Dennis Pilarinos
About Dennis Pilarinos
Dennis Pilarinos is the founder and CEO of Unblocked, based in Vancouver, British Columbia. He has spent his career building products for software engineers. He holds a BSc in Computing Science and Business from Simon Fraser University.
He started on Microsoft Azure, then became the first AWS employee in Amazon's Vancouver office. At AWS he built the team and worked on the Kindle Fire stack and developer tooling. Techcouver reports that the office began in temporary space in Yaletown. He later held a Senior Director role at AWS and a Director role at Microsoft.
He then founded Buddybuild, a CI/CD platform for mobile developers. Apple acquired it in January 2018, and it became the foundation for Xcode Cloud. Pilarinos joined Apple as Director of Development Technologies and stayed until mid-2020. He later reunited much of the Buddybuild team to start Unblocked. Unblocked is a context engine that gives developers and AI coding agents organizational knowledge. Its customers include engineering teams at Workday, Plaid and Webflow. In May 2025 it raised C$27.5M, a round led by B Capital with Radical Ventures, Artisanal Ventures and several angels participating. He has also served on the board of Keela (until June 2024) and as a mentor at Creative Destruction Lab.
After the Buddybuild sale, Pilarinos set aside part of the proceeds to reinvest in the local tech ecosystem. Techcouver reports he has made about a dozen angel investments. He describes them as backing people and ideas that deserved a chance, rather than building a conventional portfolio. He also said such investments take a while to pay off.
Crunchbase lists three of his investments: Skyscraper (seed, December 2012 per Dealroom), Metaspectral (pre-seed, 2018) and Fillout (seed, announced October 2024). It shows no lead investments and no exits. The full list of his angel investments is not public, so this page covers only what can be confirmed.
On what he looks for, he told the Nature Based Solutions Foundation that when he angel invests he looks for teams well positioned to solve big problems. As a founder taking money, he told First Round Review he prefers investors with operating experience who have done something similar.
No public source labels any of Pilarinos's angel investments as AI-specific, so none are listed here as such. His AI work is as an operator. Unblocked builds context infrastructure for AI coding agents and tools such as Claude and Cursor, and he speaks and posts often about context engineering and AI adoption in engineering teams. He has described LLMs as an enabling technology and said the product experience around them is what matters. Founders building AI developer tools can expect him to know the problem space well.
Public records show early-stage checks: pre-seed and seed rounds. His own experience and public commentary centre on developer tools, productivity software and infrastructure. He is based in Vancouver, and Techcouver describes his investing as tied to the local ecosystem. His investments listed on Crunchbase also include companies outside Canada. Check size, ownership targets and whether he leads rounds are not public. Crunchbase shows no lead investments. He is also running Unblocked full-time, so his angel activity is a side activity.
- Fillout: seed round announced October 2024, per Crunchbase.
- Metaspectral: pre-seed round in 2018 per Crunchbase. Other profiles list him as an angel investor there from January 2019.
- Skyscraper: seed round of about $500K in December 2012 with a group of angels, per Dealroom. Crunchbase lists the company in San Francisco.
- Unblocked (founder, not angel): context engine for developers and AI coding agents. He is founder and CEO.
- Buddybuild (founder, not angel): mobile CI/CD platform, acquired by Apple in 2018.
- crunchbase.com/person/dennis-pilarinos
- techcouver.com/2026/07/22/dennis-pilarinos-unblocked-building-vancouve
- theorg.com/org/unblocked-1/person/dennis-pilarinos
- review.firstround.com/podcast/essential-lessons-for-building-and-scali
- app.dealroom.co/companies/skyscraper
- builtinvancouver.org/articles/unblocked-secures-series-a-funding-20250
- naturebasedsolutionsfoundation.org/qa-with-business-leader-tech-entrep
- qconsf.com/speakers/dennis
Investing activity
Dennis Pilarinos has made 3 investments according to Crunchbase across 3 portfolio companies, and has founded 2 companies.
Deals
Frequently asked questions about Dennis Pilarinos
Does Dennis Pilarinos invest in AI startups?
No public source labels one of his angel investments as AI-specific. He builds AI developer tooling at Unblocked and has written and spoken often about AI coding tools and context engineering.
What stage does Dennis Pilarinos invest in?
His publicly listed investments are pre-seed and seed rounds. Crunchbase shows no lead investments.
What is Dennis Pilarinos's check size?
It is not public. Neither Crunchbase nor his own public statements give a check size or range.
What does Dennis Pilarinos look for in founders?
He has said that when he angel invests he looks for teams well placed to solve big problems. His background suggests he knows developer tools, but he has not published a formal thesis.
What companies has Dennis Pilarinos founded?
He founded Buddybuild, a mobile CI/CD platform that Apple acquired in 2018, and he is now founder and CEO of Unblocked.
How can founders contact Dennis Pilarinos?
He is active on X (@dennispilarinos) and LinkedIn. He runs Unblocked, so a short, specific message that explains the developer problem you solve fits best.
Is Dennis Pilarinos an angel investor?
Yes. Dennis Pilarinos invests personally as an angel and is Founder / CEO at Unblocked. Crunchbase counts 3 investments.
Where is Dennis Pilarinos based?
Dennis Pilarinos is based in Vancouver, British Columbia, Canada.
How can founders reach Dennis Pilarinos?
Founders on Lounge can see Dennis Pilarinos's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with them under Warm Paths, and add Dennis Pilarinos to their Investor Pipeline to track the conversation.