About me
Senior backend software engineer and DevOps specialist, building scalable cloud-native applications with thoughtful architecture
Software development with business perspective
I'm Adrián — a freelance software engineer and DevOps specialist with over 9 years of experience building reliable systems and aligning technology with business growth.
My core focus is designing scalable backend architectures and robust cloud-native infrastructure using Java, Docker, Kubernetes, Helm, Kafka, Terraform, Ansible, GitlabCI, and AWS. Because of my background founding and leading my own startup for 3 years, I don't just write code; I help small and medium enterprises (SMEs) optimize their development resources to focus on what truly matters to reach their business goals.
While I specialize in high-performance traditional software, I also leverage advanced no-code tools when speed-to-market is the priority. This hybrid expertise allows me to architect complex corporate integrations or deploy rapid, enterprise-grade MVPs with the exact same engineering rigor.
Let's collaborate to build a solid, scalable, and cost-effective tech foundation for your business — engineered to perform and built to last.
Experience
A journey through my professional career and key milestones
Remote
Senior Software Engineer
ademiguel.dev
I lead backend development projects. I build robust systems focusing on DevOps practices, cloud-native architectures, and software engineering best practices. I specialize in Java, Docker, Kubernetes, Helm, Kafka, Terraform, Ansible, GitlabCI and AWS.
Valencia, Spain
Software Development Instructor
EDEM Business School
I deliver 5-hour intensive workshops on software development for master's students. It's a hands-on program where students build functional apps, understand key no-code principles, and launch simplified versions of popular apps like Wallapop.
Valencia, Spain
CTO
Belong
Founded and led the tech side of Belong, a virtual office platform built with Bubble. Managed a small product team, designed system architecture, and implemented features like real-time presence, video calls, and analytics dashboards. Focused on balancing product speed with technical scalability.
Valencia, Spain
Software Engineer
EXFO
Worked on Nova SensAI, a Big Data and ML-powered telecom monitoring tool. Designed and optimized data pipelines, integrated graph databases, and containerized applications with Docker and Kubernetes. Advocated for best practices development, testing and code documentation.
Madrid, Spain
Networks & Systems Engineer
BICS
Developed 3G/4G network elements like HSS and GTP Routers. Automated configurations with Ansible, built monitoring tools, and gave talks on 5G technologies. Strengthened system reliability and performance for telecom operators.
Valencia, Spain
Software Developer
Seidor
Developed e-commerce platforms using SAP Hybris (Java/Spring) and automated repetitive tasks with Python scripts.