c# Jobs in Seattle, WA

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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 10 days ago | Updated 2 hours ago

Software Engineer - Systems, Multiple Locations

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Come build community, explore your passions and do your best work at Microsoft. This opportunity will allow you to bring your aspirations, talent, potential - and excitement for the journey ahead. We're a company of learn-it-alls rather than know-it-alls and our culture is centered around embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. Does this sound like you? Learn more about our cultural attributes . As a Software
Posted 4 days ago | Updated 2 hours ago

Senior Software Engineer

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Intelligent Conversation and Communication Cloud (IC3) at Microsoft is developing the next generation of collaboration and communication products that will revolutionize both consumer and enterprise communications. Our products, including Teams and Azure Communication Services, integrate audio, voice and messaging communication modalities across multiple devices and platforms. As a Senior Software Engineer in IC3, you will be responsible for building frameworks and systems to monitor and mainta
Posted 14 hours ago | Updated 2 hours ago

Principal Software Engineering Manager

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Are you a Principal Software Engineering Manager interested in working on large-scale projects within one of Microsoft's most diverse divisions? Are you seeking creative challenges that deliver immediate results with your customers just down the hall? Do you aim to be central to the developer experience of the engineers and applied scientists building Microsoft's cutting-edge AI features, enhancing the productivity of engineering teams? If so, we have an opportunity for you. The ES365 org is re
Posted 9 days ago | Updated 2 hours ago

Software Engineer - Fullstack, Redmond

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Come build community, explore your passions and do your best work at Microsoft. This opportunity will allow you to bring your aspirations, talent, potential - and excitement for the journey ahead. We're a company of learn-it-alls rather than know-it-alls and our culture is centered around embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. Does this sound like you? Learn more about our cultural attributes . As a Software
Posted 4 days ago | Updated 2 hours ago

Software Engineer - Security, Multiple Locations

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Come build community, explore your passions and do your best work at Microsoft. This opportunity will allow you to bring your aspirations, talent, potential - and excitement for the journey ahead. We're a company of learn-it-alls rather than know-it-alls and our culture is centered around embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. Does this sound like you? Learn more about our cultural attributes . As a Software
Posted 4 days ago | Updated 2 hours ago

Principal Game Systems & Tools Engineer - Gaming AI

Microsoft Corporation

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Redmond, Washington, USA

Full-time

Are you an experienced game engineer with a passion for building core systems and empowering creators? Do you thrive at the intersection of engine design, interactive tooling, and gameplay innovation? At Xbox Gaming AI, we are exploring emerging technology trends to craft the next era of gaming. We are venturing beyond the horizon and charting a course forward with players and creators at the center. Our goal is to define the future of Xbox by advancing our mission of bringing joy and community
Posted 15 days ago | Updated 2 hours ago

Senior Software Engineer - Backend

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Are you passionate about building high-scale, reliable, and intelligent cloud services? The Microsoft Teams Core Services team powers the foundation of one of Microsoft's fastest-growing products, serving over 330 million users around the world. As part of our team, you'll help develop resilient infrastructure that supports hyper-scaling, powers expansion into specialized clouds, and upholds the service fundamentals of performance, availability, and security. You'll be part of a high-energy, col
Posted 5 days ago | Updated 2 hours ago

Core OS Software Engineer II

Microsoft Corporation

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Redmond, Washington, USA

Full-time

Storage is experiencing incredible innovations right now. The innovations of storage technologies and cloud connected devices are having a profound effect on every area of Microsoft's business. Storage devices are getting larger in capacity, faster in performance and intelligence at an astounding rate; our customers are expecting seamless experiences across devices and across local and cloud boundaries. Come and join the team that builds the platform and end user experiences for storage across W
Posted 2 days ago | Updated 2 hours ago

Software Development Engineer - Arena Content Engineering

Hasbro Inc.

•

Renton, Washington, USA

Full-time

At Wizards of the Coast, we connect people around the world through play and imagination. From our genre-defining games like Magic: The Gathering and Dungeons & Dragons to our growing multiverse, we continue to innovate and build new ways to foster friendship and connection. That's where you come in! The Magic: The Gathering Arena team is looking for a Software Engineer to provide technical expertise for our Content Engineering team. As a live game we ship new updates almost every week, and a
Posted 45 days ago | Updated 2 hours ago

Software Engineer

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

The Experience plus Devices (E+D) Growth team is seeking engineers to help accelerate the adoption of Copilot and Microsoft 365. Our team is uniquely positioned at the strategic epicenter of E+D for revolutionizing the productivity business by delivering embedded experiences across the Microsoft 365 suite (Teams, Outlook, Word, PowerPoint, Excel, etc.) that drive the growth of our company's cutting-edge generative AI solutions across the commercial and consumer spectrum. Our team tackles technic
Posted 4 days ago | Updated 2 hours ago

Software Engineer 2 - Xbox Graphics

Microsoft Corporation

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Redmond, Washington, USA

Full-time

The Xbox Graphics team is on the lookout for passionate Software Engineer 2 - Xbox Graphics eager to push the boundaries of state-of-the-art graphics systems, engineering systems, and device drivers. Our dynamic and diverse team operates at the cutting edge of hardware and software, delivering industry-leading game development technology. By collaborating closely with hardware engineers and top-tier game developers, we are shaping the future of graphics and game development. If you thrive on ma
Posted 9 days ago | Updated 2 hours ago

Senior Cloud Security Engineer - Magic Arena

Hasbro Inc.

•

Renton, Washington, USA

Full-time

At Hasbro, our mission is to entertain and connect generations of fans through the wonder of storytelling and exhilaration of play. We're looking for adventurous and curious people who want to explore, experiment, and innovate to come up with the best ideas. Our culture has inspired our diverse team of highly skilled, highly creative, and highly committed individuals for 100 years and we believe the best is yet to come. At Wizards of the Coast, we connect people around the world through play an
Posted 45 days ago | Updated 2 hours ago

Software Engineer II

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Dynamics 365 is Microsoft's suite of enterprise software that power many of the largest businesses in the world. The Customer Experience Applications Team delivers Dynamics 365 Customer Service Omnichannel that lets our customers run intelligent and highly scalable contact centers. We are building the next generation of our applications running on Azure that pull together Dynamics 365, Office 365 and a number of other Microsoft cloud services to deliver high value, complete, and predictive appli
Posted 14 hours ago | Updated 2 hours ago

Software Engineer II - Backend

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Microsoft Teams is the fastest-growing product in Microsoft's history, empowering over 330 million users globally to connect and collaborate. The Teams Core Services team builds and operates the foundational backend systems that power these experiences - from global user communication to secure tenant separation and cloud compliance. As part of our team, you'll help build reliable, scalable services that support hyper-growth, specialized cloud environments, and enterprise-grade collaboration sce
Posted 5 days ago | Updated 2 hours ago

Software Engineer II (Core AI)

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Core AI is at the forefront of Microsoft's mission to redefine how software is built and experienced. We are responsible for building the foundational platforms, services, programming models, and developer experiences that power the next generation of applications using Generative AI. Our work enables developers and enterprises to harness the full potential of AI to create intelligent, adaptive, and transformative software. The Agentic Core Services Team is responsible for building the cloud-na
Posted 2 days ago | Updated 2 hours ago

Principal Software Engineer

Microsoft Corporation

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Redmond, Washington, USA

Full-time

We are seeking a Principal Software Engineer to lead the design and development of an AI Platform at Microsoft Bing. This platform will power autonomous, reasoning-driven agents capable of dynamic task orchestration across services and data. In this role, you will: Architect and implement scalable, distributed systems foundational to our agentic platform. Lead technical vision and execution for building intelligent agents that act autonomously within a large-scale infrastructure. Optimize dat
Posted 14 hours ago | Updated 2 hours ago

Lead Engineer

Inabia Software & Consulting Inc.

•

Bothell, Washington, USA

Contract

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 that our Services meet the quality standards set by the Service Archite
Easy Apply
Posted 9 hours ago | Updated 5 hours ago

Sr. Application Security Engineer

SpaceX

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Redmond, Washington, USA

Full-time

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. APPLICATION SECURITY ENGINEER (STARLINK) At SpaceX we're leveraging our experience in building rockets and spacecraft to deploy Starlink, the world's most advanced broadband internet system. Starlink is the world'
Posted 42 days ago | Updated 2 hours ago

Software Engineer - AI/ML, Multiple Locations

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Come build community, explore your passions and do your best work at Microsoft. This opportunity will allow you to bring your aspirations, talent, potential - and excitement for the journey ahead. We're a company of learn-it-alls rather than know-it-alls and our culture is centered around embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. Does this sound like you? Learn more about our cultural attributes . As a Software
Posted 4 days ago | Updated 2 hours ago