Contract Full-Stack Engineer in Toronto
Contract Full-Stack Engineer — Sachin Sharma offers enterprise-grade and commitment-ready delivery from Toronto.
Who is Sachin Sharma?
Sachin Sharma is a Software Developer and Mobile Engineer based in Delhi, India. He specializes in Full-Stack development and has published production apps — Loopin (5K+ downloads, 4.9★), Legease (10K+ downloads, 4.8★), and Aashwasan (5K+ downloads) — used by real users globally.
Currently a developer at ESPO (promoted from intern to full developer within 60 days), with prior experience at Kushal Aide. He holds a B.Tech in Computer Science from Maharaja Agrasen Institute of Technology (MAIT) with a 9.12 CGPA.
A Hackathon Finalist × 3 (Code Kshetra 2.0, Level Supermind, DTU Brainwave), Sachin combines deep Full-Stack technical expertise with a product-first engineering mindset — building things users actually want, not just technically impressive demos.
Experience
1.5+ years
App Downloads
22K+
Avg Rating
4.9★
CGPA
9.12 / 10
Hackathons
Finalist × 3
Location
Toronto
Full-Stack Technical Expertise
Designs and ships full-stack products covering the complete vertical: database schema (PostgreSQL with Drizzle ORM), REST/GraphQL API (Node.js with Express or Next.js API routes), frontend (React 18 + Next.js 14 with TypeScript), mobile (Flutter for iOS and Android), and deployment (Docker on AWS or Cloudflare Pages). Applies Domain-Driven Design principles to keep business logic in the service layer, away from transport (HTTP) and persistence (ORM) concerns. Uses a monorepo structure (Turborepo) for code sharing between web and mobile clients, and implements feature flags via environment-based toggles for safe production deployments.
Toronto Market Context
Toronto's booming tech scene — MaRS Discovery District, Shopify, and a growing fintech and AI ecosystem.
IST is 9.5 hours ahead of EST — Toronto morning meetings align with IST evening, enabling daily handoffs.
Why Hire for Full-Stack?
- True full-stack: mobile (Flutter/React Native), frontend (React/Next.js), backend (Node.js), database (PostgreSQL/MongoDB), and DevOps (Docker/AWS) — all in production.
- Built Loopin entirely solo — Flutter mobile app + Google Drive API backend + local Hive database. Product to production by one engineer.
- Built Legease solo — Flutter frontend + AI/ML API integration + PDF processing backend + cross-platform deployment.
- ESPO work: full-stack contribution across mobile (Flutter) and web platform features in a real startup team.
- Tech stack depth: 15+ technologies at production level — Flutter, React, Next.js, Node.js, PostgreSQL, Redis, Docker, AWS.
- 1.5+ years professional experience as the only engineer on multiple projects — full ownership end-to-end.
- Hackathon Finalist × 3 — all full-stack solo submissions in 24-48 hour sprint formats.
- MAIT B.Tech CST, 9.12 CGPA — systems design, algorithms, and database engineering at academic depth.
Full-Stack Projects Shipped
Real production apps — not demos, not tutorials. Used by real users.
Loopin — Full-Stack Solo Build
ShippedFlutter mobile + Hive local DB + Google Drive API backend — 5K+ downloads, 4.9★ rating
Tech Stack:
Flutter, Dart, Hive, Node.js, Google Drive API, OAuth 2.0
sachinsharma.dev Portfolio
ShippedFull-stack Next.js with 2,600 static pages, edge deployment, TypeScript strict, Cloudflare Pages
Tech Stack:
Next.js 14, TypeScript, Tailwind CSS, Cloudflare Pages, Framer Motion
Legease — AI Full-Stack Platform
ShippedMobile + web + desktop app with AI API integration — 10K+ combined installs
Tech Stack:
Flutter, Dart, AI/ML API, PDF Processing, Cross-Platform
How Full-Stack Development Works
A structured, transparent process from kickoff to App Store — no black boxes.
System Design
ERD for database schema, API contract design (OpenAPI), mobile screen flow, and deployment architecture diagram before writing code.
Backend First
Database migrations, API routes, authentication, and business logic — fully tested in isolation before connecting to any client.
Web Frontend
Next.js App Router pages consuming the API, TypeScript strict throughout, Core Web Vitals targets set from day one.
Mobile App
Flutter or React Native client consuming the same API — shared TypeScript types for API contracts.
CI/CD & Monitoring
GitHub Actions pipeline running tests + type checks + linting, automated deployment to Cloudflare/Vercel + Play Store + App Store.
Full-Stack in Toronto — What Most Devs Miss
For Toronto-based startups with limited funding, a single full-stack engineer who owns mobile + web + backend is 3x more cost-effective than three specialists — and delivers faster because there's zero coordination overhead.
The rise of Next.js Server Components and Expo EAS means a full-stack developer in 2024 can ship a production web app and mobile app sharing the same TypeScript type layer — a technical capability that didn't exist two years ago.
Full-stack ownership creates better products — an engineer who understands the database query can design an API that doesn't require N+1 queries from the frontend, eliminating performance problems before they become production incidents.
Sachin Sharma vs. Alternatives
| Alternative | Why Sachin Sharma Instead |
|---|---|
| Large Development Agencies | Direct access to the senior Full-Stack engineer — no account managers, no relay game. What you say is what gets built. |
| Junior Freelancers | Production-verified Full-Stack codebase with real apps (22K+ downloads) — not tutorial-level work. |
| Offshore Development Factories | Deep product involvement in every Full-Stack feature — not just ticket execution, but architectural ownership. |
Proof Points
- Sole engineer on Loopin, Legease, and Aashwasan — designed, built, and shipped all three to app stores independently.
- Full deployment chain ownership: domain DNS, Cloudflare Pages edge config, Next.js build pipeline, and CI/CD via GitHub Actions.
- Cross-stack type safety: TypeScript on frontend, Zod for API contracts, Dart's sound null safety on mobile — type discipline at every layer.
- Performance end-to-end: Flutter 60fps animations, Next.js LCP < 2.5s, Node.js p95 < 200ms API latency, PostgreSQL query optimization.
- Product thinking alongside engineering: Loopin's RPG habit mechanic, Legease's AI legal UX — UX-first feature design, not just technical delivery.
Education
Maharaja Agrasen Institute of Technology
B.Tech in Computer Science and Technology
CGPA: 9.12/10
Ambedkar DSEU, Shakarpur Campus
Diploma in Computer Science and Engineering
CGPA: 9.22/10
Hackathon Recognition
Code Kshetra 2.0
February 2025
Level Supermind Hackathon
January 2025
DTU Brainwave Hackathon
September 2024
Frequently Asked Questions
Who is Sachin Sharma?
Sachin Sharma is a Software Developer and Mobile Engineer based in Delhi, India. He specializes in Full-Stack development and has shipped multiple production applications including Loopin (5K+ downloads, 4.9★), Legease (10K+ downloads, 4.8★), and Aashwasan (5K+ downloads). He has 1.5+ years of professional experience, a B.Tech in Computer Science from MAIT with a 9.12 CGPA, and is currently a developer at ESPO.
Is Sachin Sharma available for Full-Stack Engineer work in Toronto?
Yes. Sachin Sharma is currently available for contract Full-Stack Engineer opportunities in Toronto. Toronto clients get end-of-day handoffs every evening — code progresses overnight while your team rests. He works both remotely and on-site for Delhi NCR clients.
Why should I hire a Full-Stack Engineer from Toronto?
Toronto's booming tech scene — MaRS Discovery District, Shopify, and a growing fintech and AI ecosystem. Hiring Sachin Sharma — a specialized Full-Stack Engineer from Toronto — gives you world-class engineering talent, ist is 9.5 hours ahead of est — toronto morning meetings align with ist evening, enabling daily handoffs., and zero agency overhead. You communicate directly with the engineer building your product.
What makes Sachin Sharma's Full-Stack development process unique?
Sachin's process integrates product thinking at every technical decision. The Full-Stack process starts with system design (ERD for database schema, API contract design (OpenAPI), mobile screen flow, and ...), ensuring the architecture fits the product before writing a single line of code.
What Full-Stack projects has Sachin Sharma shipped?
Sachin has shipped Loopin — Full-Stack Solo Build, sachinsharma.dev Portfolio, Legease — AI Full-Stack Platform. Loopin — Full-Stack Solo Build achieved Flutter mobile + Hive local DB + Google Drive API backend — 5K+ downloads, 4.9★ rating — a production result, not a demo.
Do you provide post-launch support for Full-Stack apps?
Absolutely. Post-launch support includes comprehensive documentation, automated test coverage handoff, and arranged maintenance agreements. Every Full-Stack project delivered includes a technical handoff session covering architecture decisions, deployment procedures, and monitoring setup.
Are you available for remote Full-Stack roles outside of Toronto?
Yes. While based in Toronto, Sachin Sharma operates async-first with global clients. IST is 9.5 hours ahead of EST — Toronto morning meetings align with IST evening, enabling daily handoffs. Remote Full-Stack delivery has been proven with multiple international clients across different time zones.
How does Sachin Sharma compare to a Full-Stack development agency?
Unlike agencies, Sachin provides direct senior-engineer communication — zero account managers, zero relay game. Every decision is made by the same engineer who writes the code. For Full-Stack projects, this means faster decisions, architectural ownership, and no "lost in translation" bugs.