Senior Software Engineer – Nashville / Mt. Juliet, TN - onsite
Hybrid Support + Development Role**
Location: M-F onsite in Mt. Juliet, TN
Type: 6-month contract-to-permanent position
Environment: Azure, .NET 8, C#, API-driven platform
Expert Technical Solutions is seeking a Senior Software Engineer with strong development experience who is also comfortable providing hands-on, onsite application support for a mission-critical inventory and operations system. This role blends daily production support, troubleshooting, and system reliability work with active software development, including enhancements, optimizations, and new feature development.
This is NOT a help-desk or IT support position — the ideal candidate is a true software engineer who enjoys solving operational issues, debugging live systems, improving codebases, and owning technical outcomes in a fast-paced environment.
Responsibilities:
Application Support + Troubleshooting (Daily)
Monitor and support backend services that sync inventory and operational data between multiple systems
Investigate and resolve issues with system connections, data flow, and messaging
Ensure daily processing jobs and data syncs complete successfully
Work directly onsite to diagnose issues quickly and keep operations running smoothly
Software Development (Ongoing)
Design, maintain, and enhance backend APIs and services using C# / .NET 8
Build new features to support warehouse and logistics operations
Improve service performance, scalability, and reliability
Apply SOLID and clean architecture principles to keep the platform maintainable
Refactor and optimize existing code for readability, speed, and stability
Cloud \& Architecture
Work with Azure PaaS services (Azure Functions, Event Grid, Azure Table Storage)
Support a service-oriented architecture and event-driven processing
Implement and improve application security for APIs and web interfaces
Collaboration \& Documentation
Work closely with front-end developers, infrastructure teams, and database engineers
Document APIs, workflows, system changes, and troubleshooting procedures
Provide clear status updates and communicate effectively with technical stakeholders
Requirements:
Strong experience in C# and .NET backend development
Hands-on experience building and maintaining RESTful APIs
Understanding of SOLID principles and clean coding practices
Experience with Azure services (Functions, Event Grid, Table Storage preferred)
Strong debugging and problem-solving abilities
Ability to write clean, testable, maintainable code
Familiarity with Git and version control
Understanding of secure coding practices and API security
Preferred Skills:
5+ years of professional software development experience
Experience working in service-oriented or event-driven architectures
Exposure to CI/CD pipelines and automated deployments
Performance tuning for backend services and cloud-hosted applications
Experience working in Agile or iterative development environments
Bachelor’s degree in Computer Science, Software Engineering, or related field
This role is ideal for someone who:
Enjoys hands-on technical problem solving
Wants a mix of development + operations
Can own and support a production environment
Likes being close to the business impact
Thrives in an onsite, collaborative setting
Is comfortable being the technical go-to person for a critical system
Job Types: Full-time, Contract
Pay: $55.00 - $65.00 per hour
Benefits:
Dental insurance
Health insurance
Vision insurance
Work Location: In person