Design Engineer, Mid-level

Spear AI

. Code production-ready prototypes, modular front-end components, and core user-facing features .

Posted 9/30/2026full-timeRemote • United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Frontend Development with a strong focus on React, Next.js, and TypeScript, while ensuring adherence to accessibility standards and performance metrics. Proven ability to design and implement user-facing features and collaborate effectively on mission-critical projects.

Highest-signal resume keywords

ReactNext.jsTypeScriptWCAG 2.2 AA AccessibilityCore Web Vitals

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Frontend DevelopmentModular Component DesignClean Code PracticesPerformance MetricsAccessibility Standards

Soft Skills

CollaborationProblem SolvingVisual Direction

Tools & Technologies

TailwindCSSLighthouse

Certifications & Qualifications

U.S. Security Clearance

Industry Keywords

User ExperienceDesign WorkflowsDefense Projects

Tech Stack

Tools & technologies

JavaScriptNext.jsReactTypeScript

About the role

Key responsibilities & impact

Code production-ready prototypes, modular front-end components, and core user-facing features
Redesign and refine key features and flows
Identify visual issues and UX friction
Participate in project kickoffs to understand the product and audience
Propose visual direction and design solutions
Champion application performance, WCAG 2.2 AA accessibility, and codebase maintainability
Collaborate directly with leadership and contribute to mission-critical defense projects

Requirements

What you’ll need

Typically 4+ years of Frontend or Design Engineer experience
Strong portfolio of shipped interfaces demonstrating both design and front-end build experience
Deep, professional experience with React, Next.js, and TypeScript
Highly fluent with Tailwind and modern CSS fundamentals, including container queries, cascade layers, specificity, OKLCH color spaces, view transitions, flexbox, and grid
Strong understanding of accessibility standards, including WCAG 2.2/WCAG 2.2 AA
Strong understanding of core performance metrics, including Core Web Vitals and Lighthouse
Understanding of design workflows and their technical or hardware constraints
Ability to write clean, maintainable code
Ability to independently audit and evaluate LLM output
U.S. citizenship required
Must be able to obtain or currently hold a Secret or Top Secret U.S. security clearance

Benefits

Comp & perks

Unlimited PTO
Dedicated sick time
Medical, dental, and vision coverage
11 paid holidays
Professional development opportunities and resources
Flat organizational structure with direct access to leadership
Remote-first work arrangement
401(k) with company match
Referral bonuses
Performance bonuses
Life insurance and disability coverage
Technology home office setup stipend
Professional certification reimbursement (position dependent)