Senior Software Engineer - C#/.NET & SQL

Salary: $100,000 - 120,000 per year Requirements:

• We require a bachelors or masters degree in a related discipline.
• We require 7+ years of professional software engineering experience with C# and modern cross-platform .NET.
• We need strong analytical and problem-solving abilities, close attention to detail, and clear written and verbal communication.
• We require hands-on experience building and supporting back-end services and APIs, including data access and work with relational databases such as MS SQL Server.
• We expect working knowledge of modern front-end development, such as React, Vite, or Next.js, sufficient to contribute when needed.
• We value experience using AI tools thoughtfully across the development lifecycle while maintaining quality and security standards.
• We require the ability to work in person in Williamsburg, VA, within daily commuting distance.
• We require United States citizenship.
• We are not considering recent graduates; this role requires at least 7 years of experience.

• We collaborate with cross-functional partners to understand business goals, user needs, and product direction.
• We participate in Agile/Scrum ceremonies and support incremental delivery and continuous improvement.
• We contribute to technical discussions by weighing tradeoffs, asking thoughtful questions, and aligning implementation with intended outcomes.
• We design, develop, and maintain reliable, secure, high-performing back-end services and APIs using .NET, ASP.NET Core, and C#.
• We create relational database schemas and write efficient SQL Server queries and data access patterns.
• We apply clean code practices, secure coding habits, and principles such as SOLID in day-to-day development.
• We build and maintain modern web UI components when needed using technologies such as React, Vite, and Next.js.
• We handle end-to-end product concerns including authentication flows, API contracts, error handling, and user experience impacts.
• We contribute to solution design using modern approaches such as microservices, domain-driven design, event-driven systems, and RESTful services.
• We participate in design reviews and help keep implementations maintainable and aligned with team standards.
• We integrate applications with identity and access management providers such as Entra ID or Auth0.
• We support integrations with enterprise platforms such as LMS, EAM, and HCM systems.
• We write and maintain unit, integration, and end-to-end tests to reduce defects and regression risk.
• We develop proof-of-concepts to evaluate new tools and frameworks when appropriate.
• We build software with operational readiness in mind, including observability, resilience, and secure-by-default practices.
• We use Docker to standardize and simplify deployments.
• We apply infrastructure-as-code practices, such as Bicep, to provision Azure resources including App Services, Azure SQL Databases, Storage Accounts, Function Apps, and Key Vaults.
• We use message brokers such as Azure Service Bus or RabbitMQ for event-driven workflows where appropriate.
• We follow suitable Git branching strategies and contribute to Azure DevOps CI/CD pipelines, including quality gates such as linting, static analysis, and build/test automation.
• We use modern AI tools responsibly to speed up tasks such as scaffolding, refactoring, and test generation while preserving code quality and security.
• We stay current on AI developments that may improve engineering workflows.

• AI
• API
• ASP.NET
• Azure
• C#
• CI/CD
• DevOps
• Docker
• EAM
• Git
• Support
• RabbitMQ
• React
• SQL
• Security
• Web
• microservices
• UX UI Design
• Cloud
• 3D
• Claude Code
• Copilot
• CQRS
• Cursor
• GameDev
• GitHub
• NoSQL
• Unity

More:

We are Index AR Solutions, and our mission is to make workers safer and more capable of doing their jobs. We build modern, scalable internal and client-facing products, often greenfield, using current tools and patterns rather than legacy constraints. Our team values respect, clear communication, adaptability, learning, and a growth mindset. This is a full-time, in-person role based in our Williamsburg, VA office, with a hybrid schedule and work-from-home flexibility after onboarding and training. The position is within daily commuting distance of our office, includes occasional travel as needed, and offers a competitive salary range of $100,000 to $120,000 along with a strong benefits package that includes retirement savings, health coverage, disability and life insurance, pet insurance, paid holidays, PTO, and paid parental leave.

last updated 33 week of 2026