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ulalallalaa User

@ulalallalaauser

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Senior Full Stack Engineer focused on scalable, secure SaaS platforms.

United States

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What I'm looking for

I seek senior engineering roles building scalable, secure SaaS platforms with strong DevOps, cloud-first practices, collaborative teams, and opportunities to drive architecture and performance improvements.

I am a Senior Full Stack Engineer with 9+ years building scalable, high-performance SaaS and web platforms across fintech, healthcare, and e-commerce.

I specialize in React, Node.js, .NET Core, GraphQL and cloud infrastructure (AWS, Azure, GCP), and I prioritize clean code, security, and cross-team collaboration.

I've led microservices architecture and CI/CD automation efforts, modernized backends (for example migrating from Firebase to PostgreSQL and integrating BigQuery), and improved performance—reducing frontend load times and API response times through targeted optimizations.

I enjoy building reliable systems that scale, driving DevOps improvements with Docker, Kubernetes, Terraform and GitHub Actions/Bitbucket Pipelines, and delivering compliant solutions such as HIPAA-aware healthcare platforms.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

Flexpa

Aug 2023 - Present (2 years 10 months)

Engineered and scaled a high-traffic SaaS platform, reducing frontend load times by 25% and API response times by 20% while migrating from Firebase to PostgreSQL and implementing microservices for real-time communication.

Next.js NestJS React Native .NET Core PostgreSQL RabbitMQ Docker CI CD AWS

Full Stack Engineer

Dandy

Apr 2019 - Aug 2023 (4 years 4 months)

Developed AI-powered recommendation and appointment systems, built cross-platform web and mobile features with React/React Native and C#, and deployed serverless services on AWS to improve scalability and performance.

React React Native C++GraphQL AWS Lambda Redis JWT 2FA Serverless

Software Developer

Cognizant

Aug 2015 - Apr 2019 (3 years 8 months)

Designed and maintained Node.js and ASP.NET Core microservices for fintech applications, improved reliability with automated testing and monitoring, and implemented real-time features supporting heavy traffic.

Node ASP.NET Core TypeScript Microservices Socket.IO Cypress Sentry Redis