Mark Fernandes

Managing Director, Sierra Ventures

Mark Fernandes is a Managing Director at Sierra Ventures and focuses on software investments in the consumer internet and enterprise areas. His investments include Frontbridge Technologies (acquired by Microsoft), Sourcefire (NASD: FIRE) and Opalis Software (acquired by Microsoft). He was also a board observer at Net6 (acquired by Citrix Systems) and Permeo (acquired by Blue Coat Systems). He serves on the boards of Ooyala, Spotzer Media, DynamicOps and ThisMoment. Mark started his career in engineering at Seagate Technology and was then a product manager at Cisco Systems. After business school, Mark was an equity research analyst covering software companies, first at Robertson Stephens and then as a Director at Merrill Lynch. He joined Sierra Ventures in 2002. Mark has a MS in Mechanical Engineering from UC Berkeley and a MBA from Harvard.

Articles by Mark Fernandes

The Founder’s Mental Health Playbook: What I Learned After Nearly Burning Out

A hard-won guide to staying mentally healthy while building a startup I founded Stitcher, the podcast platform, in 2007 and ran it for seven years until we sold in 2014....

Answer Engine Optimization (AEO) for Early Stage Companies

In our latest session from the Mucker Growth Series featuring Ethan Smith from Graphite, we explored AEO, a significant new approach for optimizing visibility in AI-driven search, particularly relevant as...

Startup Guide to AI Visibility: Be the Brand ChatGPT Recommends

Introduction Today, users aren’t just searching on Google. They’re asking ChatGPT, Claude, Google’s Gemini, Perplexity, and other AI systems for advice. AI visibility is the new frontier of brand awareness....

Practical Uses of AI & Automation for Startup Operations

In a recent Mucker Growth Series session, we invited Rock Vitale, Founder & CEO of Easie, to share how he’s helped early-stage teams move from manual, fragmented workflows to streamlined,...

2025 New York Tech Week Recap Of Mucker Sessions

Last week during New York Tech Week 2025, we joined more than 1,000 events hosted by founders, investors, and VCs. This post is a full Mucker recap of the three...

How to Build a Customer Support Function for Startups Using AI Tools with Alex Velinov

Delivering high-quality customer support can be one of the most resource-draining parts of a startup. The good news: we’re at a turning point where founders can use AI tools to...