Senior Fullstack Developer; Lylli App

Job in Toronto, Ontario, M5A, Canada

Listing for: Spin Master Ltd

Full Time position
Listed on 2026-02-15

Job specializations:

Software Development
Full Stack Developer, Software Engineer, Java Developer, React.js

Position: Senior Fullstack Developer (Lylli App)

Job Description

:
What will you work on? Lylli Studio is on a mission to make reading magical for children everywhere. Our app combines thousands of children’s books with personalized stories, helping families discover new ways to read, learn, and imagine together.

Lylli is looking for a Senior Fullstack Developer to help us scale the platform, build delightful new features, and bring the joy of reading to millions of families worldwide.
How will you create impact?

Lead the development of end-to-end features, from database design and APIs to frontend interfaces.

Collaborate with product managers, designers, and other engineers to turn ideas into reality.

Build scalable backend services (Java Spring Boot, Node.js) and polished frontend experiences (React).

Ensure performance, security, and reliability across the stack as we scale internationally.

Play an active role in architectural decisions and product strategy.

What are your skills and experience?

5+ years of experience as a fullstack engineer, with strong skills in both backend and frontend.

Solid knowledge of Java and/or Node.js and preferably React.

Experience with cloud infrastructure (AWS, GCP, or Azure), CI/CD pipelines, and scalable system design.

Strong understanding of relational databases and APIs (Postgres).

A product-driven mindset – you care about usability, performance, and making the experience magical for the end user.

Bonus:
Experience with mobile development, audio streaming, or content-heavy platforms.

This job posting is tied to an open vacancy.

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