Stack

The stack, and where each piece shipped.

Most stack pages are a wall of logos. This one is sorted by how often I reach for a tool (Daily, Shipped, Familiar), and 36 of them link straight to the case study, write-up, or project where they earned their place. Filter it, search it, follow the proof. If something isn’t here, assume I haven’t used it in anger. Not pictured: the musicals playlist, which is load-bearing.

Linked to proof

36/ 63

Numbers over adjectives: each one links out to the shipped work.

How often I reach for them

63 total

Daily: 29
Shipped: 19
Familiar: 15

Showing 63 of 63

Languages

TypeScriptDaily
This site + FieldDay, a 13-domain Nx monorepo
C# / .NET· Day jobDaily
Marketing-automation microservices at CoStar
PythonDaily
Agent platform, ML research, AI tooling
SQLDaily
SQL Server + Snowflake at CoStar; Postgres in FieldDay
JavaFamiliar
C / C++Familiar
GoFamiliar

Backend & data

Node.js / Next.jsDaily
This site (App Router, RSC) + FieldDay
PostgreSQLDaily
Chose it over TigerBeetle for FieldDay's ledger
Kafka / SQSDaily
Field-level sync subscriptions, projected 80–90% fewer downstream writes (résumé)
SnowflakeDaily
Marketing data warehouse at CoStar
OpenSearch / ElasticsearchDaily
26 production indices behind Bedrock RAG agents (résumé)
DynamoDBShipped
Conversation state for the RAG agents (résumé)
Redis / UpstashDaily
Caching + the /ask rate-limit & spend cap
tRPCDaily
FieldDay API fronting 13 domains
Drizzle ORMDaily
FieldDay: 604 tables, 429 forward-only migrations
ExpressDaily
FieldDay API (Express + tRPC)
Flask / FastAPIFamiliar
GraphQLShipped
MongoDBFamiliar

Infra & DevOps

AWS (Lambda, ECS, S3, SQS, IAM)Daily
The $1B Homes.com launch pipeline
GitHub ActionsDaily
CI here and in FieldDay; CI/CD for 30+ teams at nCino
DockerDaily
VercelDaily
Hosts this site
DatadogShipped
Custom Lambda metrics cut ~$100K/yr at nCino
TerraformShipped
Removed unused AWS services at CoStar (résumé)
HelmShipped
Google Cloud· 10+ class projects deployed at UVAShipped
Azure DevOps· Pipelines at CoStar (résumé)Shipped
KubernetesFamiliar

AI / ML

Anthropic ClaudeDaily
Powers /ask on this site (Haiku 4.5)
Voyage AI embeddings + rerankingShipped
RAG retrieval on /ask — voyage-3.5, reranked with a refusal gate
Eval harnesses (golden sets)· Eval-first by defaultDaily
recall@5 ≥ 0.9 CI gate on /ask
LangGraphShipped
Re-architected CoStar's agent platform (résumé)
AWS BedrockShipped
Retrieval-grounded agents at CoStar (résumé)
pgvectorDaily
FieldDay hybrid search — halfvec(1536) HNSW + RRF
PyTorchShipped
NIH patient-outcome models, UVA research lab
Hugging Face TransformersFamiliar
TensorFlow / KerasFamiliar
scikit-learnFamiliar
LangChain / LlamaIndex· Prefer rolling my own at this scaleFamiliar

Frontend

React 19 + App RouterDaily
This site + the FieldDay web app
Tailwind CSSDaily
The design system behind this site
View Transitions APIShipped
The work-card → case-study title morph
Three.js / React Three Fiber / GLSLShipped
The real-time sky and ocean behind this site (custom GLSL)
TanStack QueryDaily
Data layer in the FieldDay web app
shadcn/uiShipped
FieldDay component primitives
Micro-frontendsShipped
CoStar marketing UIs (résumé)
D3Shipped
StorybookDaily
FieldDay component library
GSAP + LenisDaily
Scroll, preloader and heading motion on this site
Framer Motion· Used in FieldDay's UI packageFamiliar

Blockchain

Solana· Self-taughtFamiliar
Written up: the account model as a database schema
Ethereum / EVM· Self-taughtFamiliar
Written up: nonces and replay protection vs. idempotency keys
Finality & on-chain reconciliationFamiliar
FieldDay's reconciler, mapped onto commitment levels
Wallet security & simulationFamiliar
Written up: what a wallet should show before you sign

How I work

Eval-first developmentDaily
Build the golden set before I trust the system
Design docs / RFCs· Most of my projects ship with oneDaily
Code review (giver & receiver)Daily
TDD where it pays backDaily
Incident response / on-callShipped
PostmortemsShipped
Mentoring· TA'd 100+ students at UVAShipped