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Added 4 months ago
Site Reliability Engineer
Tecsys Inc.
Remote, Canada
Full-time · Remote
We are looking for a Site Reliability Engineer to join our Network and Security Operations Center (NOC), a team at the heart of platform reliability for mission-critical SaaS environments.…
Added 25 days ago
Senior Data Engineer
Asana
Vancouver, BC
Proficiency in data processing and storage technologies like Databricks, AWS/S3, Python/Scala/Java, SQL, Spark, and Airflow
Added 5 months ago
Business System Engineer
Hyve Solutions
Ontario · Ontario, Canada
Full-time
…designs, while leveraging expertise in software development (Java, SQL, Python), database design, and software architecture (REST, event-driven, distributed systems). The position also…
Added 1 month ago
Sr Staff Software Engineer
Kaseya Careers
Toronto, ON
We’re looking for a Senior Staff Engineer who thrives on solving complex problems and building and supporting secure, multitenant, fault-tolerant systems at scale. You’ll play a critical…
Added 25 days ago
Staff Product Engineer - Search FX (Discovery Experience)
Faire
Kitchener, ON · Toronto, ON
As a Staff Engineer on the Search FX team, you will be a primary technical architect for our retailer-facing search surfaces. You will own the technical roadmap for search, recommendations,…
Added 5 months ago
Senior Software Engineer (Product)
Owl.co
Vancouver, British Columbia · Toronto, Ontario
$150,000 to $250,000 CAD / year
Full-time
We are seeking a talented Senior Software Engineer to join our Product team. In this role, you will work closely with cross-functional teams to design and develop innovative products that…
Added 5 months ago
Lead Software Developer (AOSP)
Syntronic
Waterloo, Ontario
Full-time
We are seeking a Lead Software Engineer to drive the design, development, and maintenance of complex software products within the Android ecosystem. This role spans the entire Software…
Added 5 months ago
Machine Learning Engineer
TD
Remote, Canada
Full-time · Remote
Strong coding proficiency in Python, Java, C, or C++
Added 5 months ago
Senior Backend Engineer
US Mobile
Toronto, Ontario
Full-time
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…
Added 1 month ago
Software Engineer
RBGlobal
Mississauga, ON
Full-time
We are looking for an enthusiastic and motivated software engineer to join our marketplace teams. This is an excellent opportunity for someone early in their career who is eager to learn…
Added 5 months ago
Quality Assurance Engineer
KUBRA
Mississauga, Ontario
Full-time
Experience developing automated tests using JavaScript/TypeScript (preferred), Java, or C#.
Added 4 months ago
Senior C++ Application Developer
TMX Group
Toronto, Ontario
$120,000 to $130,000 CAD / year
Full-time
We are looking for a versatile Senior Software Engineer to join our core team and help us build and maintain high-quality software. You will be a key contributor across our entire technical…
Added 5 months ago
Senior Software Engineer - Java
PointClickCare
Mississauga, ON
Full-time
Background with Spring Boot and Java ecosystem
Added 1 month ago
Specialist, AI Engineering
Definity Insurance Company
Toronto, ON
Full-time
We are seeking a forward-thinking AI Engineer to join our innovative team and drive the future of Property & Casualty (P&C) insurance. This role is pivotal in bridging the gap between…
Added 1 month ago
Principal Software Engineer - Data
ZoomInfo Technologies LLC
Toronto, ON
We are seeking an experienced Principal Software Engineer (Data) to join our fast-paced, collaborative data team. In this role, you will have broad authority to drive the direction of our…
Added 1 month ago
Software Development Engineer II, ML Platform
Remitly
Burnaby, BC
Full-time
We're seeking a Senior Engineer to shape the tooling and infrastructure that power the next generation of scalable AI / ML products at Remitly. In this role, you'll collaborate with AI /…
Added 5 months ago
Engineering Manager
Pigment
Toronto, Ontario
Full-time
Senior-level experience as a software engineer working on production systems (typically 7–8+ years)
Added 6 months ago
Senior Principal Compiler Engineer
Huawei Technologies Canada Co., Ltd.
Ottawa, ON
Full-time
Huawei Canada has an immediate permanent opening for a Senior Principal Compiler Engineer.
Added 16 days ago
Guidewire Developer - Rating / Pricing
Aviva
Markham, ON
Other
Read code in other languages and reverse engineer products.
Added 2 months ago
Senior Software Engineer, Full Stack
Brex
Vancouver, British Columbia
As a Senior Full-Stack Software Engineer on our Task Workflows Platform team, you will build and scale the foundational infrastructure that powers core experiences across Brex. You will…
Added 26 days ago
Senior Software Engineer
Evismart
Vancouver, BC
…you're ready to stop being the boss and start being the best engineer in the room, I want to…
Added 2 months ago
Staff Performance Engineer
Omnissa
Vancouver, British Columbia · British Columbia · Canada-British Columbia
$200,000 to $253,650 CAD / year
Full-time
As a Staff Performance Engineer, you will be responsible for automating Performance tests, identifying and resolving performance bottlenecks across the entire system stack, including the…
Added 1 month ago
Senior Software Developer, Data Infrastructure
Autodesk
Toronto, ON · AMER - Canada - Ontario - Toronto - University Ave
Full-time
Software Engineer, DataOS Infra Platform - P3
Added 1 month ago
Principal AI Software Developer
Autodesk
Toronto, ON · Montreal, QC · AMER - Canada - Ontario - Toronto - University Ave
Full-time
We are looking for a Principal Software Engineer to help lead the architecture, execution, and operational excellence of this platform. This is a senior individual contributor role for an…
Added 5 months ago
Principal Pre-sales Engineer - ALM (Automotive)
PTC
Canada
Full-time

US Mobile

Senior Backend Engineer

Toronto, ON, Canada

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

Apply About employer

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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!

Apply About employer

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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