Chainguard Strengthens Executive Bench with New CISO and CFO as Growth Accelerates

Chainguard is adding serious horsepower to its leadership ranks with the appointment of Quincy Castro as Chief Information Security Officer (CISO) and Eyal Bar as Chief Financial Officer (CFO). The software supply chain security leader also promoted Grace Shiell to Vice President of People and earned a Great Place to Work® certification, underscoring its focus on scaling without losing cultural momentum.

The moves come at a time when Chainguard’s secure open source artifacts and zero-CVE container images are seeing widespread adoption from startups to Fortune 500 enterprises and government agencies. CEO and co-founder Dan Lorenc said the hires mark a key inflection point. “Quincy and Eyal are joining Chainguard at a pivotal time for the company,” he said, citing the increasing demand for solutions that reduce engineering toil and risk in software development.

Castro will oversee Chainguard’s security posture across IT, product, and operations, leveraging a career that spans offensive and defensive roles at the NSA and executive security leadership at Redis, GE Transportation, and Wabtec. “My job is to make life as hard as possible for bad actors and as easy as possible for everyone else,” Castro said. “That means preserving the trust of our customers and delivering secure outcomes so they can focus on building, knowing we have their backs.”

Bar brings 16 years of experience steering fast-growing companies through scale-ups and IPOs, including Monday.com’s climb from $18 million to $1.2 billion in annual recurring revenue. As CFO, he will lead Chainguard’s financial strategy and global expansion. “Scaling a company that already sets the standard for software supply chain security into its next chapter of high-velocity growth is an opportunity I couldn’t resist,” Bar said.

Chainguard is also doubling down on culture as it scales. Shiell’s promotion recognizes her role in building people programs to support rapid expansion, while the company’s recent certification as a Great Place to Work® signals a continued investment in employee experience.

The expanded leadership team will help Chainguard build on recent momentum. The company now offers more than 1,500 minimal, continuously rebuilt container images through its Chainguard Containers catalog, available across Azure, AWS, and GCP marketplaces. Organizations like Appian, Cribl, and Fortinet are among the growing list of customers using the company’s open source–driven approach to secure modern software stacks.

Chainguard also continues to contribute heavily to the open source ecosystem, leading projects like Sigstore and SLSA, maintaining Kaniko, and advancing its Container Hardening Priorities initiative to standardize image security. With the new appointments, the company is positioning itself to turn its momentum into what Bar described as “durable, industry-shaping leadership.”