U
US Mobile
Senior Backend Engineer
Skills
MongoDBDjangoFlaskPythonJavaTesting & QASpring BootRabbitMQAIAWS
2 months ago
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Important information
Contract type:
Permanent
Salary:
$140,000 – $180,000 / year
Location:
Toronto, ON, Canada
Work mode:
Onsite
Published on:
29 August 2026
What they need
- We’re looking for an exceptional backend engineer and hands-on architect to help us scale and connect millions of devices to wireless networks
- The projects and potential impact are incredible
- We’re looking for talented, ambitious, and entrepreneurial team members who are excited to tackle these challenges
- Architect optimal solutions to our business problems
- Deploy exciting new features
- Help us scale to scale to 10’s of millions of customers & connected devices
- Build quality tools and frameworks to ensure a high-quality product
- Build systems to ensure continuous uptime
- 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
Benefits
- Gym reimbursement
- Free cellular service on the best network in the US
- Free lunch in NYC office & fully stocked kitchen
- Metrocard reimbursement
- Flexible working hours- Strong experience with building and consuming REST APIs
- Experience integrating and leveraging AI-assisted development tools such as Claude and Opencode to accelerate backend development, including code generation, debugging, and optimization of APIs and services
- Familiarity with MongoDB or other NoSQL database technologies
- Excellent problem-solving and debugging skills
- Excellent debugging, problem-solving, and communication skills
- Demonstrated ability to incorporate AI tools into the software development lifecycle, using Claude or Opencode for tasks like automated code reviews, documentation generation, and improving system design efficiency
- Strong communication and team collaboration skills
- Hands-on experience with message brokers such as RabbitMQ or AWS SQS/SNS
- 7+ years of experience with Java and Spring Boot
- Solid understanding of Git, CI/CD workflows, and agile development practices
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