About
Kavish Singh is a software engineer in Sacramento, California, and the founder of Nexus Vantage Group, a one-person software studio. He builds and operates production systems with AI coding agents: he writes the specs, reviews what the agents draft, tests it, ships it and keeps it running.
He came to software from the counter. He joined a UPS Store franchise in Sacramento in October 2022 as a sales associate and was promoted to Assistant General Manager and designer, in a store that handles 150 to 200 transactions a day; he served as the designated Western Union compliance officer until that service was retired in August 2026. He built and operates the store's website, lofa4507.com, his first production system, and its self-service kiosk.
At the studio he builds the tooling his own agent work runs on: Cokpit, a development environment for agent sessions with a hub that keeps them alive on a home server; Sayso, push-to-talk dictation for Windows; Routr, the engine that picks and enforces a model for each task; and the hub and server infrastructure under them, with security reviews and release gates as part of each build. He holds a California notary commission and a DOJ Live Scan certification, and he is open to software engineering and IT roles in California.
Background
The UPS Store (a franchise in Sacramento)
Oct 2022 to present
Sales Associate, promoted to Assistant General Manager and designer. Customer-facing shipping, printing, packaging and financial transactions in a store handling 150 to 200 transactions a day; designated Western Union compliance officer until the service was retired in August 2026; the store's print and design work.
Built and operates the store's website, lofa4507.com, and its self-service kiosk; both are written up under Work.
Nexus Vantage Group
Sep 2025 to present
Founder. A one-person software studio in Sacramento: client sites and systems, and the tooling its own AI-agent work runs on.
Cokpit, Sayso, Routr and the hub infrastructure, written up under Work.
AutoZone
Jun 2021 to Feb 2022
Sales Manager (part time). Retail sales, POS and cash reconciliation, inventory control.
Education
Attended California State University, Sacramento, 2020 to 2023, with coursework in business finance and computer science. Monterey Trail High School, Elk Grove, diploma 2020.
Licences and certifications
- California Notary Public, commissioned 2023, expires August 2027.
- California DOJ Certified Live Scan Fingerprint Rolling Operator.
- Western Union AML/KYC Compliance Officer certification.
Languages: English and Hindi, both native.