Back End Developer

Our company description

Mission is a platform for hiring, vetting and managing software development talents. It enables our clients to connect with the world’s best talent to build mission-critical software products. About the client:

A growing software company developing an AI-driven platform that helps organizations respond to and convert inbound customer inquiries. The product is used by a large and expanding customer base across North America. The team values speed, modern engineering practices, and building scalable software that delivers measurable business impact. About the role:

🌍 Location: Hybrid in Toronto

💰 Compensation: $65–$75 CAD hourly We are seeking a Senior Software Developer to help build and evolve a modern SaaS platform as we transition from a legacy PHP monolith to a scalable, AI-enabled architecture. This is a hands-on role where you will contribute to system design, write production code, and help establish engineering practices as the team grows. What You’ll Do:

Working closely with the CTO and a small engineering team, you will play a key role in shaping technical direction while delivering reliable, high-quality software. Over time, this role offers a path toward technical leadership, including mentoring developers and leading a development pod as the organization scales. Key Responsibilities:

Contribute to the architecture and design of a modern SaaS platform

Develop and ship high-quality backend services and APIs

Participate in code reviews and maintain engineering standards

Support system reliability, deployments, and production operations

Mentor junior developers and contribute to team growth Qualifications:

7+ years of professional software development experience

Strong backend development experience in Node.js. You will guide the development.

Experience designing distributed or service-oriented systems

Familiarity with PostgreSQL, Redis, Docker, and AWS

Experience with code reviews, deployments, and production environments

Interest in AI-assisted development and modern engineering workflows Nice to Have:

Experience with PHP/Laravel (helpful for system migration), Go and Rust.

Experience building AI-enabled products or working with LLM integrations

Familiarity with AI development tools such as Copilot, Cursor, or similar

Prior mentorship or team leadership experience What We Offer:

A small, fast-moving engineering team where your work has real impact

Direct collaboration with leadership and influence over technical direction

Opportunity to grow into engineering leadership as the team scales

Competitive compensation and benefits

Hybrid work environment in Toronto