Top C# Jobs

Design, develop, and maintain high-performance C++ cloud-based ad-serving systems. Own software architecture, optimize algorithms, deploy distributed systems on Linux, use Snowflake and Aerospike, review code, mentor engineers, collaborate with QA and stakeholders, and support variable schedules.

Develop, maintain, and deploy C++-based cloud and distributed ad-serving systems on Linux. Work on server-side components, database integrations (Snowflake, Aerospike), networking, performance optimization, testing, code review, and technical documentation. Collaborate with QA and stakeholders, follow SDLC best practices, troubleshoot production issues, and occasionally work nights/weekends.

The role involves building and supporting production-level trading systems in C++ for credit and rates products, collaborating with traders and quantitative researchers.

Build and scale high-performance, distributed ad-serving systems that process billions of auctions. Design data- and model-driven features, optimize algorithms and architectures for cost and performance, extend observability, participate in on-call rotations, and produce systems documentation and playbooks.

Design, build, and scale Buyercloud ad-serving systems that handle billions of auctions. Implement data- and model-driven features, optimize performance and architecture to reduce cloud costs, extend observability, participate in on-call rotations and incident response, and produce systems documentation and playbooks while collaborating with distributed teams.

Design, build, and scale low-latency ad-serving systems and data/model-driven features. Optimize algorithms and architectures for performance and cloud cost, extend observability, participate in on-call rotations, and produce runbooks and documentation.

Build and scale Buyercloud ad-serving systems that process billions of auctions daily. Design data- and model-driven features, optimize performance and cost, extend observability, participate in on-call rotations, produce documentation and playbooks, and support production incidents.

Design, develop, and optimize high-performance trading applications, maintain real-time systems, and analyze complex technical problems. Collaborate with teams and ensure software quality standards.

Implement and integrate mortgage prepayment models into the firm's C++ analytics library. Deliver production-grade, performant, modular code with comprehensive unit/integration tests, API integration, versioning, and documentation. Collaborate with quants, model validation, business, and technology teams to ensure backward compatibility and operational readiness.

Design, implement, test, and deploy high-performance C++ APIs exposing a mortgage analytics quantitative library for interest rate modeling, prepayment/default analysis, derivative valuation, hedging, and forecasting. Improve performance, reliability, and usability of the library and collaborate with business, model development, validation, and IT teams.

Design, implement, and optimize high-performance C++ APIs exposing a mortgage analytics library for interest rate modeling, prepayment/default analysis, derivative valuation, hedging, and forecasting. Collaborate with business, model development, validation, and IT; improve library performance, safety, reliability, and usability; deploy and test production code.

Implement mortgage prepayment models in production-grade C++ within the firms analytics library. Ensure performance, API integration, tests, versioning, documentation, and collaboration with business, model development, validation, and technology teams.

Software Engineers at Citadel develop, maintain, and support high-performance trading platforms, focusing on custom software solutions and system stability.

Software Engineers at Citadel develop software solutions for trading platforms, optimizing performance and functionality, and support trading activities.

The Senior Staff Software Development Engineer will architect and build products for Zscaler's Workload Security, develop eBPF-based firewalls, write efficient C/C++ code, and design distributed system components.

Design and develop low latency, high-performance trading systems. Optimize code and solutions for hardware efficiency, ensuring seamless application integration.

The Staff Software Development Engineer will enhance core systems, collaborate with engineering teams, define software specifications, and mentor junior engineers.

The C++ Engineer will design, build, and support FreeWheel's video advertising platform, handle the software development lifecycle, and collaborate with stakeholders.

FreeWheel seeks a C++ Engineer to design, build, and support its video advertising platform, responsible for the software development lifecycle and collaborating with project stakeholders.

The Senior Software Engineer develops and maintains Sports Trading applications using .NET and SQL Server, enhancing existing functions and providing technical guidance.

The Senior Software Engineer will design, develop, and maintain scalable backend services and APIs, working with cross-functional teams to improve cancer care through technology and data solutions.

As a Software Development Engineer, you will create high-performance Linux software components, ensure system reliability, collaborate with teams, and design security features for containers in cloud environments.

The Market Data Engineer will design and implement high-performance market data systems, focusing on trading infrastructure, performance optimization, and system resiliency.

Develop and maintain custom options valuation and risk-management systems. Collaborate with traders, risk managers, and quants to gather requirements, design solutions, implement high-performance code, troubleshoot issues, document models and tests, and improve scalability, accuracy, and performance of pricing systems.

As a C++ Software Engineer, you will optimize performance for latency-critical systems, collaborate with traders and quants, and ensure code correctness in a fast-paced environment.