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full stack

@ramonwinters

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Senior software engineer specializing in scalable systems and performance optimization.

United States

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What I'm looking for

I’m looking to lead architecture and performance-critical product work, partner cross-functionally, and modernize systems with strong testing/CI/CD. I want teams where scalable design, observability, and mentoring are valued.

I’m a senior software architect and engineer with 15+ years of experience in full-stack development and system design. I focus on scalable solutions, performance optimization, and building reliable platforms that teams can grow with.

Recently, I redesigned data management architecture across 50 components using Redux Toolkit, improving platform efficiency by 45%. I led frontend optimization for a video streaming platform—React.memo, strategic lazy loading, and code-splitting—delivering 30% faster page loads and higher Lighthouse scores.

I rebuilt and hardened backend infrastructure by reworking a Django REST API, adding optimized queries, connection pooling, and Redis caching to reduce response times from 800ms to 480ms. I also designed a distributed streaming system with Celery, AWS S3, and CloudFront, supporting 100,000 concurrent streams with sub-second latency and 99.97% uptime.

I’m an engineering leader who mentors teams and sets standards for service communication, error handling, and observability—patterns adopted by multiple teams and reducing onboarding time by 40%. I drive delivery through automated testing and modern CI/CD, improving deployments from 2 days to 4 hours while reducing failures by 60%.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Kfcow

Dec 2024 - Present (1 year 4 months)

Redesigned the data management architecture with Redux Toolkit across 50+ components, improving platform efficiency by 45% and standardizing application state handling. Rebuilt the Django REST API with optimized queries, pooling, and Redis caching, cutting response times from 800ms to 480ms while handling 3x more traffic.

Redux toolkit Redis Celery AWS S3 CI CD

Senior Frontend Developer

Upcall

Apr 2022 - Nov 2024 (2 years 7 months)

Built a frontend architecture for an enterprise calling platform serving 10,000 businesses and 500,000 monthly users while maintaining sub-2-second page loads. Led a UI/UX overhaul across 40 components, improving accessibility to WCAG 2.1 AA, reducing support tickets by 30%, and increasing mobile conversions by 22%.

Frontend Architecture Chart.Js Responsive Design WCAG 2.1 AA Visual Regression Testing Docker Performance Optimization

Senior Full Stack Developer

Oracle

Feb 2020 - Mar 2022 (2 years 1 month)

Built Oracle Cloud Infrastructure Database Migration Service from scratch, enabling zero-downtime migrations of enterprise databases up to 10TB; completed 5,000 migrations with a 99.95% success rate. Designed a Node.js backend with message queues and PostgreSQL persistence, achieving 99.9% availability and reducing response times from 1.2s to 840ms.

Automated Testing Node Message Queues PostgreSQL React Error Handling Logging CI CD

Senior Full Stack Developer

MailerLite

May 2016 - Jan 2020 (3 years 8 months)

Built a real-time campaign analytics platform for 100,000 users across 130 countries, reducing data latency from 5 seconds to 2 seconds (60% faster). Created a drag-and-drop form builder with 50+ field types and conditional logic, increasing user engagement by 70%.

Real Time Analytics Message Queues RESTful APIs Database Optimization Indexing Caching Testing

Full Stack Developer

Wayfair

Jan 2013 - Apr 2016 (3 years 3 months)

Developed 15 major features for an e-commerce platform serving 30M monthly users, improving engagement by 20% and reducing cart abandonment by 8% through SSR and checkout optimizations. Led migration from a monolith to 12 microservices with service discovery and container deployments, cutting build times from 45 to 22 minutes and improving deployment flexibility.

Server Side Rendering Microservices Service Container Deployment Performance Optimization Lazy Loading

Web Developer

OhioHealth

Jun 2009 - Dec 2012 (3 years 6 months)

Designed and built websites from scratch with cross-functional teams, delivering projects on time by balancing technical needs with business requirements. Automated business processes with custom web applications, reducing manual work by 40%, and reduced bugs by 30% through unit tests, code reviews, and improved merge workflows.

Web Application Development Requirements Gathering Unit Testing Code Review Cross Functional Collaboration