# Hamilton Greene

> Software Engineer @ Vanta | Ex: Instagram / Meta, Rippling

Location: New York, New York, United States
Profile: https://flows.cv/hamilton

Technomancer building Simple Scalable Systems. More: https://hamy.xyz/

## Work Experience
### Senior Software Engineer @ Vanta
Jan 2025 – Present

### Founder + Chief Technomancer @ HAMY LABS
Jan 2021 – Present
All Projects: https://hamy.xyz/projects

* YouTube - https://www.youtube.com/hamylabs
* CloudSeed - F# project boilerplate - https://cloudseed.xyz/
* CloudCompare - Compare Cloud Hosts - https://cloudcompare.xyz/
* One Million Checkboxes - Globally synced checkboxes with HTMX - https://onemillioncheckboxes.xyz/

Stats:
* Reach: ~350k / year (2024) - https://hamy.xyz/blog/2024-12_hamy-labs-2024-review#shares

### Senior Software Engineer @ Rippling
Jan 2023 – Jan 2025
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

### Senior Software Engineer @ Instagram
Jan 2019 – Jan 2022 | New York, United States
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

### Software Engineer @ Meta
Jan 2019 – Jan 2022

### Software Engineer @ Applied Predictive Technologies
Jan 2017 – Jan 2019
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 activity

Architecture (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

### Maelstrom Intern - Frontend Developer @ IBM
Jan 2016 – Jan 2016 | Austin, Texas
-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

### Technology Intern @ CNN
Jan 2016 – Jan 2016 | Atlanta, GA
-Built features for internal web apps, system dashboards, and web video player
-Tech: AngularJS, CSS, Express, HTML, JavaScript, MongoDB, Less, NodeJS

### Intern - Software Engineering @ FactSet
Jan 2015 – Jan 2015 | Norwalk, CT
-Designed and built front end for charting library test harness, targeting mobile devices
-Tech: AngularJS, Bootstrap, CSS, HTML, JavaScript

### Associate Developer @ The Home Depot
Jan 2014 – Jan 2014 | Orange Works
-Designed and built autonomous robotic systems to navigate dynamic retail environments
-Tech: Arduino, C, Python

### Supply Chain IT Intern @ The Home Depot
Jan 2014 – Jan 2014 | Atlanta, GA
-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


## Education
### Bachelor of Science (B.S.) in Computer Science
Georgia Institute of Technology
Jan 2012 – Jan 2016


## Contact & Social
- LinkedIn: https://linkedin.com/in/hamiltongreene
- Website: https://hamy.xyz

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Source: https://flows.cv/hamilton
JSON Resume: https://flows.cv/hamilton/resume.json
Last updated: 2026-03-22