Machine Learning Jobs

Machine Learning Engineer

Design and deploy machine learning and generative AI systems for national security applications, transitioning models from experimentation to production using AWS-based MLOps and LLMOps platforms. Develop scalable ML pipelines, LLM-powered capabilities, and robust monitoring systems while ensuring compliance with governance and responsible AI principles. Collaborate with cross-functional teams and mentor junior engineers in a high-impact, security-cleared environment.

eFinancialCareers London, United Kingdom £65,000 pa

On-site Permanent Clearance Required

Quantitative Research Scientist - Systematic Trading

This role involves conducting original quantitative research to develop statistical and mathematical models for trading, using large, noisy datasets and proprietary infrastructure processing billions of market events daily. The scientist will translate research into production code, peer-review ideas, and explore unconventional approaches with potential investment value. The position emphasizes deep mathematical problem-solving, programming rigor, and collaboration in a research-driven, intellectually autonomous environment.

eFinancialCareers London, United Kingdom

R&D Actuary Personal Lines

This role involves developing and enhancing statistical and machine learning models to improve risk and profitability predictions for a specialist motor insurer. The actuary will analyse complex datasets to identify growth opportunities, support pricing strategy across private motor, telematics, commercial vehicle, and taxi insurance, and collaborate with data scientists to drive pricing innovation. Key responsibilities include predictive modelling, translating technical insights for stakeholders, and advancing pricing capabilities using advanced analytics.

eFinancialCareers London, United Kingdom

Senior Data/AI Engineer - Manager

Lead technical workstreams in data and AI transformation programmes, designing scalable data pipelines and AI solutions including generative AI with LLMs. Mentor junior engineers, collaborate with stakeholders, and deliver high-quality systems across cloud platforms. Role involves strong technical leadership, solution architecture, and hands-on development in Agile teams.

eFinancialCareers Manchester, United Kingdom £60,000 – £77,000 pa

Associate Director - Lead AI Architect

Lead the design and delivery of production-grade AI and Generative AI systems for high-impact public sector and security programmes. This hands-on technical leadership role involves architecting scalable, secure solutions, building MLOps/LLMOps practices, and mentoring engineering teams. Focus on translating complex challenges into practical, responsible AI systems using cloud platforms and modern tooling.

eFinancialCareers London, United Kingdom £90,000 – £120,000 pa

Senior AI/ML Engineer

Design and build scalable AI systems using large language models and machine learning to power intelligent learning experiences such as personalised tutoring, content generation, and adaptive recommendations. Collaborate with product, data, and learning teams to deliver production-grade AI features while establishing best practices in AI governance and engineering standards. Mentor engineers and help shape the technical direction of the platform’s AI strategy.

eFinancialCareers London, United Kingdom £90,000 – £110,000 pa

Hybrid Permanent

Manager, Software Engineering

Leads a software engineering team building and scaling Mastercard's Authentication Decisioning platform, which delivers real-time risk and authentication decisions using AI, rules engines, and data enrichment. Focuses on operational excellence, secure development practices, and modernisation of a high-availability system within a global payments ecosystem.

Appcast Enterprise Dublin, Alba / Scotland, IV17 0YF, United Kingdom

Manager, Software Engineering

Leads a software engineering team building and scaling Mastercard's Authentication Decisioning platform, which delivers real-time risk and authentication decisions using AI, business rules, and data enrichment. Focuses on operational excellence, secure software development, and cross-team collaboration to support large-scale, high-availability payment authentication systems.

Appcast Enterprise Ashbourne, United Kingdom

Manager, Software Engineering

Lead a software engineering team building and operating Mastercard's Authentication Decisioning platform, a critical component of its global authentication ecosystem. Focus on delivering scalable, secure, and resilient AI-driven decisioning systems for real-time transaction risk assessment and identity verification at massive scale. Emphasis on technical leadership, operational excellence, and cross-functional collaboration in a high-availability environment.

Appcast Enterprise Bray, United Kingdom

Software Engineer - Morgan McKinley

Design, develop, and maintain scalable software solutions using Java and AWS within a cloud-first environment. Work on system-level challenges, third-party integrations, and the embedding of AI capabilities into platforms. Collaborate with architects and product teams to enhance performance, scalability, and reliability of distributed systems.

eFinancialCareers Manchester, United Kingdom £600 pd

Treasury AI Engineering Lead - NatWest Group

The role involves leading the adoption of Generative AI and machine learning in Treasury operations, focusing on use cases like liquidity forecasting, capital optimisation, and risk management. You will design and deliver AI-driven solutions, oversee cloud migration for scalable experimentation, and promote responsible AI practices. The position emphasizes technical leadership, innovation, and cross-functional collaboration within a financial services environment.

eFinancialCareers London, United Kingdom

Quantitative Researcher - Systematic Equities

Develop and test alpha-generating strategies for systematic equity portfolios using statistical techniques, machine learning, and large-scale data analysis. Work closely with portfolio managers to transition research into live trading, building predictive models and robust research infrastructure in Python. Focus on rigorous backtesting, signal validation, and collaborative research in a high-impact environment.

eFinancialCareers London, United Kingdom

Elite Quant Researcher -Global Systematic Investment Firm/ London/ USA

This role involves researching and developing mathematical and statistical models for systematic investment strategies, using advanced techniques in machine learning and large-scale data analysis. The researcher will work across the full lifecycle—from hypothesis generation and model testing to production implementation—within a collaborative environment alongside portfolio managers and engineers. The position emphasizes original, rigorous research applied to global financial and alternative datasets.

eFinancialCareers London, United Kingdom

Senior Data Scientist- Innovative AI Start-Up

This role involves leading analytical standards for evaluating high-stakes AI systems, with a focus on fairness, transparency, and responsible deployment. The Senior Data Scientist will design evaluation methodologies, conduct rigorous statistical analysis, and collaborate closely with founders and product teams. As an early hire, they will shape the evolution of the data function within a small, mission-driven AI auditing startup.

eFinancialCareers London, United Kingdom £120,000 pa

Hybrid Permanent

Senior Operational Technology Consultant Cyber

£85,000.00 GBPOnsite WORKINGLocation: Central London, Greater London - United Kingdom Type: PermanentSenior Operational Technology Consultant (Cyber)Salary: Up to £85,000 (Based on London)Location: Multiple UK based locations available (Hybrid)We are supporting a leading global digital consultancy in recruiting aSenior Operational Technology...

eFinancialCareers London, United Kingdom