Freelance Data Engineers in TorontoFreelance Data Engineers in Toronto
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Antonio Coppe's avatar
Antonio Coppe
Toronto, Canada
Builds fast SaaS with React, Node, AI. Ships MVPs in weeks.
Builds fast SaaS with React, Node, AI. Ships MVPs in weeks.
Cover image for Full-Stack Engineer --> Grant Navigator Built an AI-assisted...
Full-Stack Engineer --> Grant Navigator Built an AI-assisted platform that helps Italian SMEs discover, qualify, and track government grants across multiple public sources. What I delivered: • Multi-source grant aggregation and structured search • AI-powered relevance scoring and natural-language summaries • User accounts, saved opportunities, and onboarding flow • Clean UI for browsing funding programs and eligibility filters Impact: • Centralizes scattered public funding data into one interface • Makes complex grant language understandable and actionable • Designed for real startup and SMB workflows Tech: Next.js, TypeScript, Supabase, Vercel, OpenAI API What this project shows: Product execution, data aggregation, UX clarity, and practical AI integration to solve a real information-navigation problem.
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Cover image for Full-Stack Engineer --> Riva dei Coz Booking Platform Built ...
Full-Stack Engineer --> Riva dei Coz Booking Platform Built a booking platform for a boutique hospitality business, letting guests reserve stays, pay online, and manage reservations smoothly. What I delivered: • Real-time availability and booking flow • Stripe payments and secure checkout • Sync with Booking.com (http://Booking.com) to avoid double bookings • Admin dashboard for pricing, dates, and guests • Mobile-friendly guest UI Impact: • Cut manual booking work by ~60 percent • Removed double-booking issues • Improved guest experience and conversion Tech: Next.js, TypeScript, Supabase, Stripe, Vercel What this project shows: End-to-end product build, payments, scheduling logic, and real customer deployment.
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106
Cover image for Full-Stack Engineer --> FuseQuote Built the quoting and sour...
Full-Stack Engineer --> FuseQuote Built the quoting and sourcing platform used by European electrical contractors to automate price comparison and generate client-ready proposals. What I delivered: • Supplier scraping and price aggregation • Quote builder with markup and tax logic • Clean proposal exports and approval workflow • Authentication, roles, and secure data flow • Deployment pipeline and monitoring setup Impact: • Reduced quoting time from hours to minutes • Eliminated manual supplier price checks • Increased win rate by making pricing faster and clearer Tech: Next.js, TypeScript, Python, Supabase, Stripe, Docker, GitHub Actions, Vercel What this project shows: Product thinking, data processing, real business automation, and production-grade execution end to end.
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163
Cover image for System Design Sandbox: Simulate Architectures for FAANG Prep...
System Design Sandbox: Simulate Architectures for FAANG Prep Built this interactive tool to make system design interviews hands-on. Pick scenarios like URL Shortener (5k RPS, 100ms P95), drag 9 components (CDN, Redis, Kafka), connect flows on an infinite canvas, and run simulations for instant latency/capacity feedback. No code needed. Key features: Real-time bottleneck detection, shareable designs via URL, mobile-friendly. Tech: React/Next.js frontend, Node.js backend, Vercel deploy, WebSockets for live sims. Impact: Beta users cut prep time 40%. One tester aced a senior engineer interview. Live demo: systemdesignsandbox.com (https://www.systemdesignsandbox.com/) Need a custom sim tool for your team? DM me.
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171
Data Engineer(1)
Arshad Kazi's avatar
Arshad Kazi
Oakville, Canada
Founder and Lead Developer at ShiftLogic
New to Contra
Founder and Lead Developer at ShiftLogic
Cover image for Automated vehicle inventory scraping and
Automated vehicle inventory scraping and reporting system. Scrapes dealership websites for inventory data, processes and structures the output, and generates daily reports. Technologies: Python, Playwright, BeautifulSoup, SQLite, cron
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3
Cover image for Smart Family Grocery List —
Smart Family Grocery List — Full-Stack Mobile App Personal project Privacy-first grocery list app with a FastAPI Python backend and Kotlin Android frontend. Features grocery price scraping and comparison across local Ontario stores, OpenStreetMap-based store locator, AES-GCM encrypted personal data, Siri Shortcut integration, and smart list optimization. Demonstrates full-stack development from mobile frontend to API to database. Technologies: FastAPI, Python, Kotlin, AES-GCM encryption, OpenStreetMap API, PostgreSQL/SQLite, Docker
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5
Cover image for Hermes Agent — AI Agent
Hermes Agent — AI Agent Orchestration Framework Personal project Built an AI agent framework that manages task delegation, model routing, and automated workflows across multiple LLM providers. Features include: cron-based job scheduling, multi-agent parallel task execution, automated file system management, and session-aware context retrieval. The system processes daily briefings, job market monitoring, and infrastructure management. Technologies: Python, LLM APIs, async task queues, git-based sync, shell automation
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5
Cover image for Auto Loan Calculator — Interactive
Auto Loan Calculator — Interactive Web App Personal project Live at autoloancalculator.arshadkazi.ca (http://autoloancalculator.arshadkazi.ca). Built a full-featured auto loan calculator with dynamic amortization schedules, trade-in valuation, and promotional rate comparison (including Ontario-specific pricing rules). Demonstrates front-end React/TypeScript development and deployment. Technologies: React, TypeScript, Vite, CSS, Cloudflare Pages
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3
Data Engineer(1)
Debadyuti RoyChowdhury's avatar
Debadyuti RoyChowdhury
Toronto, Canada
Product & Growth Strategy Expert with 18+ Years Experience
5.0
Rating
1
Followers
Product & Growth Strategy Expert with 18+ Years Experience
Cover image for E-Commerce Insights Data as a service
E-Commerce Insights Data as a service
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3
Cover image for Automotive Artificial Intelligence COE
Automotive Artificial Intelligence COE
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1
Cover image for Health Tech Data Architecture Overhaul
Health Tech Data Architecture Overhaul
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2
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Data Engineer(1)