Latest software engineer Jobs

Staff Software Engineer, Node Infra

This role focuses on designing and operating large-scale AI infrastructure, specifically managing the lifecycle of compute nodes across cloud and on-prem environments. The engineer will lead technical strategy for node provisioning, health monitoring, and automated repair systems, ensuring high reliability and efficiency across Anthropic's GPU, TPU, and Trainium fleets. Collaboration with research, inference, and cloud provider teams is central to shaping long-term infrastructure and compute strategy.

Anthropic London, United Kingdom £325,000 – £485,000 pa

Senior Software Engineer

Design and build scalable, cloud-native systems and user interfaces that integrate LLM-powered capabilities into financial workflows. Work closely with AI and product teams to deliver production-ready agentic systems on AWS. Focus on event-driven microservices, React front-ends, and robust APIs using Node.js and TypeScript.

Aveni United Kingdom

Remote 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

Senior Software Engineer

This role involves designing and developing scalable full-stack applications using React, TypeScript, Node.js, and NestJS, with a focus on modern engineering practices such as micro frontends, CI/CD, and secure coding. The engineer will collaborate with product and architecture teams, mentor junior developers, and integrate AI-assisted tools to improve productivity. Work is remote with occasional visits to South Wales.

Sanderson Cardiff, Cymru / Wales, CF10 2AF, United Kingdom £60,000 – £72,000 pa

Remote Permanent

Senior Software Engineer (Infrastructure)

This role involves building and maintaining cloud-native infrastructure for a modern core banking platform. The engineer will develop automation, observability, and orchestration tools to support scalable deployment and management of services, working closely with engineering and SRE teams. Focus areas include CI/CD, disaster recovery, and integration with data and streaming platforms in high-consistency environments.

Thought Machine London, United Kingdom

Hybrid Permanent

Senior Software Engineer (C++ & Swift)

You will develop and maintain the macOS codebase using modern C++ and Swift, contributing to the design and implementation of innovative cybersecurity solutions. The role involves rapid prototyping, structured development of platforms, and mentoring team members. You will work closely with cross-functional teams, participate in code reviews, and help advance Darktrace’s AI-driven methodology for detecting and responding to unknown cyber threats.

Darktrace Cambridge, CB2 3BJ, United Kingdom

Lead Software Engineer | London | |

This role involves leading a small engineering team while remaining hands-on with Java and Spring Boot development, contributing to distributed systems and event-driven architectures. The engineer will collaborate on system design with the CTO and Principal Engineer, improve CI/CD and testing practices, and actively experiment with AI coding agents as part of the development workflow. Work spans AWS, Kafka, microservices, and real-time technologies, with some front-end work in React/TypeScript.

SR2 London, United Kingdom £100,000 – £900,000 pa

Hybrid

Lead Software Engineer

The Lead Software Engineer will design and implement software solutions for underwater robotics applications, working closely with multidisciplinary teams to deliver complex projects. Responsibilities include leading technical innovation, ensuring software quality, and mentoring junior engineers.

Saab Fareham, United Kingdom

On-site Permanent Clearance Required

Senior Software Engineer - AI Products SVP - Citi

This role involves designing and building production-grade AI software solutions for enterprise use within a regulated banking environment. The engineer will work on cutting-edge Generative AI applications such as intelligent document processing, fraud detection, and cross-language translation, turning ambiguous problems into scalable, auditable systems. Collaboration with product, risk, and engineering teams is central, with a strong emphasis on resilience, explainability, and technical leadership.

eFinancialCareers London, United Kingdom

Full Stack Software Engineer

Build and scale AI-powered full-stack systems for global clients in regulated industries, collaborating with data scientists and product managers. Take ownership of frontend and backend architecture, turning machine learning outputs into production-ready solutions. Work in a technically rigorous environment focused on responsible AI deployment and long-term maintainability.

Faculty AI London, United Kingdom

Hybrid Permanent

Senior Forward Deployed Software Engineer

A Senior Forward Deployed Software Engineer at PhysicsX works directly with customers and internal teams to build and deploy AI-driven simulation applications that solve complex engineering problems across industries like aerospace, energy, and semiconductors. The role involves full-stack development, rapid prototyping, and on-site collaboration, with a focus on delivering production-grade tools using physics AI models. Engineers also contribute to the core platform by abstracting reusable components from customer solutions and shaping product direction.

PhysicsX England US$150,000 – US$250,000 pa

Hybrid Permanent

Staff Machine Learning Software Engineer, Research

Lead and shape research initiatives in machine learning for physics-based simulation, focusing on scalable and distributed training of foundation models. Translate research prototypes into robust, production-grade systems using cloud and HPC infrastructure, while mentoring junior engineers and guiding technical direction across the Research team.

PhysicsX London, United Kingdom

On-site Permanent

Principal/Staff Software Engineer

Work on core enterprise platform systems and new API development for Synthesia's AI video platform, ensuring security, scalability, and reliability. Own complex, long-term projects across multiple teams, translating business and regulatory requirements into robust technical solutions. Collaborate closely with product, security, and infrastructure teams while leveraging observability to maintain system health and compliance.

Synthesia United Kingdom US$200,000 pa

On-site Permanent

iOS Mobile Software Engineer II

Design and develop iOS SDKs for secure document capture and identity verification, focusing on high-quality image processing, accessibility, and seamless integration into customer applications. Collaborate with cross-functional teams in an agile environment to enhance mobile SDK performance and user experience across multiple platforms.

Entrust London, United Kingdom

Hybrid Permanent

Senior Full Stack Software Engineer

This role involves leading the architecture and development of full-stack platforms that translate complex data science and AI insights into production-grade software solutions. The engineer will work closely with data scientists and product managers to build scalable, high-performance systems, particularly focused on visualising AI outputs. Emphasis is placed on technical leadership, mentoring junior engineers, and maintaining rigorous engineering standards across cloud environments.

Faculty AI London, United Kingdom

Hybrid Permanent Clearance Required