AJAndrew Johnson
@andrewjohnson3
Senior software engineer delivering scalable, user-centric web platforms with modern JavaScript and cloud expertise.
United StatesWhat I'm looking for
I am a Senior Software Engineer with 10+ years building high-impact, scalable web platforms across healthcare and e-commerce. I specialize in front-to-back product development using React, Next.js, Node.js, TypeScript, and AWS to deliver inclusive, high-performance experiences.
At Highmark Health I led the MyHighmark portal launch that onboarded 700K+ members within weeks and scaled to 6.8M users, modernized hybrid mobile apps to increase engagement 22% YoY, and created a reusable React component library that reduced feature rollout time 35%.
Previously at Walmart I helped build the Same-Day Grocery Delivery platform, cutting per-order costs ~20% and scaling delivery operations nationwide; I also implemented centralized design systems and resilient CI/CD practices to maintain high uptime and faster incident resolution.
I focus on measurable outcomes: accelerating analytics delivery 3×, maintaining strong automated test coverage, ensuring WCAG 2.1 AA accessibility, and leveraging AI tools and data pipelines to drive personalization and growth. I collaborate closely with product, UX, and data teams to turn user journeys into impactful features.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Highmark Health
Mar 2022 - Present (3 years 8 months)
Led development of the MyHighmark digital portal using React, TypeScript, Next.js and AWS-backed microservices, onboarding 700K+ members within weeks and scaling to 6.8M users while increasing mobile engagement 22% YoY.
Built and scaled Same-Day Grocery and Spark Delivery platforms with React, TypeScript, Node.js and Python, reducing per-order costs ~20% and scaling services to reach 84% of U.S. households.
IBDelivered 100+ client projects across fintech, healthcare and e-commerce using React, Redux and TypeScript, modernized legacy apps and reduced front-end defect rates while cutting page load times 35%.
Education
Degrees, certifications, and relevant coursework
TUTexas Tech University
Bachelor of Science, Computer Science
2011 - 2015
Completed a Bachelor's degree in Computer Science from 2011 to 2015 focused on software engineering fundamentals and applied web technologies.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
Skills
Interested in hiring Andrew?
You can contact Andrew and 90k+ other talented remote workers on Himalayas.
Message AndrewFind your dream job
Sign up now and join over 100,000 remote workers who receive personalized job alerts, curated job matches, and more for free!
