us mobile
Multi-network
One line, all three major US networks. My pod builds the infrastructure behind Teleport and shared roaming — switching carriers as easily as switching Wi-Fi.
product manager · builder · new york
A life designed to feel alive — not just accomplished.
I'm Kelvin. Principal PM at US Mobile by day. The rest of the time: building small AI systems that run my life, chasing shuttlecocks, and answering to a miniature poodle.
about
More than the day job.
By day I'm a Principal PM at US Mobile, building the unglamorous plumbing behind "it just works" — multi-network infrastructure, international connectivity, and the activation systems that make a new phone feel instant.
I've sat on the other side of the table too: I founded RizzPolicy, a licensed insurance agency, to learn first-hand what owning a business takes. And when a process annoys me, I build the tool — a habit that has shipped internal apps at work and the personal OS that actually runs my life.
Off the clock: weekend badminton and pickleball, more gatherings than my calendar approves of, and answering to Yumi, a miniature poodle with strong opinions.
The throughline: design the system, then actually live in it.
selected work
Things I've shipped.
The day-job flagships and the after-hours builds.
us mobile
Starlink One
Cellular on every major network plus Starlink home internet, bundled into one plan — coverage from the ground and from space.
us mobile
eSIM instant activation
From "wait for a SIM kit" to connected in two minutes — instant activation grew from 8% to half of a million-plus activations.
founder
RizzPolicy
AI-powered insurance comparison and policy review. Founded it, got licensed, shipped it — the whole arc of owning a product.
after hours
Coffee App
The office café ordering app, built on the side — 3,500+ orders and counting from sixty daily regulars.
after hours
Reimbursify
Expense reimbursements without the spreadsheet ritual. Built in a sprint, adopted across the office in its first week.
four ways I spend myself
Build · Move · Yumi · Host
4 boarding passes
this year — amsterdam · barcelona · hawaii · coachella
128 bpm
default operating tempo — EDM, took the lessons
1 organ
under factory spec (gallbladder) — zero slowdown
soundEDM first, everything else after — Coachella attended, lessons taken seriously
speedF1 race weekends watched religiously · a long-standing love of driving
seasonsskiing in winter · cycling the rest — currently benched by a cracked elbow, surgically rebuilt in May, back on the road by winter
resilienceone gallbladder lighter and bounced back fast — same plan for the elbow, but stronger than before
build
Small tools, shipped fast
A personal OS of agents that write my briefs, watch my goals, and keep life legible. Supervisor pictured.
move
Badminton & pickleball
Weekend courts, the occasional tournament, strength classes around the city. Currently rebuilding — the goal is stronger than before, not back to baseline.
yumi
Chief Wellness Officer
Miniature poodle with strong opinions. Supervises build sessions from the desk, commutes by sling, photographed more than I am.
gather
Out most weeks
Demo nights, PM meetups, dinners that run long — fifteen gatherings since May, and a standing goal of pulling one together myself each month.
the system
I run my life on software I wrote.
Every morning at 7:00, an agent has already read my data, written my brief, updated my dashboards, and nagged me about the task board. The de-identified version is public — clone it and make it yours.
my data→health · money · people · notes→agent fleet→crons + skills→outputs→morning brief · dashboards · task board
starter
kit →
kit →
featured — free, no signup, no tracking
Personal OS starter kit
A file-based knowledgebase, agent task prompts, and daily report generators. A walkthrough plus a downloadable kit.
field notes
Out in the world.
← scroll →
now
Current status.
- runningDaily life on the personal OS — automated briefs, reports, and a task board the agents keep honest
- rebuildingPost cycling-crash elbow surgery (May) — strength and sport, with a target of better than before by 2027
- exploringAI tools and productivity hacks
- buildingThis site, and sharing the personal OS publicly — say hi if you're building too