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Hi, I'm Fernando Burillo López, a software engineer with 14+ years of experience specializing in backend development, microservices, and privacy-focused SaaS solutions. I’m proficient in Java, JavaScript/TypeScript, C/C++, and cloud technologies (GCP, Docker, Kubernetes), and I enjoy turning complex requirements into scalable, secure systems used by thousands of employees. I’m passionate about mentoring engineering teams, leading architecture initiatives, and building automated pipelines for reliable delivery. I thrive in collaborative environments and love applying data-driven approaches to improve performance, security, and user experience.…Hi, I'm Fernando Burillo López, a software engineer with 14+ years of experience specializing in backend development, microservices, and privacy-focused SaaS solutions. I’m proficient in Java, JavaScript/TypeScript, C/C++, and cloud technologies (GCP, Docker, Kubernetes), and I enjoy turning complex requirements into scalable, secure systems used by thousands of employees. I’m passionate about mentoring engineering teams, leading architecture initiatives, and building automated pipelines for reliable delivery. I thrive in collaborative environments and love applying data-driven approaches to improve performance, security, and user experience.

Fernando Burillo López

Full Stack Developer, Back-End Developer, Programmer, +2

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Hi, I'm Fernando Burillo López, a software engineer with 14+ years of experience specializing in backend development, microservices, and privacy-focused SaaS solutions. I’m proficient in Java, JavaScript/TypeScript, C/C++, and cloud technologies (GCP, Docker, Kubernetes), and I enjoy turning complex requirements into scalable, secure systems used by thousands of employees. I’m passionate about mentoring engineering teams, leading architecture initiatives, and building automated pipelines for reliable delivery. I thrive in collaborative environments and love applying data-driven approaches to improve performance, security, and user experience.…Hi, I'm Fernando Burillo López, a software engineer with 14+ years of experience specializing in backend development, microservices, and privacy-focused SaaS solutions. I’m proficient in Java, JavaScript/TypeScript, C/C++, and cloud technologies (GCP, Docker, Kubernetes), and I enjoy turning complex requirements into scalable, secure systems used by thousands of employees. I’m passionate about mentoring engineering teams, leading architecture initiatives, and building automated pipelines for reliable delivery. I thrive in collaborative environments and love applying data-driven approaches to improve performance, security, and user experience.

Available to hire

Hi, I’m Fernando Burillo López, a software engineer with 14+ years of experience specializing in backend development, microservices, and privacy-focused SaaS solutions. I’m proficient in Java, JavaScript/TypeScript, C/C++, and cloud technologies (GCP, Docker, Kubernetes), and I enjoy turning complex requirements into scalable, secure systems used by thousands of employees.

I’m passionate about mentoring engineering teams, leading architecture initiatives, and building automated pipelines for reliable delivery. I thrive in collaborative environments and love applying data-driven approaches to improve performance, security, and user experience.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Spanish; Castilian

Fluent

Javanese

Advanced

Amharic

Advanced

Aragonese

Intermediate

Work Experience

Software Engineer (Contractor) at Ernst & Young

September 1, 2025 - September 1, 2025

Designed and delivered core modules of a multi-tenant SaaS system to manage retirement plans, supporting enterprises with 10k+ employees. Defined and coordinated the development schedule, aligning technical milestones with business requirements and regulatory deadlines. Implemented single sign-on (SSO) with a standard-based auth provider, enabling secure access for stakeholders, managers, and support users. Built a tenant-isolated relational database ensuring data segregation and compliance with financial regulations. Developed Java Spring Boot microservices with Spring Batch for background jobs (reporting, provider communications), improving automation and reducing manual operations by 40%. Integrated external provider APIs, NAV updates, and real-time plan portfolio evolution.

Software Engineer at eDreams Odigeo

October 1, 2024 - October 1, 2024

Led migration to a microservices-based architecture for a system handling around 4 million daily requests, increasing throughput by 25% and reducing latency by 20%. Implemented monitoring with Prometheus and Grafana, cutting incident resolution time by ~25%. Designed and developed a React-based UI for shareholder and manager dashboards. Deployed backend services on Kubernetes, with API Gateway as the front door. Built CI/CD pipelines and automated tests, reducing deployment errors by 30% and boosting code reliability. Performed performance benchmarking, achieving 25% improvement in system resilience under peak load.

Software Architect at Universidad Complutense, Madrid

December 1, 2021 - December 1, 2021

Led design, development, and deployment of a digital lab network as a SaaS platform with 99.99% uptime, leveraging a cloud-based microservices architecture. Implemented cloud infrastructure using GCP services and Terraform, improving operational efficiency and security with strict firewall rules. Integrated machine learning workflows to improve data processing efficiency by ~30% and prediction accuracy by ~35%. Orchestrated CI/CD pipelines and automated tests, increasing release frequency and product reliability by reducing incidents by ~25%. Conducted performance benchmarking to optimize system resilience under peak load.

Software Engineer at ALMIS IF

December 1, 2020 - December 1, 2020

Architecture and product development: Participated in designing the system architecture and implementing functionalities across projects using multiple technologies and frameworks. Led payments and settlement system integration via distributed communications through REST APIs, scaling operation numbers from 50 to 2,000 per day. Performed requirements analysis, collaborated on capturing and analyzing requirements, and making decisive choices for various projects. Served as an on-call software engineer to quickly respond to customer incidents and requests to ensure optimal performance and reliability of a critical software platform. Maintained interface communications and pursued continuous learning to contribute effectively to the team.

Software Architect at Universidad Complutense, Madrid

December 1, 2014 - December 1, 2014

Participated in system architecture design and feature implementation across multiple projects. Led migration to cloud-based SaaS architecture, enabling scalable delivery and reliable uptime. Focused on improving system architecture and technology choices to support business needs.

Attendance Control System Developer at Cultural Association

July 1, 2025 - July 1, 2025

Designed and implemented an attendance control system for events (average attendance around 400 people) using NFC wristbands, synchronizing and storing data in a centralized database to generate real-time entry records and enhance access security. Implemented real-time data capture and secure access control.

Mobile App Developer at Cultural Association

July 1, 2025 - July 1, 2025

Developed a mobile app for Android and iOS to schedule events, manage memberships, and push notifications for a local cultural association. Distributed through App Store and Google Play, with an integrated push-notification service and in-app membership registration.

Software Engineer at Ernst & Young

September 30, 2025 - September 30, 2025

Contractor role through Almís IF in Madrid; designed and delivered core modules of a multi-tenant SaaS retirement platform; supported enterprises with 10k+ employees; contributed to deployment of secure, scalable services.

Software Engineer at eDreams Odigeo

October 31, 2024 - October 31, 2024

Led migration to a microservices architecture for a system serving ~4 million daily requests; improved throughput by 25%, reduced latency, and improved maintainability. Implemented ML workflows, data processing optimizations (~30%), and improved prediction accuracy (~35%). Integrated external provider APIs and built CI/CD pipelines with QA automation.

Software Architect at Universidad Complutense Madrid

December 31, 2021 - December 31, 2021

Led design, development, and deployment of a cloud-based digital lab network SaaS platform with 99.99% uptime; designed cloud architecture and microservices; implemented ML workflows; contributed to system reliability and security.

Software Engineer at Almis IF

December 31, 2020 - December 31, 2020

Valencia-based role focusing on architecture and product development; participated in system architecture, implemented core functionalities across projects with multiple technologies and frameworks; contributed to delivering scalable SaaS services.

Software Engineer at Almis IF

September 30, 2014 - September 30, 2014

Madrid-based role; participated in architecture and migration efforts; led design and development across projects; contributed to multi-tenant SaaS deployments and platform improvements.