Sr. Software Developer (Req #: 666)

Position Title: Sr. Software Developer (Req #: 666) Location: Fresno, CA Pay Range: $121,000.00 - $150,000.00 Position Description This position is responsible for designing, developing, and maintaining enterprise software applications across the full technology stack. The Sr. Software Developer works within a small, high-impact technology team to build and evolve the internal platforms that power construction operations, project management, logistics, financial reporting, and AI-driven decision support systems. This role requires strong expertise in .NET backend development and modern JavaScript/TypeScript frontends, with a growing emphasis on integrating AI and large language model capabilities into business applications. Essential Duties and Responsibilities Design, develop, and maintain backend APIs and services using .NET 9 and ASP.NET Core, following Clean Architecture and CQRS patterns with MediatR Build modern, responsive frontends with Next.js, React, TypeScript, and Tailwind CSS using component libraries such as shadcn/ui and AG Grid Enterprise Integrate AI and large language model capabilities into internal tools using Anthropic Claude, OpenAI, and emerging agent frameworks such as Microsoft Agent Framework Develop and optimize SQL Server databases, writing performant queries, managing Entity Framework Core migrations, and leveraging Dapper for high-throughput data access Modernize legacy systems by migrating older .NET and Angular codebases to current frameworks and architectures Build and maintain CI/CD pipelines with GitHub Actions, deploying applications to Windows Server/IIS and Azure cloud infrastructure Implement and maintain background processing systems using Hangfire for scheduled jobs, queue processing, data synchronization, and automated notifications Design and build reporting solutions using QuestPDF and ClosedXML, replacing legacy Crystal Reports and SSRS-based workflows Integrate with external systems including Viewpoint Vista ERP, Microsoft Graph API, and Azure Active Directory (Entra ID) Collaborate with a small technology team to scope, architect, and deliver features end‑to‑end, from database schema through API design to user interface Participate in code reviews, architectural discussions, and continuous improvement of development practices and tooling Support and troubleshoot production applications, diagnose performance issues, and implement monitoring and logging solutions using NLog, Serilog, and related tools Qualifications Required Education and Experience 5+ years of professional software development experience (9+ years in lieu of a degree) Strong proficiency in C# and .NET (ASP.NET Core, Entity Framework Core, MediatR, dependency injection) Experience building frontend applications with React and TypeScript Solid SQL Server skills including query optimization, stored procedures, and schema design Experience with RESTful API design and authentication patterns (JWT, OAuth 2.0, Windows Authentication) Proficiency with Git version control and CI/CD pipelines (GitHub Actions preferred) Ability to work across the full stack and take ownership of features from design through deployment Strong communication skills and comfort working in a small, collaborative team environment Desired Skills and Knowledge Experience with AI/LLM integration, working with APIs from Anthropic, OpenAI, or similar providers Familiarity with agent‑based architectures and multi‑agent systems Experience with Clean Architecture, CQRS, and domain‑driven design patterns Exposure to Next.js, Dapper, Hangfire, QuestPDF, or AG Grid Background in construction industry software, ERP integration, or Viewpoint Vista Experience with Node.js backend development using Fastify or Express Familiarity with Azure services including Azure AD/Entra ID, Blob Storage, and Service Bus Experience with Prisma ORM, SQLite, or Playwright end‑to‑end testing Knowledge of Tailwind CSS, shadcn/ui, Radix UI, or similar modern component libraries Certificates, Licenses, Registrations A valid California Driver's License Competencies Effective Communication Analytical Thinking Results Oriented Collaboration Initiative Thoroughness Technical Problem‑Solving Continuous Learning Personal Integrity Physical Demands The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. While performing the duties of this job, the employee is regularly required to use hands to finger, handle, or feel; reach with hands and arms and talk or hear. The employee is occasionally required to stand and walk. The employee must occasionally lift and/or move up to 25 pounds. Specific vision abilities required by this job include close vision, distance vision, depth perception and ability to adjust focus. Work Environment The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Office – The noise level in the work environment is usually moderate. Equal Opportunity Employer The Company is an Affimative Action and Equal Opportunity Employer/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Equal Employment Opportunity Posters if you’d like to view a copy of the company’s affirmative action plan or policy statement, please email . #J-18808-Ljbffr