David Kelly
@davidkelly
Backend-focused software engineer building scalable .NET and Node systems with modern React frontends.
United StatesWhat I'm looking for
I’m a Software Engineer with 8+ years building scalable backend and distributed systems across healthcare, SaaS, fintech, media, and eCommerce. I focus on end-to-end delivery—architecture design, cloud infrastructure, CI/CD automation, and operational reliability.
In my most recent role, I led backend design and development of scalable ASP.NET Core services for patient portal workflows, including appointment scheduling, prescription refills, claims workflows, and secure member authentication. I designed REST APIs backed by Azure SQL and caching layers, cutting API latency by ~30–40%, and built observability (structured logging, distributed tracing, centralized monitoring) to reduce incident triage time by ~40%.
I also enjoy shaping systems for long-term maintainability: implementing RBAC-aligned audit-friendly logging for secure PHI handling, refactoring legacy services into secure ASP.NET Core APIs, and deploying cloud infrastructure with Terraform and Docker. From full-stack freelance work to modern frontend builds, I bring a consistent approach to performance, scalability, and deployment reliability.
Experience
Work history, roles, and key accomplishments
Led backend modernization for Kaiser Permanente patient-portal services, building ASP.NET Core REST APIs for appointments, refills, claims workflows, and secure member authentication. Improved API latency 30–40% and cut on-call incident triage time ~40% through observability upgrades and Azure-based CI/CD with staged Docker deployments.
Delivered 30+ production full-stack platforms as a Toptal senior engineer, owning architecture, deployment strategy, REST APIs, and authentication/RBAC for multiple SaaS and fintech systems. Standardized cloud infrastructure across Azure and AWS using Terraform/Docker and implemented CI/CD with GitHub Actions/Azure DevOps to reduce release risk.
Education
Degrees, certifications, and relevant coursework
Cornell University
Bachelor of Science, Computer Science
2010 - 2014
Completed a B.S. in Computer Science at Cornell University from 2010 to 2014.
Cornell University
Master of Engineering, Computer Science
Earned an M.Eng. in Computer Science from Cornell University in 2014.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
Skills
Interested in hiring David?
You can contact David and 90k+ other talented remote workers on Himalayas.
Message DavidFind your dream job
Sign up now and join over 100,000 remote workers who receive personalized job alerts, curated job matches, and more for free!
