Top Senior C# Jobs

Develop software and enhance systems in C++ on Linux, while collaborating with analysts and engineers to create data processing tools.

Design, build, and operate scalable .NET/C# applications and integrations for Private Wealth. Own end-to-end delivery, write well-tested code, optimize data and queries, troubleshoot production issues, mentor junior developers, and drive platform modernization and CI/CD improvements.

Build and maintain scalable, cloud-native APIs using .NET. Enhance core platform components, lead architecture and testing discussions, optimize telemetry and performance, collaborate cross-functionally, conduct code reviews, and mentor team members.

As a C++ Software Engineer, you'll develop market data infrastructure, enhance trading systems' performance, and collaborate with researchers to improve trading strategies.

Contribute to high-performance, real-time applications processing critical financial data. Collaborate with teams, develop clean applications, and maintain testing strategies.

As a Displays Software Engineer, you'll design and build real-time user interface applications for automated aircraft systems, ensuring safety and usability across platforms.

Develop and support software tools for chip design and verification, optimize workflows, work collaboratively to create high-performance software.

Develop and support full-stack applications, collaborate with stakeholders, mentor junior teams, and stay updated on modern technology trends.

As a Senior Full-Stack C#/.NET Engineer, you will fork and set up existing applications, implement architectural adjustments, and ensure deployment in Azure. The role requires close collaboration with stakeholders and troubleshooting legacy code.

The position involves building and optimizing automated trading infrastructure, developing trading algorithms, and creating scalable applications in a team environment.

Develop and optimize automated trading infrastructure, collaborate with Traders and Quants on trading algorithms, create scalable multi-tiered applications.

You will develop and maintain components of the LLVM based toolchain, collaborating with the community while ensuring platform-specific optimizations and tests.

The Senior Software Engineer will develop next-gen wafer inspection tools, manage the software lifecycle, participate in design reviews, and troubleshoot products at customer sites. Responsibilities include multi-threading programming, GUI design with .NET, and collaboration across teams.

Design, develop, and deploy web and cloud applications using .NET, C#, Azure, Angular, React, and related technologies. Collaborate with clients to gather requirements, define goals, and recommend solutions. Participate in Agile/Scrum planning, code reviews, mentoring, testing, and DevOps practices. Explore AI-assisted development tools and help establish effective AI workflows. The role involves continuous learning, client engagement, and delivery of enterprise software and AI automation solutions.

Design, develop, and enhance a scalable loan origination system. Build accessible user-facing features, APIs, microservices, and resilient distributed systems using .NET, C#, and Azure. Collaborate with architecture, product, design, and engineering teams; improve performance, availability, monitoring, security, and deployment automation. Work with databases, containers, messaging, CI/CD, and cloud-native architectures.

Develop and productize mission-focused software for deployment across Department of Defense environments. Responsibilities include removing customer-specific dependencies, abstracting configurations, building authorization and key-management interfaces, and supporting Java, C++, cryptography, encryption libraries, and OpenBao services. The role also involves migrating code across security environments, applying software best practices, testing, defect resolution, project planning, and collaboration with technical teams and clients.

Develop and maintain modular software tools and platforms for interactive LEGO experiences using C#/.NET, AvaloniaUI, and Python. Collaborate cross-functionally, improve developer toolchains and automation pipelines, ensure quality through code reviews and automated testing, contribute to architecture, integrate cloud and backend services, and mentor junior engineers. The role emphasizes ownership, scalability, security, data privacy, agile practices, and continuous delivery.

Design, build, and maintain web pages and web applications end-to-end. Coordinate with other development teams (D365 CRM, D365 Finance & Ops, Azure, mobile, MFA). Enhance and support multiple systems including Client Portal, Payroll Processing, SharePoint, Data Factory, and Integration Services. Gather and document requirements, participate in usability testing, optimize code for performance and reliability, and troubleshoot issues while collaborating with stakeholders.

Develop and maintain C#/.NET applications. Requires 5+ years C# experience plus knowledge of C/C++, VB, ActiveX, COM objects, and IPC. MATLAB experience is a plus. Strong communication, organization, teamwork, and a relevant bachelor's degree required.

Design, extend, and operate enterprise-scale Ceph clusters and core subsystems in C++; optimize performance, implement multi-site DR, integrate with Kubernetes and CI/CD, build automation, observability, encryption/KMS, and maintain production-grade SOPs and documentation.

Build and enhance an exam development platform using Angular front-end and C# backend. Collaborate with product and design teams, ensure performance and responsive UX, follow CI/CD and automated testing best practices, perform code reviews, troubleshoot issues, mentor junior developers, and incorporate improvements including AI/ML retrieval-based solutions.

Design, develop, test, maintain, and support full-stack business applications using .NET, C#, Angular, APIs, integrations, and SQL Server. Translate backlog requirements into reliable solutions, troubleshoot production defects, improve performance, reduce technical debt, participate in reviews and testing, support releases, document systems, and mentor junior and mid-level engineers. Collaborate with product, architecture, QA, DevOps, infrastructure, DBA, and business teams in a hybrid Austin environment.

Design, develop, test, and optimize high-fidelity C++ emulators for SPARC-based flight computers and mission-critical space flight hardware. Integrate emulation capabilities into flight and ground software workflows, meet demanding performance requirements, document and test solutions, and contribute to CI/CD pipelines. The role requires collaboration with architects, engineers, and customers in a mission-focused environment, with potential DoD clearance eligibility.

The Senior Software Engineer will design, develop, and maintain software applications using Python, C#, C++, and Linux, while collaborating with cross-functional teams to optimize performance and user experience.

Design and develop software for ROVs, AUVs, and subsea tooling on Windows and Linux. Handle requirements, design, implementation, and testing; maintain revision control; prepare technical procedures; mentor junior engineers; serve as technical lead on projects; collaborate across divisions and communicate with technical and nontechnical stakeholders. Up to 25% onshore travel with potential occasional offshore travel.