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Senior Backend Developer

Toronto, Ontario💼 Full-time🗓 2026-03-18 → 2026-09-26

Core

Design, build, and scale data-driven platforms and systems at the intersection of platform engineering, system integrations, and intelligent product development.

Role type

Senior Backend Developer (Full-stack focus)

Builds

Scalable service-based architectures, robust APIs, event-driven services, and third-party integrations for Fortune 500 clients.

Domain

Enterprise SaaS / Data Platforms / System Integrations

Deliverable

production ML models | product features | infrastructure

Required skills

JavaScript, TypeScript, Node.js, GraphQL, RESTful APIs, distributed systems, system integrations, cloud-native architectures, Python, SQL, Docker, Git

Preferred skills

AI/ML integration, LLM APIs, intelligent automation pipelines, Kafka/SQS messaging systems, microservices architecture

Technologies

Node.js, TypeScript, JavaScript, Python, GraphQL, REST, Kafka, SQS, Docker, GCP, AWS

Responsibilities

Design and develop scalable front-end and back-end architectures; Architect and implement system integrations across internal services and third-party platforms; Collaborate with Product to translate business requirements into technical solutions; Drive development across teams for services built in Node.js, TypeScript, JavaScript, and Python; Design and maintain API contracts, data models, and integration patterns; Build and optimize secure, high-performance, and highly available systems; Contribute to AI-enabled features and workflows; Partner with architects to define system design and reusable frameworks; Produce clear technical documentation; Establish and enforce best practices in code quality, testing, and deployment; Lead code reviews, approve merges, and mentor engineers; Troubleshoot complex production issues; Oversee the end-to-end lifecycle of feature development.

Seniority

Senior, hands-on IC with mentorship responsibilities

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