What colleagues say
Kind words from engineers, managers, and collaborators I've had the privilege of working alongside.
"He is easily the most advanced engineer I've worked with in terms of applying modern AI development tools and workflows. John didn't treat these as shortcuts — he treated them as force multipliers. The result was dramatic gains in both productivity and quality, and just as importantly, he took the time to teach, document, and share those learnings so the entire team could level up.
John has a rare ability to challenge assumptions while remaining collaborative. He pushed architecture, engineering standards, and development processes forward in ways that made the system — and the team — better. Code reviews, design discussions, and mentoring moments with John were consistently high-signal and grounded in empathy.
John is the kind of engineer and leader you build teams around."
Barry Goldberg
Co-Founder, Advisor and CTO · senior to John
"John was a tremendous asset to our team at ExecOnline, both as an individual contributor and team leader. He can be relied on to independently push work forward, either alone or as a group, and deliver. He is humble, coachable, open, and always honest. He knows when to get help, and when to tackle problems on his own.
John is a great programmer. He is pragmatic, focused, and skilled at keeping the code simple, clean, easy to grok, and easy to change. He was an early adopter of TypeScript at EXO — he learned it quickly, then helped others get up to speed.
If the opportunity comes along, I would absolutely hire John again."
David Christiansen
Engineering Leader · managed John directly
"Over time, John not only mastered the architectural patterns and standards we had developed — he became a true co-owner of them. He was instrumental in helping guide the team in adopting and implementing our architecture, and his leadership extended beyond our internal teams. John worked closely with our offshore consulting teams, ensuring they understood our systems and maintained the quality standards we held ourselves to. His technical skill, mentorship, and leadership made a huge impact.
John is a fantastic engineer and an equally fantastic leader. Any team would be lucky to have him."
Ryan Bell
Senior Software Engineer · managed John directly
"During our time together at ExecOnline, I had the privilege of collaborating with John on multiple projects, and I was consistently impressed by his exceptional leadership and technical expertise. He approaches every challenge with a thoughtful, solutions-oriented mindset and communicates with clarity and purpose, inspiring those around him to perform at their very best.
John is an invaluable asset to any tech team. His wealth of experience, collaborative nature, and steadfast commitment to excellence not only ensure project success but also inspire and enhance the performance of his colleagues.
I wholeheartedly recommend John for any future technical roles. He is the kind of professional who consistently sets a higher standard and elevates every team he becomes a part of."
Edmond Hui
Senior Software Engineer · worked on the same team
"I worked with John for almost 8 years as a fellow software engineer. His technical knowledge is impressive and watching him grow into the leader he's become has been great to see.
John is able to effortlessly work on his own initiatives while ensuring the team he oversees is well supported and meeting their goals.
I wholeheartedly recommend John for any leadership role in engineering. He would be an invaluable asset to any team fortunate enough to have him."
Kyle Meier
Full Stack Software Engineer · worked on the same team
"John led a small working group that I was a part of and was an excellent leader and communicator. He was incredibly knowledgeable and would continually help us optimize our code and processes.
John was also one of our code reviewers at ExecOnline, and would meticulously read through the new code that got pushed up, leaving helpful comments along the way. As a more junior engineer, my code often had numerous comments by John that were instrumental in my growth as a developer. He would always take the time to walk me through his suggestions, and I ended up learning so much from him.
John is smart, capable, and a joy to work with, and I highly recommend him for any team that is lucky enough to have him!"
James Kernan
Full Stack Engineer · worked on John's team