Open to opportunities

Caitlyn Zheng

@caitlynzheng

I build scalable .NET microservices and secure CRM and financial web applications.

At HubSpot, I lead scalable microservices for CRM workflows, building C#/.NET Core services and secure REST APIs for high-volume SaaS customers across AWS and Azure.

I reduced authentication-related incidents by 30% through OAuth2, OpenID Connect, JWT, Azure AD, and Okta integrations. I also shortened deployment cycles by 40% by automating builds, tests, and blue-green deployments with Azure DevOps, Docker, Kubernetes, and Git.

Previously, I delivered full-stack banking features at Capital One and portfolio and trading systems at Putnam Investments. My work spans Angular and React interfaces, SQL Server performance tuning, distributed services, automated testing, and production troubleshooting in regulated environments.

I enjoy partnering with product, UX, QA, and operations teams to ship reliable features, and I mentor engineers through code reviews, architecture sessions, and pair programming.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

HubSpot

Mar 2022 - Present (4 years 7 months)

Led design and implementation of scalable microservices for CRM workflows, built secure REST APIs, and implemented CI/CD pipelines. Mentored engineers and optimized performance for high-volume SaaS customers.

C#.NET Core Docker Kubernetes SQL Server AWS Azure OpenID Connect JWT Azure AD Okta Azure DevOps Git React Angular CI CD Microservices

Full Stack Engineer

Capital One

Sep 2021 - Mar 2022 (6 months)

Developed full-stack features for banking applications, implemented microservice endpoints, and contributed to CI/CD pipelines. Optimized SQL Server queries and participated in Agile/Scrum ceremonies.

C#.NET Core Angular React SQL Server AWS Azure DevOps Git OpenID Connect JWT Azure AD Okta REST JSON CI CD

Software Engineer

Putnam Investments

Jan 2020 - Aug 2021 (1 year 7 months)

Engineered backend services for portfolio and trading platforms, created internal web tools, and modernized legacy services. Designed and tuned SQL Server schemas and worked within Agile/Scrum teams.

C#.NET Core SQL Server Angular React REST APIs Microservices Agile Scrum

Technology Associate

Putnam Investments

Jul 2018 - Jan 2020 (1 year 6 months)

Supported development of internal investment and reporting applications, built RESTful APIs and data access layers, and developed web UI components. Contributed to automated testing and build processes.

C#ASP.NET SQL Server JavaScript HTML CSS REST APIs Git