Daniel Reyes
Chief Technology Officer, B2B SaaS · Denver, CO
Summary
CTO of a 120-person SaaS company with 50 engineers across 6 teams and $24M ARR. Led the move from a single-tenant monolith to a multi-tenant platform, held uptime at 99.95% through 3x customer growth, and brought engineering attrition from 22% to 9% in two years.
Experience
Chief Technology Officer, Lumenstack
Jan 2021 – Present
Denver, CO
- Own product engineering, infrastructure, security and data for a $24M ARR workflow platform; manage 5 directors and an organization of 50 engineers with a $9.5M annual budget.
- Led the 18-month re-architecture from a single-tenant monolith to a multi-tenant platform on AWS, cutting per-customer hosting cost 41% and enabling 3x customer growth at 99.95% uptime.
- Passed SOC 2 Type II and ISO 27001 audits in year one and built the security program behind enterprise deals that account for 35% of new ARR.
- Rebuilt the hiring and leveling process, raising offer acceptance from 54% to 78% and dropping engineering attrition from 22% to 9%.
VP of Engineering, Kestrel Analytics
Apr 2016 – Dec 2020
Boulder, CO
- Scaled engineering from 14 to 38 people through a Series B and C, introducing squad-based delivery and quarterly planning tied to company OKRs.
- Shipped the company's public API and data pipeline platform, processing 1.5B events per month and supporting a product line that grew to 28% of revenue.
- Cut release cycle from monthly to weekly by investing in CI/CD and test automation, reducing production incidents 37% year over year.
Skills
Technology strategy and roadmap · Engineering org design and hiring · Cloud architecture (AWS) · SaaS multi-tenancy · SOC 2 and ISO 27001 · Budgeting and vendor negotiation · Board and investor reporting · Build vs. buy analysis · Platform and API strategy · M&A technical due diligence · Engineering metrics (DORA) · AI/ML product integration
Education
B.S. in Computer Science, Colorado School of Mines, 2008