Jobs in London

Qube Research & Technologies is hiring a Low Latency Market Data Developer in London to build scalable tick data platforms using C++23. The role requires 4+ years of experience in high-performance C++ and knowledge of Linux internals. Join a collaborative team focused on greenfield development and HFT systems.

PlayStation Global is hiring a Data Engineer for a 12-month fixed-term contract based in London. The role focuses on designing data pipelines, writing scalable code, and supporting global analytics initiatives. Candidates must have strong SQL, programming, and Linux experience.

PlayStation Global is seeking a Lifecycle Data Analyst in London to join the Game Analytics team. The role focuses on experiment design, scalable measurement frameworks, and exploratory analysis to improve player experiences and product decisions. Candidates need strong SQL skills, experience with A/B testing, and knowledge of live service products.

xAI is seeking a Member of Technical Staff for its new Grok for Government department in London, UK. The role involves engineering and deploying AI capabilities for international government agencies and public sector workflows worldwide. Candidates must have strong software engineering experience, particularly with Python and AI model fine-tuning, and willingness to travel internationally.

xAI is seeking a Member of Technical Staff for Model Training based in London. The role involves tackling critical modeling challenges within a flat, meritocratic organization. Candidates should be power users of AI models with a passion for truth-seeking AI.

xAI is hiring a Member of Technical Staff focused on Reasoning to build frameworks for AI reasoning and distributed reinforcement learning systems. The role requires designing and implementing large-scale systems and developing agent environments. Candidates will participate in a multi-stage technical interview process.

xAI is seeking a talented Software Engineer for the X Money team to build a revolutionary global payment network. The role involves backend development, designing microservices, and collaborating on payments and fraud detection. Candidates should have experience with distributed systems and large-scale consumer applications.

xAI is seeking an exceptional Android engineer to join a small, high-impact team dedicated to creating the world's most valuable AI application. The role requires proficiency in Kotlin, Jetpack Compose, and reactive programming, along with strong product sense and technical excellence.

Klaviyo is hiring a Software Engineer for the Catalog Insights team in London. This role focuses on building data pipelines and product capabilities using Python, Typescript, React, and AWS. Requires 2+ years of SaaS full-stack experience.

Klaviyo seeks a Fullstack Software Engineer II for the SMS International team to expand SMS capabilities and develop RCS services. The role involves building scalable services using Python, Django, Go, and React. Ideal candidates have 3-5 years of full-stack experience and knowledge of high-volume database design.

The Trade Desk is seeking a Software Engineer II for their Creatives team in London. This role involves designing, building, and delivering data-focused products at scale within a distributed system environment. Candidates should have experience with agile teams, distributed systems, and programming languages like C#, Java, Python, or Scala.

Anduril Industries is seeking a Test & Evaluation Engineer for their Maritime team in London. The role involves planning, executing, and reporting testing for maritime and submersible products within a fast-paced, innovative environment. Candidates must have experience in regulated industries like maritime or aerospace and possess strong communication skills.

Dialpad is hiring a Forward Deployment Engineer in London to embed with strategic customers and implement Agentic AI solutions. The role bridges business challenges and technical implementation, requiring 4+ years of experience in technical consulting or sales engineering. Candidates must possess deep AI/ML expertise and strong business acumen.

Software Engineer role on the Scale Platform team at Airwallex, focusing on embedded finance infrastructure and cross-domain product features. Requires 3+ years of Java/Spring Boot experience to build high-scale systems for global businesses.

Lunio is hiring a Product Manager (Full-time) based in London, England, UK. Key expectations include delivering high-quality work, collaborating with teams, and driving innovation. This is an opportunity for a mid-senior level professional to grow their career.

DMC Healthcare is seeking a skilled Data Analyst to join their dynamic team in London, England. This role involves transforming raw data into actionable insights to drive strategic decision-making and enhance service delivery within the Technology sector.

Hamiltonian Dynamics is hiring a Software Engineer for their Defence and Cyber Security division. The role requires UK citizenship, high-level security clearance, and experience with modern tech stacks like Java, Python, or Cloud services. Salary ranges from £40,000 to £85,000 with competitive benefits.

Hilo by Aktiia is seeking an experienced Product Designer to shape user experiences across their digital ecosystem. The role involves designing intuitive products, evolving design systems, and collaborating with cross-functional teams to deliver high-quality solutions. Candidates need 4-8 years of experience in product design with strong visual craft and systems thinking.

Perplexity is hiring an AI Infra Engineer in London to build and optimize large-scale AI training and inference clusters using Kubernetes, Slurm, and AWS. The role involves managing HPC environments, developing orchestration systems, and ensuring high uptime for critical ML workloads. Candidates need strong expertise in Kubernetes administration and distributed systems architecture.