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Senior Backend Engineer (Online Security)

Usmobile

toronto, on, Canada Full-time July 12, 2026

Found Description

Overview

Senior Backend Engineer to help scale a secure, scalable backend platform powering connectivity across devices. Design, develop, and maintain backend services and APIs with ownership of online security, authentication and access controls, and real-time threat detection and response.

Responsibilities

  • Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python (Flask, Django)
  • Design and implement asynchronous service communication using RabbitMQ or AWS SQS/SNS
  • Work with NoSQL databases like MongoDB for data modeling and storage
  • Collaborate with Product, QA, and DevOps teams to deliver reliable and scalable features
  • Write clean, testable, and well-documented code with unit and integration tests
  • Participate in system architecture design, code reviews, and performance tuning

Qualifications

  • 7+ years of experience with Java and Spring Boot

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