Qasten
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Senior backend, cloud, and AI engineering.

I'm Farouk Faiz, a software engineer formerly at AWS and Uber. I now work independently under the name Qasten, helping teams speed up backends, untangle cloud infrastructure, improve the tools their engineers use, and build AI agents that work in production.

About me

Farouk Faiz

Farouk Faiz

Senior Software Engineer · ex-AWS · ex-Uber · Backend & cloud

Resume

I spent more than three years at Amazon Web Services (AWS), building tools for other engineers. I cut graph loading times by 25x and pipeline execution times by 60x. I also built AI agents that helped move large mainframe codebases from COBOL to Java by automating code changes and tests.

Before AWS, I worked on reliability systems at Uber. I led failover monitoring and reduced failover time from 15 minutes to 2 minutes.

I like problems that are hard to pin down: slow systems, infrastructure that hasn't kept up with growth, or codebases with years of technical debt. I get up to speed quickly, work directly with the people involved, and see the work through to production.

  • Amazon (AWS) - Software Engineer - 2022-2026
  • Uber - Software Engineer - 2021
  • Rank 2 - Raise Your Hack 2025

How I can help

  • Backend Engineering & Performance

    I build distributed services and high-throughput APIs, and I track down why slow systems are slow. I've worked on systems processing millions of nodes and on reliability infrastructure at Uber's scale.

  • AWS & Cloud Infrastructure

    I design and review AWS setups, write infrastructure as code, and put security, logs, metrics, and alerts in place. I can handle the infrastructure from the first design to production.

  • AI Agents

    I build AI agents and multi-agent systems: how they split up work, use tools, and hand decisions back to people when needed. At AWS, I shipped agents used in large mainframe migrations.

  • Developer Tooling & Platform

    I build internal tools, build systems, and CI/CD pipelines that make engineers' work easier. At AWS, a CI/CD system I built was used more than 10,000 times by over 50 developers.

  • From Infrastructure to UI

    When it makes sense, I can take a feature all the way from infrastructure to UI without passing it between several people.

Let's talk about your project

I'm available for remote contracts. Email me or book a 15-minute call.

Book a 15-minute call Email LinkedIn