Ben Horowitz

work@benhorowitz.com

I'm an experienced software engineer, architect, and engineering manager with a proven track record of delivering enterprise-scale web applications. I specialize in backend and API development, microservices architecture, and high scalability/high availability solutions. I take pride in my ability to distill technically complex solutions into actionable cost/benefit analyses, grooming backlogs toward the highest possible business value.

I am passionate about building great products with seamless user experiences. I'm really looking forward to joining or building an amazing team that shares these values, and building the kinds of products that people will come to rely on and love.

In my free time, I dive into cooking, food science, and music. Ask me about smoking meat, making cheese, the perfect soft-boiled egg, or that time I nursed a rescued kitten back to health.

Experience

Headway

October 2023 - Present
Senior Engineering Manager

  • Led the Protected Health Information (PHI) privacy roadmap with board-level accountability, ensuring HIPAA and SOC 2 compliance.
  • Managed a 9-person engineering team (8 engineers + 1 staff).
  • Migrated approximately 100,000 daily logins to Auth0, making Multi-Factor Authentication (MFA) available to all users and mandatory for providers.
  • Automated user provisioning and deprovisioning, bolstering security posture and reducing manual overhead.
  • Spearheaded a large-scale authorization (AuthZ) replatform (handling around 1,000 queries per second (QPS)).
  • Built critical authorization components enabling offshoring of 600,000–800,000 daily CX entity accesses, saving $3 million per year despite significant engineering challenges.
  • Implemented linting rules to prevent privacy misconfigurations and safeguard PHI at scale.

Twilio

January 2021 - September 2023
Staff Software Engineer

  • Embedded in Segment’s Control Plane Service (CPS) and Public API (PAPI), serving millions of daily requests.
  • Implemented Functions API endpoints in PAPI, reducing new integration setup time by ~30%.
  • Decommissioned outdated microservices, cutting operational overhead by ~15% and eliminating key security risks.
  • Led GDPR/CCPA compliance automation, enabling secure data deletion for millions of records.
  • Served as Tech Lead on the Developer Center project, slashing partner integration from weeks to days and adopted by 100+ partners.

Segment (acquired by Twilio)

August 2019 - December 2020
Senior Engineering Manager

  • Owned the Functions product—previously the CTO’s initiative—launching it to general availability to democratize integrations.
  • Directed an 8-member Integrations team (plus 2 contractors, plus 2 embedded engineers), improving reliability across the integrations catalog.
  • Introduced Destination Actions, a new framework that standardized and streamlined integration development.
  • Drove code quality improvements, elevating the integrations ecosystem and supporting growth.

WeWork

February 2018 - August 2019
Engineering Manager

  • Scaled the Site Reliability Engineering (SRE) team from 6 to 45 engineers to support an org growing from 300 to 1200.
  • Transitioned from DevOps to SRE, emphasizing proactive infrastructure management and self-service tooling.
  • Led the Heroku-to-Kubernetes migration, creating AWS-based clusters and self-service deployment tools.
  • Implemented role-based access control (RBAC) for rapid provisioning/deprovisioning, onboarding 900+ engineers securely.
  • Initiated a CEO-approved Diversity, Equity, and Inclusion (DEI) program with Flatiron School, enabling non-technical employees to transition into engineering roles.

Strypes Co.

May 2017 - January 2018
Head of Engineering, Backend & DevOps

  • Architected and implemented production APIs for real-time 3D rendering applications
  • Built and managed company-wide infrastructure, deployments, and automation
  • Created command-line client for APIs for developers, administration and automation
  • Automated remote deployments to fleet of hardware kiosks

Nginx, Inc.

October 2015 – May 2017
Technical Architect, Microservices Engineering

  • Subject matter expert on microservices architecture and container technologies
  • Extensive research and exploratory development of mircoservice and container technologies
  • Forged strategic partnerships with companies in the microservices and container space
  • Worked with sales to tailor highly specialized solutions for clients in finance, government, & healthcare.
  • Productized new architectures, including the Fabric Model and Router Mesh
  • Collaborated in creation and delivery of microservices training programs, literature, and documentation.
  • Managed second engineering hire to the Microservices Engineering department

Huge, Inc.

January 2013 – May 2015
Senior Software Engineer

  • Pioneered agile practices at Huge.
  • Team lead for multiple teams, including distributed teams.
  • Worked closely with stakeholders to design technical architecture that supported both immediate and long-term product goals.
  • Created custom service-oriented architecture with Symfony, combining the content of over 270 existing sites into one centralized web presence.
  • Created a Solr/Lucene powered faceted search experience for a major NYC health care provider and other clients.

StyleCaster, Inc.

September 2012 – January 2013
Senior Developer

  • Architected and implemented a complete re-build of StyleCaster.com, migrating the site from Symfony2 to Ruby on Rails, hosted on Heroku.

ExpandTheRoom, LLC

August 2010 – August 2012
Developer

  • Technical lead for multiple clients, including RollingStone and Live Nation.
  • Managed a team of 10 backend and frontend developers.
  • Built multiple custom content management systems.

One Foot Productions, LLC

April 2007 – March 2008
Developer

  • Developed a proprietary web based, data driven, and object oriented application used to manage live television show logistics. 90% of codebase is still in use.

Fun Fact

Given milk, a lemon, and a tea towel, I can make three types of cheese in one day!