06/26/2025 updated

JR
100 % available

Full-stack Software Engineer with expertise in React, Node.js, and Golang

Santa Monica, CA, USA
Worldwide
Bachelor's degree, Computer Science
Santa Monica, CA, USA
Worldwide
Bachelor's degree, Computer Science

Profile attachments

for freelancer Golang-Resume-Jason-R.pdf

JavaScript (Programming Language)Amazon Web ServicesDjango Web FrameworkPython (Programming Language)Node.JsAngular 2+TypeScriptGoogle CloudReactJSVuejsFastapiReact NativeNestJSRestful ApiGolang
JavaScript/TypeScript Development
Extensive experience with React, React Native, and Node.js for building responsive web and mobile applications. Proficient in TypeScript for type-safe development and Next.js for server-side rendering.

Golang Development
Expert in building high-performance microservices, gRPC APIs, and real-time applications using Golang. Experience with implementing concurrency patterns and optimizing backend systems for low-latency communication.

Microservice Architecture
Skilled in designing and implementing microservice architectures with API gateways, load balancing, and service communication using technologies like gRPC, GraphQL, and REST.

DevOps & Cloud Infrastructure
Experience with AWS services including S3, Lambda, DynamoDB, and EC2. Proficient with CI/CD pipelines using GitHub Actions, Jenkins, and Terraform for infrastructure as code.

Database Technologies
Knowledge of SQL and NoSQL databases including MySQL, PostgreSQL, MongoDB, and Redis. Experience with data migration, normalization, and optimization.

Testing & Quality Assurance
Expertise in unit and integration testing using Jest, Mocha, Chai, and Enzyme with high code coverage standards. Experience with test-driven development methodologies.

Frontend Optimization
Skills in optimizing frontend performance through lazy loading, context APIs, and reducing unnecessary re-renders. Experience with modern CSS frameworks and responsive design.
 

Languages

EnglishNative speaker

Project history

Senior Software Engineer

HP
Building HP internal projects including Order Management System with 4M+ users. Leading backend engineering team to implement scalable architecture with 250+ API integrations. Developing high-performance gRPC APIs in Golang and implementing real-time data synchronization features.

Senior Software Engineer

Healthfirst
Built web and mobile platforms for Clinical & Medical Insurance applications and telehealth consultation. Implemented React 18+ and React Native UIs with Bluetooth capabilities. Created bi-directional streaming gRPC services and GraphQL federated gateways for optimized client developer experience.

Staff Software Engineer

Fluz
Implemented financial cash-back mobile application and CMS/CRM web apps. Built React Native Fintech mobile application on iOS using Expo. Integrated payment systems with Plaid, Stripe, and PayPal APIs. Implemented AI-powered user identification system and data visualization with modern chart libraries.

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