Mayel Espino

(510) 512-5323·mayel.espino@gmail.com·San Francisco Bay Area·linkedin.com/in/mayelespino·
hephaestus.rocks
Professional Summary
Senior software and infrastructure engineer with 35+ years of experience building and leading teams at Google, Meta, Microsoft, Apple, and PayPal. Inventor of 7 patents — including a Microsoft-patented cloud monitoring and simulation platform — and a hands-on leader of infrastructure, DevOps, and embedded systems programs. Proven track record designing distributed systems, CI/CD pipelines, and fleet management tooling at hyperscale. Equally at home writing low-level C++ and architecting cloud-native Kubernetes platforms.
Patents
Skills
Languages: C/C++, Python, Go, Java, C#, R, Bash
DevOps & Infra: Docker, Kubernetes (AKS/GKE), Terraform, Helm, SaltStack, Ansible, Puppet, Chef, CI/CD (Rapid, Jenkins, GitHub Actions)
Cloud: GCP (Borg, GCloud, G3), AWS, Azure, Azure Functions, Lambda
Databases: Oracle, Sybase, MongoDB, Redis, Cassandra, Microsoft Graph DB
Observability: DataDog, Prometheus, ELK Stack, Monit, custom-built tooling
OS: Linux, Unix, Windows
Legacy / Niche: Rust (learning), Kotlin (learning), Assembly, Fortran, COBOL, Pascal, Perl, MVS, NetApp OnTap
Experience
Google [Contract]|Senior Embedded Engineer
Jun 2023 – Present·HILT team
  • Introduced Ansible to the team and authored the foundational playbooks now used for fleet configuration management across all HILT devices.
  • Led bring-up and integration of multiple complex, in-house designed hardware devices into the team's managed fleet — including physical assembly, OS configuration, and network provisioning.
  • Coordinated QA and release management processes, improving cross-functional delivery cadence.
  • Built instrumentation and monitoring pipelines to track device health and fleet status in real time.
Meta|Senior Systems Engineer
Dec 2024 – Aug 2025·Enterprise Engineering Storage
  • Developed internal observability and alerting tools in Python/Hack, improving incident detection time and system reliability across enterprise storage infrastructure.
  • Managed petabyte-scale NetApp and Isilon storage systems serving thousands of internal users, maintaining high availability through proactive capacity planning and on-call support.
  • Integrated MetaMate and DevMate AI assistants into team workflows, reducing code review cycle time and accelerating feature delivery.
Google [Contract]|Senior DevOps Engineer
Jun 2023 – May 2024·DOPS — Omnilab / Firebase Labs
  • Built automation tooling that scaled Firebase Labs' Android device fleet testing infrastructure, enabling concurrent testing across a significantly larger device pool.
  • Developed backend services in Python and Go supporting CI/CD pipelines and real-time device fleet monitoring.
  • Led systems troubleshooting efforts and improved incident response playbooks for GCloud-based infrastructure, reducing mean time to resolution.
Microsoft|Senior Software Engineer
Feb 2018 – Apr 2022·Office of the CTO
  • Invented a cloud monitoring and simulation service platform that was patented by Microsoft — used for event coordination and observability across Azure services.
  • Led a proof-of-concept for an Azure-based event service to coordinate messaging across distributed services, later adopted into production architecture.
  • Provided architecture guidance and Azure best practices to internal teams via the Azure concierge program.
  • Stack: C#, Go, Python, Gremlin, Graph DB, AKS, Kusto, PowerShell, PowerBI
Apple|Site Reliability Engineer
Apr 2016 – Dec 2017·AML Infrastructure — Apple Standard Toolkit
  • Reduced support ticket response time by 85% through process automation, triage redesign, and runbook development.
  • Developed SaltStack modules that enforced configuration hygiene across production systems, reducing drift-related incidents.
Earlier Experience  (1991 – 2016)
PayPal — Senior Software Engineer  |  2006 – 2014
  • 8-year tenure across security, payments, and platform teams. Led projects involving REST APIs, Oracle DB, and multi-language backend services (C++, Java, Python, Ruby). Managed project delivery as technical lead.
Verizon — Senior Software Engineer  |  1996 – 2004
  • 8-year tenure building carrier-grade telecom software across Unix (AIX, HP-UX, Solaris), Windows, and MVS. Developed with C++, Java Servlets, MQ Series, and WebSphere in a high-availability environment.
FireEye (2016)·Senior DevOps Engineer·Ansible Tower, Prometheus, ELK Stack, Docker, Python
Ooyala (2015)·Site Reliability Engineer·Chef, Ruby, AWS, Consul, DataDog, OpenStack
Symantec (2014–2015)·Senior Software Engineer·Python, Django, AWS, RabbitMQ, OpenShift
Candle Corporation (1991–1996)·Software Engineer & Team Manager·C++, Assembler, Rexx
Education
B.S. in Computer Engineering · U.A.C.J. · 1984–1990 · Fully accredited in the United States