- We’re looking for a skilled and motivated Senior Backend Engineer to help us scale connectivity to millions of devices, while keeping that platform secure from the ground up
- In this role, you’ll design, develop, and maintain scalable backend services and APIs that power our products, with deep ownership over online security: protecting devices and networks, hardening authentication and access controls, and building systems that detect and respond to threats in real time

- You’ll work in a collaborative, agile environment and contribute to mission-critical systems that millions of users depend on every day

- 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 tunin

- Write clean, testable,



and well-documented code with comprehensive unit and integration tests

- Participate in system architecture design, code reviews, and performance tuning

Benefits

- Gym reimbursement
- Free cellular service on the best network in the US

- Free lunch in NYC office & fully stocked kitchen

- Metrocard reimbursement
- Versatile working hours- Familiarity with MongoDB or other NoSQL database technologies

- Network Security
- Strong experience building and consuming REST APIs at scale

- Solid understanding of Git, CI/CD workflows, and agile development practices

- Protecting internet-connected devices, networks, and personal data from digital threats

- Strong team collaboration instincts, you make the people around you better

- Hands-on experience with message brokers such as RabbitMQ or AWS SQS/SNS

- Authentication and Access management
- 7+ years of experience with Java and Spring Boot

- Excellent debugging, problem-solving, and communication skills

- Threat Detection
- Strong experience within Online Security, including:

- Software Protection

📌 Senior Backend Engineer (Online Security) (Toronto)
🏢 Us Mobile
📍 Toronto