Front-End Engineer, AWS Holmes

Job :  | Amazon Web Services, Inc.

Own the front-end architecture for the next generation of AWS Holmes, AWS's GenAI-powered content quality platform. You'll build production interfaces in React and Type Script on the AWS Clouds cape Design System, turning agentic prototypes into self‑service rubric management workflows and human‑in‑the‑loop evaluation experiences that serve builders across the company. Holmes processes over 10 million scans annually, and this role leads the UI work that brings rubric creation, testing, and publishing directly to program owners at Amazon scale.

• Lead front‑end development for the next generation of Holmes, building a scalable rubric management platform in React and Type Script on the AWS Clouds cape Design System
• Transform CD agent pattern prototypes into production‑grade, accessible UI frames – conversational rubric creation, interactive rule testing, and guided workflows
• Build self‑service rubric management: end‑to‑end creation, rule editing with live preview, draft/publish lifecycle, evaluation dashboards, and scan report previews
• Design human‑in‑the‑loop evaluation surfaces: diff‑style content mutation views, batch review interfaces, and feedback collection that drives rubric improvement
• Deliver platform UX for program integrations: simplified scan workflows, finding annotations, collaborative sharing, team permissions, and real‑time scan status
• Own front‑end operational excellence: performance monitoring, accessibility compliance, Cloud Watch RUM instrumentation, and cross‑browser validation

You work with product managers to understand customer experiences and translate requirements into solutions. You create interactive prototypes and participate in user research sessions to validate design decisions early. You write HLD and spec documents for new features, align with backend engineers on API contracts, and implement production components in React and Type Script. You attend team operational excellence sessions and knowledge transfer meetings, contribute to team demos showcasing new capabilities, and present your work in internal tech talks.

You review teammates' code for accessibility and component quality, and you investigate front‑end observability alerts to maintain a reliable user experience.

The Holmes team builds and operates a comprehensive security scanning and quality assurance platform that enables AWS builders to identify and remediate security risks early in the development lifecycle. Holmes accelerates secure content delivery by providing automated scanning, GenAI‑powered quality validation, and early feedback mechanisms that protect millions of AWS training experiences and internal/external content at scale.

• 1+ years of agile software development methodology experience
• Experience with common front‑end technologies such as HTML, CSS, JS, Type Script, and Node
• Strong understanding of UI/UX design principles and accessibility standards
• Experience developing responsive and performant web applications

• Experience with AWS Clouds cape Design System or similar component libraries
• Familiarity with observability tools such as Cloud Watch, RUM, or similar
• Knowledge of licensing compliance and security scanning domain

The base salary range for this position is $143,700 – $194,400 annually. Your Amazon package will include sign‑on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription), basic life & AD&D, supplemental life plans, EAP, mental health support, medical advice line, flexible spending accounts, adoption and surrogacy reimbursement, 401(k) matching, paid time off, and parental leave.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit (Use the "Apply for this Job" box below).

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