Software Engineer - III

Kval Inc. is hiring a Software Engineer - III to take end-to-end ownership of components in KvalCAM, working primarily in a C# WPF application with database, testing, and debugging responsibilities.

Responsibilities

• Own defined components of KvalCAM from specification through tested, shipped production code
• Write clean, testable C# that follows existing codebase patterns
• Build and maintain automated tests, including regression tests
• Work in the WPF application layer built on Prism and ReactiveUI
• Contribute to PostgreSQL work including schema changes, queries, and migrations
• Debug and troubleshoot across the application, with gradual expansion into the machine control layer
• Document what you build
• Learn Kval’s controls environment and machine-specific edge cases
• Participate in iterative development and team planning
• Use approved AI-assisted development tools (for example, IDE integrations) for coding tasks under engineer supervision
• Follow all safety protocols and PPE requirements

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent practical experience)
• 4 to 7 years of professional software development experience
• Strong production C# background with automated testing and demonstrated ownership of non-trivial components
• Experience building desktop applications in C#
• Strong relational database and SQL skills, including schema design and migrations
• Experience contributing to a large, long-lived codebase by extending established patterns rather than replacing them
• Experience carrying work through testing and release personally rather than handing off to another group
• Clear written and verbal communication; ability to work independently without close supervision
• Ability to commute daily to the facility by the start date (company does not cover relocation or interview travel costs)

Preferred Qualifications

• Experience on a small engineering team where engineers own work across the full lifecycle
• Experience with industrial automation, machine controls, CAD/CAM, or embedded systems
• Computational geometry or tool-path generation background
• Production experience with WPF and MVVM, including view model design, data binding, and dependency injection
• Production experience with Prism (or a comparable composite application framework)
• Production experience with ReactiveUI, Rx.NET, or another reactive framework
• Rust experience welcome but not required (tool-path engine is written in Rust)
• F# experience or functional programming background in another language
• Production experience with PostgreSQL
• Experience with systems that operate offline or with intermittent connectivity
• Build and release scripting experience, including automated builds, packaging, and installers

Tech Stack

• C#, WPF, Prism, ReactiveUI, Rx.NET, MVVM
• PostgreSQL, SQL
• Rust, F#
• CAD/CAM

Benefits

• 401(k) 4% match
• Employee assistance program
• Health insurance
• Paid time off
• Referral program

Compensation & Location

• Location: Petaluma, CA (onsite)
• Pay: USD $100,000 - $150,000 per year
• Work style: In person