BSc. Computer Science · York University

Cloud-Native & Distributed SOA

Software Engineer @ Intact Financial Corp.

Shaf Muhammad

Full-Stack Software Engineer & Photographer

Designing resilient systems, modern interfaces, and capturing the physical world. Currently engineering cloud-native infrastructure at Intact Financial Corp.

hello@shafm.ca GitHub (shaf-m)

Explore Timeline Engineering Works CV

Professional Timeline

Software Engineer

Intact Financial Corp. — Toronto, ON

May 2025 – Present

Collaborated in a cross-functional Agile team to enhance an underwriter platform supporting billions in insured assets.

Designed and deployed loosely coupled RESTful APIs within a distributed Service-Oriented Architecture (SOA), utilizing Java Spring and Angular to improve system modularity and deployment speed.

Leveraged GitHub, Docker, and OpenShift for version control, containerization, and deployment in cloud-native environments.

Accelerated incident resolution across production and dev environments by integrating AI engineering agents (Devin, CoPilot) to automate root cause analysis, debugging, and unit test generation.

Analyzed systems and user feedback to implement improvements, enhance reliability, and elevate user experience for brokers.

Stack:Java SpringAngularDockerOpenShiftGitHubDevin AIGitHub CoPilotRESTful SOAAgile

Software Engineer

Ontario Government — Toronto, ON

May 2024 – Apr 2025 (12 mos)

Developed secure, Java-based applications used across ministries, strictly adhering to government security, accessibility, and governance standards.

Built dynamic, accessible UI components with Angular, ensuring strict compliance with WCAG 2.1 accessibility standards (WAVE, JAWS, NVDA).

Engineered backend RESTful APIs using Spring Boot and established automated CI/CD deployment pipelines via Azure DevOps.

Optimized SQL queries and designed relational database schemas, strictly adhering to government security and governance guidelines.

Collaborated in an Agile team and executed rigorous full-stack testing suites with Postman, Selenium, and JUnit to ensure production reliability.

Stack:AngularJava Spring BootSQLAzure DevOpsWCAG 2.1 AASeleniumPostmanJUnit

01 / 05 — Tap To Dine

Engineering Works

High-Throughput ASGI Event Loop & Distributed POS State Engine

Tap To Dine

Architecture BlueprintSocket.IO / FastAPI (ASGI) · Supabase PostgreSQL (RLS) · Firebase RS256 JWT

A real-time restaurant POS and ordering engine built with FastAPI, WebSockets, and row-level isolated PostgreSQL to coordinate live kitchen and table transactions.

Bi-Directional ASGI WebSocket Multiplexing

Engineered an event-driven Socket.IO broker running atop an asynchronous FastAPI event loop, multicasting table-side mutations to kitchen display terminals with sub-38ms propagation latency. Features exponential backoff reconnection protocols and automatic SSE fallback.

Kernel-Level Postgres RLS & RS256 Verification

Multi-tenant data isolation enforced strictly at the database engine level via Supabase PostgreSQL RLS policies. Custom PL/pgSQL routines parse and validate asymmetric Firebase RS256 JWT claims directly within transactional execution plans.

Optimistic Concurrency & Monotonic State Reconciliation

Mitigated table-side race conditions using client vector clocks paired with row-level ACID advisory locks. Employs MUX adaptive bitrate video stream chunking and lazy-loaded module partitioning to optimize critical rendering path metrics.

Topology Schematic · Tap To Dine Cluster

ASGI Event Loop

EDGE CLIENTSAngular / MUX VideoVector Clock Sync

EVENT BROKERFastAPI / Socket.IOUvicorn ASGI Loop

ACID DATA LAYERSupabase PostgreSQLRS256 RLS Isolation

P99 Event Latency< 38 ms

Tenancy ModelKernel-Level RLS

Event LoopFastAPI Uvicorn

Live Application: Production Edge POSVisit taptodine.app

FastAPI (ASGI)Python 3.12Socket.IOSupabase RLSPostgreSQLFirebase RS256Vector ClocksChart.jsMUX HLSRender CI/CD

Distributed Market Data Ingestion & NLP Transformer Pipeline

Novi Finance

Architecture BlueprintNode.js / Python Microservices · FinBERT Sentiment Models · Vercel Edge Cache

A full-stack portfolio analytics engine built with Angular, Node.js, and Python microservices to automate growth modeling and sentiment-driven market insights across TFSA, RRSP, and FHSA accounts.

Asynchronous Message Brokering & Ingestion Queue

Decoupled high-frequency market tick feeds and SEC EDGAR disclosures through an asynchronous Python worker pipeline. In-memory message queues buffer bursts of over 18,000 events/minute, preventing database thread starvation.

FinBERT Transformer Sentiment Inference Pipeline

Containerized microservice running quantized FinBERT NLP models over earnings call transcripts and real-time financial dispatches. Computes token-level sentiment polarity and confidence score tensors in sub-100ms inference cycles.

Edge Cache Layering & Dynamic Stale-Revalidation

Geo-distributed API responses materialized across Vercel Edge compute clusters with granular stale-while-revalidate caching headers, maintaining a 94.2% cache hit ratio and mitigating cold-start penalties across equity sessions.

Topology Schematic · Novi Market Pipeline

FinBERT Inference

TICK & SEC INGESTPython Async Workers18k events/min Queue

NLP VECTORIZERPyTorch / FinBERT98ms Tensor Inference

EDGE COMPUTATIONVercel Edge API94.2% Hit Cache

Inference Latency98 ms (FinBERT)

Edge Hit Ratio94.2% Cache Hit

Ingestion Queue18,000 /min

Live Platform: Distributed Market IntelligenceVisit novi-finance.vercel.app

Node.jsPython 3.12FinBERT / PyTorchRedis QueueWebSocket BusVercel EdgeStale-While-RevalidateFirebase Auth

Hardware-Level POS Handshake Protocol & Polyglot Cloud Archival

Receipto

Architecture BlueprintFlutter / Dart / Kotlin (JNI Channels) · MongoDB / AWS S3 · Dynamic POS QR Cryptography

An enterprise digital receipt infrastructure digitizing physical point-of-sale transactions via a custom dynamic QR handshake protocol, backed by polyglot AWS S3 blob storage and compound-indexed MongoDB replica sets.

Cryptographic POS Dynamic QR Handshake Protocol

Engineered a zero-paper transaction protocol encoding compressed, cryptographically signed POS payload tokens into dynamic terminal QR codes. Client camera sweeps execute mutual HMAC verification and ingest itemized carts in under 250ms without intermediate BLE pairing.

Decoupled Polyglot Persistence: AWS S3 + MongoDB Replica Sets

Asymmetric data tiering architecture: immutable receipt image and PDF binary artifacts are pushed directly to Amazon S3 via pre-signed upload URLs, while normalized transaction line items are indexed in MongoDB with compound text indexes for instant SKU regex lookups.

Native JNI Platform Channels & Non-Blocking Camera Buffering

Bridged Flutter's Dart VM to native Android CameraX and iOS AVFoundation via low-overhead platform channels. Isolates continuous video frame barcode analysis to native C++/Kotlin background threads, preventing UI jank and maintaining 60fps viewfinders.

Topology Schematic · Receipto POS Bridge

HMAC Protocol

TERMINAL PROTOCOLDynamic POS QRHMAC Verification

NATIVE JNI BRIDGEKotlin / CameraXZero-Jank Threads

POLYGLOT STORAGEAWS S3 + MongoDBPre-Signed Object Store

Handshake Verification< 250 ms (HMAC)

Storage ArchitectureS3 Blobs + Mongo Replica

Thread ModelZero-Jank Native Threading

Application Architecture & DemonstrationView Demo Video

Flutter / DartKotlin JNIAndroid CameraXAVFoundationAWS S3 Pre-SignedMongoDB ReplicaHMAC AuthPython Microservices

Zoneless Signal State Engine & Zero-CLS Image Pipeline

Astro Captures

Architecture BlueprintAngular 18 (Signals / Zoneless) · ImageKit / Cloudflare Workers · Statically Tiered JSON

A high-performance photographic asset delivery platform engineered with Angular 18 Signals, Cloudflare Workers edge caching, and an ImageKit dynamic transformation pipeline.

Double-Buffered Zero-CLS Blur-Up Loading & Disk Cache Reuse

Eliminated Cumulative Layout Shift (CLS: 0.00) by reusing pre-cached 800px grid thumbnails as in-memory decoded bitmap placeholders within calculated aspect-ratio bounds. The 2048px display layer is asynchronously pre-decoded via HTMLImageElement.decode() prior to opacity crossfades.

Angular 18 Reactive Signals & Zoneless Node Recycling

Architected state controllers using signal() and computed() primitives to drive view mutations (masonry, carousel, feed) independently of Zone.js monkey-patching. Employs Angular 18 native @for blocks with deterministic identity tracking to eliminate DOM reallocation.

Edge Runtime Manifest Delivery & Dynamic Mipmap Transcoding

Deployed Cloudflare Workers to serve immutable JSON manifests with sub-35ms global TTFB and long-lived edge cache headers. ImageKit edge pipeline dynamically negotiates modern AVIF and WebP encodings, compiling 4-tier responsive mipmaps (20px blur, 800px thumb, 2048px display, raw master).

Topology Schematic · Astro Captures CDN

Zero-CLS Pipeline

EDGE WORKER RUNTIMECloudflare Workers< 35ms Global TTFB

IMAGE TRANSCODINGImageKit Edge CDNAVIF / WebP Mipmaps

REACTIVE CLIENT COREAngular 18 Signal GraphZoneless DOM Recycle

Layout Stability0.00 CLS (Double Buffered)

Global Edge TTFB< 35 ms (Cloudflare)

Image DecodeAsync decode() Stack

Production App: Angular 18 StandaloneVisit astrocaptures.com

Angular 18 SignalsZoneless StateCloudflare WorkersImageKit CDNAVIF / WebP TranscodePointerEvent APIZero-CLS PipelineDeep Linking

Low-Latency macOS Keystroke Injection & Context-Aware HUD · Open Source

DevDeck

Architecture BlueprintSwift 5.7+ · AppKit / SwiftUI · CoreGraphics CGEvent Tap · POSIX Process Workers

A high-performance, native macOS developer utility delivering context-aware macros, universal snippet expansion, and sub-millisecond keystroke automation through an intuitive radial HUD.

Low-Latency Keystroke Injection & CGEvent Taps

Engineered a C-level CoreGraphics event tap pipeline via CGEventTapCreate and AXUIElement to intercept global hotkeys with sub-1ms response latency. Simulates hardware-level HID scancodes directly into frontmost application key-down event loops.

Context-Aware Frontmost App Profile Switching

Monitors workspace window states using NSWorkspace.didActivateApplicationNotification, dynamically hot-swapping macro layouts, snippets, and radial toolbars as active focus transitions across Xcode, VS Code, or creative suites.

Subprocess Automation & Ring Buffer Clipboard Cache

Executes sandboxed asynchronous shell scripts through pooled POSIX subprocess workers with stdout pipe streaming. Features an in-memory ring-buffer tracking clipboard snapshots with instantaneous circular snippet recall.

Topology Schematic · DevDeck Core Engine

Native Swift Engine

SYSTEM EVENT TAPCoreGraphics / CGEvent< 1ms Key Injection

WORKSPACE OBSERVERAppKit / NSWorkspaceDynamic App Profile

SUBPROCESS WORKERSwift Process / ShellPOSIX Async Exec

Input Latency< 1 ms (Native Tap)

Memory Footprint18.4 MB (Zero-Electron)

Target PlatformmacOS 13.0+

Open Source: MIT LicensedGitHub Repository

Swift 5.7macOS 13.0+AppKit / SwiftUICoreGraphics (CGEvent)AXUIElement APINSWorkspace ObserverPOSIX SubprocessesMIT Open Source

The Loadout & Credentials

Infrastructure & Industry Credentials

Education & Industry Credentials

Academic Degree

York University — BSc. CS

Sept 2022 – Aug 2026

Cloud Certification

Microsoft Azure (AZ-900)

Certified Azure Cloud Practitioner

Data Intelligence

Databricks Fundamentals

Certified Lakehouse & Analytics

Frontend Engineering

TypeScriptJavaScriptAngularReactFlutterDartNode.jsHTML/SCSSGSAPTailwind CSSAngular MaterialThymeleafBootstrap

Backend & Systems

PythonJavaSQLSpringBootFastAPIMavenPostgreSQLSupabaseSQLiteMongoDBKotlinSwiftCVerilog HDLRISC-V

Cloud, DevOps & Infra

AzureAWSGCPDockerOpenShiftVercelFirebaseFigmaGitUnix/BashPandasSeleniumPostmanJiraWAVEJAWSNVDA

AI & Agentic Tooling

Devin AIAntigravityClaude CodeCursorCodexGitHub CoPilotRovo

Architectural Disciplines

●Distributed REST & SOA

●WCAG 2.1 AA Compliance

01 / 06 — Glacial Equilibrium

Photography

01/

Glacial Equilibrium

— Joffre Lakes Provincial Park, BC

35mm · f/5.0 · 1/250s · ISO 400

Turquoise glacial waters reflecting dense alpine spruce forest wall at Joffre Lakes Provincial Park

EXIF Metadata

35mm · f/5.0 · 1/250s · ISO 400

Canon EOS Rebel SL2·EF-S 18-55mm f/4-5.6 IS STM

Subject: Alpine Glacial Reflection · Coast Mountains, BC

Optics: EF-S 18-55mm f/4-5.6 IS STM · Canon EOS Rebel SL2Landscape Limnology · Aug 18, 2025

02/

Echelon & Celestial Crescent

— Canadian International Air Show, Toronto

55mm · f/5.6 · 1/4000s · ISO 400

Three P-51 Mustang fighter planes in tight echelon formation banking across azure sky with crescent moon visible

EXIF Metadata

55mm · f/5.6 · 1/4000s · ISO 400

Canon EOS Rebel SL2·EF-S 18-55mm f/4-5.6 IS STM

Subject: P-51 Mustang Formation · Toronto Waterfront Sky

Optics: EF-S 18-55mm f/4-5.6 IS STM · Canon EOS Rebel SL2Aviation Telephoto · Sept 6, 2026

03/

Architectural Horizon at Dawn

— BraeBen Ridge, Mississauga

55mm · f/7.1 · 1/400s · ISO 100

Golden hour dawn illumination across rolling green hills towards the silhouette of Mississauga City Centre skyline

EXIF Metadata

55mm · f/7.1 · 1/400s · ISO 100

Canon EOS Rebel SL2·EF-S 55-250mm f/4-5.6 IS

Subject: Mississauga Skyline Silhouette · Golden Hour Contour

Optics: EF-S 55-250mm f/4-5.6 IS · Canon EOS Rebel SL2Architectural Topography · Sept 27, 2026

04/

Downy Woodpecker in Canopy

— Riverwood Conservancy, Mississauga

250mm · f/5.6 · 1/200s · ISO 6400

Downy Woodpecker with vivid red crown patch perched upright on textured tree bark with soft bokeh background

EXIF Metadata

250mm · f/5.6 · 1/200s · ISO 6400

Canon EOS Rebel SL2·EF-S 55-250mm f/4-5.6 IS

Subject: Dryobates pubescens · Riverwood Conservancy, Mississauga

Optics: EF-S 55-250mm f/4-5.6 IS · Canon EOS Rebel SL2Wildlife Ornithology · Sept 22, 2026

05/

Lavender Cosmos

— Riverwood Conservancy, Mississauga

194mm · f/5.6 · 1/640s · ISO 1600

Lavender Cosmos flower in bloom with soft bokeh at Riverwood Conservancy

EXIF Metadata

194mm · f/5.6 · 1/640s · ISO 1600

Canon EOS Rebel SL2·EF-S 55-250mm f/4-5.6 IS

Subject: Cosmos bipinnatus · Riverwood Conservancy, Mississauga

Optics: EF-S 55-250mm f/4-5.6 IS · Canon EOS Rebel SL2Botanical Macro · Sept 22, 2026

06/

Urban Core & Corridor

— Gardiner Expressway & CN Tower, Toronto

55mm · f/8.0 · 1/500s · ISO 100

Gardiner Expressway approach toward the downtown Toronto skyline and CN Tower

EXIF Metadata

55mm · f/8.0 · 1/500s · ISO 100

Canon EOS Rebel SL2·EF-S 18-55mm f/4-5.6 IS STM

Subject: Metropolitan Transit Arterial · Toronto Skyline

Optics: EF-S 18-55mm f/4-5.6 IS STM · Canon EOS Rebel SL2Urban Architecture · Sept 6, 2026

Curated visual works and photo essays archived at astrocaptures.com ↗

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