Horizon: Design Engineer (Mid-level)

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Horizon: Design Engineer (Mid-level) in USA

Spear AI
Full time
Email

USA
09/29/2026
Report

Remote

Responsibilities

Build production-ready prototypes, modular frontend components, and core user-facing features.
Redesign and refine key features and flows by identifying visual issues and UX friction.
Participate in project kickoffs and propose visual direction based on product and audience understanding.
Champion performance, accessibility, maintainability, responsiveness, animation, loading states, and typography quality.
Audit LLM-generated output and apply independent engineering judgment to produce elegant solutions.
Collaborate directly with teammates and leadership in a small, fast-moving product organization.

Requirements

Typically 4+ years of Frontend or Design Engineer experience.
Deep professional experience with React, Next.js, and TypeScript.
High fluency with Tailwind and modern CSS, including container queries, cascade layers, specificity, OKLCH color spaces, view transitions, flexbox, and grid.
Strong understanding of WCAG 2.2 accessibility standards and performance metrics including Core Web Vitals and Lighthouse.
Portfolio of shipped interfaces demonstrating responsibility for both design and frontend implementation, with clear explanation of decisions and trade-offs.
Deep understanding of design workflows and the technical or hardware constraints surrounding them.
Must be a U.S. citizen and able to obtain or currently hold a Secret or Top Secret U.S. security clearance.

Benefits

Remote-first work arrangement.
Unlimited PTO and dedicated sick time.
Medical, dental, and vision coverage.
11 paid holidays.
Professional development opportunities and resources.
401(k) with company match.
Referral bonuses, performance bonuses, life insurance, and disability coverage.
Technology home office setup stipend.
Professional certification reimbursement where applicable.
Full-time, exempt position with no overtime eligibility.

Spear AI

Spear AI builds AI/ML-driven hardware, software, and data solutions for national security, including unmanned maritime sensor systems designed for operational deployment across classification levels. The privately held company sells products and implementation services to defense agencies and con...

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