Senior Backend Engineer developing scalable backend services and APIs for US Mobile. Focused on online security and connectivity for millions of devices.
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
Requirements
7+ years of experience with Java and Spring Boot
Strong experience within Online Security, including:
Protecting internet-connected devices, networks, and personal data from digital threats
Authentication and Access management
Software Protection
Network Security
Threat Detection
Strong experience building and consuming REST APIs at scale
Hands-on experience with message brokers such as RabbitMQ or AWS SQS/SNS
Familiarity with MongoDB or other NoSQL database technologies
Solid understanding of Git, CI/CD workflows, and agile development practices
Excellent debugging, problem-solving, and communication skills
Strong team collaboration instincts, you make the people around you better
API/Backend Developer role designing, developing, and maintaining scalable backend services and RESTful APIs using Java and Spring Boot. Onsite in Mississauga/Toronto, ON.
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