Top C# Jobs in Philadelphia, PA

Review, rank, repair, and refactor AI-generated code to improve correctness, performance, and style. Provide detailed written feedback and edits for RLHF pipelines, converting expert judgments into signals used to train models. Work asynchronously as a remote 1099 contractor.

As an Automation Intern, you will assist in developing project documents, conceptual designs, and collaborating with cross-disciplinary teams for advanced facility projects in life sciences and food industries.

Develop and enhance software in C++ on Linux, create analytical tools for financial data, and collaborate with research analysts.

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

Develop and maintain infrastructure for market data feeds, focusing on performance and latency in a real-time financial environment.

The Power Systems Design Lead is responsible for developing detailed designs for electrical protection and control systems, mentoring interns, and collaborating with project teams using CAD software.

As a Senior Software Engineer, you will design and maintain core billing systems, lead technical discussions, mentor junior developers, and implement security measures while optimizing system performance.

As a Senior Software Engineer, you will develop software for high precision semi-conductor packaging equipment, focusing on motion control, design, and coding.

The Engineer will design, develop, and operate routing services, solving complex guidance scenarios and creating customizable navigation solutions for various clients.

Lead integration and reference-implementation work across Shield AI's Hivemind ecosystem, rapidly prototype hardware and simulator integrations, iterate with customer feedback, evaluate future technologies, and remediate technical debt. Deliver high-performance C++ solutions (Pilot/EdgeOS) and collaborate across product teams to transition prototypes into commercial applications.

The Senior Backend Engineer will design and maintain Azure SQL databases, optimize performance, automate deployments, and collaborate with teams on best practices and development.

The Senior Backend Engineer will develop backend solutions using .NET/C# and modern architecture, focusing on cloud services and databases, while managing client projects.

Seeking a Senior iOS Developer to design and build high-performance iOS applications. Requires 5+ years in iOS development with Swift and Objective-C, experience with REST services, and skills in data persistence frameworks. Occasional travel may be needed.

Design and develop a data platform for sports entertainment, deliver features, maintain code quality, and research new technologies in a collaborative environment.

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

Design, implement, and deliver production C++ software for execution, connectivity, and platform systems. Partner with stakeholders and safety committee, triage and resolve issues, and collaborate cross-functionally to ensure robust, low-latency, multi-threaded distributed systems operate reliably.

Design and build performance-critical components in C++. Require expertise in multithreaded systems, CI/CD pipelines, and GTK integration, as well as Python scripting.

Lead the software development for catastrophe modeling applications, translating scientific concepts into production-ready C++ code while collaborating with teams to enhance modeling capabilities.

Seeking a Senior Software Developer for developing high-performance distributed systems for media workflows, including video transcoding and content delivery.

The Software Engineer will analyze, rank, and improve AI-generated code, providing feedback for reinforcement learning in a remote role.

The role involves training large-language models to improve code generation, reviewing and editing AI-generated code, and providing feedback for reinforcement learning refinement.

Senior C++ Engineer responsible for developing high-performance image processing solutions, leading architecture discussions, and mentoring junior engineers in an Agile environment.

Develop backend services and APIs, improve existing solutions, create automated tests, and collaborate with the team while ensuring code quality and documentation.

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

Train large-language models to improve code quality by comparing snippets, providing feedback, and refining AI-generated code. Requires strong communication skills and attention to detail.