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Ritchie Bros.

Senior Software Engineer

Hybrid

Mississauga, Canada

Senior

Full Time

10-02-2026

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Skills

Communication Java JavaScript C# SQL MySQL CI/CD Docker Kubernetes Test Scrum Research Attention to detail Training Architecture Cloud Architecture Programming Databases git jquery Merchandising Asp.Net SQL Server Azure AWS Marketing Agile Junit Spring Agile Scrum HTML5 Spring Boot AngularJS PostGres Microsoft Azure

Job Specifications

About Us

IAA Holdings, LLC (IAA)

IAA Holdings, LLC (IAA), a Ritchie Bros. Auctioneers company (NYSE: RBA) and (TSX: RBA), is a trusted global marketplace for insights, services, and transaction solutions for commercial assets and vehicles. Leveraging leading-edge technology and focusing on innovation, IAA’s unique platform facilitates the marketing and sale of total-loss, damaged and low-value vehicles. IAA serves a global buyer base – located throughout over 170 countries – and a full spectrum of sellers, including insurers, dealerships, fleet lease and rental car companies, and charitable organizations. Buyers have access to multiple digital bidding and buying channels, innovative vehicle merchandising, and efficient evaluation services, enhancing the overall purchasing experience. IAA offers sellers a comprehensive suite of services aimed at maximizing vehicle value, reducing administrative costs, shortening selling cycle time and delivering the highest economic returns.

Overview

JOB DESCRIPTION

We are seeking a Senior C#/.NET Developer who is passionate about modern technologies, scalable architectures, and high‑performance systems. This role involves close collaboration with fellow engineers, product owners, and solution architects to design and deliver robust, scalable, and maintainable applications.

The ideal candidate brings deep hands-on experience with the Microsoft technology stack, a strong understanding of software design principles, and a desire to mentor and elevate the engineering team.

Responsibilities

Design, develop, implement, and maintain high‑performance, scalable applications using the Microsoft technology stack
Collaborate with cross‑functional teams including developers, product architects, and stakeholders
Apply best practices in object‑oriented design, design patterns, and modern development methodologies
Contribute to architecture and technical design decisions
Support and troubleshoot production systems in a timely and effective manner
Participate in Agile ceremonies and contribute to continuous improvement initiatives
Mentor junior and mid‑level engineers and promote engineering excellence

Required Technical Skills

7+ years of professional application development experience using Microsoft technologies
Strong expertise in:
C#, ASP.NET, ASP.NET MVC, Web API
SQL Server
Experience with:
Parallel task and multi‑threaded programming
Asynchronous programming (async/await), delegates, and concurrency concepts
Solid understanding of:
Object‑Oriented Programming (OOP), interfaces, and SOLID principles
Design patterns including Dependency Injection and Domain‑Driven Design (DDD)
Front‑end development experience with:
JavaScript, jQuery, JSON, HTML5
MVVM architecture
Knockout.js (required)
Experience working in Agile/Scrum development environments

Preferred / Nice‑to‑Have Skills

Experience with real‑time communication technologies such as SignalR and WebSockets
Exposure to or hands‑on experience with Microsoft Azure (App Services, APIs, cloud architecture, etc.)
Experience integrating RESTful services and APIs

Qualifications

Bachelor’s degree in Computer Science, Engineering, or a related field
Minimum 7 years of professional application development experience
Excellent verbal and written communication skills with the ability to collaborate across teams
Strong organizational and time‑management skills with keen attention to detail
Demonstrated commitment to continuous learning through research, experimentation, and training
Proven ability and desire to mentor and guide team members

Qualifications

Should be proficient in both application development, application support and maintenance of production system
Minimum 7-10 years of application design and development experience
Expert level knowledge and experience with Java
Expert level knowledge and experience with Spring Framework
Expert knowledge and experience of developing and consuming Web Services using REST and SOAP
Expert knowledge with Spring boot micro-service, Spring Cloud, API development and API security
Experience working in relational databases: MySQL/Oracle/Postgres
Experience with Web and Application Servers, Tomcat preferred
Experience writing unit and integration test, preferred Junit, Mockito
Experience supporting and troubleshooting systems and software running in Prod
Preferred Skills:
Experience with Agile Scrum
Experience with TDD and Pair Programming
Experience with modern CI/CD tools and deployment pipelines
Experience with Git/Bitbucket
Experience with AWS
Experience with containerization tools like Docker, Kubernetes
Experience with Full stack development using HTML5, Java Script,Type Script, AngularJS

About the Company

Established in 1958, Ritchie Bros. (NYSE and TSX: RBA) is a global asset management and disposition company, offering customers end-to-end solutions for buying and selling used heavy equipment, trucks and other assets. Operating in a multitude of sectors, including construction, transportation, agriculture, energy, oil and gas, mining, and forestry, the company's selling channels include: Ritchie Bros. Auctioneers, the world's largest industrial auctioneer offers live auction events with online bidding; IronPlanet, an online... Know more