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Top C# Jobs in Seattle, WA

34+ Job Results
Yesterday
Seattle, WA
Remote
3,300 Employees
137K-198K Annually
Senior level
3,300 Employees
137K-198K Annually
Senior level
Information Technology • Security • Cybersecurity
The Senior Software Engineer will work on the Zero Trust desktop client, focusing on high-performance networking code for multiple desktop platforms. The role involves improving code quality, ensuring thorough documentation, and developing features in close collaboration with product managers, while addressing security and performance challenges.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
4 Days Ago
Seattle, WA
Remote
10,000 Employees
160K-240K Annually
Senior level
10,000 Employees
160K-240K Annually
Senior level
Cloud • Information Technology • Sales • Security • Cybersecurity
The role involves leading the design and development of automated testing architecture, collaborating with engineering and operations teams, and serving as a thought leader on quality assurance practices, specifically in the NG-SIEM Product Group.
4 Days Ago
Seattle, WA
Remote
10,000 Employees
135K-210K Annually
Senior level
10,000 Employees
135K-210K Annually
Senior level
Cloud • Information Technology • Sales • Security • Cybersecurity
The Senior Software Development Engineer in Test (SDET) will lead the design and development of automated testing frameworks and ensure the quality of the Next-Gen SIEM platform. Collaborating with engineering and operations teams, the ideal candidate will drive the end-to-end release automation and adhere to quality assurance best practices while navigating ambiguity and innovating solutions.
4 Days Ago
Seattle, WA
Hybrid
300,000 Employees
Senior level
300,000 Employees
Senior level
Consumer Web • eCommerce • Information Technology • Retail • Software • Analytics • App development
The Sr Software Engineer - iOS translates business requirements into program designs, writes maintainable code, mentors other engineers, and improves development processes. They focus on iOS development using Swift, integrating backend systems, and may work with data science technologies and AR. They are responsible for ensuring alignment with architecture standards and improving team efficiencies.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+34 More
4 Days Ago
Seattle, WA
500 Employees
270K-300K Annually
Expert/Leader
500 Employees
270K-300K Annually
Expert/Leader
AdTech • Digital Media • eCommerce • Marketing Tech • Software
As a Staff Full-Stack Engineer, you will design, develop, and improve code, own product features, collaborate with teams, create scalable applications, and mentor other engineers. You will leverage your extensive software engineering experience to solve complex problems and drive business value.
Top Benefits:
401-K
401-K Matching
Company Equity
+53 More
4 Days Ago
Seattle, WA
500 Employees
270K-300K Annually
Expert/Leader
500 Employees
270K-300K Annually
Expert/Leader
AdTech • Digital Media • eCommerce • Marketing Tech • Software
As a Staff Software Engineer at Rokt, you'll design, develop, and enhance software, focusing on customer impact while collaborating with teams to deliver complex product features. You'll mentor junior engineers, build scalable applications, and operate autonomously to solve problems in a dynamic environment.
Top Benefits:
401-K
401-K Matching
Company Equity
+53 More
4 Days Ago
Seattle, WA
500 Employees
215K-270K Annually
Senior level
500 Employees
215K-270K Annually
Senior level
AdTech • Digital Media • eCommerce • Marketing Tech • Software
As a Senior Software Engineer at Rokt, you will design, develop, and enhance code for high-impact products, own complex features, collaborate with teams, create scalable applications, and mentor engineers while focusing on customer impact.
Top Benefits:
401-K
401-K Matching
Company Equity
+53 More
4 Days Ago
Seattle, WA
Remote
1,485 Employees
180K-235K Annually
Senior level
1,485 Employees
180K-235K Annually
Senior level
Marketing Tech • Social Media • Software
As a Staff Software Engineer at Sprout Social, you'll lead the Customer Experience Engineering team in building tools for customer automation, collaborating with stakeholders to define visions and successful outcomes, improving processes, and ensuring high-quality software delivery.

Featured Jobs

4 Days Ago
Seattle, WA
2,700 Employees
108K-135K Annually
Mid level
2,700 Employees
108K-135K Annually
Mid level
eCommerce • Fintech • Payments • Software • Financial Services
Join Remitly as a Software Development Engineer to work on scaling funding and disbursement processing globally. Develop network management features, collaborate with global teams, and drive technical excellence. Requires 2+ years of experience and expertise in Java, JavaScript, AWS, and more.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+48 More
12 Days Ago
Seattle, WA
Remote
299 Employees
200K-250K Annually
Senior level
299 Employees
200K-250K Annually
Senior level
Cloud • Enterprise Web • Software
Design and implement enhancements to a metrics API and ingestion pipeline for a SaaS observability platform. Work on distributed systems and optimize storage solutions, ensuring scalability and reliability of the time series database. Collaborate across teams and mentor junior engineers.
Top Benefits:
401-K
Adoption Assistance
Commuter Benefits
+43 More
64 Employees
Mid level
Other
The SDET will focus on developing and implementing test automation processes and methodologies, create and maintain test environments, review technical requirements, and mentor other engineers. The role involves scripting automated tests, triaging bugs, and collaborating with developers and product managers throughout the software development lifecycle.
3 Days Ago
Seattle, WA
215 Employees
Junior
215 Employees
Junior
Consulting
The .NET Developer will have 2+ years of experience in AngularJS or similar frameworks, along with 3+ years designing web applications using HTML, JavaScript, and CSS. The role requires expertise in ASP.NET (MVC and Web API) using C#, along with strong problem-solving skills and a passion for quality through unit and integration testing.
4 Days Ago
Seattle, WA
403 Employees
156K-234K Annually
Senior level
403 Employees
156K-234K Annually
Senior level
AdTech • Cloud • Machine Learning • Mobile • Retail
As a Senior Backend Software Engineer, you will lead the feature development and optimization of software applications for internal and external users. You'll help scale the backend infrastructure, mentor other engineers, and oversee projects to enhance product performance and reliability.
4 Days Ago
Seattle, WA
403 Employees
179K-269K Annually
Expert/Leader
403 Employees
179K-269K Annually
Expert/Leader
AdTech • Cloud • Machine Learning • Mobile • Retail
Lead the development, design, optimization, testing, and maintenance of software applications for internal and external users. Contribute to scaling products and infrastructure, mentor engineers, and ensure the delivery of impactful projects in the backend domain.
4 Days Ago
Seattle, WA
167 Employees
100K-165K Annually
Senior level
167 Employees
100K-165K Annually
Senior level
Other
The Senior Controls Engineer will design complex automated systems, work with various PLCs, and integrate off-the-shelf components such as controllers and sensors. Responsibilities include power circuit design, engineering analysis, troubleshooting automation systems, and maintaining relationships with clients and vendors.
4 Days Ago
Seattle, WA
Senior level
Senior level
Big Data • Software
As a Senior Full Stack Software Engineer at Databricks, you will develop the Data Intelligence Platform, designing user experiences, managing data workflows, and building user interfaces, while ensuring robust product scalability and customer value.
4 Days Ago
Seattle, WA
250 Employees
150K-170K Annually
Mid level
250 Employees
150K-170K Annually
Mid level
eCommerce • Software • Analytics • Business Intelligence • Consulting • Automation
As a Software Development Engineer II at Stackline, you will design, build, maintain, and improve software products and data-collection services. Responsibilities include coding, testing, debugging, mentoring junior engineers, enhancing software systems, and optimizing processes to scale systems and ensure reliability.
Top Benefits:
401-K
401-K Matching
Company Equity
+30 More
4 Days Ago
Seattle, WA
250 Employees
150K-170K Annually
Mid level
250 Employees
150K-170K Annually
Mid level
eCommerce • Software • Analytics • Business Intelligence • Consulting • Automation
Design and implement stable and performant SaaS products utilizing frontend and backend technologies. Own a complex set of internal/external services and data sets. Execute full SDLC for APIs, UIs, applications, and infrastructure.
Top Benefits:
401-K
401-K Matching
Company Equity
+30 More
4 Days Ago
Seattle, WA
325 Employees
140K-190K Annually
Junior
325 Employees
140K-190K Annually
Junior
Big Data • Cloud • Software
Software Engineers at Qumulo build and maintain the modern distributed storage engine for on-premises and cloud products, contributing to feature development, testing, and debugging. They collaborate in improving SDLC processes and implement both customer-facing and internal features with a focus on performance and reliability.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+18 More
4 Days Ago
Seattle, WA
375 Employees
162K-180K Annually
Mid level
375 Employees
162K-180K Annually
Mid level
Gaming • Software • Virtual Reality
The role involves developing test automation tools for Pokémon Go, implementing end-to-end test plans, and collaborating with multiple teams to ensure software quality. Key responsibilities include building and extending scalable test frameworks, mentoring junior staff, and integrating test automation into deployment pipelines.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+14 More
5 Days Ago
Seattle, WA
375 Employees
151K-167K Annually
Senior level
375 Employees
151K-167K Annually
Senior level
Gaming • Software • Virtual Reality
As a Senior Mobile Native Software Engineer, you'll design and implement cross-compiled native code for iOS and Android, optimize mobile performance, and engage in code reviews and troubleshooting. You'll collaborate with teams to ensure high-quality software meets user needs.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+14 More
12 Days Ago
Seattle, WA
64 Employees
Senior level
64 Employees
Senior level
Other
As a Software Development Engineer at FreeTime, you will design and deliver consumer software products for kids and parents, driving large-scale features from inception to delivery. Your role involves software architecture, object-oriented programming, and leveraging your deep knowledge of mobile technologies to innovate and enhance user experiences.
12 Days Ago
Seattle, WA
64 Employees
Senior level
64 Employees
Senior level
Other
As a Software Development Manager, you will lead a team of engineers in the design, development, testing, and operations of the company's platform, focusing on customer experience while managing the technical aspects and project outcomes. You are expected to engage in hands-on development, provide mentorship, and ensure high-quality deliverables.
12 Days Ago
Seattle, WA
64 Employees
Mid level
64 Employees
Mid level
Other
The SDET will be responsible for testing implementations of API Gateways and related application infrastructure, working collaboratively with internal developers and external partners to debug and refine applications. Experience in creating test plans and test cases is also required, along with 4-6 years in infrastructure testing.
12 Days Ago
Seattle, WA
64 Employees
Senior level
64 Employees
Senior level
Other
The QA Automation Lead will be responsible for leading a technical team in automation and infrastructure testing. The role requires hands-on testing and coding, particularly with APIs and cloud technologies, along with developing automation frameworks and ensuring robust CI/CD practices. Strong leadership, stakeholder engagement, and a deep understanding of testing processes are essential.
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