Susquehanna International Group, LLP

Susquehanna International Group, LLP seeks a London-based Support Engineer to provide high caliber desktop and infrastructure support across the London office. The role covers telecommunications, desktop and application support, AV and web conferencing, onboarding, and hardware lifecycle management. You will work in a fast paced, collaborative environment, coordinating with Dublin and other global teams while handling shifts that may require out of hours support.

Overview Susquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation. Our culture is intellectually driven and highly collaborative, bringing together researchers, engineers, and traders to design and deploy impactful strategies in our systematic trading environment. To meet the unique challenges of global markets, Susquehanna applies machine learning and advanced quantitative research to vast datasets in order to uncover actionable insights and build effective strategies. By uniting deep market expertise with cutting edge technology, we excel in solving complex problems and pushing boundaries together. Susquehanna is looking for a London Support Engineer, who will join our existing London Support team responsible for supporting all teams in Susquehanna's London office, which is primarily a highly advanced Trade floor. This is a very demanding and varied environment that covers a range of User Services for all Susquehanna's London Employees. The role encompasses: Telecommunications support (including IPC Turret, Cisco Phone, and mobile support) Desktop Support (SCCM Builds, all Hardware and Software support) Application Support (desktop trading apps, BBG Terminals, Office to name a few) Web Conferencing and AV administration and support Coordinate and support all visitors, moves, and onboarding Inventory Management Printing Support The role involves working in an energetic, dynamic, and fast paced environment providing full support for all employees in London. You will display a strong technical ability in making critical support judgements while working under pressure. As a member of the London Support team, you will participate in early morning and late evening shifts and may also be requested to support out of hours work where required. You will collaborate with teams locally, in the Dublin office, and across other offices globally to provide excellent support and services to the business. What we're looking for Provide 1st and 2nd level support - working closely with the software development teams and system architects to provide essential primary support for all desktop software and hardware systems - using tools such as Jira, Confluence, Splunk, WinDbg, Check_MK and Wireshark. Continuous evaluation and improvement of support procedures, development and implementation of required/agreed tools and associated runtime environments. Interact with various internal IT support functions to troubleshoot and resolve problems as they happen. Liaise with technology teams in Ireland, US and/or external vendors as required. Maintain our Knowledge Base and ensure all relevant run books are up to date. Experience 3 years+ providing desktop support for software and hardware systems. Development or Trading user support experience is beneficial. Excellent working knowledge of Windows desktop OS Win bit. Ability to monitor and diagnose Desktop issues. Ability to make changes to the system registry for configuring the Windows operating system. PowerShell scripting would be an advantage. Bsc in a technical discipline or equivalent experience. Experience working with SCCM would be an advantage. Excellent knowledge of MS Office (2003/2010/2016/O365), in particular Excel. Strong knowledge of Active Directory. Strong working knowledge of peripherals, printers, graphics cards. Hardware experience (KVM switches, Multiple screens setup 4x 4k screens , ability to replace components such as graphics cards, CPUs etc). Personal Skills Initiative - proven record of seeking continuous improvement and implementing best practice in technology environment. Ability to work under pressure and tight deadlines. Self motivated and creative. Strong communication (verbal and written) - ability to convey technically complex subjects in a clear and concise manner. Attention to detail - thorough in work carried out. Interpersonal - friendly and approachable. Teamwork - working together to meet deadlines. Excellent time management, organization, and prioritization skills. Flexibility - all members of the team participate in early morning and out of hours support schedules. Desire to learn and improve skills and knowledge.

Susquehanna International Group, LLP is searching for talented Software Development Graduates to join their London office in September 2026. You will work closely with experienced technologists, participating in the development of innovative software solutions using languages such as C#, C++, and Python. The role entails not only technical development but also collaboration on real challenges in the trading systems domain, fostering an environment that values learning and creativity.

Overview Susquehanna is seeking talented graduates to join their growing London office in September 2026. As a Software Development Graduate at Susquehanna, you will be working with senior technologists from the beginning of your programme who will act as your mentors throughout. Your role will allow you to get involved with the development teams building cutting edge technologies. You will be working with Software Developers who have a constant focus on evolving a stable, scalable, optimized environment with minimized risk. Our growing team of analysts, developers, infrastructure engineers and support specialists design, deliver and optimize industry leading technical solutions that can process large amounts of data, ensuring high performance and stability. What we're looking for Who you are: Technical: You have strong software development skills in any object oriented language (we use C#, C++ & Python mostly). You also understand algorithms, data structures, and object oriented design patterns. Problem Solver: When it comes to solving problems, you use clear and sound reasoning. You're rational and like to use numbers and data to come up with sensible solutions. Curious: You're eager to learn and develop new technologies. You're inquisitive and creative, questioning the status quo. Communicator: You enjoy building relationships with those you work closely with. You enjoy sharing ideas, expressing your thoughts, and listening to the views of others. Ambitious: You constantly set yourself goals in life and give your all to achieve them. You're not afraid to put in the effort to reach your full potential. Education: You will be graduating in 2026 from a Computer Science, Engineering, Mathematics, Physics or related STEM bachelor's or master's degree. Prior experience in finance or trading is not necessary. What's in it for you: Education: Our education and training is industry leading. Getting a "big picture" perspective of our technology is important. You will also join industry lectures to understand trading and delve deeper into the crucial role that technologists play in Susquehanna. We provide a variety of technical classes to get you up to speed on any technologies that will be needed for success in your role. These include C#, C++, Python. Real Impact: Through a combination of hands on and classroom discussion, you will learn how we solve the real technical challenges of building and maintaining the best trading systems. You will learn about our use of leading edge hardware and software technologies. With other developers and traders, you will collaborate on live challenges, improvements, and technical issues which are key to the ongoing success of the business. Culture: Our non hierarchical culture allows employees of every level to thrive. We are not your typical trading firm - the environment is casual, collaborative and we focus on continuous development, no matter how long you've been in Susquehanna. Note: You must be available to begin in September 2026 to qualify for this role. Susquehanna is an equal opportunity employer. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruitment process, please contact us.

Overview An opportunity exists for aCo-locationOperations (ColoOPs) engineer to joinourLow Latency TradingColoOps Infrastructure Technology team based in London, reporting intothe Dublin Infrastructure Technology team. As part of a multi-skilledteam, you will be primarily responsible for the day to day running of our Colocation sites in London and mainland Europe. Experience working in Financial trading exchange specific Data Centres is necessary for this role. Flexibility is required for the purposes of both travel and collaborating with core trading business hours. You will also be required to travel to our Dublin office, if not based in Dublin, from time to time to build up your knowledge of the Susquehannalow latency Trading infrastructure and requirements for our Colo buildouts. What you can expect As part of ourColoOPS team, yourmain focuswill be onworking ontheday-to-dayonsiteoperationsand optimisations in our trading venues. ThesuccessfulEngineer will help growand optimiseSusquehanna'stradingfootprint and Data Centre presenceinLondonand mainland Europe.You will help implementthefit out and management of new data Centre infrastructures as well as make improvements and upgrades to the current environmentbased on Susquehanna's low latency trading R&D driven enhancements coming from Dublin. Support the day Colo team on site and plan and prepare for the next Colo visit, resolving issues, closing out onJIRAs'and supporting planned maintenance. You will follow ColoOps installation processes and procedures to ensure that all Racking & Cabling of hardware within cabinets is completed to a high standard. Respond to allrelevant trading colocationrelated issues and perform regular scheduled out of hour's maintenance window activities. Receipt, tracking and deployment of server and network hardware. Documentation of Colo infrastructure. Follow and implement processes and procedures that improve stability, performance and availability Liaise with Dublin Low Latency Trading R&D(EMO)team to deliver solutions from our Dublin lab to our production trading colos. As a ColoOps team member you will be responsible for ensuring projects and plans are delivered to agreed scope, milestones and budgets Communicate and collaborate effectively across all departments within Susquehanna. Planned travel to other European Data Centre locations to aid in capacity expansion and new Trading coloprojects. OnCall is expected as part of the role. What we're looking for Technical Degree or equivalent experience Experience working within a high availability & high security Data Centre environment Data Centre, Network and Server installation and support in troubleshooting and break-fix experience Experience following and maintaining Data Centre industry best practices Cable management to an extremely high standard, specific to low latency trading. Measurement of optic fibres using Optical measurement tools Strong Attention to detail Data Centre documentation and asset tracking Arista, Cisco or equivalent network hardware experience Knowledge of power distribution systems Some knowledge of hardware monitoring systems would be advantageous Ability to plan and complete tasks with minimal direction Ability to work at heights and lift server & network hardware regularly Familiarity with Linux to advanced user or basic administrator level Familiarity with Windows Server 2016/2019/2022 to advanced user or basic administrator level Ability to perform basic port configuration on switches A validpassport isrequiredfor the purpose of travel withinthe EU. Susquehanna is an equal opportunity employer. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruitment process, please contact us.