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.
Product + engineering
SaaS & platforms
Full-stack depth
Available globally
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.
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.
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.
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.
Location
Toronto
I work from Toronto and collaborate with teams globally, blending product design thinking with modern engineering execution.
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Selected Work
Featured Projects
Products and platforms designed for clarity, speed, and long-term maintainability.
- 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
A consultancy service specializing in building custom AI-powered web applications, focusing on speed, seamless integration, and expert guidance.
Church Grid
A web application designed to streamline church operations, including member management, event scheduling, communication tools, and donation tracking.
Writing
Latest Notes
Insights on engineering systems, UX decisions, and shipping products with intent.