C# Jobs in Seattle, WA

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Staff Software Engineer (.NET, C#)

Visa Inc.

•

Bellevue, Washington, USA

Full-time

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhe
Posted 54 days ago | Updated 5 hours ago

Senior Software Engineer (Cloud Native - C#/.NET)

Copeland

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Remote or Kennesaw, Georgia, USA

Full-time

About Us We are a global climate technologies company engineered for sustainability. We create sustainable and efficient residential, commercial and industrial spaces through HVACR technologies. We protect temperature-sensitive goods throughout the cold chain. And we bring comfort to people globally. Best-in-class engineering, design and manufacturing combined with category-leading brands in compression, controls, software and monitoring solutions result in next-generation climate technology th
Posted 3 days ago | Updated 6 hours ago

Early in Career Windows Software Engineer (C++, C#)

Rockwell Automation

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Remote or Phoenix, Arizona, USA

Full-time

Rockwell Automation is a global technology leader focused on helping the world's manufacturers be more productive, sustainable, and agile. With more than 28,000 employees who make the world better every day, we know we have something special. Behind our customers - amazing companies that help feed the world, provide life-saving medicine on a global scale, and focus on clean water and green mobility - our people are energized problem solvers that take pride in how the work we do changes the world
Posted 15 days ago | Updated 6 hours ago

Commodities Application Developer (C#, React, TypeScript) - AVP - Houston (Hybrid)

Citi

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Remote or Houston, Texas, USA

Full-time

The role is for a C# developer who will be working within a small team on Commodities Marking and Market Discovery Platform used by traders across the regions. We offer the opportunity to grow professionally, learn new technologies and gain business knowledge. Responsibilities: Develop the Platform using C# with an opportunity to learn React during WPF to React migrationWork directly with quants and traders to specify requirements and own deliveries and 3rd line support to provide daily communi
Posted 22 days ago | Updated 5 hours ago

Sr. Software Developer - C#/WPF for UI/UX Development

Esri

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Remote

Full-time

Overview This is a great opportunity to join a fast-paced agile team that works with the latest technologies and patterns, asynchronous programming, and MVVM to design and develop next-gen Esri software. We are focused on designing and developing solutions for working with raster and imagery in ArcGIS Pro. Our tools support complex real-life workflows in 2D & 3D for raster / image processing and analysis. If you are excited about user interaction and user interface development, then join our cr
Posted 60+ days ago | Updated 5 hours ago

Senior Software Engineering (RPA - Automation Anywhere 360 & C# .NET)

Mastercard

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Remote or O'Fallon, Missouri, USA

Full-time

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest po
Posted 60+ days ago | Updated 5 hours ago

Senior .NET Developer

VDart, Inc.

•

Seattle, Washington, USA

Contract, Third Party

Title :: .Net Full stack Developer Location :: Bellevue, WA (Initial 3 weeks Remote) Contract Coding interview Must Skills : React.js, .net, C#, Microservices Job description The candidate should have experience in both frontend and backend development with a strong understanding of modern web technologies frameworks and best practices Key Responsibilities Design develop and maintain both frontend and backend components of web applications Must have Python NET Decent experience with React Ang
Easy Apply
Posted 13 days ago | Updated moments ago

LTE Test Engineer

Akshaya Inc

•

Bothell, Washington, USA

Third Party, Contract

Role: LTE Test Engineer Location: Bothell, WA (Onsite) Description: Overview: The subject matter expert (SME) will work on a team of engineers performing Certification and Support for services. The primary responsibility for the individual is to analyze requirements, identify gaps in test coverage, update and execute manual and automated testing efforts, effectively and efficiently test the system applications and the related areas, and perform regression testing. The team s goal is to ensure th
Easy Apply
Posted 17 hours ago | Updated 16 hours ago

Dynamics 365 Developer

Ziply Fiber

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Seattle, Washington, USA

Full-time

At Ziply Fiber, our mission is to elevate the connected lives of our communities every day. We are delivering the fastest home internet in the Northwest, with a focus on areas traditionally underserved by mainstream internet companies. And as our state-of-the-art fiber network expands in WA, OR, ID and MT, so does our need for team members who can help us grow and realize our goals. We may be building internet, but we are reaching real people. We strive to build relationships and provide custom
Easy Apply
Posted 24 days ago | Updated 24 days ago

Backend Java Developer

TetriQ Solutions LLC

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Bellevue, Washington, USA

Third Party, Contract

Job Title: Senior Backend Engineer. Location: Bellevue, WA (Onsite) (Local candidates highly preferred) Employment Type: Long term Contract Interview: Coding test+ Interview Note: H1B, (on W2) can apply. About the Role: We are seeking Senior Backend Engineers to design and develop a cloud-based supply chain data platform. The role requires expertise in backend development, cloud automation, and modern infrastructure technologies fa build scalable, high-performance solutions. Key Responsibi
Easy Apply
Posted moments ago

Software Engineer -- Microsoft Substrate Security Team

Microsoft Corporation

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Redmond, Washington, USA

Full-time

The Substrate Security team is the dedicated security organization responsible for safeguarding the Microsoft Substrate platform-ensuring it is the most secure collaboration platform in the world. The team drives security posture improvements across engineering, architecture, and operations by influencing and empowering partner teams, building secure-by-default capabilities, and addressing transitive risks across the Substrate collective. Our mission spans proactive hardening, detection, contain
Posted 3 days ago | Updated 5 hours ago

Senior Software Engineer - Gaming

Microsoft Corporation

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Redmond, Washington, USA

Full-time

Come help build the next evolution in Xbox Game Compatibility. Join the Xbox Platform team and leverage your system engineering experience to advance the future of Game Preservation. Your work will help identify and outline the specific requirements and technical boundaries for preserving game content, build scalable emulation solutions, and ensure a fun gameplay experience for all players. Our technology solutions are a critical part of enabling the Xbox goal of allowing players to continue to
Posted 10 days ago | Updated 5 hours ago

Software Development Engineer 3 (Unreal Engine)

Kforce Technology Staffing

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Redmond, Washington, USA

Contract

RESPONSIBILITIES: Kforce has a client in Redmond, WA that is seeking a Software Development Engineer 3 responsible for improving and fixing issues impacting game stability and developer workflows, including data validation, test automation and Unreal Engine upgrade integrations. Responsibilities: * Expand and maintain data validation systems * Implement data validation telemetry * Improve validation performance * Add new validators and improve content creator workflows * Engine stability and m
Posted 7 days ago | Updated 1 hour ago

Principal Software Engineer - Security for Co-Pilot

Microsoft Corporation

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Redmond, Washington, USA

Full-time

Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft's mission and bold ambitions to ensure that our company and industry i
Posted 3 days ago | Updated 5 hours ago

Senior Software Engineer - Microsoft Teams Core Services

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Are you interested in working for one of the most exciting teams at Microsoft? Then look no further than Microsoft Teams Core Services team. As a Senior Software Engineer, you will be building secure, resilient, highly available, highly scalable services and systems that leverage state-of-the-art technologies to deliver the next gen collaboration and teamwork experiences. The Core Services team is responsible for the foundational services of Microsoft Teams serving billions of calls per day to
Posted 4 days ago | Updated 5 hours ago

Senior Software Engineer - Windows Fundamentals

Microsoft Corporation

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Redmond, Washington, USA

Full-time

The Windows + Devices Fundamentals (W+D) team is responsible for the reliability, performance, battery life and sustainability of Windows devices. Our work touches the full stack of hardware and OEM partners, the operating system as well as the application layers to protect, manage and improve the Fundamentals of the Windows ecosystem. We are seeking a Senior Software Engineer - Windows Fundamentals to help us shape the next wave of innovations to optimize battery life on Windows devices. As we
Posted 11 days ago | Updated 5 hours ago

Software Engineer II - Microsoft Teams Core Services

Microsoft Corporation

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Redmond, Washington, USA

Full-time

Are you interested in working for one of the most exciting teams at Microsoft? Then look no further than Microsoft Teams Core Services team. As a Software Engineer II, you will be building secure, resilient, highly available, highly scalable services and systems that leverage state-of-the-art technologies to deliver the next gen collaboration and teamwork experiences. The Core Services team is responsible for the foundational services of Microsoft Teams serving billions of calls per day to powe
Posted 8 days ago | Updated 5 hours ago

Software Engineer II-PowerPoint

Microsoft Corporation

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Redmond, Washington, USA

Full-time

Are you passionate about building services that operate at massive scale? Do you thrive on solving complex engineering challenges and delivering elegant, high-impact solutions? Come join the PowerPoint team and help shape the future of how billions of people communicate their ideas. We're looking for engineers who thrive on running services at scale, care deeply about performance, reliability, and security, and are eager to ship high-quality code that makes a global impact. You'll join a collab
Posted 10 days ago | Updated 5 hours ago

Senior Software Engineer - ES365 AI

Microsoft Corporation

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Redmond, Washington, USA

Full-time

Our AI team is a part of the larger ES365 (Microsoft 365 Engineering Systems) Team which owns the tools and systems used by the thousands of Microsoft developers who innovate in the Office and Substrate codebases. This includes everything from source control and check-in experience to build, validation, and deployment automation. This positions us perfectly to leverage AI to impact Microsoft's overall productivity and product velocity. The ES365 AI team is 100% focused improving dev productivit
Posted 3 days ago | Updated 5 hours ago

Sr. Software Engineer

Visa Inc.

•

Bellevue, Washington, USA

Full-time

Company Description As the world's leader in digital payments technology, Visa's mission is to connect the world through the most creative, reliable and secure payment network - enabling individuals, businesses, and economies to thrive. Our advanced global processing network, VisaNet, provides secure and reliable payments around the world, and is capable of handling more than 65,000 transaction messages a second. The company's dedication to innovation drives the rapid growth of connected commer
Posted 11 days ago | Updated 5 hours ago