About Me

Sylvester Carolan


“Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.”

~ Martin Golding

Bio

Born and raised in London, I moved to the New York in 1993 where I met my future wife Lia. We have an awesome, 8th grader, Jaiden, who keeps me laughing and loving life. I call Raleigh, North Carolina home.

Professionally: I'm a solutions engineer and architect — 20+ years building regulated, high-concurrency data platforms, most recently a production-grade auditable-LLM civic platform. I build the bridge between legacy systems and modern AI delivery: LLM extraction that feeds code-computed decisions, every claim cited to a source, every output reproducible and audit-trailed.

Why this site?

I've been a software engineer all my life and wanted to have a place where I could experiment with different technology and interests. I didn’t really build the site for anyone accept me, so if by chance you do find something interesting, or inspiring, let me know.

What's on the site?

Technology

Since high school, I have always been drawn to mathematics. I love the way it describes the world in both its simplicity, and complexity. Mathematics was the springboard for computer science for me, from my very first ZX81. You’re bound to come across multiple articles, references and links to all things technical. Creativity. Building user interfaces led me to animation, design, UI and UX. This led to a number of years studying, Motion graphics, Cinema 4D and movie making. Eventually I would come full circle, back to JavaScript and some of the 3D animation tools and libraries.

Work Experience

Twenty-plus years building regulated, high-concurrency data platforms — front-to-back trading systems, resilience infrastructure for thousands of enterprise applications, and most recently a production-grade civic AI platform.

  • Clued In Democracy (Founder, Principal Engineer): built and operate a grounded-LLM pipeline that turns messy public records into verified, deterministic assessments — every claim cited to a primary source, scores computed by code (never trusted to the model), cross-model verification, human review gates, and 1,500+ tests.
  • Wells Fargo (Engineering Lead): resilience and automated-failover infrastructure for 5,000+ enterprise applications; governance, security, and observability standards for regulated pipelines; led organization-wide adoption of an enterprise orchestration platform.
  • Credit Suisse (SVP & Regional Tech Lead): directed engineering for a high-frequency transaction engine and its migration from monolithic legacy code to distributed microservices; built and led global teams up to 200+ engineers.

Toolbox: Go · Python · SQL · PostgreSQL at scale · Kubernetes (Talos, GKE) · LLM orchestration · event-driven architectures.

Politics and Life

I often to ask myself, “How are you going to change the world today?” More on this later.

Technology

Science, Mathematics and Computing

Art and Creativity

Animation, Motion graphics and maybe a little story telling

Politics and Life

with a little work experience thrown in