Senior Frontend Engineer

Greyson
Nevins-Archer

Customer-obsessed frontend engineer building enterprise applications at AWS. Based in Brooklyn, NY.

01 — About

The intersection of
engineering and design.

I'm a senior frontend engineer specializing in enterprise AI consoles at AWS, where I've shipped products used by 15,000+ customers with zero launch incidents. I care about the gap between engineering and design — building things that are scalable under the hood and genuinely good to use.

My path here is a bit unusual. I studied the social science of the internet at Oxford, researched internet governance under Vint Cerf at Google, and contributed to the Internet Society's work on the future of the internet — before going to AWS to actually build it.

That thread runs through everything I do: I think about technology at a systems level, not just a code level.

Technologies I work with

ReactTypeScriptNext.jsNode.jsAWSPythonTailwindCDKCypress

02 — Experience

Where I've worked.

Senior Frontend Engineer @ Amazon Web Services

Aug 2020 — Present

Applied AI Solutions — AWS Security Agent

2025 — Present
  • Led full console launch for AWS Security Agent, debuted at re:Invent 2025 with Matt Garman
  • Built the React/TypeScript experience connecting enterprise customers' GitHub repos, VPCs, Route 53 domains, Lambda, and CloudWatch logs to frontier AI agents with blast-radius controls
  • Shipped MVP in two months; co-wrote MCP documentation now reused across multiple AWS teams

Entity Resolution

2024 — 2025
  • Single-threaded frontend owner for 10+ launches; built CloudWatch log ingestion, cross-region pipelines, LiveRamp + TransUnion digital identifier support
  • Led UX/product vision integrating Entity Resolution with Amazon Connect Customer Profiles
  • Achieved 50% build time reduction across Clean Rooms and Entity Resolution

Amazon Connect Customer Profiles

2020 — 2024
  • Founding frontend engineer for re:Invent 2020 launch — built with no UX designer, no playbook
  • Expanded S3 integrations to custom/implicit types, now 35% of all usage (900+ integrations)
  • Delivered 50% adoption growth + $1M ARR; improved 3G load times by 19 seconds for 15k+ customers
  • Built Event Triggers and AI features for Customer Profiles
  • Launched Outbound Campaigns integration with Customer Profiles

03 — Projects

Things I've built.

AWS Security Agent Console

Featured Project

AWS Security Agent Console

Led full console for AWS's AI-powered security testing platform. Connects GitHub repos, VPCs, Lambda, and CloudWatch to frontier agents with clear blast-radius controls. Debuted at re:Invent 2025.

ReactTypeScriptAWSAI
Amazon Connect Customer Profiles

Featured Project

Amazon Connect Customer Profiles

Founding engineer for re:Invent 2020 launch. Built from scratch with no UX designer, now serving 15,000+ customers with 35% of integrations using S3 architecture I designed.

ReactAWSEnterprise
AI Run Coach web dashboard
AI Run Coach mobile app

Featured Project

AI Run Coach

LLM-enabled training assistant that syncs with Apple Health on iOS. Web dashboard with custom Claude agent for run recommendations, insights, and personalized training plans.

Next.jsClaude AIApple HealthReact Native

Other Noteworthy Projects

Create custom mosaics from your Spotify album covers

ReactSpotify API

Rece

React Native bill-splitting app with OCR + entity parsing

React NativeOCR

MakeFlaskReact

OSS CLI to scaffold React/Flask stacks

CLIPythonReact

Herd Label

Spotify analytics dashboards for 200+ users

ReactSpotify API

Oxford Thesis

Computational analysis of public sentiment toward the US Supreme Court using NLP

NLPPythonResearch

04 — Contact

Get in touch

I help startups and teams build applications, websites, and digital products. Whether you have a project in mind, need frontend expertise, or just want to chat — feel free to reach out.

Say Hello