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

🔥 1 minute ago

🇺🇸 United States – Remote

💵 $75 - $85 / hour

⏳ Contract/Temporary

🟠 Senior

🖥 Software Engineer

👻 Ghost score 0%

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Redtech

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 1995

💼 Consulting

📣 Marketing

👥 HR Tech

Consulting • Marketing • HR Tech

Redtech is a trusted partner in staffing and recruiting, leveraging over 20 years of experience to connect clients with exceptional candidates across a variety of sectors. Specializing in permanent placements, contingent staffing, and managed service provider (MSP) solutions, Redtech focuses on delivering high-quality, vetted professionals to help organizations meet their workforce goals efficiently. They pride themselves on their commitment to quality, diversity, and continual improvement in the recruitment process, ensuring a sustainable competitive advantage for their clients.

📋 Description

• Design a means to generate an Asset Key from a globally unique identifier (GUID) • Assign Asset Keys to new ecosystem signs and retroactively assign them to existing signs • Help the client data modeler design and implement the database crosswalk and sign data schema • Design and implement the Data Exchange Layer (DEL) mediator component • Define DEL endpoints for sending IFC-centric sign data to and receiving data from the sign ecosystem • Enforce sign-change business rules and write pending sign changes to a staging environment • Design and implement the Gatekeeper component and its user interface • Display staged sign-data changes for review and allow approval, correction, or rejection • Propagate approved sign changes to the ecosystem • Implement security, administration, authentication, authorization, role-based access controls, and contextual help • Establish the sign data Source of Truth (SoT) and enable retrieval by Asset Key or identifier • Implement query mechanisms and direct-query user interfaces • Provide troubleshooting and maintenance during pilot phases • Document endpoints, interfaces, processes, and in-app guidance • Contribute to end-user training materials • Participate in project meetings, sprint planning, development cycles, demos, and retrospectives

🎯 Requirements

• Must reside in the US • Must be available to start work on 10/12/2026 • Monday through Friday, 8 AM to 5 PM Pacific Time schedule • 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 • Experience with Git, code review systems, CI/CD pipelines, and automated testing frameworks • Experience with Azure Web Apps, Azure SQL, Key Vault, REST API design, and modern .NET versions (6/7/8) • Full-stack development experience, including backend and frontend frameworks • Ability to collaborate with application, database, and network technical staff • Experience defining API endpoints • Strong problem-solving skills and ability to optimize, enhance, and fix existing applications • Experience implementing business rules for sign change management, lifecycle enforcement, and audit logging • Experience gathering requirements and delivering solutions with business analysts, subject matter experts, and technical staff • Experience participating in project meetings, sprint planning, development cycles, demos, and retrospectives • Experience enforcing business rules for sign changes; staging and reviewing pending changes • Experience developing workflow-related logic • Experience developing Gatekeeper components for reviewing, approving, correcting, or rejecting sign changes; propagating approved changes and maintaining logs • Experience establishing a Source of Truth (SoT) and retrieving sign data by Asset Key or identifier • Experience assigning and managing global Asset Keys and cross-referencing member system identifiers • Experience creating query mechanisms and user interfaces for retrieving SoT sign data • Experience implementing authentication, authorization, administration, role-based access controls, data integrity, privacy, and auditability standards • Ability to document endpoints, interfaces, and processes • Ability to contribute to in-app guidance, help documentation, and end-user training materials • Desirable: experience with ESRI, BIM/IFC data standards, large-scale SaaS/COTS software implementation, State of Washington or other state agencies, bSDD, IFC, and Agile/Scrum methodologies

🏖️ Benefits

• Choice of 2 Medical/RX insurance plans from Premera (Blue Cross/Blue Shield); employee premium 100% company paid by Redtech • Optional Dental/Vision coverage • Paid Time Off (PTO) • 401(k) plan with company match • Company paid Life/AD&D insurance for employee, packaged with Medical insurance participation