John Mcmahon
Founder And CEO at Starter Inc.
Corte Madera, California, United States
Summary
👤
Senior🎓
Top SchoolJohn Mcmahon is a founder and CEO with 11+ years of hands‑on software engineering and AI platform architecture experience, currently building Valkyr Labs to deliver production-grade agent workflows, code generation, and developer tooling. He blends staff/principal-level systems design with operator sensibilities—emphasizing orchestration, context management, guardrails, evaluation loops, and human-in-the-loop automation to make fast-moving AI systems reliable and cost-effective. Prior roles include shipping rapid, scalable products at Dolby (browser-based Atmos mixer, zero-downtime billing migrations) and founding multiple startups that produced commercial SDKs, SaaS code generators, and open-source spreadsheet libraries. He has repeatedly driven lean, highly automated ventures where technical depth and execution discipline trump organizational overhead. Based in Corte Madera, he pairs broad full‑stack fluency (cloud, streaming ETL, mobile, backend services) with a founder’s knack for turning prototypes into revenue-generating products. An interesting through-line: he often delivers complex first versions in weeks, not months, by combining code generation, CI/CD, and pragmatic validation strategies.
11 years of coding experience
29 years of employment as a software developer
BA Cum Laude, BA Cum Laude at San Francisco State University
English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (65)
material-ui10
code-generation10
specification10
openapi10
twitter10
feed10
java10
scraper10
react10
react-components9
javascript9
monitoring9
rss9
webscraping9
client-library9
Programming languages (4)
Github contributions (5)
StarterInc/Ignite
May 2015 - May 2018
Contributions:1 PR, 7 pushes, 1 branch in 3 years
react-nativemobile-applicationapplication-platformignite
spaceghost69/TEST_THORAPI
Jan 2025 - Feb 2025
TEST_THORAPI
Contributions:16 PRs, 1550 pushes, 13 branches in 1 month
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