AFFAN YASIRTorontoSeeking Summer 2027 internshipsResumeEmailGitHub

From a moving garbage collector to a director's morning brief — I build systems end to end.

CS student at Western · backend, runtimes, and agent infrastructure.

NOWAt Bombardier this summer I built Flightline Brief — the daily performance workbook, turned into a five-minute morning brief for managers and directors on a time crunch.

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Five flagships

evidence attached
01

Language Runtime

research

A statically typed language on verified bytecode with a precise moving, two-generation GC.

Hard part: Objects move mid-execution and every reference survives; nothing runs unproven.

EVIDENCE · deterministic stress scheduling · 46-iteration correctness log

STACK · C++ · bytecode VM · precise moving GC

the language
02

AgentOps

active build · live demo

A six-package agent-infrastructure lab — policy, memory, tracing, tools — behind one governed console.

Hard part: The console never invents an outcome. Every status on screen comes from a value in the runtime's report.

EVIDENCE · hosted Gateway demo, deterministic, no LLM in the loop · shadow-mode baseline

STACK · Python · FastAPI · React · six packages

gateway trace
03

DPOR Checker

active build

A deterministic model checker that explores every meaningfully different interleaving of a concurrent program.

Hard part: Happens-before and independence analysis across SC, TSO, and PSO memory models — pruning equivalent schedules without missing a race, and shipping a minimal reproducing schedule with every reported bug.

EVIDENCE · minimal repro schedules · lasso witnesses · deterministic replay

STACK · C++20 · DPOR · three memory models

exploration

Each of these has a world. You've been reading the still versions.

04

Duskline

private alpha

A map-first evening atlas for Toronto that refuses to claim what it can't verify.

Hard part: Provider evidence drives every pin — no hours, Wi-Fi, or quiet are ever asserted without proof.

EVIDENCE · live demo instance · recorded walkthrough · macOS app in alpha

STACK · TypeScript · React · SwiftUI · MCP

app identity
05

Flightline Brief

active build · in internal use

An upload-driven morning brief over the daily performance report, with provenance on every number.

Hard part: Read-only validation, immutable snapshots, atomic publish — a figure can always walk back to its cell.

EVIDENCE · public demo on declared sample data · latency + accessibility + renderer gates green

STACK · Next.js · FastAPI · Postgres

the app's face

The rushed version ends here. If you're still reading, you weren't rushed.

TAKE THE ODYSSEY ⟶