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Top C# Jobs in Seattle, WA

412+ Job Results
3 Days Ago
2 Locations
Remote
1,500 Employees
137K-189K Annually
Mid level
1,500 Employees
137K-189K Annually
Mid level
Artificial Intelligence • Fintech • Machine Learning • Social Impact • Software
As a software engineer in the Home Lending team, you'll be responsible for expanding Upstart’s home equity line of credit product. This role involves partnering with cross-functional teams to deliver features across various platforms and enhancing the existing codebase. You’ll focus on improving product metrics while leveraging Ruby, Kotlin, React, AWS, and other technologies.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+56 More
4 Days Ago
United States
Remote
708 Employees
Senior level
708 Employees
Senior level
Fintech • News + Entertainment • Software • Database • Financial Services
A Senior Software Engineer at Reorg will design, build, and support enterprise-grade applications within the data technology team, utilizing C# and .NET technologies. Responsibilities include technical leadership, API development, ensuring performance, compliance with security standards, and fostering a culture of continuous improvement.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+40 More
4 Days Ago
United States
Remote
900 Employees
Entry level
900 Employees
Entry level
Consumer Web • eCommerce • Enterprise Web • Events • Sports
SeatGeek is looking for Software Engineers to join their R&D team. Responsibilities include running a modern architecture, shipping code to production, solving performance problems, building user interfaces, and evaluating new technologies. The tech stack includes Python, Go, C#, .NET Core, Postgres, Redis, Elasticsearch, AWS, Gitlab, React+Typescript, Swift, and Kotlin.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+57 More
5 Days Ago
United States
Remote
1,810 Employees
174K-232K Annually
Senior level
1,810 Employees
174K-232K Annually
Senior level
Cloud • Fintech • Information Technology • Machine Learning • Software • App development • Generative AI
As a Principal Software Engineer, you will define application architecture, develop and optimize cloud-based backend services, mentor junior engineers, and collaborate across teams to deliver enterprise solutions. You will also evaluate new technologies and ensure high-quality releases while driving innovation within the product suite.
Top Benefits:
401-K
401-K Matching
Child Care Benefits
+61 More
5 Days Ago
US
Remote
3,900 Employees
168K-240K Annually
Senior level
3,900 Employees
168K-240K Annually
Senior level
Cloud • Information Technology • Security • Software • Cybersecurity
As a Senior Software Engineer, you will work on the Zero Trust desktop client, developing high-performance networking code across multiple desktop platforms while ensuring high code quality, testability, and documenting foundations. You'll need strong expertise in Windows internals and networking protocols, and collaborate closely with cross-functional teams to implement impactful features.
Top Benefits:
401-K
Adoption Assistance
Child Care Benefits
+60 More
7 Days Ago
United States
Remote
400 Employees
140K-175K Annually
Senior level
400 Employees
140K-175K Annually
Senior level
Fintech • Insurance • Machine Learning • Other • Analytics • Automation
As a Senior Backend Engineer, you will lead back-end development initiatives, create and maintain server-side APIs, improve system health, collaborate with product teams, mentor fellow engineers, and enhance operational stability by producing high-quality, modular software.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+49 More
8 Days Ago
United States
Remote
432 Employees
Senior level
432 Employees
Senior level
Software
The Senior Software Developer will enhance HCSS products, analyze and improve existing database schema, implement significant features, mentor junior developers, and ensure high-quality service by leading code reviews and promoting best practices within a collaborative development team.
Top Benefits:
401-K
401-K Matching
Company Equity
+44 More
10 Days Ago
United States
Remote
299 Employees
200K-250K Annually
Senior level
299 Employees
200K-250K Annually
Senior level
Cloud • Enterprise Web • Software
As a Member of Technical Staff at Chronosphere, you will design and implement enhancements to the metrics API and ingestion pipeline, focusing on distributed systems and data storage challenges. Your role includes collaborating with cross-functional teams, mentoring peers, and optimizing the reliability and performance of the storage engine.
Top Benefits:
401-K
Adoption Assistance
Commuter Benefits
+45 More
11 Days Ago
United States
Remote
300 Employees
133K-170K Annually
Mid level
300 Employees
133K-170K Annually
Mid level
Healthtech • Insurance
As a Software Developer II, you will support internal applications, modernize systems, and apply engineering principles to design, develop, test, and maintain software. You'll ensure high-quality code delivery, collaborate with various teams, provide maintenance support, and seek automation opportunities.
Top Benefits:
401-K
401-K Matching
Company Outings
+38 More
13 Days Ago
USA
Remote
357 Employees
15-150 Annually
Entry level
357 Employees
15-150 Annually
Entry level
Artificial Intelligence • Information Technology • Internet of Things
As an AI Tutor - Coding, you'll train and assess AI models, evaluate AI-generated code, solve coding problems, and create summaries of coding solutions. The role focuses on improving AI efficiency while allowing for professional growth in AI skills.
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