# LEWIS DIAMOND

B.Eng, Computer Engineering  
󰇮  <jobs@lewisdiamond.com> |   +1 530 451 6747 |   <https://github.com/lewisdiamond>

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## PROFESSIONAL SUMMARY

Seasoned software engineer with over a decade of experience building scalable
distributed systems, leading teams and delivering innovative solutions.
Expertise in cloud-native and hybrid development, high-performance systems and
machine learning infrastructure. Proven track record of mentoring, technical
leadership and open-source contributions.

## PROFESSIONAL EXPERIENCE

### Amazon.com / AWS, Software Engineer, 2020-present

Technologies used: Kubernetes, TypeScript, Go, Java, DynamoDB, SQS

AWS - EKS:

- Developed and operated the service responsible for OS updates of over two
  million hosts
- Led major re-architecture of globally distributed applications
- Improved CVE patching times from months down to 14 days (7 days for critical)
- Restructured build infrastructure to improve stability and deployment speed

AWS - EKS-anywhere:

- Created a Kubernetes manifest cryptographic signature verification system
- Designed and developed an add-ons system for EKS-A with full lifecycle
  management
- Developed Kubernetes operators
- Contributed to open-source software

Amazon.com:

- Developed software to optimize cross-border product availability
- Addressed critical performance bottlenecks
- Promoted modern development best practices

### Jogogo, 2017-2020

(Startup with ~30 employees and 5M in funding)  
**Chief Technology Officer**, 2019-2020  
**Lead Architect**, 2017-2019  
Technologies: Node, Rust, Cassandra, Kafka, MQTT, Kubernetes

- Led the company's software development team (~20 devs/managers) to build its
  core technology
- Mentored developers and recruited new talent
- Designed a highly scalable distributed indoor location analytics system
  handling >100,000 msg/s
- Developed core components for near-real-time analytics
- Led the development of a camera-based location analytics solution as a
  response to COVID-19 lockdown
- Built ML/AI development infrastructure on Kubernetes
- Oversaw the development of ML classifiers used for accurate triangulation
- Integrated trained models into the core analytics processing engine
- Built a flexible data processing pipeline using Rust and Node
- Developed an embedded WiFi/BLE sniffer based on Arch Linux
- Led the development of a high-throughput WiFi and BLE data aggregation
  system (Rust)

### Chopchop.io, Founder, 2014-2017

Technologies: Node, Python, React, ArangoDB

- Designed and developed a React.js restaurant recommendation web application
- Created a graph-based recommendation engine using ArangoDB and JavaScript
- Wrote REST services in Python and JavaScript
- Deployed services to production on AWS using Linux Containers

### Diamond Consulting, Founder, 2012-present

Expedia, 2013-2014:  
Technologies: Java, Cassandra

- Contributed to the design and development of Expedia's new geographic
  information system based on Cassandra
- Created REST APIs, designed and implemented big data schemas and
  multi-threaded applications
- Reviewed code and promoted development best-practices
- Led the migration from Perforce to Git

Morgan Stanley, 2012-2013:

- Developed a new generation post-trade processing software
- Led the development of Interest Rate Swaps execution report processing
- Improved architecture through several major core refactorings

### Morgan Stanley, Software Developer, 2010-2011

Technologies: Java, C++

- Managed a small team during a 4-week sprint project.
- Implemented a replacement for internal directory search which improving lookup
  times by >10x
- Owned, managed, and developed an application used to automate new account
  approval and regulations enforcement
- Developed a testing framework for data-centric unit tests
- Performed technical interviews from new grads to senior developers

### Early career

Genetec, Embedded & Full-stack Software Developer, 2008-2009  
Verint, Embedded Software Developer, 2007-2008  
Technologies: C++, C#, JS, SQL, Linux, TCL/TK

## EXPERTISE

**Languages**: TypeScript, Rust, Go, JavaScript, Java, Python, C++  
**Ops**: Linux, Kubernetes, Kafka, MQTT, Prometheus, Grafana  
**Databases**: Cassandra, PostgreSQL/MySQL/SQLite, ScyllaDB, ArangoDB, RocksDB  
**ML/AI**: Pandas, NumPY, scikit-learn, Jupyter/Zeppelin, AutoGluon

## OPENSOURCE

**EKS/EKS-Anywhere**: under <https://github.com/aws>  
**stromjs**: A dependency-free stream utility library. Lodash for streams
<https://github.com/lewisdiamond/stromjs>  
**rms**: WIP - A fast email indexer with a command-line interface, written in
Rust <https://github.com/lewisdiamond/rms>

## EDUCATION

Université de Sherbrooke, Sherbrooke  
Bachelor's degree in Computer Engineering

St-Lawrence College, Quebec  
Diploma of College studies in pure and applied science