Álvaro Torres Cogollo

About

+7 years of experience as a Senior DevOps / SRE Engineer with proven experience in Infrastructure as Code, automation, and large-scale cloud infrastructure on AWS. Expert in Terraform/OpenTofu, Kubernetes, and CI/CD workflows. Strong development background in Go and Python. Recognized for a proactive, research-driven approach and deep technical understanding across infrastructure domains.

Work Experience

Senior DevOps Engineer @ Too Good To Go

January 2022 – Present • Madrid, Spain • Food Waste Reduction Marketplace (B2C)

Responsibilities:

• Ensure high availability, reliability, and scalability of core infrastructure, including onboarding new regions and supporting new product features.
• Support product and engineering teams by managing infrastructure, enabling them to focus on feature development and bug fixes.

Key accomplishments:

• Led a company-wide Terraform/OpenTofu rebuild, designing and implementing scalable infrastructure, onboarding multiple teams, and establishing best practices for maintainable Infrastructure as Code.
• Built a company-wide CLI in Golang from scratch, now used daily by front-end, back-end, infrastructure, and finance teams to streamline workflows.
• Developed a High Availability core alerting system using Python, AWS Lambda, and SQS, through which all alerts are filtered and routed to the appropriate destinations; became a critical component for incident response across the company.
• Migrated the most critical CI workflow to GitHub Actions from Jenkins, resolving significant technical debt while achieving faster, cache-efficient, and more reliable pipelines.

DevOps Engineer @ Telefónica

July 2019 – January 2022 (3 years) • Madrid, Spain • Telecommunications Services

Responsibilities:

• Maintain the development environment and tooling for the company’s R&D business branch.
• Support product and engineering teams with infrastructure, CI/CD pipelines, and internal developer tooling.

Key accomplishments:

• Co-developed an Internal Developer Platform (Python + React) serving as a marketplace for developers, simplifying resource discovery and access.
• Co-led the setup of OpenShift/Kubernetes clusters, establishing scalable, reliable environments for R&D teams.
• Maintained CI/CD as a Service platform based on Jenkins and GitHub Actions, ensuring fast, reliable, and consistent deployments across multiple teams.

Linux Systems Administrator @ Adminia Sistemas S.L.

September 2018 – July 2019 (1 year) • Madrid, Spain • IT Service Provider

Responsibilities:

• Maintain high-availability systems for daily use by office staff.

Key accomplishments:

• Ensured reliable operation and availability of Linux and FreeBSD infrastructure, including mail servers, storage systems, and physical hosting.

Skills

Education

Telecommunications & Telematics Engineering @ Polytechnic University of Madrid

September 2014 – June 2020 • Madrid, Spain

Languages

• Spanish: Native
• English: Fluent

Relevant Open Source Projects

Offensive Tor Toolkit @ GitHub

Golang • https://github.com/atorrescogollo/offensive-tor-toolkit

Offensive Tor Toolkit is a Go-based collection of tools designed to simplify Tor usage during exploitation and post-exploitation activities. Each tool embeds its own isolated Tor instance, allowing the operator to execute tasks by uploading a single self-contained file to the target system.

mtlsocks5 @ GitHub

Golang • https://github.com/atorrescogollo/mtlsocks5

Transparent SOCKS5 proxy implemented over mTLS, enabling secure and authenticated routing of client traffic through a remote server. It provides VPN-like connectivity by transparently forwarding outbound requests through an encrypted tunnel.