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Daniel Hargrave

@danielhargrave

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Senior frontend engineer building scalable, high-performance web apps for B2B SaaS.

United States

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What I'm looking for

I seek a senior frontend role at a collaborative, product-focused company where I can lead frontend architecture, mentor engineers, and deliver scalable, high-performance user experiences.

I am a results-driven Senior Frontend Engineer with 10 years of experience building scalable, performant, and user-friendly web applications for B2B SaaS and enterprise environments.

I specialize in Angular, React, Vue, Next.js, Node.js, and Tailwind CSS, and I have strong expertise in design systems, component libraries, responsive layouts, and performance optimization.

I have led frontend architecture and technical initiatives, mentored engineers, implemented testing strategies, and introduced coding standards that reduced technical debt and improved maintainability across teams.

I focus on delivering high-quality, maintainable code while balancing delivery speed with long-term scalability, accessibility (WCAG), and measurable performance improvements.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Connection

Oct 2025 - Dec 2025 (2 months)

Led frontend architecture for enterprise B2B SaaS using Angular and Node.js, built reusable component libraries and optimized performance to reduce page load time by 35%. Mentored engineers and introduced testing and code review standards to improve maintainability.

Angular TypeScript Node D3.Js Responsive Design Jasmine Karma Performance Optimization

Software Engineer

Rome Blockchain Labs

Aug 2020 - Aug 2022 (2 years)

Built secure, responsive frontends for blockchain platforms using React and Next.js, created reusable component libraries and optimized frontend performance for enterprise dashboards. Implemented testing and mentored team members on modern frontend practices.

React Next.js Redux Jest Cypress API Integration Performance Optimization

Full Stack Developer

Evolution Marketing

Aug 2018 - Jul 2020 (1 year 11 months)

Designed and implemented full-stack marketing and SaaS web applications with Angular and Node.js, built reusable UI components aligned to design systems, and delivered responsive, mobile-first experiences while maintaining test coverage.

Angular Node REST APIs Jest Mocha Responsive Design

Web Developer

Inoxoft

Sep 2015 - Jun 2018 (2 years 9 months)

Developed modular full-stack applications with React and Node.js, created standardized component patterns and improved frontend performance via lazy loading and code splitting while ensuring accessibility compliance.

React Node Jest Cypress Performance Optimization Accessibility Component Libraries

Education

Degrees, certifications, and relevant coursework

Coleman University

Bachelor of Science, Computer Science

2011 - 2015

Completed a Bachelor of Science in Computer Science with coursework and projects focused on software development, web technologies, and full-stack application design.