Senior C# / .NET Developer – Front Office, FX & Orchestrade Systems

Join our dynamic team as a Senior C# / Orchestrade Developer at Talan, where your expertise will help shape innovative financial solutions. In this role, you will be at the forefront of developing and enhancing our Orchestrade platform, ensuring high performance and scalability.Your responsibilities will include collaborating closely with cross-functional teams, providing technical leadership, and driving the implementation of best practices in software development. Bring your passion for coding and problem-solving to a vibrant workplace that values creativity and collaboration.

Role overview version1 is seeking a Senior C++ Developer to design and build software solutions. This position works alongside digital, data, and cloud teams to deliver applications that serve a variety of clients. The focus is on creating reliable and high-performance systems that meet client needs. What you will do Design and implement software using C++ for a range of projects Contribute throughout the project lifecycle, from concept to delivery Collaborate with colleagues across digital, data, and cloud teams Prioritize performance and reliability in every solution Requirements Extensive experience developing with C++ Proven ability to deliver complete software projects Strong collaboration skills with both technical and non-technical team members Locations This role is available in London, Birmingham, Manchester, Newcastle upon Tyne, Edinburgh, and Belfast.

Role overview Talan is hiring a Senior C# React Developer in London to support software development for investment banking clients. This role centers on building and maintaining applications that meet the demands of the finance sector. Strong experience with both C# and React is essential to ensure reliable and effective solutions. What you will do Design and develop complex financial applications using C# and React Collaborate with colleagues from various backgrounds to align solutions with client requirements Play a key role in shaping the architecture, implementation, and ongoing improvement of critical systems Collaboration This position involves working closely with cross-functional teams. Sharing expertise and ideas is part of the daily routine, helping to achieve business objectives and deliver quality outcomes for clients.

Role Overview Talan is looking for a C# Developer in London. This role focuses on building, testing, and maintaining reliable software applications using C#. The position involves hands-on programming and close collaboration with colleagues from different teams. What You Will Do Develop and maintain software applications in C# Test new features and ensure software quality Work with cross-functional teams to gather requirements and design architecture Help implement systems that align with business goals Location This position is based in London.

Job Description:We are seeking an accomplished C# and .NET Developer to join our dynamic team. The ideal candidate will possess a deep understanding of C# and the .NET framework, demonstrating proficiency in developing robust applications and solutions.Mode of Interview: Telephonic & Face to Face.

Position Overview Join our dynamic and collaborative team as a Quantitative Developer specializing in C++. In this role, you will be instrumental in developing and maintaining high-performance trading systems and signal logic while supporting critical infrastructure. You will work closely with quantitative researchers and traders, assisting in the implementation of trading strategies and various research projects. Your collaboration with technology teams will involve providing strategy and signals containers, ensuring seamless integration with Squarepoint's comprehensive infrastructure. The ideal candidate will thrive in a fast-paced environment, adeptly balancing rapid tactical delivery with long-term strategic initiatives. Strong communication skills are essential for driving cross-team projects and daily interactions with quant researchers and traders. A solid work ethic, enthusiasm for cutting-edge technology, and the determination to navigate complex challenges are key attributes for success in this role. Attention to detail and experience with defensive programming are vital. Research and implement trading strategies and signals logic, including backtesting, simulations, and processing frameworks. Develop advanced tooling for analyzing large data sets using statistical methods to identify trading opportunities and assess impacts over time. Gain a thorough understanding of market operations and structures to effectively apply domain knowledge to software design and development. Focus on long-term design improvements and maximizing code reuse. Support quantitative researchers with technical aspects of trading strategies and contribute to R&D efforts. Participate in the strategic design and roadmap for high-performance trading infrastructure. Provide production support, primarily in a Level 2 capacity, with Level 1 support during specific strategy rollouts. Collaborate with cross-functional teams (feed handlers, order gateways, reference data) to drive initiatives including latency monitoring and product rollouts.

At Ripple, we are pioneering a future where value transfers seamlessly, akin to how information flows today. Our mission is ambitious and transformative, already making strides through our innovative crypto solutions tailored for financial institutions, enterprises, governments, and developers. We aim to enhance the global financial landscape, fostering economic equality and opportunities for individuals across diverse regions worldwide. Here, you will be empowered to perform your best work and expand your skill set, supported by a collaborative team.If you are eager to witness your contributions make a real-world impact and explore remarkable career advancement prospects, we invite you to join us in creating tangible value.The TeamRippleX is committed to equipping the innovators of the future on the XRP Ledger (XRPL), renowned as one of the fastest and most dependable public blockchains globally. Our goal is to democratize the digital economy through practical support, empowering a vibrant developer community, and leveraging the expertise of a forward-thinking technology organization.The Programmability team plays a crucial role in this vision, dedicated to enhancing the core functionalities of the XRP Ledger to accommodate smart contracts and more sophisticated on-ledger capabilities. We are on the lookout for skilled engineers who are passionate about shaping the future of decentralized applications.Your ResponsibilitiesDesign, develop, and maintain foundational components of the XRP Ledger to boost programmability, smart contract functionalities, performance, and scalability.Lead the integration and upkeep of a WebAssembly (WASM) virtual machine within the XRPL’s C++ core.Participate in the complete software development lifecycle, encompassing architecture and design to development using modern C++ and Rust, alongside rigorous testing.Produce system design documentation and spearhead technical conversations with both internal and external engineering stakeholders.Maintain high coding and testing standards as a champion of the open-source XRP ledger community, including engaging in code reviews.

About WintermuteWintermute is a pioneering technology firm and one of the largest algorithmic trading companies specializing in digital assets. We excel at providing liquidity across a multitude of cryptocurrency exchanges and trading platforms, offering a wide array of OTC trading solutions, while also bolstering high-profile blockchain initiatives and traditional financial institutions venturing into the crypto space. Additionally, Wintermute operates a ventures arm that invests in promising early-stage DeFi projects.Since our inception in 2017, Wintermute has adeptly navigated through various industry cycles. Culturally, we blend the technological excellence of high-frequency trading firms in traditional markets with the innovative spirit of technology startups. At Wintermute, we are committed to harnessing the transformative potential of blockchain technology. Our long-term vision focuses on the digital asset market, and we strive to play a leading role in establishing an innovative and compliant trading environment. You can learn more about us here.Join Our Team at WintermuteWe are on the lookout for a passionate C++ Trading Platform Developer who possesses a keen interest in both the intricate details of computer hardware and the overarching design of large-scale systems, including data infrastructure. Ideal candidates will have a natural curiosity to explore the inner workings of systems, a solid understanding of data structures, and experience in writing client-server network applications. Additionally, proficiency in writing and optimizing high-performance code is essential. We value both your commercial experience and personal projects that showcase your dedication to technology. A genuine interest in algorithmic and quantitative trading will be considered advantageous.At Wintermute, you will have the opportunity to grow your skills and make a direct impact on our trading activities by developing and enhancing various components of our trading platform, data infrastructure, and related software. You will receive mentorship and insights from seasoned developers and traders, including the founders of the company. Expect a high degree of independence and responsibility from the outset, with a learning curve that is second to none. We do not have legacy systems, excessive approvals, or bureaucracy; all developers report directly to the CTO, who is actively involved in day-to-day operations. Your contributions will be evaluated based on their impact rather than the hours you log.

At Ripple, we are pioneering a future where value transfers seamlessly, akin to the flow of information today. Our groundbreaking crypto solutions are transforming the financial landscape for institutions, businesses, government entities, and developers, fostering a more equitable global economy. Join us to thrive in an environment that champions your professional growth, surrounded by supportive colleagues.Are you ready to make a significant impact and unlock exciting career advancement opportunities? Come aboard and help us create real-world value.THE WORKRippleX is committed to empowering tomorrow's innovators on the XRP Ledger (XRPL), one of the fastest and most reliable public blockchains globally. We aim to democratize the digital economy by providing hands-on support, nurturing a community of developers, and leveraging our expertise as a forward-thinking technology firm.The XRPL is a decentralized public blockchain operated by a global network of businesses and developers dedicated to addressing challenges and generating value. With over a decade of proven reliability and more than 90 million ledgers closed, the XRPL boasts streamlined development, low transaction costs, exceptional performance, and sustainability. We seek senior engineering talent to uphold our high technical standards while crafting innovative solutions to meet the growing demands of the digital economy.WHAT YOU'LL DOEnhance the capabilities, performance, scalability, and reliability of the XRP Ledger.Engage in the complete software development lifecycle, encompassing architecture, technical design, C++ development, bug resolution, and functional as well as performance validations.Contribute to the open-source XRP Ledger community, establishing rigorous standards for coding, testing, and deployment.Actively participate in code reviews to uphold the quality of our codebase.WHAT YOU'LL BRINGA Bachelor’s degree in Computer Science or a similar discipline, along with 5+ years of substantial hands-on experience in software product development utilizing C++.Proficiency in backend distributed systems development.A strong enthusiasm for blockchain technology and its potential advantages.The capability to swiftly learn new technologies and programming languages.Exceptional problem-solving skills, with the ability to devise creative solutions independently.Preferred: Experience in developing and contributing to open-source software.

Role overview LMAX seeks a C++ and Python Developer to join its Middle-Office Team in London. This group works alongside infrastructure, research, and treasury teams to advance trade reconciliation, back-testing frameworks, and trading monitoring systems. The main focus lies in data engineering and building trading systems from the ground up. Prior experience in finance or trading is not required for this position. Team approach The team operates at the intersection of C++ and Python. C++ powers the infrastructure, while Python supports research tasks like analysis and automation. Bridging these languages is central to the role, supporting integration and collaboration across disciplines. Performance and optimization Managing financial data introduces technical challenges, particularly around throughput. The team values software performance but never at the expense of maintainability. Developers work closely with the codebase to understand, optimize, and refine systems. Testing practices Comprehensive testing is a core part of the workflow. The team maintains test suites that include unit tests and full end-to-end simulations. Continuous integration runs these tests every 15 minutes, ensuring rapid feedback and no overnight waits for results. What you will do Write clear, well-structured, and thoroughly tested code in C++ and Python Develop software solutions that handle high throughput Pair program to share knowledge and prevent silos Design and implement features to enhance safety, performance, and usability Create interface code connecting C++ and Python using pybind Requirements Strong C++ skills, especially with modern C++ on Linux or UNIX Python development experience, including Numpy, Pandas, and SQL Experience with automated testing for both C++ and Python Ability to interpret business requirements and build effective systems Skilled at designing simple, well-documented, and maintainable solutions Comfortable working independently with minimal supervision No finance or trading background needed Bonus skills Experience with test-driven development and testing across multiple system levels Location This position is based in London, England, United Kingdom.

Join our dynamic team at asos as a Senior Software Engineer specializing in Azure and C#. In this pivotal role, you'll be responsible for designing, developing, and deploying innovative software solutions that enhance our e-commerce platform. You'll collaborate with cross-functional teams to ensure the delivery of high-quality software that meets our business objectives and customer needs.

About UsAt C-Link, we’re transforming the landscape of construction procurement through innovative workflow automation, enabling subcontractors to secure opportunities more effectively. As a rapidly expanding ConTech enterprise, we proudly operate under two prominent brands:C-Link (www.c-link.com) – A cutting-edge procurement software solution designed for main contractors and developers.Prosper (www.weallprosper.co.uk) – A comprehensive marketplace and lead generation platform tailored for subcontractors.With bold growth ambitions and a commitment to redefining procurement practices within the construction sector, we are expanding our marketing team and seeking a dynamic Product Marketing Manager to enhance product positioning, comprehension, and market adoption.The RoleAs the Product Marketing Manager, you will be pivotal in bridging Product, Marketing, Sales, and Customer Success teams. Your main responsibility will be to translate our product capabilities into clear, compelling value propositions for our target customers, empowering our commercial teams to excel.This is a high-impact, senior-level individual contributor role where you will own product positioning, execute go-to-market strategies, and derive customer insights in a fast-paced SaaS environment.What You’ll Be DoingLead the evolution of C-Link’s product positioning, messaging, and value propositions for key personas and ideal customer profiles (ICPs).Direct go-to-market planning for new product features and releases, collaborating closely with Product and Sales teams.Create impactful sales enablement materials, including pitch decks, one-pagers, case studies, and launch assets.Gather deep customer and market insights through interviews, win/loss analysis, surveys, and data analysis.Maintain detailed buyer personas, use cases, and customer journey narratives.Contribute to competitive analysis, positioning, and pricing strategies.Oversee the creation of product-centric content, customer success stories, and educational resources.Partner with Sales and Customer Success to ensure consistent messaging throughout the buyer journey.Manage relationships with external agencies, designers, and freelancers to deliver high-quality outputs.What We’re Looking ForA minimum of 5 years’ experience in B2B SaaS marketing, with a strong emphasis on product marketing.Proven track record in product positioning, supporting launches, and influencing successful go-to-market strategies.Exceptional storytelling, writing, and communication skills.A strong analytical mindset with the ability to work comfortably with customer and performance data.Confident cross-functional collaborator who can influence without direct authority.Experience in the ConTech or construction industry is highly desirable.Familiarity with HubSpot and SaaS environments is preferred.Why Join Us?Join a high-growth, innovative company where your contributions will have a direct impact.

Caxton seeks a Senior Software Engineer (C# / .NET) to lead a team of developers in London. This role blends hands-on engineering with team leadership, focusing on delivering reliable software using C# and .NET. Key responsibilities Mentor and guide a group of software developers Shape technical decisions and encourage strong team collaboration Maintain high standards of software quality and reliability Take part in designing and implementing new solutions Location This position is based in London, England, United Kingdom.

Join Canva as a Senior UI Engineer, where you will play a crucial role in designing and developing exceptional user interfaces for our iOS and macOS applications. Collaborate with cross-functional teams to create engaging user experiences that delight our millions of users worldwide.

Join Our Team at WintermuteAs a leading technology unicorn and one of the foremost algorithmic trading firms in the digital assets space, Wintermute is at the forefront of cryptocurrency liquidity provision across major trading platforms. We specialize in offering a wide array of OTC trading solutions and are committed to advancing high-profile blockchain initiatives alongside traditional financial institutions transitioning into the crypto ecosystem. Additionally, our Wintermute Ventures division invests in pioneering DeFi projects.Since our inception in 2017, Wintermute has adeptly navigated the ever-changing landscape of the cryptocurrency market. We pride ourselves on blending the rigorous technology standards of high-frequency trading firms with the dynamic and innovative culture characteristic of technology startups. Our vision is rooted in the transformative potential of blockchain, and we are dedicated to shaping a compliant and progressive market for digital assets. Discover more about us here.Position OverviewWe are looking for a skilled C++ Developer to join our expanding options trading team—one of the largest electronic trading desks within the crypto options market. In this pivotal role, you will work closely with our traders to develop high-performance, scalable options trading systems. Your engagement will span the full options stack, promoting business growth across centralized finance, decentralized finance, and OTC. The ideal candidate will demonstrate strong problem-solving abilities and thrive in a fast-paced environment.

Alten is looking for a Senior Embedded C++ Engineer based in London. This position centers on designing, developing, and optimizing embedded software for a range of industry projects. Role overview This role involves working closely with cross-functional teams to build reliable embedded software. The focus is on delivering solutions that meet strict functional and performance standards. What you will do Design and implement embedded C++ software for diverse applications Optimize code for efficiency and reliability Collaborate with colleagues across engineering and product teams Ensure software meets both functional and performance requirements Location This position is based in London.

Join Spotify as a Senior Software Engineer specializing in TV Playback with C++. In this role, you will be integral to enhancing our streaming technology, helping to deliver an exceptional user experience across a variety of devices. Your expertise will guide the development of innovative playback features, working alongside a dynamic team of engineers and product managers.

Why Choose PlayStation?At PlayStation, we pride ourselves on being not just the best place to play, but also the best place to work. As a recognized global leader in entertainment, we proudly produce the PlayStation family of products and services, including PlayStation®5, PlayStation®4, PlayStation®VR, PlayStation®Plus, and critically acclaimed software titles from PlayStation Studios.We are dedicated to fostering an inclusive environment that empowers a diverse workforce. We welcome individuals who are passionate about innovation, technology, and gaming to explore our open positions and join our expanding global team.PlayStation is a brand under Sony Interactive Entertainment, a wholly-owned subsidiary of Sony Group Corporation.We are on the lookout for a talented Software Engineer to join our game integration platform, bridging gameplay and platform experiences! As a member of the Partners Platform team, you will work at the intersection of business and engineering on the PlayStation SDK Windows Delivery tooling.In this role, you will contribute to the development of the SDK Manager Windows Application, coordinating with business and engineering teams to enhance the relationship between SIE and our game development and publishing partners.Role Overview:We are seeking a skilled C# Software Engineer to design and develop Windows-based applications that facilitate the delivery and integration of SDK components for Sony PlayStation platforms. This position requires robust experience in C#, along with a solid understanding of C and C++ for low-level integration and performance-critical components.Key Responsibilities:Design, develop, and maintain Windows desktop applications using C# and the .NET framework.Create tools and interfaces to support the integration and delivery of PlayStation SDK components.Utilize native code (C/C++) to interface with low-level systems and SDK libraries.

Role overview Alten Ltd. is seeking a Senior C++ Software Engineer based in London. This role centers on developing, designing, and maintaining software for projects in the Defense and Naval sector. The position requires a strong focus on high-quality, efficient software solutions that meet rigorous standards. What you will do Design and implement software in C++ for Defense and Naval applications Maintain and enhance existing codebases to support reliability and performance Work closely with multidisciplinary engineering teams to deliver solutions that align with client needs Requirements Extensive experience in C++ development Background in software engineering, with preference for experience in Defense or Naval projects Strong ability to collaborate and contribute within a team environment