Software Engineer in Toronto

Hi, I'm Joel Sajicrafting products that feel world-class.

I partner with founders and teams to design and build performant web products with clear UX, strong systems thinking, and polished interactions.

5+Years Building

Product + engineering

20+Projects Shipped

SaaS & platforms

15+Core Technologies

Full-stack depth

TorontoBase

Available globally

100%Performance Focus

Lighthouse-driven

Services

How I Can Help

Focused engagements that move products from idea to impact, or from good to exceptional.

Full-Stack Web Apps

End-to-end product development from database design to polished interfaces, built for scale and maintainability.

What you get

Production-ready web applications with clean architecture, comprehensive testing, and deployment pipelines.

Startups and teams shipping their first or next major product.

AI-Powered Prototypes

Rapid prototyping of AI-integrated products — from concept to working demo with modern LLM and agent workflows.

What you get

Functional prototypes that validate ideas fast, with clear paths to production-grade implementations.

Founders and teams exploring AI features, agents, or automation tools.

Performance & UX Audits

Deep-dive analysis of your existing product's performance bottlenecks, accessibility gaps, and UX friction points.

What you get

Prioritized action plan with measurable improvements to Core Web Vitals, conversion, and user satisfaction.

Teams with an existing product that needs to be faster and easier to use.

SaaS & Product Engineering

Ongoing product engineering for SaaS platforms — feature development, system design, and technical leadership.

What you get

Reliable feature velocity with architectural decisions that support long-term product growth.

SaaS companies needing senior engineering capacity or technical leadership.

Location

Toronto

I work from Toronto and collaborate with teams globally, blending product design thinking with modern engineering execution.

Click and drag to explore

Selected Work

Featured Projects

Products and platforms designed for clarity, speed, and long-term maintainability.

What I optimize for
  • Interface quality that makes products feel premium and intuitive.
  • Technical architecture that supports scale from day one.
  • Fast execution with clear communication and product ownership.
Waveform Apps
Next.js
Featured
Live

Waveform Apps

A consultancy service specializing in building custom AI-powered web applications, focusing on speed, seamless integration, and expert guidance.

ReactTypeScriptTailwind CSS+2
Church Grid
Next.js
Featured
Live

Church Grid

A web application designed to streamline church operations, including member management, event scheduling, communication tools, and donation tracking.

ReactTypeScriptTailwind CSS+2