Looking for a job

Erik Sager

@eriksager

Message

Full-stack software engineer focused on secure, cloud-native microservices and high-performance user experiences.

United States

Message

What I'm looking for

I’m looking for an Agile, cross-functional team where I can build secure, scalable microservices and responsive front ends on AWS—delivering production-ready software with measurable performance improvements.

I build scalable web applications and cloud-native systems, delivering secure, maintainable, production-ready software. I focus on RESTful APIs, microservices architectures, and highly responsive, automated data-driven front-end interfaces using Java, C#, Python, Angular, TypeScript/JavaScript, SQL, and AWS.

Most recently, I designed and maintained backend services in Java and C# for thousands of active users, including authentication, matchmaking, and real-time cross-platform interactions. I led performance-focused work like deploying a Redis-compatible high-performance data store (Dragonfly) for leaderboards, and I built secure authentication/authorization with encrypted client-server communication.

Earlier, at Capgemini, I designed and deployed enterprise web applications and integrated AWS hosted databases for live data visualization. I also built an AWS IoT Core + DynamoDB pipeline for real-time data delivery, created Python automation and Power BI dashboards, and improved scalability by optimizing data processing and API performance across services.

Experience

Work history, roles, and key accomplishments

Full-Stack Engineer

SymTek Software Solutions

Mar 2026 - Apr 2026 (1 month)

Owned end-to-end development of a real-time cattle auction platform, designing the Supabase database schema and deploying the front end on Vercel. Built a Next.js/TypeScript bidding interface and implemented self-testing to ensure stability during live, time-sensitive financial auctions.

Supabase Next.js TypeScript Vercel SQL Automated Testing Financial Transaction Reliability

Full-Stack Engineer

Perfect Day Games

Mar 2024 - Oct 2025 (1 year 7 months)

Designed and maintained scalable Java and C# backend services supporting thousands of active users, including authentication, matchmaking, and real-time cross-platform interactions. Implemented secure RESTful APIs, server-side Google/Apple in-app purchase validation, and a Redis-compatible Dragonfly store to reduce latency for leaderboards and ranking updates.

Java C#RESTful APIs Authentication Microservices In App Purchases FlatBuffers Real Time Systems

Application Software Engineer

Capgemini Engineering

Jul 2022 - Jan 2024 (1 year 6 months)

Built scalable web applications for enterprise clients by developing front-end interfaces and backend services integrated with AWS hosted databases for live data visualization. Created an AWS IoT Core and DynamoDB data pipeline for real-time delivery to web apps, along with Python automation and Power BI dashboards to streamline workflows.

AWS IoT Core DynamoDB Web Development REST APIs Data Pipelines Power BI Power Automate Python Performance Optimization

Programming Instructor

Coding4Youth

May 2019 - Aug 2019 (3 months)

Instructed students in programming and game design using Java, Lua, and GameMaker Studio, delivering hands-on projects that emphasized creativity and problem solving. Developed custom curricula for advanced learners and managed multiple simultaneous courses.

Java Lua Curriculum Development Lesson planning Hands On Coding Game Design Classroom Management