Staff IC at Cash App Lending, owning end-to-end delivery of critical financial infrastructure managing $30B+ in investor capital and ~$450M+ in annual fee revenue.

• Tycoon (Capital Markets): Architected Block's first in-house capital

markets platform replacing Moody's across US, GB, and NZ — $30B+

investor capital; 100M+ row pledge reports in <1 min; <0.25% data

mismatch at cutover; automated SFTP delivery eliminating 2+ hrs/day

of manual Treasury Ops work.

• AU Funding Launch: Led Australia funding migration (dual-lender NAB+Citi,

25M+ order backfill); launched Nov 2025 with zero discrepancies —

~$26M/day (~$9.7B annualized). Presented at Commerce All Hands.

• Scaling & Reliability: Aurora → DynamoDB migration supporting 6M tx/day;

novel key design cut storage ~50%; improved pledge report P99 67.5%

(4s→1.3s); handled $415M+ Black Friday pledge while cutting CPU 55%→31%;

drove off-balanced orders from thousands → <10.

• Messari (Double-Entry Accounting): DRI for APCAC

integration ($185.4M projected 2026 volume); full Finance reconciliation

delivered pre-GA.

• AI Enablement: Standardized AI workflows across Lending; reduced

on-call incident investigation from ~1 day → ~10 min

Lead SWE on the Alexa Timers & Alarms platform — 20M+ daily customers,

80M+ events/day. Designed and delivered major cross-org initiatives

spanning NLU, device APKs, APL rendering, and distributed scheduling.

• APL Migration: Led Alarms migration from Amazon-only APK to APL, enabling

third-party devices (Samsung, Lenovo, Facebook Portal); reduced UI release

cycle 2 months → 2 days; 4M pages/day. Contributed scroll picker component

to the APL core SDK — adopted by 4 Amazon teams. Zero Sev-2 on a VP-level

deadline.

• Personal Data Search: Built real-time PubSub ingestion library adopted by

4 Alexa domain teams; indexed 2.7B+ calendar entries (6.18TB); enabled

Alexa personal queries for the first time. Jeff Bezos attended the demo.

• Cross-Device Alarms: Identified customer pain point from friction data, designed a solution

spanning 6 Amazon platform services, and led to delivery in

6 months — 4M+ daily customers, <20ms latency impact, zero Sev-2 at launch.

• Bar Raiser (Operational Excellence) — established coding guidelines and

design templates adopted org-wide.

12+ years of progressive technical leadership at Monster's Military

Division, growing from Senior SWE to Staff/TLM serving ~50M military

members across ~800 US bases. Owned architecture, roadmap, team

management (5–8 engineers), and full engineering process.

• Base Guide (2011–2015): Architected an 8-microservice military community

platform pre-mainstream microservices era — community forums, search, news,

social features, and communications. Redis caching delivered 5–10x page

load improvements; Redis-backed People You May Know API met <200ms SLA for

50M members.

• DevOps Transformation: Drove deployment from weeks → minutes — SVN→GitHub,

Ant→Gradle, CircleCI, Artifactory, Chef, Docker/Swarm on AWS. First

fully automated, zero-ticket deployments for the team.

• Email Platform: Designed centralized JMS email pipeline (JBoss HornetQ)

used by 25+ site verticals — reduced email-triggered request latency

2s → 100ms; handled millions of transactional emails/month.

• Fatwire Crisis Recovery: Sole Fatwire expert resigned with no docs

mid-project. Self-taught the system from source, reverse-engineered all

customizations, delivered blocked projects on time — estimated $200K–$400K+

in contractor costs avoided.

• Engineering Standards: Established design doc templates, API-contract-first

development, PR code review culture, and operational runbooks adopted

across the division.