Senior Full MS Stack Software Developer

Hybrid contract opportunity in Portland, Oregon with a Pacific Northwest utility provider. This role focuses on building and operating mission-critical full-stack enterprise applications, including power scheduling systems, within a 24/7 environment. You will work on systems that require reliability, performance, and strong engineering practices, supported by a team that follows enterprise change management and separation of duties.

What you’ll be doing

• Design, implement, and maintain new features for the power scheduling system using established Clean Architecture patterns, SOLID, and object-oriented best practices.
• Partner with domain experts to convert complex business rules and functional specifications into scalable, maintainable software.
• Build and maintain high-performance backend services, middleware pipelines, and scheduled background processing jobs.
• Maintain, secure, and extend RESTful APIs and legacy service contracts to support reliable enterprise data exchange and cross-system integration.
• Implement asynchronous workflows and event-handling mechanisms across application layers.
• Develop and enhance user-facing interfaces for operator and customer portals supporting operational monitoring, scheduling, and data entry.
• Support modern web frontends (for example, Angular) and existing operational Windows clients (WPF/WinForms), including verifying responsive performance and stable client-server synchronization.
• Author, tune, and optimize SQL Server queries, stored procedures, and schema migrations across a multi-schema database environment.
• Verify data consistency, query performance, and indexing efficiency for high-volume transactional workloads.
• Participate in rigorous peer code reviews covering correctness, maintainability, architectural boundaries, and performance.
• Maintain automated unit and integration tests across data, service, and application layers.
• Investigate and resolve complex issues across the full stack, including client interfaces, APIs, application layers, and SQL Server.
• Develop and maintain PowerShell scripts for automation, deployment support, and operational task management.
• Create and update technical documentation, including system specifications, interface definitions, and SOPs.
• Operate within strict enterprise change management processes, separation of duties, and high-availability (24/7) operational guidelines.

Required qualifications

• 5+ years of experience in applicable fields, with the expectation that an Associate’s or Bachelor’s degree is required for this experience level.
• Without an applicable degree, 7 years of experience is required.
• Direct work experience in Computer/Information Technology.
• Expert-level C# development using .NET 10 to build secure, high-performance, maintainable enterprise applications.
• Proven application of design patterns, SOLID, and clean architectural patterns in complex enterprise full-stack solutions.
• Strong RESTful API design and implementation, including middleware and authentication/authorization protocols such as OAuth2, OpenID Connect, and JWT, plus end-to-end API lifecycle management.
• Strong SQL Server skills, including relational design, query optimization, indexing strategy, execution plan analysis, and complex stored procedures.
• Full-stack experience across diverse client interfaces, including familiarity with modern web frontends (such as Blazor, Angular, or React) and foundational Windows desktop patterns.
• Experience using Microsoft Visual Studio for development, debugging, and testing.
• Experience with Microsoft Office’s large suite, including PowerPoint, Visio, and Project.
• Experience using SharePoint.
• Ability to work with other IT development professionals and support teams.
• Strong verbal and written communication skills, including the ability to explain technical concepts to both peers and external customers.

Contract details

• Job ID: 14436
• Type: Contract (one-year renewable)
• Location: Portland, OR (hybrid)
• Pay: $70.00 per hour
• Expected hours: 40.0 per week

Technologies you’ll work with

• C#, .NET 10, Clean Architecture, SOLID
• RESTful API, OAuth2, OpenID Connect, JWT
• SQL Server, SQL
• Angular, Blazor, React, WPF, WinForms
• PowerShell, Microsoft Visual Studio, Microsoft Office (PowerPoint, Visio, Project), SharePoint

Benefits

• 401(k)
• Dental insurance
• Health insurance
• Paid time off
• Vision insurance