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We are working with a highly successful, niche fintech based in London that is looking to hire a Quant Developer with experience in option pricing models. They are a remote‑first and profitable business planning to grow their team. We can share further details with qualified candidates. Responsibilities: • Enhance and extend the financial analytics library by adding support for new products, models, and calculations while maintaining high engineering standards., • Deliver meaningful improvements to client experience by optimising performance, scalability, and reliability across the platform., • Collaborate closely with the wider engineering and quant teams to influence architecture, design, and best practices. Requirements: • Approximately 5 years of experience in a quant or developer role within a financial institution or fintech., • Strong understanding of the fundamental economics of financial derivatives., • Hands‑on experience calibrating models to market data for real‑time or trader‑facing use cases., • Comfortable working within large, complex, and evolving codebases., • A collaborative, feedback‑oriented mindset.

Python Risk Developer (Contract) - FICC / Emerging MarketsDublin, Ireland | Remote WorkingContract Role Overview Our client, a prestigious financial institution in Dublin, is seeking an experienced Python Risk Developer for an exciting contract opportunity. The successful candidate will be working on cutting-edge risk management solutions for Emerging Markets within Fixed Income, Currencies, and Commodities (FICC). Key Responsibilities • Develop algorithms and strategic frameworks for next-generation risk management platforms, • Participate in all stages of the software development lifecycle, • Collaborate daily with traders, quantitative analysts, and senior stakeholders, • Design and implement robust risk calculation and reporting solutions, • Contribute to system architecture and technical design decisions Required Skills & Experience, • Strong Python programming skills, including proficiency with NumPy, SciPy, and other scientific libraries, • Demonstrated experience in financial risk management systems development, • Understanding of FICC products, particularly in Emerging Markets, • Knowledge of software engineering design patterns and best practices, • Experience with market data feeds and consumption technology (e.g., Reuters, Bloomberg), • Familiarity with yield curves and their construction methodologies Preferred Qualifications, • Experience working in tier-one financial institutions, • Background in Market Risk or Trader Risk development, • Strong knowledge of rates and fixed income products, • Experience working in fast-paced delivery environments, • Ability to communicate complex technical concepts to non-technical stakeholders What Our Client Offers, • Competitive contract rates, • Hybrid/ remote working arrangement, • Opportunity to work on high-profile projects with exposure to senior business sponsors, • Collaborative environment with cutting-edge technology, • Professional development in advanced risk management technologies If you're an experienced Python developer with a strong interest in financial risk systems and are looking for your next challenging contract role, please get in touch with us today! McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds.

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain projects and traditional financial institutions moving into crypto. Wintermute also has a Wintermute Ventures arm that invests in early stage DeFi projects. Wintermute was founded in 2017 by industry leaders and has successfully navigated crypto industry cycles. Culturally, we combine the best of the two worlds: the technology standards of high-frequency trading firms in traditional markets and the innovative and entrepreneurial culture of technology startups. To Wintermute digital assets is not just another asset class, we believe in the innovative potential of blockchain, the fundamental innovations, we have a long-term view on the digital asset market and are taking a leadership position in building an innovative and compliant market. Read more _ Working at Wintermute We are looking for a C++ Trading Platform Developer who is passionate about technology, interested in both low level details of how computer hardware operates and high-level design of large systems, as well as in data infrastructure. Someone who likes opening the hood to see how things work, has understanding of data structures, experience writing client-server network applications, and writing and optimising code for high performance. We welcome your previous experience from your own personal projects as well as commercial experience. We are looking for people who are passionate about technology and have experience looking under the hood to see how C++ standard libraries and other solutions are implemented. Interest in algorithmic and quantitative trading is a plus. At Wintermute you will have an opportunity to grow and make direct impact on trading by developing and improving all the parts of the trading platform, data infrastructure and related software, while also getting advice and guidance from very experienced developers and traders, including the founders. You will get a lot of independence and responsibility right away, and you'll learn at an unprecedented speed! No legacy systems, no multiple levels of approvals, no bureaucracy; all developers report directly to CTO who is very hands on. You are judged by what you deliver, not by the hours your do. It is up to you to make an impact! You will work alongside exceptionally sharp colleagues, learn how to write fail-safe code and improve performance and scalability of the trading system, a real challenge and a rare opportunity! We have flexible working arrangements, it’s the productivity that matters. What will you work on A great advantage of this position is that it is varied, and it is also up to you to shape it in the direction that matches your talents and company needs. The focus of the role would be to work on the global trading platform that spans across many continents, with real time data capture, order entry on dozens of exchanges, robust connectivity and built in monitoring. You would be working on expanding and scaling up our trading platform, mainly using C++ and Python. All the workstations and servers are running Linux, no windows in trading and the development team. We also keep things simple and easy to understand wherever possible which means designing, scalable and robust C++ and Python code is a main skill. We will share more technical details in the interviews. You will have opportunity to improve your knowledge of software optimisations, of building robust large-scale systems and to understand crypto currency trading. \n Hard Skills requirements • Strong C++ skills are required - we will test, • Experience with looking under the hood to see how C++ standard libraries work - we will test, • Strong analytical skills - we will test, • Understanding of networking, CPU and memory model, assembly language - desirable Join our dynamic team and benefit from: • Working at one of the most innovative trading firms globally., • Engaging projects offering accelerated responsibilities and ownership compared to traditional finance environments., • A vibrant working culture with frequent team meals, holiday celebrations, gaming events, and company-wide outings, including our annual Wintermute weekend getaway., • A Wintermute-inspired office in central London, featuring an array of amenities such as table tennis and foosball, personalized desk configurations, a cozy team breakout area with games and free food., • Great company culture: informal, non-hierarchical, ambitious, highly professional with a startup vibe, collaborative and entrepreneurial., • A performance-based compensation with a significant earning potential alongside standard perks like pension and private Health insurance. Note: • Although we are unable to accept fully remote candidates, we support significant flexibility in regards to working from home and working hours., • We offer UK work permits and help with relocation Find out more: • _, • _, • _, • _, • _ \n

Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high-performance platform and independent trading teams. We have a 25+ year track record of innovation and a reputation for discovering unique market opportunities. Tower is home to some of the world’s best systematic trading and engineering talent. We empower portfolio managers to build their teams and strategies independently while providing the economies of scale that come from a large, global organization. Engineers thrive at Tower while developing electronic trading infrastructure at a world class level. Our engineers solve challenging problems in the realms of low-latency programming, FPGA technology, hardware acceleration and machine learning. Our ongoing investment in top engineering talent and technology ensures our platform remains unmatched in terms of functionality, scalability and performance. At Tower, every employee plays a role in our success. Our Business Support teams are essential to building and maintaining the platform that powers everything we do — combining market access, data, compute, and research infrastructure with risk management, compliance, and a full suite of business services. Our Business Support teams enable our trading and engineering teams to perform at their best. At Tower, employees will find a stimulating, results-oriented environment where highly intelligent and motivated colleagues inspire each other to reach their greatest potential. Tower Research Capital, a high-frequency proprietary trading firm founded in 1998, seeks a Quant Developer to join one of its trading teams in London. You will be joining the EMEA Development team and as a Quant Developer, you will be in charge of improving the current research framework through the development of existing and new tools, and provide close day-to-day support to the quantitative research team on-site. Responsibilities • Designing and implementing a low latency high-frequency trading platform, • Assisting in the development of a tick by tick backtesting research platform, • Assisting in development and optimizing large-scale parallel computation problems that requires large quantities of data shared across resources, • Optimizing the computational efficiency of existing machine learning based algorithms to drive higher performance and faster learning rates, • Developing systems, interfaces and tools to historical market data and trading simulations that increase research productivity, • Creating tools to analyze data and generate insights that research decisions are based on Qualifications • Bachelor's, Masters or PhD in Computer Science, Engineering, or a related field (or equivalent practical experience), • A strong background in data structures, algorithms, and object-oriented programming in C++, • Brilliant problem-solving abilities, • The ability to manage multiple tasks in a fast-paced environment, • Strong communication skills, • Python and/or financial markets experience is preferred but not required Benefits Tower’s headquarters are in the historic Equitable Building, right in the heart of NYC’s Financial District and our impact is global, with over a dozen offices around the world. At Tower, we believe work should be both challenging and enjoyable. That is why we foster a culture where smart, driven people thrive – without the egos. Our open concept workplace, casual dress code, and well-stocked kitchens reflect the value we place on a friendly, collaborative environment where everyone is respected, and great ideas win. Our benefits include: • Generous paid time off policies, • Savings plans and other financial wellness tools available in each region, • Hybrid working opportunities, • Free breakfast, lunch, and snacks daily, • In-office wellness experiences and reimbursement for select wellness expenses (e.g., gym, personal training and more), • Company-sponsored sports teams and fitness events, • Volunteer opportunities and charitable giving, • Social events, happy hours, treats, and celebrations throughout the year, • Workshops and continuous learning opportunities At Tower, you’ll find a collaborative and welcoming culture, a diverse team and a workplace that values both performance and enjoyment. No unnecessary hierarchy. No ego. Just great people doing great work – together. Tower Research Capital is an equal opportunity employer.

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain projects and traditional financial institutions moving into crypto. Wintermute also has a Wintermute Ventures arm that invests in early stage DeFi projects. Wintermute was founded in 2017 by industry leaders and has successfully navigated crypto industry cycles. Culturally, we combine the best of the two worlds: the technology standards of high-frequency trading firms in traditional markets and the innovative and entrepreneurial culture of technology startups. To Wintermute digital assets is not just another asset class, we believe in the innovative potential of blockchain, the fundamental innovations, we have a long-term view on the digital asset market and are taking a leadership position in building an innovative and compliant market. Read more _ Working at Wintermute We are looking for a C++ Quant Developer who is passionate about technology, interested in both low level details of how computer hardware operates and high-level design of large systems, as well as in data infrastructure. Someone who likes opening the hood to see how things work, has understanding of data structures, experience writing client-server network applications, and writing and optimising code for high performance. We welcome your previous experience from your own personal projects as well as commercial experience. PhD in maths is not uncommon for our Quant Developers, and at least a graduate level of maths skills is required. Interest in algorithmic and quantitative trading is a plus. At Wintermute you will have an opportunity to grow and make direct impact on trading by developing and improving all the parts of the trading platform, data infrastructure and related software, while also getting advice and guidance from very experienced developers and traders, including the founders. You will get a lot of independence and responsibility right away, and you'll learn at an unprecedented speed! No legacy systems, no multiple levels of approvals, no bureaucracy; all developers report directly to CTO who is very hands on. It is up to you to make an impact! You will work alongside exceptionally sharp colleagues, learn how to write fail-safe code and improve performance and scalability of the trading system, a real challenge and a rare opportunity! We have flexible working arrangements, it’s the productivity that matters. At least several days a week in the office with our own gym, unlimited food and drinks are required. What will you work on A great advantage of this position is that it is varied, and it is also up to you to shape it in the direction that matches your talents and company needs. The focus of the role would be to create data infrastructure to bring the analytics to the next level and support the scaling of quantitative trading. Projects may also include upgrading major trading system components, designing a completely new application from scratch, working on implementation of pricing models. We will share more technical details in the interviews. You will have opportunity to improve your knowledge of software optimisations, of building robust large-scale systems and to understand crypto currency trading. \n Hard Skills requirements • At least 2 years’ experience with C++ - we will test, • Understanding networking and implementing client-server connections - we will test, • Experience with looking under the hood to see how C++ standard libraries work - we will test, • Strong analytical skills - we will test Join our dynamic team and benefit from: • Working at one of the most innovative trading firms globally., • Engaging projects offering accelerated responsibilities and ownership compared to traditional finance environments., • A vibrant working culture with frequent team meals, holiday celebrations, gaming events, and company-wide outings, including our annual Wintermute weekend getaway., • A Wintermute-inspired office in central London, featuring an array of amenities such as table tennis and foosball, personalized desk configurations, a cozy team breakout area with games and free food., • Great company culture: informal, non-hierarchical, ambitious, highly professional with a startup vibe, collaborative and entrepreneurial., • A performance-based compensation with a significant earning potential alongside standard perks like pension and private Health insurance. Note: • Although we are unable to accept fully remote candidates, we support significant flexibility in regards to working from home and working hours., • We offer UK work permits and help with relocation Find out more: • _, • _, • _, • _, • _ \n

Job title: Senior GoLang developer Job location: Brighton, Burgess Hill or London Job type: Contract 12 Months Work mode:Hybrid, 3 days from the office/week JD: Minimum years of experience: • experience on mandatory relevant skills (Golang, Kubernetes, Docker) of 4+ years, • total experience to 5+ Required Core Skills: Development experience with: 1. strong in Golang, 2. Kubernetes, 3. Docker Minimum Qualifications: • Position requires a Bachelor’s degree in Computer Science, Engineering, or a related field followed by 6+ years of experience in Golang development stack., • Experience in application design, software development, and testing, preferably in an Agile environment., • Solid understanding of test-driven development, including unit, component, functional, system integration and regression tests., • Experience working with Git on small to medium sized teams., • Experience designing and developing REST APIs for high volume clients., • Experience with open-source frameworks is a plus especially maintaining or contributing to open source projects!, • Experience with container and container orchestration technologies, such as Docker and Kubernetes., • Comfortable/experienced with back-end micro-service architecture and communication, specifically REST and asynchronous messaging services (e.g., Kafka, RabbitMQ etc.), • Experience with relational and NoSQL databases, including PostgreSQL, Couchbase, or Cassandra is a plus., • Experience with continuous integration tools (Github Actions, Jenkins, Gitlab CI) a plus., • Experience with automated build and test frameworks a plus., • A proven hunger to learn new technologies and translate them into working software., • Experience with Atlassian software development and collaboration tools (JIRA, Confluence, etc.), a plus., • Strong ability to develop unique, outside the box ideas, • Strong analytical, problem-solving/quantitative skills, • Willing to take risks, experiment, and share fresh perspectives, • Aptitude for learning and applying programming concepts., • Ability to effectively communicate with internal and external business partners. Preferred Additional: • Knowledge of payments industry, • Experience with coding skills across a variety of distributed technologies, • Experience with a broad range of software languages and payments technologies

Kappa Lab is a digital assets market maker committed to delivering 24/7 deep liquidity and enhancing market efficiency. Our proprietary technology enables us to provide swift and effective solutions to our partners, while our sophisticated algorithms ensure efficient and consistent pricing across all trading venues. We fuel the Web3 ecosystem, driving innovation in pioneering projects with the professionalism and dedication of our exceptional team. Description As a Quant Developer at Kappa Lab, you will be working within a trading team, playing a pivotal role in translating quantitative trading strategies into operational algorithms and production-grade code. You will be working at the forefront of the rapidly evolving world of cryptocurrency trading. This position demands a blend of problem-solving skills, adaptability, and collaborative teamwork. If you possess a strong background in programming, excellent analytical skills, and an interest in the crypto markets, we want to hear from you! We offer a hybrid working arrangement, with the opportunity to be based in either our London or Dubai Office. Responsibilities • Design, develop, and implement high-performance trading algorithms and systems for cryptocurrency markets, ensuring they align with quantitative strategies and market-making objectives., • Optimize code for speed, reliability, and scalability to handle high-frequency trading environments and large-scale data processing., • Analyze market data, liquidity patterns, and order book dynamics to improve algorithm efficiency and pricing models., • Improve reporting and analysis of the existing system's performance. Required skills • Proficiency in Python., • Strong understanding of data structures, algorithms, and software design principles., • Experience with data analysis and manipulation using libraries like NumPy, Pandas, or similar tools., • Good knowledge of probability, statistics, and quantitative modeling techniques., • Familiarity with cryptocurrency markets, blockchain technology, and trading concepts (e.g., order types, liquidity provision)., • Excellent problem-solving skills and the ability to work effectively in a fast-paced, team-oriented environment. Desirable skills • Proficiency in Rust and/or Cython.., • Experience in high-frequency trading (HFT), market making, or algorithmic trading in crypto or traditional finance. Kappa Lab is an equal opportunites employer committed to creating an inclusive and diverse workplace. We welcome applications from all individuals and do not discriminate based on race, colour, nationality, ethnicity, religion or belief, sex, sexual orientation, gender identity or expression, marital status, pregnancy or maternity, disability, or age. We value and respect the unique contributions each person brings, and we strive to ensure that everyone can thrive and grow within our organization.