Junior Trading Systems Engineer

Production Engineer - Electronic Trading SystemsJoin MARGO in London, UKMARGO Group is a cutting-edge consultancy that provides high-value IT expertise to the financial services sector. We specialize in complex Front Office environments where trading activities depend on robust, high-performing, and resilient production systems. Our experts bridge the gap between trading, development, and infrastructure teams to ensure critical platforms operate reliably under the pressures of real-time market conditions.Becoming a part of MARGO means thriving in challenging production environments, benefiting from a close-knit structure, personalized support, and tailored training programs.Business ContextIn this role, you will engage with Front Office Production and Trading Technology environments, actively supporting live trading and electronic trading platforms. These critical production environments operate in real-time and necessitate strong ownership of system stability, performance, and incident management. You will interact closely with traders, developers, IT support, and infrastructure teams.Role OverviewWe are seeking a dedicated Front Office Production Engineer to manage, stabilize, and enhance our trading and electronic trading systems. This role is highly technical and focuses on production. It combines hands-on system operation with in-depth incident investigation, performance optimization, and automation, providing close support to Front Office users.This position is ideal for individuals who take pride in owning production systems, comprehending application behavior under load, and collaborating across teams to enhance reliability and performance.Key ResponsibilitiesProduction Ownership & Reliability· Operate and support Front Office trading systems in live production environments.· Ensure the highest levels of availability, stability, and performance during trading hours.

Front Office IT Support Engineer – Trading & Electronic Trading SystemsJoin MARGO in the UK (London)MARGO is a technology-driven consultancy that provides high-value IT expertise to the financial services sector.We thrive in complex Front Office environments where technology, trading activity, and operational constraints converge. Our team supports and manages mission-critical trading systems utilized by Front Office, trading, and risk teams, ensuring responsiveness, reliability, and a deep technical understanding.Being part of MARGO means engaging in challenging Front Office environments while enjoying a close-knit structure, personalized support, and customized training pathways.Business ContextIn this role, you will be integral to Front Office IT Support and Trading Technology, providing support for live trading operations across various asset classes.Our systems are production-critical, operate in real-time, and demand a strong emphasis on stability, performance, and incident management. You will collaborate closely with traders, sales, risk, development, and infrastructure teams.Role OverviewWe are seeking a Front Office IT Support Engineer to oversee, enhance, and maintain trading and electronic trading systems.This position extends beyond mere reactive support; it requires proactive ownership of Front Office platforms, involvement in change initiatives, and hands-on troubleshooting of production issues in real-time settings.Ideal candidates will have a strong passion for trading systems, production environments, and a desire for progressive technical challenges.Key ResponsibilitiesProduction Support & Operations· Deliver Front Office IT support in live trading environments.· Ensure the availability, stability, and performance of trading systems during market hours.· Collaborate with various teams to identify and resolve issues efficiently.

Network Engineer – Trading & Electronic Trading InfrastructureJoin MARGO in London – Permanent & Contracting OpportunitiesMARGO is a technology-driven consultancy providing exceptional IT expertise tailored for the complexities of financial markets.We specialize in mission-critical trading and electronic trading infrastructures, emphasizing performance, latency, resilience, and automation as key elements of success. Our consultants collaborate closely with trading, application, and infrastructure teams to design, transform, and operate high-performance platforms.By joining MARGO, you will engage in technically challenging transformation projects while benefiting from a supportive environment, personalized career development, and close guidance.Business ContextYou will be part of a trading and electronic trading infrastructure team undergoing a significant network transformation.Following years of organic growth, we are re-evaluating our network architecture with new investments focused on:Latency-sensitive electronic trading systemsScalability and resilienceAutomation and infrastructure-as-code principlesThis role is positioned at the intersection of network engineering, production operations, and application proximity, requiring direct interaction with trading and development teams.Role OverviewWe are seeking a Network Engineer to play a key role in the redesign, automation, and management of trading and corporate network infrastructures.The position combines architectural design, hands-on engineering, and production ownership, ideal for engineers eager to work closely with trading environments and lead significant technical transformation initiatives.Key ResponsibilitiesArchitecting, transforming, and managing network infrastructures while ensuring their operational excellence.

Join Hudson River Trading (HRT) as a Junior Crypto Electronic Trading Support Engineer in our London office. As part of our dynamic Trade Operations (TradeOps) team, you will manage one of the world's leading electronic trading platforms, focusing on crypto trading. Your role will involve configuring, monitoring, and optimizing trading processes while addressing risk, compliance, and development tasks. You will engage in automating routine processes and prepare for unexpected challenges, which may include troubleshooting issues to ensure a smooth market open, making critical decisions balancing compliance, risk, and PnL during trading hours, and coordinating the launch of new trading strategies. We seek a tech-savvy individual with a passion for crypto, ready to tackle a variety of projects using the best tools available. Exceptional communication skills and a proactive attitude are essential in this fast-paced environment.

Hudson River Trading seeks a Trading Systems Engineer to join the Trading Systems Infrastructure team. This group builds and maintains the technology behind global trading operations. Their work supports high performance and reliability for the ultra-low latency operating systems, automation tools, and development platforms that keep trading strategies running worldwide, around the clock. Role overview The Trading Systems Engineer will help support and improve real-time production trading environments. The work centers on solving challenges that require high availability, high throughput, and ultra-low latency. This role contributes to the development and automation of essential infrastructure components, working alongside a team committed to keeping trading systems operating smoothly at all times. What you will do Support and improve real-time production trading environments Address challenges involving high availability, high throughput, and ultra-low latency Contribute to developing and automating critical infrastructure Collaborate with a team focused on system reliability and uptime Requirements Experience with coding and automation Strong interest in enhancing technology stacks Ability to solve complex technical problems in demanding environments Comfort working where uptime and performance are essential Locations Austin, TX, United States Boulder, Colorado, United States Chicago, Illinois, United States London, United Kingdom New York, NY, United States Seattle, Washington, United States

Galaxy Digital Services is hiring a Vice President of Java Electronic Trading Engineering in London. This position centers on building advanced crypto trading systems for institutional clients. The team works at the intersection of finance and technology, supporting a platform that spans trading, investment banking, asset management, staking, and tokenization technologies. Role overview The London trading technology group is looking for experienced software engineers to help shape the next generation of digital asset trading infrastructure. The work involves designing and developing server-side Java systems that underpin electronic trading activities. What you will do Develop and maintain trading systems using server-side Java Work on components such as order management, market connectivity, low latency messaging, or price distribution Take ownership of technical challenges and drive them to resolution Requirements Strong experience in server-side Java development Background in one or more of: order management systems, market connectivity, low latency messaging, or price distribution Proven analytical and problem-solving skills Ability to work independently and follow issues through to completion Our culture and values Strive for excellence Be selective to ensure effectiveness Maintain high alignment with loose coupling Encourage transparent disagreements Foster independent decision-making Assemble dream teams Galaxy Digital Services values individuals who thrive in a mission-driven, high-performance environment and who are motivated to help shape the future of digital assets and finance.

C# / .NET Developer for Front Office Electronic Trading SystemsJoin MARGO in the UK (London) – Permanent and Contracting OpportunitiesMARGO is a technology-driven consultancy that provides exceptional IT expertise to the financial services sector.We specialize in intricate software engineering environments where performance, reliability, and scalability are paramount: including real-time systems, low-latency architectures, distributed computing, and high-throughput data processing.By joining MARGO, you'll be immersed in challenging Front Office and Trading IT environments while enjoying a close-knit structure with personalized support and tailored training programs.Business ContextYou will be an integral part of the Front Office/Trading IT environment of one of our tier-1 investment banking or trading partners.The teams are responsible for designing and maintaining mission-critical C# / .NET systems that support electronic trading, real-time risk, and analytics platforms across various asset classes including Equities, Fixed Income, Commodities, Foreign Exchange, and Derivatives.These systems run in close proximity to trading desks and electronic trading platforms, adhering to stringent performance, reliability, and production stability standards.The working environment is characterized by:· Real-time and event-driven architectures· Low-latency and high-throughput processing demands· Strong production stability and reliability constraints· Close collaboration with trading, quantitative, and risk management teams· High engineering standards and rapid delivery cycles

Role Overview Talos Trading is hiring a TechOps Engineer - System Administrator in London. This position plays a key part in supporting and improving the technology that powers our trading operations. The work focuses on maintaining and optimizing systems so trading platforms run smoothly and efficiently.

At Jump Trading Group, we are dedicated to pioneering world-class research in the fields of Mathematics, Physics, and Computer Science. We empower extraordinary talents to explore scientific frontiers and apply avant-garde research to global financial markets. Our distinct culture fosters constant innovation, demanding creativity, intellectual honesty, and a fiercely competitive spirit. We believe in collective success and aim to unlock unique individual talents through collaboration and mutual respect. Research outcomes at Jump go beyond delivering superior risk-adjusted returns; we develop and deploy transformative technologies, support start-ups across diverse industries, and collaborate with leading global research organizations and academies to tackle pressing challenges. We are seeking a motivated Software Engineer to join one of our expanding quantitative trading teams. In this role, you will collaborate closely with traders and technologists to manage trading and operational challenges, ensuring the deployment process for the team’s production trading systems is scalable and fault-tolerant. Your responsibilities will include crafting and maintaining a sophisticated Python infrastructure, configuring production servers, and keeping all information sources for production processes current. The ideal candidate will possess a passion for development, a desire to learn about automated electronic trading, and the ability to tackle complex technical problems in a fast-paced and dynamic setting. This position promises exposure to a wide array of intriguing and challenging issues. The trading team views technology as an essential element of their ongoing success, and candidates will have the opportunity to work with cutting-edge technologies.

About Wintermute Wintermute is a pioneering technology unicorn and a leading global force in the digital asset market. As the largest crypto-native algorithmic trading firm, we provide unparalleled liquidity across all major exchanges and trading platforms. Our OTC desk facilitates a broad spectrum of spot and derivatives products, serving over 2,000 counterparties from both crypto-native and traditional financial institutions. We are actively engaged in advancing the blockchain ecosystem, positioning ourselves as a major player in DeFi, along with our investments, partnerships, and incubations.Founded in 2017 by leaders from the trading industry, Wintermute has adeptly navigated various cycles within the crypto industry. Our culture harmoniously blends the rigorous technology standards of high-frequency trading firms with the innovative spirit of tech startups. Discover more about us here.About the RoleWe are seeking a seasoned Product Manager to spearhead the development of our NODE platform, designed to provide seamless crypto trading experiences for institutional clients. This is a hands-on, cross-functional role that will have a significant impact. You will collaborate closely with engineers, designers, core developers, and stakeholders across the business to define, build, and launch a secure, scalable, and high-performance trading platform.

Wintermute Trading is a leading force in algorithmic trading for digital assets, providing liquidity across major cryptocurrency exchanges and platforms. The company works with both established blockchain projects and traditional financial institutions entering the crypto space. In addition to trading, Wintermute supports the broader blockchain ecosystem through investments, partnerships, and project incubation. Founded in 2017 by industry veterans, the team combines technical depth with the agility of a startup. Role overview The Tech Lead for Product Engineering will be based in London and will take a hands-on leadership role in developing the NODE platform. This platform is designed for institutional clients, enabling seamless crypto trading experiences. The position offers direct influence over both the direction and execution of the platform, working in a cross-functional setting. What you will do Lead the development of the NODE trading platform, focusing on institutional users Collaborate with engineers, designers, core developers, and stakeholders Define, build, and deliver a secure, scalable, and high-performance trading product Work across teams to align the platform with business and technical objectives Location This role is based in London.

Wehrtyou is excited to announce an opening for a Trading Systems Engineer within our vibrant Systems team. This team is instrumental in developing and managing the high-speed, dependable infrastructure that drives our global trading operations. As part of our team, you'll play a crucial role in deploying and overseeing all servers in our trading environment, ensuring exceptional performance and reliability. In this role, you'll encounter a range of technical challenges that have a significant impact on our live trading and research operations. Daily tasks will include installing and configuring hardware and software, remote administration, monitoring system performance, testing new technologies, and optimizing system efficiency. We're looking for a passionate and innovative technologist eager to learn and contribute to meaningful projects in a fast-paced and collaborative setting. If you're enthusiastic about working on cutting-edge systems vital to our success, we encourage you to apply!

Join Us as a Software EngineerAt Talos, we are leading the way in institutional trading technology for the digital asset market, established in 2018. Our cutting-edge solutions empower major players in the crypto ecosystem, facilitating seamless trading and settlement processes.Our mission is to promote the widespread adoption of digital assets, creating a trusted and innovative platform that supports the entire trading lifecycle. We pride ourselves on fostering a workplace that values kindness, respect, and inclusivity, where diverse perspectives fuel our progress.As part of a close-knit yet decentralized team of skilled engineers and professionals, you will thrive in our hybrid-friendly environment, with hubs in New York, London, Singapore, Sweden, and Cyprus.As a Software Engineer at Talos, you will be instrumental in developing high-performance systems that bridge the gap between crypto and capital markets. Collaborating with our talented team, you will enhance our backend trading and settlement platform, focusing on areas such as order routing, market data connectivity, position management, and risk systems.We seek passionate engineers eager to take ownership of their work and contribute across the entire development lifecycle—design, implementation, testing, and deployment. If you enjoy tackling complex challenges in a fast-paced environment and are eager to learn from seasoned colleagues, we want to hear from you! Experience in finance or crypto is a plus, but your coding skills, critical thinking, and collaborative spirit are our top priorities.Interested in our engineering culture? Explore Sonic, our inaugural open-source project that enables microsecond network stack latency in Go: https://github.com/talostrading/sonic

Join Our Innovative Team in the Digital Asset MarketFounded in 2018, Talos is at the forefront of providing institutional-grade trading technology tailored for the global digital asset market, empowering many key players within the crypto ecosystem.At Talos, our mission is to foster the widespread adoption of digital assets by effectively connecting institutions to the evolving digital asset landscape. We are dedicated to developing the most innovative and trusted platform, supporting a comprehensive trading lifecycle.Our workplace embodies kindness, respect, and inclusivity, valuing diverse perspectives that contribute to our growth. We believe that each team member brings unique insights and skills that propel Talos towards excellence. In our commitment to collaboration and mutual success, we cultivate a culture of trust and integrity, working together to build something remarkable. Your contributions will be vital to our collective achievements.We are a close-knit yet decentralized team of experienced engineers and business professionals, operating in a hybrid-friendly environment with offices in New York, London, Singapore, Sweden, and Cyprus.About the RoleAs a Software Engineer in our Trading Connectivity team, you will be responsible for designing, developing, and maintaining high-performance backend systems that interface with our extensive provider network. Your role will involve collaborating with product managers, trading support, other engineering teams, and clients to facilitate the integration of new liquidity providers into the Talos network. You will be instrumental in enhancing the platform's scalability, reliability, security, and overall performance, managing the integration process from requirement gathering to deployment.To learn more about Talos's engineering culture, explore Sonic, our inaugural open-source project that enables us to achieve microsecond network stack latency in Go: https://github.com/talostrading/sonic

Join the Digital Asset RevolutionFounded in 2018, Talos is at the forefront of institutional-grade trading technology for the global digital asset market, enabling many prominent players within the crypto ecosystem. Our mission is to facilitate the widespread acceptance of digital assets by connecting institutions to this evolving landscape seamlessly. We are dedicated to creating the most innovative and reliable platform in the industry, supporting the entire trading lifecycle.At Talos, we promote a culture of kindness, respect, and inclusivity, valuing diverse perspectives that contribute to our collective success. Each team member brings unique insights and skills that propel Talos forward, fostering a collaborative environment built on trust, integrity, and mutual growth.As part of our globally distributed team of seasoned engineers and business professionals, you will find a hybrid-friendly workplace that encourages your unique talents and contributions to help us build something extraordinary.Client Services Engineer RoleWe are seeking a skilled Client Services Engineer to support our clients in a dynamic, round-the-clock global digital asset trading environment. This pivotal role will ensure ongoing client success and the overall integrity of our trading systems.

The Vice President of Trading Systems Development at Galaxy Digital Services will lead the architecture and development of high-performance trading systems in London. This role focuses on building and optimizing systems that handle market data ingestion, order routing, and execution, all while reducing latency and ensuring deterministic performance across critical trading workflows. Role overview This position sits at the intersection of software engineering and infrastructure. The main objectives are to minimize latency, maximize throughput, and deliver predictable performance for trading operations. The work directly supports the firm's institutional digital asset platform, which spans trading, investment banking, asset management, staking, self-custody, and tokenization technology. What you will do Design and develop low latency trading systems that process large volumes of market data and execute trades efficiently. Architect solutions for order routing and execution, focusing on high throughput and reliability. Collaborate with cross-functional teams to ensure trading infrastructure meets performance and scalability requirements. Requirements Experience building low latency trading systems. Background in high-performance messaging, especially in Java. Strong understanding of both software engineering and infrastructure as it relates to trading workflows. Our culture Galaxy values high performance, open feedback, and a mission-driven approach. The team brings together deep cryptocurrency expertise and institutional experience, working together to shape the future of Web3 and AI. The company encourages independent decision-making, transparent disagreement, and building exceptional teams. Strive for Excellence Selectivity for Effectiveness Highly Aligned, Loosely Coupled Transparent Disagreement Encourage Independent Decision-Making Build Exceptional Teams

Longshot Systems builds advanced platforms for sports betting analytics and trading. The team blends software engineering, machine learning, and expertise in sports markets to develop trading strategies for clients. Role overview The Sports Betting Trading Analyst joins the modeling team as a subject matter expert in sports and betting markets. This role works closely with software engineers and machine learning specialists to refine and improve trading strategies. Key responsibilities include monitoring client trading activity, analyzing historical trade data, and applying deep knowledge of the sports betting landscape to spot improvements and value leaks in both current and new strategies. What you will do Work with engineers and machine learning specialists to enhance trading strategies Analyze historical trades and client activity to identify areas for improvement Apply expertise in sports and betting markets to find value opportunities and leaks Use data analysis tools, especially Python and Jupyter notebooks, to extract insights Engage with a wide range of sports from a betting perspective Requirements Strong passion for sports and sports betting, ideally with experience as a professional bettor Deep understanding of betting exchanges, prediction markets, and sharp bookmakers, including US and Asian markets Proficiency with Jupyter notebooks and data analysis in Python Strong numerical skills and a solid background in statistics Interest in following a broad range of sports, especially through the lens of betting Working arrangements This position follows a hybrid working model. Thursdays require in-person attendance at the London (Farringdon) office, while the rest of the week offers flexibility. Core hours are 10 am to 6 pm UK time, Monday through Friday, with support for flexible working to help the team meet goals. The role often benefits from engagement during sporting events, and tools are available to review games outside regular hours. Interview process Introductory call (30 minutes) to discuss background and interests First technical interview (90 minutes) for an in-depth discussion of experience Comprehensive assessment day (10:00 am - 6:00 pm) on-site, focused on data analysis using Python to generate insights

C++ Developer – High Frequency Trading SystemsJoin MARGO in London – Exceptional Trading EnvironmentsAt MARGO, we are a technology-driven consultancy that provides premier software engineering services to the world's most demanding financial market environments.We specialize in latency-critical trading scenarios where performance, determinism, and predictability are paramount. Our consultants work in highly specialized trading environments, creating systems that communicate directly with exchanges and market venues under intense time constraints.Business ContextYou will be part of a High Frequency Trading / Low Latency Trading environment collaborating with one of our partners, which may include investment banks, proprietary trading firms, or market makers.Our teams design, build, and operate latency-sensitive trading systems that are directly connected to exchanges, typically deployed in colocated environments.These systems are known for:·Microsecond to sub-microsecond latency constraints·Deterministic and predictable execution paths·Minimal software and network overhead·Direct interaction with market data feeds and order gatewaysRole OverviewWe are seeking a C++ Software Engineer focused on developing latency-critical trading infrastructure.This position is primarily engineering-driven, emphasizing speed, predictability, and control of execution rather than just functional feature delivery.Depending on the environment, you may also interact with C# components utilized outside of the ultra-latency-critical execution path.Key ResponsibilitiesCore HFT EngineeringEngage in the design and enhancement of high-performance trading systems to meet stringent latency requirements.

ionate is hiring a Principal Power Electronics Engineer in London. This senior position centers on creating and refining advanced power electronics solutions to boost energy efficiency and system performance. The work plays a direct role in supporting client projects as the energy sector evolves. Role overview The Principal Power Electronics Engineer will design and develop solutions for complex power systems. The position requires deep technical knowledge and the ability to address client requirements in a rapidly changing industry. Key focus areas Designing advanced power electronics systems Improving energy efficiency and overall system performance Supporting client needs within the energy sector Requirements Extensive experience in power electronics engineering Strong understanding of power systems Ability to develop solutions for evolving client and industry needs