Senior IT Application Developer - ASP.NET Core, C#, and SQL Server

Team: IT

Location: US

Commitment: Contract

Workplace Type: remote

Accountabilities:

• Design, develop, and maintain web applications, REST APIs, and modular services using ASP.NET Core, C#, SQL Server, Entity Framework Core or Dapper, HTML, CSS, and JavaScript.
• Design and implement a mechanism for generating and managing globally unique Asset Keys and associating them with system-specific identifiers.
• Collaborate with data modelers to design and implement database crosswalks, schemas, and source-of-truth structures.
• Develop a Data Exchange Layer (DEL) with APIs that allow connected systems to send and receive standardized asset data.
• Implement business rules governing asset changes, lifecycle management, staging, validation, and audit logging.
• Design and develop a Gatekeeper component that enables authorized users to review, approve, correct, or reject pending changes.
• Ensure approved changes are propagated correctly into the centralized ecosystem while maintaining complete audit trails.
• Build query mechanisms and user interfaces that allow business users to retrieve source-of-truth data using Asset Keys or other identifiers.
• Implement authentication, authorization, role-based access controls, administrative configuration, and contextual in-application guidance.
• Develop workflow-related functionality for managing pending changes and approval processes.
• Deploy and maintain applications using cloud services such as Azure Web Apps, Azure SQL, and Key Vault.
• Participate in code reviews, CI/CD processes, automated testing, sprint planning, demonstrations, retrospectives, and other development activities.
• Collaborate with business analysts, subject-matter experts, application teams, database teams, and network specialists to gather requirements and deliver solutions.
• Troubleshoot, enhance, optimize, and maintain existing applications during pilot and implementation phases.
• Document APIs, interfaces, processes, and technical workflows for users, developers, and maintainers.
• Contribute to user guidance, help documentation, and end-user training materials while ensuring data integrity, privacy, and auditability.

Requirements:

• Strong professional experience developing web applications, REST APIs, and modular services with ASP.NET Core, C#, and SQL Server.
• Hands-on experience with Entity Framework Core or Dapper, HTML, CSS, JavaScript, and full-stack application development.
• Experience with modern .NET versions, including .NET 6, 7, or 8.
• Experience designing REST APIs and defining API endpoints and integration interfaces.
• Experience with Git, source control, code review systems, CI/CD pipelines, and automated testing frameworks.
• Practical experience deploying applications to cloud environments, particularly Azure Web Apps, Azure SQL, and Key Vault.
• Strong understanding of database design, data modeling, data integrity, and source-of-truth architectures.
• Experience implementing business rules, workflow logic, approval processes, lifecycle management, and audit logging.
• Experience implementing authentication, authorization, and role-based access controls.
• Strong troubleshooting, problem-solving, optimization, and software maintenance capabilities.
• Ability to collaborate effectively with application, database, network, business, and subject-matter experts.
• Strong communication skills and the ability to translate requirements into scalable technical solutions.
• Experience working within Agile or Scrum development environments is preferred.
• Experience with geospatial technologies such as ESRI is a plus.
• Familiarity with BIM/IFC data standards, bSDD, and large-scale SaaS or COTS software implementations is desirable.
• Previous experience delivering IT application development services for state agencies, particularly the State of Washington, is preferred.
• Must reside in the United States and be available to work Monday through Friday from 8:00 AM to 5:00 PM Pacific Time.
• Must be available to start on October 12, 2026.

Benefits:

• Contract compensation of $75–$85 per hour on a W2 basis, assuming full benefits participation.
• Fully remote position within the United States.
• Contract duration from mid-October 2026 through mid-October 2027.
• Choice of two Premera Blue Cross/Blue Shield medical and prescription insurance plans.
• 100% company-paid employee medical insurance premiums, subject to eligibility and plan participation.
• Optional dental and vision coverage.
• Paid Time Off (PTO).
• 401(k) retirement plan with company matching.
• Company-paid Life and AD&D insurance for employees participating in medical coverage.
• Opportunity to contribute to a major statewide modernization and enterprise integration initiative.
• Exposure to modern .NET, Azure, API integration, data architecture, workflow automation, and full-stack development.