Hamilton Greene Email & Phone Number

New York, Ny, Us

San Francisco, California, Us

Risk Engineering* Fixed critical onboarding bugs leading to activation failures for 2% of customers* Built automated systems for customer onboarding to flagship US Payroll product, reducing operations load by 30%* Maintained Risk policy engine for legacy flagship product US Payroll* Built Risk policy engine for Bill Pay* Built Risk policy engine for Global Payroll* Built infra to facilitate multi region data sharding lookups for staff users and migrated 150+ endpoints

All Projects: https://hamy.xyz/projects* YouTube - https://www.youtube.com/hamylabs* CloudSeed - F# project boilerplate - https://cloudseed.xyz/Stats:* Reach: 75k / year (2022)

Media Logging* Built and maintained robust, scalable media logging + metrics infrastructure for Instagram (5M+ QPS)* Led workstreams' (3-5 teams, 8-12 engineers) strategy and execution to hit org objectives* Improving Service Reliability (Monitoring, Traceability, and Recovery) -> increased from 92.4% -> 97%* Improved oncall QoL, efficiency, and time-to-mitgate by 75% via re-orgs and CI process* Increased scalability of Video Logging infrastructure by 36% by optimizing bottleneck data operations* Created and operationalized SLOs used as success measure for the team and its services* Increased efficiency of systems and infrastructure resulting in cost savings of $4M / year* Improved e2e testing speed by 10x and enabled pre-prod signal for logging<>metrics by building framework integrations for testing infra* Reduced prevalence of fraudulent data by 23% via improved monitoring + enforcement at scale* Led response for 50+ incidents (investigation, mitigation, prevention, and retros)Video Logging and Delivery* Improved video delivery data efficiency by 13% for bandwidth-bound networks* Increased efficiency of infrastructure, resulting in savings of $1.377 M / year* Improved regression response and mitigation time by 20% through improved monitoring and tooling* Designed, implemented, and patented data processing paradigm saving upwards of 30% of resource cost* Oversaw zero-downtime architecture migration for critical metric pipelines

Menlo Park, Ca, Us

Arlington, Va, Us

DISCo (Data Import, Setup, and Configuration operations) * Led engineering vision, roadmap, support, and feature development for service used to import and maintain ~85% of warehoused client data * Led Customer Research to discover, plan for, and solve key pain points of consuming teams* Helped architect and build a new service with high data load, flexibility, and security constraints (SQL Server, C#, React, Redux, Typescript)* Led office-wide engineering events to increase knowledge sharing across teams and orgs* Enabled platform load testing via creation of synthetic load engine simulating prod activityArchitecture (core services)* Worked on team building and maintaining core platform services like authentication, configuration + feature flags, logging, exception propagation, job queue, request tracing etc. (C#, SQL Server, Javascript)* Increased performance of platform's task queue by 90% and scalability by ~10x by optimizing intermediate query calculations via clustered index and batching* Implemented core APIs using .NET MVC to allow safe access/modification to core user data (SQL Server, Entity Framework)* Built single sign on integration with a third party platform leveraging JSON Web Tokens * Built self-service password reset flow (I forgot my password) using Okta APIs with minimal PII sharing

Armonk, New York, Ny, Us

-Worked on multidisciplinary team tackling enterprise business problems through research, design, and iterative prototyping-Designed and built prototype system frontend and backend-Created naive recommendation engine with basic IBM GraphDB traversals-Tech: CSS, Express, Flask, HTML, IBM Bluemix, IBM Cloud Foundry, IBM GraphDB, IBM Watson APIs, NodeJS, Python, React, Webpack

Atlanta, Us

-Built features for internal web apps, system dashboards, and web video player-Tech: AngularJS, CSS, Express, HTML, JavaScript, MongoDB, Less, NodeJS

Norwalk, Connecticut, Us

-Designed and built front end for charting library test harness, targeting mobile devices-Tech: AngularJS, Bootstrap, CSS, HTML, JavaScript

Atlanta, Georgia, Us

-Designed and built autonomous robotic systems to navigate dynamic retail environments-Tech: Arduino, C, Python

Atlanta, Georgia, Us

-Built system to monitor health of inventory replenishment system used in all stores-Developed Chrome extension to facilitate display of monitoring dashboard-Tech: Java, JavaScript, Splunk