Principal C#/.NET Software Development Engineer - SDK

Overview

Do you have a flair for building great SDKs that make common use cases easy, while keeping the SDK highly flexible for unknown scenarios? Do you like to stay ahead of the market and design with tomorrow's technologies in mind? In this role, you will be tasked with building software that works on both today’s existing systems and cutting‑edge technology. You’ll be partnered with equally passionate programmers on a dynamic, integrated team creating best‑in‑class .NET SDKs for WPF, WinUI, and .NET MAUI to support other developers building great apps on top of Esri’s geolocation systems.

We’re looking for someone with .NET development skills and proficiency in C# who’s interested in a truly collaborative experience, where they'll work closely with other developers across all the platforms we support. Propelled by Esri’s desire to incorporate the latest advances, our team takes pride in working with the latest technologies, building things right and designing for the future. Our SDKs are used by municipalities, major industries, utilities, retail businesses, emergency services, defense, and the military, so what you create will make a real difference in the world. If you’re smart, driven, and know how to get things done, we’ll give you the latest and best tools to do it.

Esri has a Relocation Assistance Program and can provide support with relocating to the Redlands, CA area for this position.

Responsibilities

• Design, develop and test modern APIs for ArcGIS Maps SDKs for .NET
• Build software components that follow industry‑standard design patterns and development methodologies
• Collaborate with API designers and developers throughout the development process across many teams
• Define user requirements; design and develop applications and APIs for both mobile and desktop
• Ensure that ArcGIS software meets real‑world usage scenarios
• Solve and articulate complex problems with application design, development, and user experiences
• Engage in technical discussions and knowledge sharing within the development team
• Stay up to date with the latest technologies, trends, and best practices

Requirements

• 5+ years of commercial software development experience
• Fluent in and passionate about C# and .NET
• Working knowledge of .NET client application development
• Familiarity with design patterns such as MVVM (Model‑View‑ViewModel)
• Understanding of asynchronous programming and multithreading in C#
• Experience with performance profiling and optimization techniques
• Ability to work closely with the team to build quality software in a constantly evolving environment
• Effective time management and organizational skills
• Strong problem‑solving skills and the ability to troubleshoot complex technical issues effectively
• Excellent written and verbal communication skills
• Excellent teamwork and collaboration skills to work effectively in a dynamic, integrated team environment
• Bachelor’s degree in computer science, engineering, mathematics, mapping, GIS, or related field

Recommended Qualifications

• Experience with .NET MAUI applications
• Experience with API design
• Knowledge of GIS/Esri software
• Master’s degree in computer science, engineering, mathematics, mapping, GIS, or related field

Total Rewards

Esri’s competitive total rewards strategy includes industry‑leading health and welfare benefits: medical, dental, vision, basic and supplemental life insurance for employees (and their families), 401(k) and profit‑sharing programs, minimum accrual of 80 hours of vacation leave, twelve paid holidays throughout the calendar year, and opportunities for personal and professional growth. Base salary is one component of our total rewards strategy. Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.

A reasonable estimate of the base salary range is $145,600–$241,280 USD.

About Esri

At Esri, diversity is more than just a word on a map. When employees of different experiences, perspectives, backgrounds, and cultures come together, we are more innovative and ultimately a better place to work. We believe in having a diverse workforce that is unified under our mission of creating positive global change. We understand that diversity, equity, and inclusion is not a destination but an ongoing process. We are committed to the continuation of learning, growing, and changing our workplace so every employee can contribute to their life’s best work. Our commitment to these principles extends to the global communities we serve by creating positive change with GIS technology. For more information on Esri’s Racial Equity and Social Justice initiatives, please visit our website here.

If you don’t meet all of the preferred qualifications for this position, we encourage you to still apply!

Esri is an equal opportunity employer (EOE) and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. If you need reasonable accommodation for any part of the employment process, please email [email protected] and let us know the nature of your request and your contact information. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this e‑mail address.

Esri Privacy: Esri takes our responsibility to protect your privacy seriously. We are committed to respecting your privacy by providing transparency in how we acquire and use your information, giving you control of your information and preferences, and holding ourselves to the highest national and international standards, including CCPA and GDPR compliance.

Requisition ID: 2026-3523

Available in: Remote Eligible, US

Job Category: Software Development and Engineering

Role Type: Individual Contributor

Experience Level: Senior Level