Oleksandr
Khomin

Software Engineer
at AWS

About

I am Oleksandr, a Software Engineer, Antler alumnus, and startup founder. I co-founded Coaty World and served as its CTO, leading the technical architecture and backend development. My experience includes engineering roles at Sigma Software, freelance work on Upwork, and backend development at Comcast. I am currently a Software Engineer at AWS. A fun fact about me is that I enjoy skydiving.

  • AWS
  • Comcast
  • Sigma Software
  • Coaty World
  • Upwork
  • Antler

Experience

01

Amazon Web Services (AWS)

Full-time · Seattle, Washington, United States · On-site

S3Backend systems behind Amazon S3

Develop and maintain backend systems that power S3's scalable storage service. My work focuses on improving performance, reliability, and cost-efficiency while building new features to meet customer needs. I also help monitor, troubleshoot, and optimize large-scale distributed systems to ensure S3's durability and availability.

AWS S3 Tables - Oleksandr Khomin's work on scalable storage systems

02

Comcast Technology Solutions

Full-time · Bellevue, Washington, United States · Remote

300 → 5 msEvent processing time, 10+ million events per hour

Optimized Databee's event processing pipeline, handling 10+ million events per hour, reducing processing time from 300 ms to 5 ms using Golang, Redis, and AWS. Designed and implemented scalable backend services, making key architectural decisions to enhance performance, reliability, and cost efficiency.

Collaborated with cross-functional teams, ensuring seamless integration of security and compliance data within Databee's security data fabric platform. Mentored an intern, providing guidance on backend development and system design, fostering team growth and knowledge sharing.

Databee security data fabric platform - Oleksandr Khomin's backend optimization work

03

Coaty World

Boulder, Colorado, United States

CTOCo-founder, team of 5

Designed the technical architecture and fully implemented the backend for the application. Utilized cutting-edge technologies including Flutter, Golang, Node.js, and GCP.

Implemented NEAR Protocol Blockchain integration in the application using the Rust programming language, enhancing its functionality and efficiency.

Successfully managed a team of 5 professionals, ensuring seamless collaboration and project execution. Demonstrated strong leadership and project management skills throughout the development process.

04

Sigma Software Group

Full-time · Lisbon, Portugal / Kyiv City, Ukraine

Worked in the AdTech domain, focusing on backend development and large scale distributed systems. Designed and maintained services built with Golang and deployed through Docker and Kubernetes across GCP and AWS environments. Developed data processing components using Postgres and MySQL, with system monitoring and metrics handled through Prometheus. Contributed to performance tuning, reliability improvements, and cost optimization for production workloads.

Sigma Software - AdTech backend development by Oleksandr Khomin

Apps

  • A1

    Oinker

    Finance · iPhone & iPad

    Link your bank and a sarcastic piggy bank stamps every purchase Roasted, Respect or Noted.

    App Store
  • A2

    Practice Online Presentations

    Education · iPhone, iPad & Mac

    Rehearse a talk in a simulated online meeting or boardroom. Camera and screen stay on your device.

    App Store
  • A3

    Battery Overcharge

    Game · iPhone & iPad

    A one-thumb game about charging a battery past 100% before the funny faces pop.

    App Store
  • A4

    Read to Unlock

    Productivity · iPhone & iPad

    An app blocker that makes distractions conditional: read a real page to earn screen time.

    App Store
  • A5

    Export reminders

    Utilities · iPhone, iPad & Mac

    Back up and share Apple Reminders as CSV, PDF, Excel or Word. Everything runs on your device.

    App Store
  • All appsOn the App Store