaS, with the best code quality and full code coverage. At the team level, he has excellent skills to tech all the team, and manage as a natural tech lead, at the personal level, he is a friend. He helps me to grow from sysAdmin to DevOps.

- Guillem Bonamussa, DevSecOps at Submer - K-LAGAN -

A great professional. He shows strong commitment in every task he takes on, helps improve the team atmosphere and is always willing to help his colleagues, with humility.

- Roberto Ferreiro, SW QA Tester - (Translated from Spanish)