Fractional CTO | Enterprise Data Architect

Building AI-Ready, Efficient Engineering Teams.

I provide the senior technical leadership that growth-stage companies need to turn product vision into reality. I partner with you to build a high-performing, collaborative engineering culture and a scalable, data-driven foundation for your business.

Do you have a clear product vision but an uncertain technical path?

You’ve found your market and your customers are asking for more. But your engineering team is stretched thin, critical architectural decisions are being delayed, and you lack the senior technical leader to guide your company through its next phase of growth. This is a common challenge, and it’s where I can help.

How Can I Help?

I partner with companies in two primary ways, providing the right level of support to match your needs.

I Need a Technical Leader

Service: Fractional CTO

For companies needing ongoing strategic guidance, team leadership, and architectural oversight. I join your leadership team, providing the expertise of a seasoned CTO for a fraction of the cost of a full-time hire.

I Need A Project Solved

Service: Data & Search Solutions

For companies with a specific, complex challenge that requires deep, hands-on expertise. I lead the design and implementation of enterprise search, data harmonization, and multi-model data architecture projects.

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Meet David Cassel

I’m a pragmatic, hands-on technical leader with over 30 years of experience helping companies solve their most complex data and technology challenges. I founded 4V Services and grew it to an 18-person team, delivering over $11 million in value to clients ranging from startups to Fortune 500 companies. My leadership philosophy is simple: great systems are built by great teams. I believe in fostering a culture of open communication and collaboration, where the best ideas are elicited from the team, not imposed from the top. I excel at translating complex technical concepts for non-technical founders and executives, ensuring that technology decisions are always aligned with business goals.

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My Approach

Pragmatic AI Adoption

AI is a powerful tool, but it’s not a magic wand. Poor software development practices with AI just produces poor results faster. My approach is to use AI to augment the expertise of your team, implementing it responsibly to boost productivity while keeping the human developer accountable for quality.

Collaborative Team Building

I believe that high-performing teams are built on a foundation of trust and buy-in. I work with your engineers to establish shared standards and effective processes, creating a collaborative environment where every team member is empowered to do their best work.

Focused Architecture

I specialize in designing and building robust, scalable data architectures. Whether it’s selecting the right database, a real-time data pipeline, or an enterprise search solution, my focus is always on delivering a practical, results-driven solution that meets your business needs today and scales for tomorrow.