A senior product studio for founders and platform teams. We design, build and scale web apps, mobile and AI systems — shipped on a schedule you can plan around.
Design and engineering sit together from day one — so strategy, interface and
infrastructure move as a single system instead of a relay race between vendors.
svc/01
Product design
Strategy → UI
Research, product strategy, and interface design in one loop. We prototype fast, validate with real users, and hand engineering a system — not a stack of screens.
+ Discovery & product strategy
+ Design systems
+ Interactive prototypes
svc/02
Web apps
React · Next.js · Go
Fast, accessible web products built on TypeScript, React and Next.js with Go or Node services behind them. Type-safe end to end, tested, and ready to scale.
+ SPA & SSR products
+ Design-to-code fidelity
+ Edge & serverless
svc/03
Mobile
iOS · Android · RN
Native-feeling apps with React Native and Swift/Kotlin where it counts — offline-first, buttery animations, and a release pipeline your team can own.
+ Cross-platform & native
+ Offline-first sync
+ App Store delivery
svc/04
AI / ML
LLMs · RAG · eval
Applied AI that earns its keep — retrieval pipelines, evals, agents and inference infra wired into your product, with guardrails and cost controls built in.
+ RAG & agents
+ Evals & guardrails
+ Model & inference infra
svc/05
Cloud / DevOps
AWS · K8s · IaC
Infrastructure as code, CI/CD, and observability from day one. We make deploys boring and rollbacks instant, so shipping never becomes the scary part.
+ Terraform & Kubernetes
+ CI/CD pipelines
+ Observability & SRE
svc/06 · discovery
Not sure where to start?
Most engagements begin with a short paid discovery sprint — a week to map the
problem, de-risk the build, and leave you with a plan you own.
§03 ▸ work/exhibits
Shipped, measured, still running.
Products we designed and built end to end — each shown as the system we drew
for it, with the numbers it runs on.
04 exhibits
Logistics · Web + Mobilearch/northwind
Northwind Logistics
A dispatch platform that runs the fleet
A regional carrier ran dispatch on spreadsheets and phone calls. We rebuilt it as a real-time platform with live tracking and automated routing.
Next.jsGoPostgreSQLAWS
faster dispatch
38%
faster dispatch
loads / driver
2.4×
loads / driver
to launch
11 wks
to launch
Healthcare · Mobilearch/lumen-health
Lumen Health
A patient companion app people actually open
A digital-health startup needed a HIPAA-ready companion app. We designed and shipped an offline-first React Native product in one quarter.
React NativeTypeScriptFastAPIGCP
App Store rating
4.8★
App Store rating
D30 retention
61%
D30 retention
compliant
HIPAA
compliant
B2B SaaS · AI/MLarch/quanta
Quanta AI
A RAG copilot embedded in the workflow
Quanta had docs sprawl across ten tools. We built a retrieval copilot with evals and guardrails that answers in-context, with citations teams trust.
PythonLangGraphpgvectorKubernetes
answer accuracy
92%
answer accuracy
support tickets
−47%
support tickets
p95 latency
<800ms
p95 latency
Fintech · Platformarch/meridian
Meridian Pay
Payments infra that scaled to launch day
A fintech needed ledgered payments hardened for a national launch. We rearchitected the core services and the deploy pipeline behind them.
GoKafkaTerraformAWS
uptime at launch
99.99%
uptime at launch
throughput
5×
throughput
launch-day incidents
0
launch-day incidents
§04 ▸ process/pipeline
discover → design → build → ship → scale
One loop, run by senior people. Every stage ends in something real — a decision,
a prototype, a demo, a deploy — so momentum never stalls in a doc.
01stage/01
Discover
We pressure-test the problem, the users and the constraints — then agree on what success looks like and what we are not building yet.
02stage/02
Design
Flows, interface and a design system, validated with clickable prototypes so decisions get made on real screens, not slide decks.
03stage/03
Build
Small, senior teams shipping in weekly increments. Type-safe, tested, reviewed — with a demo you can click at the end of every sprint.
04stage/04
Ship
Deploys are automated and boring. We roll out behind flags, watch the dashboards, and keep rollbacks one click away.
05stage/05
Scale
We stay for the part that matters — performance, reliability and iteration — and hand your team a codebase they are glad to own.
§05 ▸ stack/graph
The system we run on.
We pick boring, proven tools and use them extremely well. This is the dependency
graph behind the studio — hover a node to trace how it connects to the core.
cobalt shipped in eleven weeks what our last vendor could not in a year. They think like owners and write code we are proud to maintain.
// Dana WhitfieldVP Engineering, Northwind Logistics
commit2d5f408
The design and engineering are genuinely one team. Every sprint ended in something we could click, test and put in front of real patients.
// Marcus LeeCPO, Lumen Health
commit7201fd7
They made our AI copilot trustworthy — evals, citations, cost controls. Support volume dropped by nearly half in the first month.
// Priya NadellaCo-founder, Quanta AI
§08 ▸ studio/principles
Small, senior, and hard to distract.
cobalt is a tight team of designers and engineers who have shipped in startups
and at scale. No account managers between you and the people building — you talk
to the team doing the work, every week.
We run in focused four-day design sprints, review every line, and open-source what
we can. Remote-first since 2016, with a home base in Austin, TX · Remote-first.