Top C# Jobs in Minneapolis, MN

Design, develop, and field high-performance Ground Control Station and C2 software using C++/Qt/QML and QGroundControl. Lead architecture and technical direction, mentor engineers, define APIs/ICDs, debug integration/latency issues, support field tests, implement post-mission debrief tools, and ensure interoperability with C2 standards.

Design, develop, test, and maintain scalable C#/.NET applications and RESTful APIs. Build data-driven platforms, implement CI/CD and DevOps practices, deploy containerized apps (Docker/Kubernetes) on AWS, troubleshoot production issues, and collaborate on architecture, code reviews, and observability improvements.

Design, develop, test, document, and implement C#/.NET applications per technical specifications. Interpret business requirements, produce architectural and technical documentation, create unit test plans and harnesses, estimate tasks, validate accessibility and secure coding, and collaborate with infrastructure/network/server teams to resolve application issues.

Develop and maintain C#/.NET applications and ETL processes using Pentaho and Oracle 11g. Work with XML, Excel/VBA, and TFS for data integration and automation. Collaborate with stakeholders, perform application development, and support BI/ETL solutions. Strong communication and local interview availability required.

Develop and maintain C#/.NET applications and ETL processes (Pentaho). Work with Oracle 11g, XML, Excel/VBA, Visual Studio and TFS. Participate in analysis, design, development, testing, integration. Strong communication skills required. Local candidates for phone and face-to-face interviews. Contract for 6+ months.

Develop and unit-test C++ applications on Unix/Linux using STL and multithreading. Work with SQL/Oracle databases. Support airline/crew network maintenance and scheduling. Deliver projects onsite in Minneapolis with strong customer satisfaction.

Lead full‑stack engineer responsible for designing, developing, testing, operating and maintaining cloud-native .NET applications. Provide technical leadership, design scalable microservices, implement CI/CD, secure SPAs, perform code reviews, and ensure operational reliability. Collaborate across product teams and apply Azure, Kubernetes, and modern design patterns to deliver financial solutions.

Lead the technical direction for integrating algorithms on the Prism Mapping platform, focusing on real-time signal pipelines and optimization strategies. Collaborate with teams to ensure robust clinical performance and timely delivery of new capabilities.

Lead the technical direction and architecture for the core infrastructure of the Prism Mapping platform, ensuring reliability and performance in a medical device environment. Mentor engineers and drive technical improvements while communicating complex decisions to stakeholders.

As a Senior Software Engineer, you'll develop signals and algorithm interfaces, collaborate with developers, optimize algorithms, and mentor engineers in a regulated environment.

Develop and maintain .NET Core trading systems for Linux with service-oriented architecture and multi-threaded processing. Implement async, lock-free structures and distributed systems, write unit and integration tests, optimize SQL queries, design data structures and algorithms, and work with communication protocols (SignalR, gRPC, HTTP). Use PostgreSQL, Docker, and AWS in the deployment stack.

Contribute to and optimize the performance of ClickHouse, assist with debugging, collaborate with teams, and engage with the open-source community.

Develop and optimize ultra-low-latency, high-performance trading infrastructure in modern C++. Implement and tune order execution, market data connectivity, multi-threaded systems, and risk modules. Profile and benchmark real-time systems, collaborate with quants and traders, and maintain robust, fault-tolerant continuous trading operations.

The Back End Software Engineer will design and build scalable services for a SaaS platform, collaborate with teams, and contribute to quality code and architecture discussions.

Lead design and delivery of complex backend features for a high-scale online banking platform. Own code from design to production, modernize legacy systems, develop microservices, design APIs, implement tests, ensure secure coding, use AI-assisted tools, troubleshoot issues, and document APIs while collaborating with product, QA, and front-end teams.

Design high-performance C++ libraries for automated PCB design challenges, mentoring peers and shaping technical direction while collaborating with experts in various fields.

Design and evaluate performance engineering tasks for AI training/evaluation. Optimize runtime, compilers, memory, CPU/GPU and concurrency. Produce documented solutions, evaluate AI-generated code, and build evaluation frameworks and scoring rubrics while collaborating with researchers and SMEs.

The C# / .NET Developer will design and maintain middleware applications, build Shopify integrations, and support a mobile app backend in a remote work environment.

The Software Engineer II will design, develop, and maintain secure software solutions, focusing on smart card personalization products and HSM firmware development, while ensuring alignment with security standards.

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.

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

Develop user interface components for ArcGIS Pro using C# and WPF, work in an agile team, and design software solutions for raster and imagery processing.

PrivateID seeks a Principal C++ Engineer with at least 10 years of experience to lead complex systems and scale their platform in a remote-first environment.

Remote backend C# developer to build and optimize a high-load spot-exchange matching engine. Improve performance and API throughput, implement business features, write unit and integration tests, work with .NET Core and PostgreSQL on AWS, and apply multithreading, async, and distributed systems concepts.

Lead technical direction for a major product domain, reduce architectural debt, mentor engineers, standardize AI-agent workflows, and design scalable backend solutions integrating LLMs and cloud services. Drive cross-team RFCs, cookbook standards, and adopt agentic AI tooling while balancing security, quality, and delivery.