Jeff Leyser

  1. Engineering
  2. Site Reliability Engineering
  3. Terraform
  4. Perl
  5. Python
  6. amazon aws

Empowering Technology Leadership: From Cloud Migrations to SRE Mastery

Jeff Leyser is a strategic technology leader with a passion for innovation and efficiency in high-growth environments. Bridging technology and business objectives, he excels in fostering cultures of excellence across diverse teams. With a strong background in AWS, DevOps, and SRE, Jeff has led significant migrations and managed large teams, delivering cost-effective solutions that align with strategic goals. His approach emphasizes mentoring, operational optimization, and driving sustainable growth. Jeff is committed to harnessing the power of cloud technology to enhance operations and achieve superior customer satisfaction.

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Jeff Leyser

Work

Experience

  • Zillow Group

    Zillow Group

    Director, Site Reliability Engineering

    Aug 2020 - Mar 2024

    Zillow’s mission is to help more people get home — with speed, certainty and ease.

    • Saved enterprise an average of $1.2M a year in AWS costs each by delivering multiple large-scale migrations on time and on budget and unified cost management and budget for a multimillion AWS spend.
    • Achieved attrition rate under 5% and an employee engagement score of 100% following integration of 5 disparate SRE/DevOps teams to support and standardize SRE across engineering.
    • Developed and allocated a $12M annual budget and another $500K in software licenses reporting directly to the VP of Technology and Operations
  • Zillow Group

    Zillow Group

    Sr. Engineering Manager, DevOps

    Jan 2017 - Aug 2020

    • Led a team of 10 Infra/DevOps engineers in supporting the Zillow Integrated Transaction Business, contributing to over $1 billion in annual revenue.
    • Pioneered the migration of key operational components from on-prem to AWS, significantly improving infrastructure scalability and reliability.
    • Managed the consolidation of DevOps and SRE teams across various product lines into a unified structure, enhancing operational efficiency.
    • Implemented agile processes and rigorous engineering practices within a largely AWS-based ecosystem, significantly impacting project delivery and product development.
  • Zillow Group

    Zillow Group

    DevOps Engineer

    Jul 2016 - Jan 2017

    • Supported 50 software engineers as the first public cloud engineer in the organization.
    • Developed all new CI/CD pipelines, migrated services, and provided day-to-day support to the engineering teams.
    • Migrated 150 services that supported $1B in annual revenue from on-premises to AWS without any downtime or revenue disruption.

  • BSR Software

    DevOps Engineer & Consultant

    Jan 2009 - Jul 2016

    Independent DevOps Contractor

    • Re-architected and re-deployed multiple client sites for an e-commerce PaaS provider; migrated from a VMWare-based enterprise architecture to AWS cloud architecture.
    • Improved uptime and performance of a large Django based infrastructure for an SaaS non-profit client, moving key pieces from traditional on-prem systems to AWS with no disruption.
    • Built and expanded a Linux-based infrastructure for a technology startup, completing infrastructure engineering to grow from a server in a closet serving 5 people, to a 6-rack data center serving 100+ employees.