Glasswall★0.0· London

You'll work with C++, C#, Python, Assembly, and tools like static/dynamic analyzers, debuggers, disassemblers, detonation chambers, and agentic AI. As a Senior Security Researcher on a small team, you'll investigate threats to Glasswall's Content Disarm and Reconstruction technology through vulnerability research, penetration testing, and malware analysis.

Work with Go, Rust, Python, Java, or C++ and headless browsers (Chrome DevTools Protocol, Playwright, Puppeteer) to build large-scale web crawlers and data pipelines. The team develops infrastructure for acquiring massive amounts of public web data to train AI models, operating a distributed crawler via a bandwidth-sharing network and processing billions of videos, transcripts, and audio files.

Design, configure, and deploy SailPoint IdentityIQ solutions, developing workflows, rules, and connectors. Integrate with Active Directory, LDAP, HR systems, and business applications using Java. As part of AIG’s Identity and Access Management team, you will secure and manage user identities and access privileges.

Work with Python, Java, C++, TensorFlow, Keras, PyTorch, and optionally NLP, computer vision, and cloud platforms (AWS, Azure). The role at Demo Co. involves developing and implementing AI models and algorithms, integrating AI solutions into existing systems, and conducting research to enhance AI application performance.

Fitch Group★4.5 (4)· London

You’ll work with Kubernetes, Docker, AWS, Azure, Datadog, GitHub Actions CI/CD, AWS Bedrock/SageMaker, and script in Python, PowerShell, or Bash. The role embeds within Fitch

Glasswall★0.0· London

Work with DevOps tools (Terraform, CloudFormation, Ansible), cloud platforms (AWS, Azure, GCP), and programming languages (Python, Java, C#), plus CI/CD pipelines, APIs, ICAP, and proxy servers. In this pre-sales role, you will design solution architectures, deliver PoCs, and integrate Glasswall’s document-sanitization security products into customer on-premises, hybrid, and cloud environments.

Google★4.3 (6.2k)· London

Work with Python, Java, Go, C or C++, large language models, prompt development, and conversational AI frameworks. As an AI Solutions Deployment Manager on the Google Cloud Consulting Professional Services team, you guide customers through their cloud journey and help deliver agentic AI solutions for Google’s most strategic global clients.

You'll work with AWS CDK, Kubernetes on EKS, CircleCI/GitHub Actions, Lambda, ECS, Redshift, RDS, Kafka, Flink, Redis/Valkey, Datadog, and TypeScript/Python/Bash. The Platform Engineering team builds the tooling, automation, and infrastructure that development teams use to build, deploy, and run software on Sparta's commodity trading platform.

You will design, develop, and productionise optimisation algorithms and decision-support tools using Python, Java, and/or Rust, employing MILP, metaheuristics, stochastic programming, or reinforcement learning. The role involves building cloud-deployed CI/CD, containerised, and orchestrated solutions for transportation, logistics, workforce scheduling, and media planning as part of cross-functional product squads. You will act as a senior technical lead, mentoring peers and driving engineering standards.

PlayStation★3.8 (164)· London

Design, build, and optimize data ingestion, transformation, and enrichment pipelines using SQL, Snowflake, Python, and REST APIs. You will join the Security Data Analytics team at PlayStation, developing data products and pipelines that help Information Security teams understand security posture and risk trends. This is an individual contributor role; no team size is stated.

Luxoft★4.5 (669)· London

Lead the architecture of production-grade LLM orchestration and multi-agent systems using LangGraph or LangChain, working with Python (asyncio, FastAPI), TypeScript (Next.js/React), AWS (ECS Fargate, Lambda, SQS, Aurora, Neptune), and AWS CDK or Terraform. The team is developing an Agentic AI solution to generate investment insights from sales and research materials for client meetings.

Sumitomo Group★3.7 (463)· London

Work with SQL Server, Azure, Python, C#/.NET, JavaScript, Alteryx, Microsoft Fabric, PowerBI and DealCloud. Build backend databases, ML models and front‑end tools for the Private Markets team’s European LBO direct lending and private credit vehicles. The Data and Analytics team is adding its third key member to lead data‑platform engineering.

NatWest Group★3.7 (1.2k)· London

You will work with GitLab, Artifactory, Ansible Automation Platform, Kubernetes, ArgoCD/Flux, and cloud-native technologies. You will lead the Engineering Platforms team delivering modern software development tools for over 25,000 engineers across the bank, shaping the CI/CD strategy, observability stack, and automation frameworks.

You will work with ReactJS, NodeJS, MongoDB, and AWS. The team builds a web-based SaaS platform for private equity, venture capital, and alternative investment firms to manage investing, fundraising, and operations. This senior role includes leading and mentoring junior engineers.

KPMG★3.8 (9.9k)· London

Develop web applications using C#, ASP.NET Core, TypeScript, React or Angular, and deploy on Azure Kubernetes Service with containers. You'll work on modernising tax and legal services for KPMG, building cloud-first microservices and client-facing portals for a team of 300+ technologists.

Millennium Management★3.8 (21)· London

Software engineers build and maintain distributed systems for intraday risk, trade, and portfolio management using Python, Java, or Rust and cloud platforms like AWS or GCP.

Lead Java Developer (Contract) role using Java 17+, Spring, Spring Boot, Azure, containerisation, serverless tech, Terraform, and Python. Building enterprise-quality optimisation and ML solutions for field operations. Leading development, API design, and tech decisions.

WPP★3.7 (378)· London

Lead Java Developer role at WPP's Satalia building a new logistics optimization platform using Java 17+, Spring, Spring Boot, Azure, serverless and containerized tech, Terraform, and some Python, with API design and tech selection duties. The team develops optimization and ML-based enterprise solutions, and the role leads a development team.

Vodafone★3.6 (3.2k)· London

Work with Java, Spring Boot, React, Angular, Kafka, RabbitMQ, and CI/CD to deliver and oversee complex software components. Lead AI-native engineering practices, ensuring AI-generated code is correct and secure while driving delivery across squads. This role is within Vodafone Intelligent Solutions, a strategic arm of Vodafone Group Plc.

NatWest Group★3.7 (1.2k)· London

You'll work with JavaScript, ReactJS, AngularJS, Python, Java, AWS, GitLab, Google Cloud Platform, Kafka, Hadoop, PostgreSQL, and Snowflake. The Engineering Platforms team delivers a modern software development toolchain for engineers across the bank, and you'll design, produce, test, and implement working software.

Microsoft★4.2 (9k)· London

You'll work with languages including C, C++, C#, Java, JavaScript, or Python and cloud AI platforms (Azure ML, OpenAI) to build production-ready systems. As a Forward Deployed Engineer, you'll embed with UK Defence and Intelligence customer teams, solving their toughest challenges with a security-first mindset.

You will build Microsoft 365, Azure, and AI-enabled solutions using SharePoint Online, TypeScript/SPFx, Microsoft Graph, PnP PowerShell, Azure Functions, Logic Apps, Azure OpenAI, .NET/C#, and Terraform/Bicep, with Azure DevOps/GitHub. Advania UK is a Microsoft partner delivering transformational IT services to clients.

Broadridge★3.5 (1.1k)· London

As a hands-on Lead DevOps Engineer, you'll design and automate low-latency trading infrastructure for financial systems across AWS, Azure, and on-premises, using Terraform, Ansible, Kubernetes, Docker, Jenkins, GitLab, Python, Bash, and Splunk. This technical leadership role involves building CI/CD pipelines, containerizing applications, and integrating AI-assisted tools like GitHub Copilot to improve reliability and operational workflows. You'll also mentor engineers and lead Agile practices using Jira across a global, matrixed organization.

GUARDIAN NEWS & MEDIA★4.6 (7)· London

Build the Guardian Android app using Kotlin, Java, Jetpack Compose, Coroutines & Flow, MVVM, Jetpack libraries, and modular architectures. As a Staff Engineer on the Apps Experience team, you will shape technical direction, architecture, and engineering standards across multiple teams for an app used by millions.