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C# Developer Jobs

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C#/C++ Software Developer (Quoting)
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Join SIG's Options Trading desk in Sydney as a C#/C++ Software Developer. Design and optimize high-performance, data-intensive market making systems. Collaborate with traders and quants in a dynamic financial environment. Enjoy benefits like private healthcare and wellness initiatives.
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Australia , Sydney
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Susquehanna International Group
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C++ Quantitative Developer
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Join our elite Strategy Development team as a C++ Quantitative Developer in New York. Utilize your expertise in high-performance C++ and distributed systems to enhance alpha generation and research infrastructure. Collaborate directly with quants and traders in a meritocratic environment to solve...
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United States , New York
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175000.00 - 225000.00 USD / Year
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Susquehanna International Group
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C++ Developer
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Join our Trading Technology team in Dublin as a C++ Developer. Design and optimize high-frequency, low-latency trading systems using modern C++. Collaborate with quants to build scalable, performance-critical applications in a real-time environment. Receive a highly competitive compensation and b...
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Ireland , Dublin
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Susquehanna International Group
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Senior C++ Developer
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Join a Front Office team at SIG, designing cutting-edge low-latency trading systems in Bala Cynwyd, PA. As a Senior C++ Developer, you'll leverage 10+ years of experience to optimize performance and reduce latency. Collaborate directly with traders and technologists to innovate and deploy solutio...
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Susquehanna International Group
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C++ Developer - FIX
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Join Susquehanna as a C++ Developer in Hong Kong. Design and enhance low-latency, high-frequency trading applications for market data exchange connectivity. We seek an expert C++/Linux developer with 5+ years' experience, proficiency in Python, and financial market knowledge. Enjoy competitive be...
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China , Hong Kong
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Susquehanna International Group
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C# Developer - Risk
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Join our Trading Risk team in Hong Kong as a C# Developer. Build high-performance, real-time risk systems used by traders and Compliance. We seek strong C# skills, experience with multi-threading, and a passion for financial markets. Enjoy a collaborative culture, impactful work, and excellent be...
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China , Hong Kong
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Susquehanna International Group
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C++ Strategy Developer
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Join Susquehanna in Hong Kong as a C++ Strategy Developer. Design and optimize high-frequency, low-latency trading systems using modern C++. Collaborate directly with traders to solve complex problems in a real-time, performance-critical environment. Enjoy benefits including private healthcare an...
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China , Hong Kong
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Susquehanna International Group
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Contract C# Developer
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Join our client's team in Nashville as a Contract C# Developer. You will design, develop, and maintain software applications using C#, .NET, and front-end technologies. This role requires strong OOP skills and experience with SQL databases. We offer a competitive contract with benefits including ...
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United States , Nashville
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Robert Half
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C++ Developer
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Join Susquehanna in Sydney as a C++ Developer, building high-performance, low-latency trading systems. Utilize modern C++ and Python on Linux to solve complex problems in a dynamic financial environment. This role requires 2-5 years' experience and offers competitive benefits in a cutting-edge te...
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Australia , Sydney
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Susquehanna International Group
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C# Backend Developer
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Join our team as a C# Backend Developer to build high-scale services for an immersive 3D virtual platform. You will leverage .NET, Microservices, and real-time tech (SignalR/WebSockets) while optimizing databases and Kubernetes deployments. We offer a competitive salary, flexible work, and career...
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Romania; Moldova , Iasi; Chisinau
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Feel IT Services
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Senior C# .NET Core Developer
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Join a dynamic team in Skopje as a Senior C# .NET Core Developer. You will build the core backend for a leading malware protection solution using .NET Core, Redis, and RabbitMQ. This role requires 7+ years of experience and expertise in message brokers. Enjoy a hybrid work model, global exchange ...
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North Macedonia , Skopje
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Hornetsecurity
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Application Developer Analyst, C. Advanced
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Join the Office of Information Technology Services as an Application Developer Analyst. Develop and maintain cross-platform mobile applications using .NET MAUI, XAML, and C# for Android, iOS, macOS, and Windows. This role requires 5+ years of .NET MAUI experience and involves collaborating with s...
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United States , Tallahassee
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Robert Half
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Applications Development Analyst C. Advanced
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Join our team in Tallahassee as an Applications Development Analyst. You will leverage your expertise in ASP.NET, React/Angular, and SQL/Oracle databases to remediate and enhance critical financial web applications. This role utilizes Agile methodologies and Microsoft Azure DevOps in a collaborat...
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United States , Tallahassee
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Robert Half
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Senior C# .NET Developer
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Seeking a Senior C# .NET Developer and Solution Architect in Des Moines, Iowa. You will design scalable cloud architecture for financial trading platforms, integrating 3rd party APIs and vendor solutions. This direct-hire role offers a $150K base, 15% bonus, comprehensive benefits, and a unique 2...
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United States , Des Moines, Iowa
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150000.00 USD / Year
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Robert Half
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C, C++ Developer
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Join Fyld in Lisbon as a C/C++ Developer. Leverage your expertise in memory management, data structures, and multi-platform development on Linux/Windows. This role values high standards and offers a culture focused on training and peak performance. Experience in embedded systems is a plus.
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Portugal , Lisboa
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Fyld
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C# Developer
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Join Montrose Software as a C# Developer in Kraków. Enhance financial libraries for a major North American bank, focusing on analytics services and SQL Server applications. Utilize your 4+ years of C# and SQL expertise in a full development lifecycle role. Enjoy flexible hours, modern office, hea...
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Poland , Kraków
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Montrose Software
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C++ Developer
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Join a leading bank's capital markets team in Kraków as a C++ Developer. You will enhance a critical Risk Management system, focusing on derivatives and fixed income. We seek excellent C++ skills and knowledge of Fusion Sophis trading systems. Enjoy flexible hours, private medical insurance, a tr...
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Poland , Kraków
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Montrose Software
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C++ Developer
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Join our Market Risk Technology team in Mississauga as a C++ Developer. You will build and optimize a modern VaR Calculation engine using C++, multithreading, and STL/Boost. This role requires 5+ years of C++ experience, a strong grasp of market risk concepts (VaR, Greeks), and proficiency with G...
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Canada , Mississauga
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Citi
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C++ Developer
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Join our Shanghai engineering team as a C++ Developer. You will design and build our proprietary options trading platform using modern C++ (11/14/17/20) on Linux. We seek a developer with 3+ years' experience in scalable systems, multithreading, and Python. Collaborate with industry-leading trade...
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China , Shanghai
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AKUNA CAPITAL
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Junior Developer - C++
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Join Akuna Capital in Shanghai as a Junior C++ Developer. Contribute to building proprietary, high-performance trading systems and low-latency solutions. You will own the full software development lifecycle in a collaborative, fast-paced environment. Ideal for recent graduates passionate about mo...
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China , Shanghai
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AKUNA CAPITAL
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Explore the dynamic world of C# Developer jobs and discover a career at the heart of modern software innovation. A C# Developer is a specialized software engineer who leverages the powerful and versatile C# programming language, primarily within the .NET ecosystem, to build robust, scalable, and efficient applications. These professionals are the architects behind a vast array of software solutions, from complex enterprise-level backend systems and data-driven web services to interactive desktop applications and, increasingly, components of mobile and cloud-native applications. The demand for skilled C# Developers remains consistently high across numerous industries, including finance, healthcare, e-commerce, and gaming, making it a stable and rewarding career path. In a typical role, a C# Developer's responsibilities are comprehensive and central to the software development lifecycle. They are tasked with designing, coding, testing, and debugging new software applications. A significant part of their work also involves maintaining and enhancing existing systems, identifying areas for optimization, and implementing necessary updates to improve performance and security. Collaboration is key; these developers frequently work within cross-functional teams, partnering with project managers, UX/UI designers, and other engineers to gather requirements, analyze needs, and translate them into functional technical specifications. They are often responsible for writing clean, maintainable code and participating in code reviews to ensure adherence to established standards and best practices. Furthermore, creating and maintaining technical documentation for system designs and user manuals is a common duty, ensuring knowledge transfer and long-term project sustainability. To succeed in C# Developer jobs, a specific set of technical skills and foundational knowledge is essential. Core proficiency in the C# language and a deep understanding of the .NET Framework and/or the cross-platform .NET are non-negotiable. A strong grasp of object-oriented programming (OOP) principles is fundamental. Beyond C#, familiarity with front-end technologies like HTML, CSS, and JavaScript is often required for full-stack or web-focused roles. Database skills are crucial, with experience in SQL Server or other relational database management systems being highly common for designing and querying databases. Practical knowledge of version control systems, particularly Git, and experience with Agile development methodologies are standard expectations in the industry. From a soft skills perspective, excellent problem-solving abilities, analytical thinking, and effective communication and collaboration skills are vital for navigating complex projects and team dynamics. While a bachelor's degree in Computer Science or a related field is often preferred, substantial relevant experience and a proven track record can be equally valuable for securing top C# Developer jobs. This profession offers a challenging yet fulfilling opportunity to create the digital tools and platforms that power businesses and shape user experiences.

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