Senior Software Engineer (.NET/C#/Azure)

Ontrac Solutions Inc · United States · $90k – $100k · posted today ago

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About this role

OVERVIEW

OnTrac is seeking a Senior Software Engineer (.NET / C# / Azure) to join a contractor program supporting a large wholesale digital-marketplace customer. The customer is rebuilding its digital auction platform and decoupling it from a legacy auction management system, standing up a new, independent, modern auction backend purpose-built for a digital-first marketplace. Phase 1 delivers the core platform: inventory management, financial transactions, and customer management. The initiative is broad in scope and spans four or more teams. This role is ideal for a hands-on senior engineer who writes production C# on .NET Core, is comfortable on Azure and Azure DevOps, and can collaborate across teams to turn business requirements into maintainable, scalable software.

ENGAGEMENT

• Expected start: ASAP

• Location: United States, fully remote

RESPONSIBILITIES

Implement core features for the new platform, which could include inventory management, financial transactions, and customer management
Collaborate closely with team members, other teams, and product managers to translate business requirements into technical solutions
Develop high-quality, maintainable, and efficient C# code within an agile development environment
Design and implement efficient data models and database interactions
Integrate the new system with existing platforms and third-party systems
Conduct code reviews and provide constructive feedback to peers
Troubleshoot and debug issues, ensuring optimal performance and reliability
Contribute to technical documentation and best practices

REQUIRED QUALIFICATIONS

Bachelor's degree in Computer Science, Software Engineering, or a related field
7+ years of experience in C# development, with a strong understanding of object-oriented programming principles
Extensive experience with .NET Core and C#
Familiarity with front-end development using modern frameworks, specifically React
Experience with the Microsoft Azure cloud platform, including core services and infrastructure
Experience creating and optimizing CI/CD pipelines, specifically within Azure DevOps
Understanding of software architecture principles and best practices, with proficiency in applying design patterns to solve technical challenges
Proficiency in designing and developing RESTful APIs
Solid understanding of database systems and storage (e.g., SQL Server, PostgreSQL, NoSQL) and ORM frameworks (e.g., Entity Framework)
Demonstrated ability to write clean, testable, and efficient code
Strong problem-solving skills and attention to detail
Excellent communication and collaboration skills