Latest software engineer Jobs

Staff Software Engineer, Inference

This role involves designing and maintaining large-scale, performance-sensitive distributed systems that serve Claude to millions of users globally. The engineer will work across the full inference stack, building intelligent routing, autoscaling, and deployment systems for AI models running on diverse accelerators across multiple cloud platforms. The position emphasizes real-time system resilience, compute efficiency, and close collaboration with research teams to enable next-generation model development.

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

Staff+ Software Engineer, Safeguards Infrastructure

Build and maintain foundational systems for AI safety, oversight, and intervention mechanisms, focusing on detecting unwanted model behaviors and preventing misuse. Develop infrastructure for data management, evaluation systems, and tooling for human and agentic review while ensuring high operational reliability at scale. Work closely with cross-functional teams to implement robust, multi-layered defenses in a safety-first AI environment.

Anthropic London, United Kingdom £325,000 – £395,000 pa

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

Staff Backend Software Engineer - GO & Python

Build and maintain a high-performance backend platform for AI-driven, multi-physics simulation used by data and simulation engineers. Work on scalable, observable systems in Python and Go, with ownership from development to production. Collaborate closely with domain experts in engineering and machine learning to enable physics-informed model deployment across aerospace, energy, and advanced manufacturing sectors.

PhysicsX London, United Kingdom

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

Senior Full-Stack Software Engineer

Design and implement resilient full-stack features using React, TypeScript, Java, and Spring Boot, with a focus on handling unstable network conditions through advanced client-side persistence and background sync. Integrate AI coding tools to improve development efficiency and code quality, while leading on testing, observability, and secure service-to-service communication. Mentor team members and drive architectural standards in a distributed, operationally intense environment.

Ocado United Kingdom

Hybrid Permanent

iOS Mobile Software Engineer II

This role involves developing and enhancing iOS SDKs for secure document capture as part of Entrust’s identity verification platform. The engineer will focus on building high-quality, accessible camera and image processing features using Swift, while collaborating with cross-functional teams to deliver a seamless end-user experience. Work includes SDK development, on-device machine learning integration, and improving test automation and CI/CD pipelines.

Entrust Portugal

Hybrid Permanent

Agentic AI Software Engineer

Develop and deploy agentic AI and LLM-based applications within a cloud-native environment, focusing on intelligent agent systems and AI platforms. Work closely with scientific teams to support cutting-edge research through scalable backend services and MLOps infrastructure. The role involves strong ownership of development, deployment, and observability in production environments.

Adecco London, United Kingdom

Senior Deep Learning Software Engineer, Inference

Design and optimize high-performance deep learning inference software for NVIDIA's GPU-accelerated platforms, focusing on frameworks like vLLM and SGLang. Improve model serving efficiency for large language and generative AI models across datacenter and edge devices. Collaborate with research and engineering teams to implement cutting-edge algorithms and performance optimizations using CUDA, Triton, and other low-level tools.

NVIDIA PLN 221,250 – PLN 507,000 pa

Remote Permanent

Senior Staff Software Engineer - Delta

Design and build high-performance backend systems for Databricks workspaces, focusing on scalability, low latency, and reliability at massive scale. Lead technical projects, mentor engineers, and contribute to core platform architecture for Delta Lake's write-path operations. Work on production systems handling exabytes of data with a focus on performance optimization and fault tolerance.

Databricks London, United Kingdom

Hybrid Permanent

Senior Staff Software Engineer - Unity Catalog Runtime Enforcement

The role involves leading the development and hardening of the runtime enforcement layer for Unity Catalog, ensuring secure and consistent data access across Databricks' compute engines and clouds. The engineer will drive cross-organizational initiatives, establish operational models, and build automation tools to improve system reliability and security at scale. This position plays a key technical leadership role in shaping how data governance is enforced across a large-scale distributed platform.

Databricks London, United Kingdom

Senior Deep Learning Software Engineer, Inference

This role involves designing, optimizing, and maintaining high-performance deep learning inference software for large-scale language and generative AI models. The engineer will work on GPU-accelerated frameworks like vLLM, SGLang, and FlashInfer, implementing cutting-edge algorithms and performance improvements across NVIDIA's full range of accelerators. Collaboration with open-source communities and cross-team partners is central to advancing model serving efficiency and deployment at scale.

NVIDIA PLN 221,250 – PLN 507,000 pa

AI Security Software Engineer (GenAI & LLM Security)

This role involves designing and building secure platforms to protect enterprise Generative AI and Large Language Model (LLM) applications from emerging threats such as prompt injection and adversarial inputs. The engineer will develop automated security testing frameworks, create robust APIs, and contribute to cloud-native, distributed systems operating at scale. Collaboration with global engineering, cybersecurity, and operations teams is central, with an emphasis on shaping secure AI adoption through resilient software design and best practices in AI security and DevSecOps.

83zero London, City And County Of the City Of London, United Kingdom £85,000 – £90,000 pa

Hybrid Permanent