Harrington Starr

Senior Sales Director Data & Analytics Hedge Funds & Proprietary Trading London / Hybrid Circa £130,000 + commission A high-growth, market-leading data and analytics provider is scaling its commercial team and hiring a Senior Sales Director to drive new business across hedge funds and proprietary trading firms. This is a senior, quota-carrying role focused on expanding market share, deepening relationships across the buy-side, and closing complex, high-value contracts. You'll be joining a business with a collaborative culture, flat structure, and a product suite trusted by the most sophisticated participants in global markets. What You'll Be Doing Own and grow a high-value new business pipeline across EMEA hedge funds and proprietary trading firms. Prospect, qualify, and close large ACV deals ($250k-$1m+) with sophisticated technical and commercial stakeholders. Conduct deep research into client requirements and position a differentiated data and analytics solution set. Deliver high-impact pitches and demonstrations, tailoring value propositions to multiple senior personas. Work closely with internal product and engineering teams to relay client needs and influence roadmap direction. Mentor and support junior sales colleagues as part of a high-performing commercial function. Manage full procurement, legal, and vendor onboarding cycles with precision and pace. About You You're an established sales leader with a proven track record selling data, fintech or SaaS solutions to hedge funds and prop trading firms. You thrive in a hunter role, are confident navigating complex technical sales, and hold a strong, active network across the buy-side. You will bring: Strong relationships within the EMEA hedge fund & prop trading community. Demonstrable success generating significant new business revenue. Experience negotiating and closing enterprise deals and displacing incumbents. Understanding of trading strategies, market microstructure, and cloud data environments. The ability to influence senior decision makers and act as a trusted advisor. Familiarity with sales methodologies such as MEDDPIC. Excellent communication skills and high attention to detail. Strong CRM discipline (HubSpot or similar). A resilient, self-starting, ownership driven mentality. Why This Role? High visibility within a scaling organisation. Flat, collaborative culture with real autonomy. Clear runway to drive impact and originate meaningful revenue. Competitive compensation and strong benefits package. Hybrid working plus regular social and team based perks. Please contact Ian Bailey at Harrington Starr for full details.

A leading tech recruitment firm is seeking a Machine Learning Engineer who will design and implement large-scale systems focused on training and real-time inference. The role involves collaboration with multidisciplinary teams to enhance models using GPU acceleration and distributed computing. Ideal candidates will possess strong expertise in machine learning, proficiency in programming (Python and C++), and experience in developing low-latency ML systems. Competitive remuneration and progressive opportunities are offered.

Machine Learning Engineer - Large-Scale Systems & Real-Time Inference An opportunity for a Machine Learning Engineer to design and deliver large-scale systems supporting the training, optimisation and deployment of advanced models in high-performance environments. You will collaborate with researchers, software engineers and hardware specialists to build solutions that push the limits of GPU acceleration, distributed computing and automated experimentation. Key Responsibilities Design and implement distributed training pipelines handling high-volume data and complex model architectures Develop low-latency inference systems providing real-time, high-accuracy predictions in production Optimise and extend machine learning frameworks to improve training and inference performance Leverage GPU programming (CUDA, cuDNN, TensorRT) to maximise efficiency Automate model experimentation, tuning and retraining in partnership with research teams Work with infrastructure specialists to optimise workflows and reduce compute costs Assess and integrate emerging open-source tools to enhance ML development and deployment Skills and Experience 5+ years' experience in machine learning with a focus on training and inference systems Strong programming expertise in Python and C++ or CUDA Proficiency with PyTorch, TensorFlow or JAX Hands-on experience with GPU acceleration and distributed training (Horovod, NCCL or similar) Background in real-time, low-latency ML pipelines Familiarity with cloud and orchestration technologies Contributions to open-source ML or distributed systems projects are advantageous What's on Offer Work on technically demanding, high-impact ML systems at global scale Collaborate with a multidisciplinary team of experts in research, engineering and HPC Join a culture that prizes innovation, precision and technical excellence Competitive remuneration, benefits and clear scope for progression

Full Stack Engineer London / Hybrid 4 Days Onsite FTC £70,000 - £85,000 Harrington Starr has partnered with a leading financial services firm who are undergoing a major transformation of its internal technology landscape, modernising a suite of business-critical applications used across front office, compliance and operations teams. They are now looking for an experiencedFull Stack Engineerto join their Technology function and play a key role in migrating legacy SharePoint systems into a modern application portal built with contemporary web technologies. This is a high-impact role working closely with both technical teams and senior business stakeholders. Key Responsibilities Design and build full stack applications usingC#, SQL Server and React Support and maintain live SharePoint applications during the transition phase Work within agile sprint cycles to deliver high-quality solutions Collaborate with business users to translate requirements into technical designs Ensure compliance with cyber security, data protection and regulatory standards Act as a technical escalation point within the Technology team Produce clear documentation and support knowledge transfer to BAU teams Work with third-party vendors where required Key Requirements 3+ years' experience building applications withC#, SQL and React 2+ years' experience developing or supportingSharePointsystems Strong front end skills (HTML, CSS, JavaScript) Experience working in agile delivery environments Exposure to regulated industries (financial services preferred) Strong communication skills and stakeholder management ability Key Benefits Work on a large-scale modernisation programme with real business impact High level of autonomy and technical ownership Exposure to multiple areas of financial services Hybrid working with flexibility Opportunity to shape long-term internal platforms This is an excellent opportunity for a hands onFull Stack Software Engineerto join a highly visible programme of work within a regulated financial environment. You'll be responsible for redesigning and rebuilding core internal applications, ensuring they are scalable, secure and aligned with long term business needs. You'll be involved across the full lifecycle - from requirements gathering and system design through to development, deployment and handover into support. Please apply via the link provided or reach out for a confidential conversation

Desktop Support Engineer (Windows, Exchange, Active Directory, TCP/IP, Windows Server, Client Facing, Finance) Salary - £35,000 - £45,000 A global Consultancy is looking for a Desktop Support Engineer to work in their support team, supporting desktop and office based technology solutions surrounding their multi-technology environment. The successful applicant will be responsible for liaising with other staff members to ensure quick issue resolution, play a role in operational projects and work with the Service desk, Problem Management teams and other technology teams to benefit continual service improvement and ensure high levels of client satisfaction. You will be responsible for going on to client site so you must feel confident to walk onto trading floors. To be considered for the role the following experience is essential: Ability to provide support for the Microsoft environment Knowledge of Active Directory and Microsoft Exchange Ability to troubleshoot issues with Networking (TCP/IP) and Blackberry / iPhones This is a client facing role and client interaction is at the core of the business so applicants must be confident, assured and have excellent communication skills, both written and verbal. This is an excellent opportunity to join a leading and global consultancy that is growing exponentially to cope with increased business demands. The successful applicant will be sent out to client sites from the off and expected to hold their own in some of the leading financial institutions in the space. They will be given the opportunity to run their own projects and develop their skills among some of the leading professionals in the financial services. For immediate inquiries please contact Harriet Lamplugh de Smith at Harrington Starr on /

A leading Tech driven Exchange based in London is expanding its current high performance team in London. You will work on their state of art ultra-low latency trading systems across asset classes (equities, commodities, currencies, fixed income) that trade on global exchanges. The role: Design, develop and test proprietary software in C++ Trading strategy simulation software optimized for distributed computation. Large scale data acquisition, storage, accessibility, and visualization. Real time trade management and risk analysis. Identify innovative solutions to complex problems and advocate for their implementation to your team by communicating your ideas in a clear and concise manner. Collaborate with other software developers, quantitative traders, and researchers in cross-functional team environments. You need: 5+ years of hands on Software Development experience in C++, STL, Boost, Linux. A good understanding of networking, multicasting, UDP. A passion for new technologies and ideas. Strong understanding of data-structures & algorithms. Good working knowledge of Python. You must be living in the UK with full right to work, and you can commit to at least 3 days in the office. (London) Contact Ciara Clarke for a confidential discussion on this role.