Latest Software Engineering Jobs

Senior Machine Learning Engineer (Safety)

As a Senior Machine Learning Engineer, you will lead the development and deployment of cutting-edge AI systems for high-impact missions in national security and global stability. You will design, build, and deploy scalable, production-grade ML software and infrastructure, ensuring rigorous operational and ethical standards. You will also mentor junior engineers and collaborate with cross-functional teams to solve critical client challenges.

Faculty London, United Kingdom

Permanent

Senior Associate

This role involves managing work streams, collaborating with life sciences stakeholders, conducting open-source analysis, and designing workflows for AI solutions. You will work closely with technical teams to ensure projects meet client needs and contribute to the team's thought leadership.

Faculty London, United Kingdom

Hybrid Permanent

Lead Data Scientist /Deep Learning Practitioner

This role involves leading the development of advanced deep learning models to enhance underwriting capabilities, working with non-traditional datasets, and collaborating with business stakeholders to drive impactful projects. The team focuses on transforming raw data into predictive features and ensuring models are reliable and maintainable.

Capital One Mansfield, Nottinghamshire, United Kingdom

Lead Data Scientist /Deep Learning Practitioner

Lead the development and deployment of deep learning models to enhance underwriting systems, focusing on non-traditional data sources such as text and time series. Design and implement neural networks (e.g., LSTMs, Transformers) to extract predictive features and translate R&D into production solutions. Collaborate with stakeholders and mentor junior data scientists in a hybrid-working environment.

Capital One Nottingham, Nottinghamshire, United Kingdom

Anthropic Fellows Program, ML Systems & Reinforcement Learning

This role involves a 4-month, full-time research fellowship focused on ML systems and performance, with mentorship from Anthropic researchers. Fellows will work on empirical projects using external infrastructure to build scalable ML systems, debug training processes, and support high-performance computing environments. The program emphasizes collaboration, rapid implementation, and producing public research outputs such as papers.

Anthropic United Kingdom

AI Engineer - Startups & Partnerships - Citi

As an AI Engineer on Citi's Startups & Partnerships team, you will build and deploy production-grade AI applications, evaluate emerging AI technologies, and integrate solutions across the enterprise stack. You'll work closely with business stakeholders and startups to rapidly prototype and deliver impactful AI solutions at a global scale.

eFinancialCareers Belfast, United Kingdom

Safety Engineer - Free Tier Abuse

Design and build scalable backend systems for detecting and preventing abuse of free-tier services, focusing on AI-driven moderation and guardrails. Develop production-grade APIs, data pipelines, and observability frameworks while collaborating with ML engineers to deploy models at scale. Own end-to-end technical execution of safety infrastructure across a multimodal AI platform.

ElevenLabs United Kingdom

Remote Permanent

Staff Research Engineer - Multimodal Generative Modelling

This role involves developing advanced multimodal generative models that enable natural, real-time conversational interactions by integrating text, voice, and video. The engineer will lead research and implementation of low-latency, emotionally expressive AI systems, working across pretraining, post-training, and production deployment. Key focus areas include neural codecs, diffusion models, and streaming architectures to enhance realism and interactivity in Synthesia's AI video platform.

Synthesia London, United Kingdom

Remote Permanent

Senior Software Security Developer – Core Platform Services

This role involves designing and implementing security features for a core platform in an AI-driven engineering simulation environment. The developer will act as a security SME, conducting threat modeling, code reviews, and mentoring teams on secure coding practices. Key focus areas include authentication, authorization, and secure CI/CD workflows within a high-performance technical environment.

PhysicsX London, United Kingdom

Principal Security Engineer – DevSecOps and Security Architect

This role involves leading security initiatives across the software development lifecycle, with a focus on integrating security into CI/CD pipelines, conducting threat modeling, and guiding secure design practices. The engineer will work hands-on to automate vulnerability detection, mentor development teams in secure coding, and engage in customer-facing security reviews. It's a high-impact position shaping the security posture of an AI-driven simulation platform in a collaborative, mission-driven environment.

PhysicsX United Kingdom US$200,000 – US$300,000 pa

Hybrid Permanent

FPGA Engineer

This role involves leading FPGA and system-on-chip design for advanced gimbal payload systems, including video processing, sensor interfaces, and real-time control. You will work closely with software, control, and mechanical engineering teams to develop in-house solutions from prototype to production.

Copello Bristol, Bristol (county), United Kingdom £80,000 – £900,000 pa

Hybrid Permanent

Data Engineer

This role involves designing and building scalable data pipelines, integrating data from multiple sources, and developing AI and machine learning models. You will work closely with analysts and business stakeholders to translate requirements into robust technical solutions, while contributing to data quality, governance, and performance optimization.

Tenth Revolution Group Manchester, United Kingdom £35,000 – £50,000 pa

Hybrid Permanent

Staff Software Engineer, AI Reliability Engineering

This role focuses on ensuring the reliability and resilience of large language model serving systems at scale. You'll design service level objectives, build observability tooling, lead incident response, and collaborate across teams to strengthen critical infrastructure paths—from API layers to accelerators. The position demands a systems-thinking engineer passionate about robustness, safety, and cross-team partnership in high-stakes AI environments.

Anthropic London, United Kingdom £325,000 – £390,000 pa

Software Engineer, Cloud Infrastructure

This role involves designing and building scalable development and production platforms that power OpenAI's core products like ChatGPT and the API. The engineer will work on Kubernetes clusters, cloud abstractions, networking, and infrastructure deployment systems, ensuring reliability, security, and scalability. The position includes on-call responsibilities and emphasizes a culture of inclusion, safety, and technical excellence in a fast-paced environment.

OpenAI London, United Kingdom

Permanent

Software Engineer, Platform Systems

Design and build distributed failure detection, tracing, and observability systems to ensure reliable, efficient training of large-scale AI models. Develop tooling to identify performance bottlenecks and faulty nodes across OpenAI’s custom supercomputing infrastructure. Collaborate closely with research and systems teams to evolve platform capabilities for frontier AI workloads.

OpenAI London, United Kingdom

Permanent