Software Engineer · CS & Statistics @ Harvard ('27)
I build backend systems, ML pipelines, and AI infrastructure — from a C++ database engine written from scratch to AWS-based cybersecurity platforms processing 10,000+ alerts a day. I care about performance, reliability, and shipping things people actually use.
📍 Cambridge, MA 📫 smarial@college.harvard.edu
Languages
Backend & Data
ML & Infra
| Project | Description | Tech |
|---|---|---|
| High-Performance Database Engine | Database engine built from scratch with buffer pool management, B+-tree indexing, write-ahead ACID logging, and concurrent transactions — 4x query speedup, 35% less memory vs. baseline. | C++ |
| Collaborative Code Editor | Real-time editor for 30+ concurrent users with sub-150ms sync via a custom Operational Transformation engine; horizontally-scalable WebSockets with Redis pub/sub. Adopted by 25 Harvard CS students. | Node.js · React · WebSockets · Redis · MongoDB |
| Forward Repair for RAG Pipelines | DSPy-based RAG repair framework that corrupts and repairs specific LM pipeline stages, comparing query-stage vs. answer-stage failures with HotpotQA + BM25 retrieval. | Python · DSPy |
💡 Pin these repos on your profile (Profile → Customize your pins) so they render as cards too.
- Machine Learning Fellow — Harvard Undergraduate Machine Intelligence Community (Feb 2026 – Present)
- Applied AI Fellow — Harvard Grid (Sep 2025 – Dec 2025)
- Software Engineer Intern — MoMo from MTN (May 2025 – Aug 2025)
- Engineering & Research Intern — diiVe, Cape Town (Jun 2024 – Aug 2024)
- Program Coordinator & Engineer — Young Leaders Academy of South Sudan (Sep 2023 – Present)