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Added 2 months ago
Director, Securities Post Trade Technology
Scotiabank
Toronto, Ontario
15+ years of technical experience including Java, MQ, Oracle, REST, Microservices, Spring boot, Cloud, K8 etc.
Added 1 month ago
Développeur logiciels - Software Developer
OneSpan
Montreal, QC
A Software Developer in Test (SDET) is a hybrid role that blends software engineering expertise with deep testing skills. SDETs design, develop, and maintain automated test frameworks,…
Added 6 months ago
C
Fullstack Integration Developer Vice President
Citi
Mississauga, ON
- Full-time
Gen-AI Full-Stack Development: Experience with Python and Java, backend frameworks (Spring Boot/Core, Flask/FastAPI), modern JavaScript frontend frameworks (React, Angular, Vue), and…
Added 6 months ago
C
Fullstack Integration Developer Vice President
Citi
Mississauga, Ontario
- Full-time
Gen-AI Full-Stack Development: Experience with Python and Java, backend frameworks (Spring Boot/Core, Flask/FastAPI), modern JavaScript frontend frameworks (React, Angular, Vue), and…
Added 2 months ago
Sr Staff Software Engineer
Kaseya Careers
Toronto, ON
Extensive Java Expertise: 7+ years of hands-on experience in Java development, including J2EE, Spring, and Hibernate
Added 6 months ago
UM
Senior Backend Engineer
US Mobile
Toronto, Ontario
- Full-time
Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python (Flask, Django)
Added 6 months ago
P
Senior Software Engineer - Java
PointClickCare
Mississauga, ON
- Full-time
Background with Spring Boot and Java ecosystem
Added 1 month ago
Senior Software Engineer
Evismart
Vancouver, BC
Strong command of at least one major stack Python, Node.js/React, Java/Spring, or Go. We use Python, Node.js, React.
Added 5 months ago
Architect, Software Engineering
Credera Experienced Hiring Job Board
Quinte West, Ontario
…client digital products, platform engineering and internal developer platforms, AI-native and agentic systems, and modernization of legacy estates. You set the technical direction, raise…
Added 4 months ago
Senior Java Engineer
Levio
Montreal, Quebec
7+ years of hands-on experience building Java 11+ services with Spring Boot and secured RESTful microservices.
Added 2 months ago
D
Java Tech Lead
Desjardins
Remote, Canada
- Full-time
- Remote
Strong expertise in Java, Spring, Angular, TypeScript, microservices architecture, databases, and more

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US Mobile

Senior Backend Engineer

Toronto, ON, Canada

$140,000 - $180,000 a year · Full-time

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Job details

Pay: $140,000 - $180,000 a year
Job type: Full-time
Experience: 7+ years of experience with Java and Spring Boot
Posting language: English
Posted: Apr 17, 2026

Original job description

US Mobile is building the future of wireless communication. The goal: one unified network open to any person and any device, worldwide. Connection without walls.

We’re getting there by empowering customers. All three major networks on one phone and one plan, plus home internet from Starlink. No lock-in. No commitments. Custom fit plans at every price point. 24/7 customer support with real people, empowered to help. We get real-time feedback from Reddit, surveys, and customer support informing product roadmaps and everything we do. It’s working - Consumer Reports named us the top-rated mobile carrier two years in a row.*

And we’re building innovative systems that scale. A network agnostic tech stack. Agile, cross-functional teams built on trust and mutual respect. This work isn’t for everyone. If you work fast, flexibly, and collaboratively - without compromising standards - we want to hear from you.

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.

\nYou will:

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

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
Strong experience with building and consuming REST APIs
Hands-on experience with message brokers such as RabbitMQ or AWS SQS/SNS
Familiarity with MongoDB or other NoSQL database technologies
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.
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.
Solid understanding of Git, CI/CD workflows, and agile development practices
Excellent debugging, problem-solving, and communication skills
Excellent problem-solving and debugging skills
Strong communication and team collaboration skills

Benefits:

Health care coverage
Flexible paid time off
Gym reimbursement
Free cell phone service
Your choice of equipment + Bose QC/Apple Airpod Pro headphones

$140,000 - $180,000 a year

Think you're a good fit? Apply to learn more!

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More about this job

Responsibilities

You will architect optimal solutions and deploy new features to scale the platform for millions of connected devices. You are also responsible for maintaining RESTful APIs, ensuring system uptime, and collaborating with cross-functional teams to deliver scalable features.

Requirements

Candidates must have 7+ years of experience with Java and Spring Boot, along with strong proficiency in REST APIs and message brokers. Experience with NoSQL databases, CI/CD workflows, and AI-assisted development tools is also required.

Skills

Java
Spring Boot
Python
Flask
Django
RESTful APIs
RabbitMQ
AWS SQS
AWS SNS
MongoDB
NoSQL
Git
CI/CD
Agile
Debugging
System architecture

Benefits

Health care coverage
Medical insurance
Dental insurance
Vision insurance
Flexible paid time off
Gym reimbursement
Commuter reimbursement
Free cell phone service
Equipment allowance
Bose QC headphones
Apple Airpod Pro headphones
401k

Visa sponsorship

Not detected in the job text

Keywords

Backend Engineering
Java
Spring Boot
Python
Flask
Django
RESTful APIs
RabbitMQ
AWS SQS
AWS SNS
MongoDB
NoSQL
Git
CI/CD
Agile
System Architecture
IoT
5G
Cloud Computing
AI-assisted development
Claude
Opencode
Scalability
Microservices
Software Engineering
Connectivity
Unit Testing
Integration Testing
Performance Tuning
DevOps

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