Open to opportunities

Dennis Hacker

@dennishacker

Message

I am a Senior Frontend Engineer specializing in React and TypeScript.

United States

Message

What I'm looking for

I seek senior frontend roles where I can lead architecture, scale component systems, and drive performance and accessibility in cloud-native environments.

I am a Senior Frontend Engineer with 12+ years building scalable, performant, and accessible web applications for enterprise platforms including Netflix, Airbnb, and Spotify. I specialize in React, Next.js, TypeScript, and modern web architecture, and I lead frontend initiatives that improve performance and developer experience.

I’ve built component libraries, real-time dashboards, and CI/CD pipelines while prioritizing accessibility (WCAG 2.1), code quality, and measurable performance gains. I enjoy mentoring teams, scaling shared systems, and driving cloud-native solutions that deliver fast, reliable user experiences.

Experience

Work history, roles, and key accomplishments

Current

Senior Frontend Engineer

Current

Netflix

Jan 2024 - Present (1 year 8 months)

Led architecture and delivery of the Supplier Management Portal, streamlining vendor onboarding and procurement workflows across global production teams. Built a performant React/Next.js frontend and real-time dashboard (Kafka, WebSockets) with Redis caching for millisecond UI refreshes and automated CI/CD.

React Next.js TypeScript Redux Kafka WebSockets AWS Terraform Jenkins

Senior Frontend Developer

Airbnb

Aug 2020 - Dec 2023 (3 years 4 months)

Developed the Booking Optimization Platform with complex interactive dashboards, improving host pricing and revenue simulation capabilities and reducing bundle size by 30%. Modernized accessibility to WCAG 2.1 standards and improved static asset delivery via S3/CloudFront, cutting asset load times by 40% for internal dashboards.

React GraphQL Recoil Accessibility AWS Lambda S3 CircleCi LaunchDarkly

Frontend Developer

Spotify

Jan 2013 - Aug 2020 (7 years 7 months)

Led a full redesign of the Spotify for Artists Dashboard, migrating to Next.js to deliver real-time listener data and campaign metrics to global artist teams. Implemented a design system with Storybook, migrated stacks to React/Styled Components, and localized internal tools for 12+ languages while introducing Terraform automation.