Staff Software Engineer, Front End

US, Remotefull timeRemote

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senior

$200k–$260k

H1B: no

horizon3ai Staff Software Engineer, Front End at Horizon3 leading front-end architecture and enablement for NodeZero platform. Drive scalable UI systems and mentor engineers across teams.

Responsibilities

We are looking for a Staff Software Engineer to join our Core Front-End team and help shape the future of the user experience across the Horizon3 NodeZero platform.
This is not a traditional feature team role. The Core Front-End team operates as a central front-end architecture and enablement group responsible for driving the long-term scalability, consistency, performance, and usability of the NodeZero platform. You will work across multiple product areas and partner closely with Product, Design, Front-End, Back-End, Platform, and Security Engineering teams to define and implement modern user experiences at scale.
As a Staff Engineer, you will lead complex technical initiatives that span multiple teams and systems. You will help define architectural direction, establish engineering standards, improve developer workflows, and guide the evolution of our front-end platform and design system. You will also play a key role in mentoring engineers, influencing technical strategy, and accelerating engineering effectiveness across the organization.
This role is ideal for engineers who enjoy solving ambiguous problems, influencing technical direction beyond their immediate team, and building systems that enable other engineers to move faster.
Technical Leadership & Architecture
Drive front-end architecture decisions across the platform
Design scalable, maintainable, and reusable UI systems and application patterns
Lead large cross-functional initiatives involving multiple engineering teams
Identify and reduce technical debt across shared front-end infrastructure
Define and evolve front-end best practices, standards, and engineering guidelines
Improve application reliability, observability, accessibility, and performance
Partner with Design to improve consistency and usability across the product

Qualification

Ability to thrive in fast-movingExperience building platformsStartup experience

Required

8+ years of experience building modern web applications used in production at scale
Deep expertise in JavaScript/TypeScript and React
Strong understanding of modern front-end architecture and application design
Experience leading large technical initiatives across multiple teams
Experience designing reusable component systems and scalable UI patterns
Strong knowledge of application state management, asynchronous data flows, and API integration patterns
Experience improving front-end performance, reliability, and maintainability
Strong debugging and problem-solving skills across both front-end and full-stack systems
Excellent written and verbal communication skills
Experience mentoring engineers and influencing technical direction
Ability to thrive in fast-moving, highly collaborative environments with evolving priorities