Chester Frazier

Curriculum Vitæ · September 2026

Chester
Frazier.

Senior software engineer · agentic AI · serverless AWS · native mobile

25+years building production systems · since 2002
BasedOcean Springs, Mississippi · Remote Mailchester@cwfrazier.com Webcwfrazier.com Codegithub.com/cwfrazier1
I.About

Twenty-five years of building production systems. Started as a student technology consultant in 2002, founded my own IT-services and custom-software firm at twenty-three, and have been shipping software end-to-end ever since. Today I work across the whole stack — native Swift and Kotlin on the App Store, serverless AWS backends, React consoles, multi-tenant SaaS — with a current focus on agentic AI built on the Claude Agent SDK and MCP. I take products from architecture through implementation, deployment, billing, identity, and support.

Operating entity · Frazier Industries Mach 2, LLC

II.Experience

Professional history

Oct 2025 — present Automation Engineer Gulfport, MS · Remote

AGJ Systems & Networks

Automation Engineer

Frogger is the production agentic-AI platform I built for the MSP to do real IT work autonomously — peer-gated, multi-tenant, and resolving ~4,500 tickets per 30-day window in live use today.

  • Designed and shipped Frogger end-to-end — a multi-tenant Teams bot on the Claude Agent SDK that resolves IT tickets autonomously across 50+ client tenants and 90+ managed endpoints. Auto-resolves ~4,500 tickets per 30-day window, with peer-approval gating on high-blast-radius actions.
  • Built per-server RDP code-signing trust chain that suppresses both Microsoft RDP security warnings (unknown publisher + identity verification) without per-user certificate provisioning. Live across the fleet.
  • Architected the serverless backend: Python on AWS Lambda, DynamoDB, API Gateway, EventBridge Scheduler, Microsoft Graph + Bot Framework, ConnectWise Manage REST, NinjaOne v2, ConnectSecure CMDB sync, and a nightly phishing-data pipeline.
  • Built an Adaptive Cards approval flow in Teams for high-impact actions (run-command at scale, mass deploys), routed through a peer-approval group chat instead of hard-coded limits.
  • Automated monthly M365 license + SKU + spend reports across the partner tenant and 124+ customer tenants — fully unattended via EventBridge cron, Haiku-summarized, SES-delivered.
Mar 2023 — Sep 2025 Cybersecurity Engineer Bakersfield, CA

Grapevine MSP Technology Services

Cybersecurity Engineer

  • Owned the Microsoft 365 Defender, SentinelOne, and endpoint-hardening stack for an MSP serving SMB and mid-market clients.
  • Built PowerShell automation for onboarding / offboarding, MFA enforcement, conditional-access rollout, and incident-response runbooks.
  • Architected the network-security baseline: pfSense, OpenVPN, WireGuard, and zero-trust remote access for distributed workforces.
Dec 2017 — May 2019 Application Developer Bakersfield, CA

California Resources Corporation

Application Developer

  • Built internal web tooling on IIS for an upstream oil & gas operator. HTML / ASP.NET / C# / JavaScript applications backed by SQL Server, supporting day-to-day operations across the engineering and field teams.
Jan 2008 — Nov 2017 Founder / Sole Engineer Bakersfield, CA

Frazier Industries, LLC

Founder / Sole Engineer

  • Operated a small IT-services and custom-software firm for nearly a decade. Shipped .NET / ASP.NET / C# / SQL Server applications for industrial clients across the Bakersfield region.
III.Projects

Independent & personal work

Founder / Sole Engineer 2023 — present

Check on Mine

Personal safety platform for families and caregivers

Cross-platform safety and wellness monitoring system with native iOS (SwiftUI) and Android (Jetpack Compose) apps, a macOS menu-bar companion, and a serverless PHP backend on AWS Lambda (Bref). Features include a 10-second-cancel SOS, trip mode with real-time location, medication adherence tracking, scheduled wellness check-ins with tiered escalation, geofenced safe zones, severe-weather alerts, and activity-pattern learning for anomaly detection. In-house JWT auth (migrated from Cognito). Built for elderly users and the people who love them.

iOS·Android·macOS·AWS Lambda·DynamoDB·SES·SNS·End User Messaging
Architect / Sole Engineer 2024 — present

Cass — Private LLM Assistant Platform x.cwfrazier.com

Production agentic-AI platform with persistent memory & ~30 custom tools

Independent project. Production agent platform built on the Claude Agent SDK + FastAPI, with a persistent memory layer over a custom MCP server backed by DynamoDB. An auto-router classifies each request and dispatches to a full-tools agent or a cheap Haiku path via the Anthropic API, with automatic fallback under rate limits. Roughly 30 first-party tools span calendar, mail (SES catch-all → DDB), Signal / iMessage indexing, Plaid finance, browser automation (Playwright), and outbound voice via Amazon Connect.

Claude Agent SDK·FastAPI·MCP·DynamoDB·SES·Amazon Connect·Playwright
IV.Skills

Stack & toolkit

Languages
Python·Swift·Kotlin·TypeScript·Go·PHP·C#·Bash·PowerShell·SQL
AI & Agents
Claude Agent SDK·Anthropic API (caching, tool use, vision)·MCP·RAG·Haiku / Sonnet / Opus routing·Bedrock
AWS
Lambda·API Gateway·DynamoDB·S3·EventBridge·SES·Pinpoint·Amazon Connect·Step Functions·Route 53·ACM
Mobile
SwiftUI·Jetpack Compose·CoreLocation·APNs / FCM
Web & backend
React·FastAPI·Bref PHP on Lambda·nginx
Security
M365 Defender·SentinelOne·Conditional Access·GDAP·pfSense·WireGuard·Azure Trusted Signing
Ops & DevOps
GitHub Actions·Docker·systemd·Linux server administration·ConnectWise Manage API·NinjaOne v2
V.Interests
Shipping end-to-end products soloNative mobile developmentServerless architectureAgentic AI systemsEndpoint & identity security