Open to opportunities

Calvin Bernard

@calvinbernard

Message

Seasoned Full Stack Developer with 10+ years of experience.

United States

Message

What I'm looking for

I am looking for a challenging role that fosters innovation and collaboration, with opportunities for growth.

As a seasoned Full Stack Developer with over 10 years of experience, I have a proven track record of delivering scalable and user-friendly applications across various industries, including healthcare and fintech. My expertise lies in utilizing modern technologies such as React, Golang, Node.js, and AWS to create impactful software solutions that enhance user experience and drive business outcomes.

Throughout my career, I have successfully led teams in designing secure APIs, optimizing backend performance, and implementing cloud-native architectures. At UnitedHealth Group, I spearheaded the development of a HIPAA-compliant patient engagement portal, significantly improving operational efficiency and patient satisfaction. My commitment to excellence is reflected in my ability to mentor junior developers and foster a collaborative team environment.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

UnitedHealth Group

Oct 2021 - Present (3 years 10 months)

Spearheaded the design and development of a HIPAA-compliant patient engagement portal using React, Next.js, Node.js, and Golang, allowing patients to view medical records, schedule appointments, and receive real-time alerts. Built secure, scalable RESTful APIs and serverless backends using AWS Lambda, API Gateway, and DynamoDB, reducing operational overhead by 30%.

React Next.js Node Golang AWS Lambda API Gateway DynamoDB Terraform GitHub Actions)Docker Prometheus Grafana Kubernetes

Full Stack Developer

Coinbase

Oct 2020 - Oct 2021 (1 year)

Developed mission-critical backend services in Golang and Node.js to support real-time cryptocurrency trading, handling millions of transactions per day with 99.99% uptime. Architected serverless data processing pipelines using AWS Lambda, SQS, and Step Functions to manage order matching, trade confirmations, and fraud detection asynchronously.

Golang Node AWS Lambda SQS Step Functions React Redux WebSockets Helm Kubernetes Jest Cypress Postman OAUTH2 AWS KMS

Frontend Developer

Capital One

Jan 2015 - Sep 2020 (5 years 8 months)

Rebuilt the small business banking interface using React, Redux, and TypeScript, improving customer satisfaction and increasing NPS by 15%. Migrated legacy frontend codebases into a modular React architecture, introducing reusable components and drastically reducing frontend bugs.

React Redux TypeScript Bootstrap Golang AWS S3 Cloudfront SNS D3.Js HighCharts Jenkins AWS CodeDeploy

Education

Degrees, certifications, and relevant coursework

University of Florida

BSc in Computer Science, Computer Science

2010 - 2014

Completed a Bachelor of Science degree with a focus on Computer Science. Gained foundational knowledge in programming, algorithms, and software development principles.