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Top Senior Level C# Jobs in Seattle, WA

115+ Job Results
2 Days Ago
Seattle, WA
Remote
3,300 Employees
5-7 Years of Experience
3,300 Employees
5-7 Years of Experience
Information Technology • Security • Cybersecurity
As a Senior Software Engineer at Cloudflare, you will be instrumental in defining and building the future of D1, Cloudflare's first serverless database. You will enable developers to build full-stack applications and work on high-volume SaaS applications. Required skills include JavaScript, Typescript, and knowledge of modern programming languages like Go, Java, C#, Rust, or C++.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
5 Days Ago
Seattle, WA
Remote
10,000 Employees
130K-205K Annually
7+ Years of Experience
10,000 Employees
130K-205K Annually
7+ Years of Experience
Cloud • Information Technology • Sales • Security • Cybersecurity
Looking for a Sr. Software Engineer with 5+ years of experience to join the sensor engineering team. Responsibilities include developing cybersecurity features for the Windows Sensor, collaborating with multiple teams, building user interfaces, and deploying quality code to production.
6 Days Ago
Seattle, WA
2,700 Employees
159K-210K Annually
7+ Years of Experience
2,700 Employees
159K-210K Annually
7+ Years of Experience
eCommerce • Fintech • Payments • Software • Financial Services
Oversee the technical vision, strategy, and systems of the privacy engineering team. Design and implement data privacy-enhancing features, tooling, and mechanisms, ensuring compliance with relevant privacy regulations. Develop tech privacy procedures and guidelines. Work with cross-functional teams to build software for privacy. Collaborate with security teams. Design for technical scale and implement privacy systems through code.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+48 More
12 Days Ago
Seattle, WA
500 Employees
185K-230K Annually
5-7 Years of Experience
500 Employees
185K-230K Annually
5-7 Years of Experience
AdTech • Digital Media • eCommerce • Marketing Tech • Software
As a Senior Software Engineer, you will be responsible for designing, developing, testing, and deploying code to solve real-world problems. You will collaborate with other engineers and product managers to drive business value and create fast, scalable, and user-friendly applications. The role requires a minimum of 5 years of experience and expertise in full-stack software engineering.
Top Benefits:
401-K
401-K Matching
Company Equity
+53 More
19 Days Ago
Seattle, WA
Remote
200 Employees
7+ Years of Experience
200 Employees
7+ Years of Experience
Consumer Web • HR Tech
Looking for a dynamic Staff Engineer with 10+ years of .NET development experience to lead large-scale architecture initiatives and build Platform services at a fast-growing tech company. Must have expertise in developing on public cloud platforms and a track record of successful large-scale projects.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+14 More
4 Hours Ago
Seattle, WA
Remote
660 Employees
104K-172K Annually
7+ Years of Experience
660 Employees
104K-172K Annually
7+ Years of Experience
Consulting
Analyzing, designing, and developing innovative software solutions for clients using Microsoft Power Platform tools. Providing technical leadership, collaborating with colleagues and partners, and staying updated on emerging technology trends. Completing projects, overseeing team members, and demonstrating excellence in communication and project management.
Top Benefits:
401-K
Company Outings
Dedicated Diversity Inclusion Staff
+25 More
Yesterday
Seattle, WA
237,000 Employees
5-7 Years of Experience
237,000 Employees
5-7 Years of Experience
eCommerce
Seeking a System Development Engineer to build industry-leading solutions for customers. Will work across software, hardware, robotics, and telemetry. Responsible for product design, manufacturing, testing, and operations. Must have hands-on experience and be comfortable pushing boundaries for cost reduction and data storage durability.
Yesterday
Seattle, WA
7+ Years of Experience
7+ Years of Experience
Software
Design, develop, test, deploy, maintain and improve software. Manage individual project priorities, deadlines and deliverables. Focus on overall product quality and user experience. Take initiative and be responsible for technical solutions to data quality and workflow challenges.
2 Days Ago
Seattle, WA
148,000 Employees
134K-282K Annually
7+ Years of Experience
148,000 Employees
134K-282K Annually
7+ Years of Experience
Software
Principal Software Architect role at Microsoft's Cloud Hardware Analytics and Tools (CHAT) team. Responsibilities include developing architecture for internal tools, data pipelines, and reporting infrastructure. Required qualifications include a Bachelor's Degree in Computer Science and 6+ years of technical engineering experience in various programming languages like C, C++, C#, Java, JavaScript, Python.
4 Days Ago
Seattle, WA
403 Employees
156K-234K Annually
7+ Years of Experience
403 Employees
156K-234K Annually
7+ Years of Experience
AdTech • Cloud • Machine Learning • Mobile • Retail
Lead feature development, design, optimization, testing, and maintenance of software applications and solutions for internal and external end users.
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