CS @ UChicago, Class of 2027
I'm a computer science student at the University of Chicago, graduating in June 2027. I work on backend systems, cloud infrastructure, and developer tools. Previously, I interned twice at AWS.
2026
Built a CloudFormation drift investigation service in Python and TypeScript, using CloudTrail, Step Functions, and Bedrock to trace infrastructure changes. In evaluation, 93% of investigations finished in under 90 seconds, with a 97.5% overall agent evaluation score.
2025
Expanded Amplify AI Kit's cross-region inference support across 21 AWS regions, from 54 to 138 model-region combinations. Built a Lambda-backed CDK construct for deployment-time model configuration.
2025–now
Lead five developers building internal tools and reviewing code. Developed shared authentication and scheduling APIs that save 10–12 hours of manual work each quarter.
2024
Reduced p95 API latency by 34% through query and MongoDB index optimizations. Built a self-service troubleshooting flow that contributed to a 56% reduction in support tickets over three months.
Open-source work from my 2025 AWS internship. Extended Bedrock model support across AWS regions and built deployment-time resolution for model and inference-profile configuration.
typescript · aws cdk · amazon bedrock
A full-fledged database management system built in Rust as part of UChicago's CMSC 23500.
rust · database systems
A final-exam finder for UChicago students. Search by course code, name, or instructor and add exam dates to your calendar.
next.js · typescript · prisma · postgresql
A regex engine and grep-like CLI written in Haskell. Uses recursive-descent parsing, Thompson's construction, and NFA simulation without recursive backtracking.
haskell · parsing · automata
A small shell in C supporting interactive and batch execution, command parsing, built-ins, and file-descriptor redirection using POSIX system calls.
c · posix · linux
Python, TypeScript, Rust, C, C#, Haskell, SQL, AWS, Docker, Linux, Node.js, PostgreSQL, MongoDB.
If you'd like to talk about software, systems, or an opportunity, feel free to reach out.
esslamhosam@gmail.com ↗