Caleb Walch
Distinguished Engineer at Target
San Antonio, Texas, United States
Summary
👤
Senior🎓
Top SchoolCaleb Walch is a Distinguished Engineer and Security Architect based in San Antonio with two decades of experience building and hardening enterprise and defense-grade software systems. Currently a senior engineering leader at Target, he has progressed from hands-on full‑stack development to principal and distinguished roles, blending deep expertise in systems, databases, and security architecture. His background spans DoD and aerospace contracts where he led sustainment, migration, and monitoring efforts using technologies from Go and Ruby on Rails to PostgreSQL, Elasticsearch, and container platforms. Caleb is particularly experienced at modernizing legacy stacks—migrating frameworks, refactoring for performance, and creating mock services and tooling to emulate production—and has a history as a network and systems operator dating back to the USAF. He pairs operational rigor with pragmatic engineering leadership, consistently delivering auditable, secure solutions for large-scale, mission‑critical environments.
10 years of coding experience
8 years of employment as a software developer
Bachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at Park University
Github Skills (99)
dm10
message-queue10
security10
cfc10
stream-processing10
yara10
cqrs10
merry10
rabbitmq10
stream10
stream-processor10
golang10
kafka10
event-sourcing10
message-bus10
Programming languages (5)
Github contributions (5)
target/mmk-js-scope
Nov 2021 - Sep 2022
Puppeteer worker for Merry Maker
Contributions:1 release, 4 reviews, 27 commits in 10 months
makerpuppeteerworkernodejsmerry
target/mmk-ui-api
Dec 2021 - Jan 2023
UI, API, and Scanner (Rules Engine) services for Merry Maker
Contributions:14 reviews, 74 commits, 102 PRs in 1 year 1 month
makerapiscannerrulesrules-engine
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