You will work with Azure DevOps Pipelines, CI/CD, Atlassian Confluence, Jira, PowerShell, Python, C#, SQL, and cloud deployments to Microsoft Fabric/Synapse/Azure, Snowflake, Power BI, and application security tools. You will help build automation, CI/CD pipelines, and release processes for in-house developed solutions at the Universities Superannuation Scheme pension scheme.

Palo Alto Networks★3.8 (154)· London

You will work with Prisma AIRS, AI automation platforms, agentic developer tools (e.g., Claude Code), and data platforms (Salesforce, JIRA, Gainsight, Tableau). As a principal strategic advisor and AI Architect for the Prisma AIRS team, you architect scalable security solutions at the intersection of application security, data security, and the AI ecosystem for global enterprise accounts.

Google★4.3 (6.2k)· London

This role involves reviewing and designing secure enterprise architectures across on-premises, cloud, and hybrid environments, applying network engineering and identity management frameworks. You will evaluate secure deployments of AI/ML pipelines and cloud-native ecosystems, using tools like cloud IaC templates and threat modeling methodologies (e.g., STRIDE, PASTA). The Mandiant team provides cyber defense, threat intelligence, and incident response services as part of Google Cloud.

You will use Python, KQL, SPL to build detection logic and automate response. You will protect Writer’s AI platform, training data, and model deployments, detecting threats like prompt injection and model extraction. You will coordinate incident response across teams and hunt for threats in GPU clusters and distributed training environments.

ExxonMobil★3.9 (5.7k)· London

Work as a Full Stack Developer using Python, Node.js, React or Angular, SQL/PostgreSQL/MongoDB, and cloud platforms like Azure/AWS/GCP. You will build and maintain scalable web applications, APIs, dashboards, databases, and data pipelines to support ExxonMobil's Global Trading organization's commercial and trading activities.

You will work across cloud infrastructure, applications, identity systems, and products, using technologies like AWS, GCP, or Azure with infrastructure-as-code, container security, and cloud identity patterns. Helsing is a defence AI company building high-assurance systems for democratic nations. You will identify, assess, and mitigate security risks across the full technology stack.

Kubrick Group★2.8 (13)· London

You will work daily with Microsoft Sentinel, Microsoft Defender, EDR, Microsoft Purview, Intune, Azure, M365 and PowerShell. As a security analyst at a consultancy, you will lead internal Security Operations, incident response, vulnerability management, and security implementations across the Microsoft ecosystem.

You'll design and maintain high-performance backend systems using Python, MongoDB, Redis, and message queue systems for Heidi's AI Care Partner—a platform that automates clinical documentation and care delivery across healthcare systems globally, supporting over two million patient visits weekly. The role requires 5+ years of backend development experience, with expertise in API design, cloud infrastructure, data modeling, and third-party system integration.

You will work with front-end technologies (HTML, CSS, JavaScript, React, Angular), back-end (Python, Node.js), databases (SQL, PostgreSQL, MongoDB), and cloud platforms (Azure, AWS, Google Cloud). You will design and maintain applications supporting commodity trading, market analysis, and risk management within ExxonMobil's Global Trading organization.

You will work with JavaScript, TypeScript, and offensive security tools for penetration testing, reverse engineering, and vulnerability assessments. You join a specialist security team at a global leader in Computer Vision, AI, and biometric identity, acting as the bridge between Security and Engineering to embed security throughout web application development.

You will work hands-on with Java, Kafka, Kubernetes/OpenShift, caching solutions, REST APIs, Spring Boot, SQL, Git, and Gradle/Maven within a high-volume message processing environment for a trading client in the financial services domain.

Doctify★4.3 (6)· London

This Cyber Security Lead role works with AWS, Google Workspace, SIEM, EDR, SSO, IAM, and frameworks including Cyber Essentials and ISO 27001. Doctify is a global platform connecting patients with doctors via verified reviews and professional endorsements. The role owns security strategy and may lead a small internal DevSecOps and IT/endpoint team.

9fin★0.0· London

Build tools, services, APIs, and CLIs on AWS with Terraform. Improve CI/CD, observability (OpenTelemetry, CloudWatch, SigNoz), and development workflows for 9fin's engineering teams. You join the established Platform team to create paved roads and self-service capabilities that accelerate and simplify software delivery.

ExxonMobil★3.9 (5.7k)· London

Full stack developer using React or Angular, Python or Node.js, SQL/PostgreSQL/MongoDB, and cloud platforms (Azure, AWS, Google Cloud). Builds and maintains web applications, APIs, and data pipelines supporting commodity trading, market analysis, and risk management within ExxonMobil’s Global Trading organization.

FDM Group★2.9 (270)· London

Senior .NET developers use C#, .NET 8, ASP.NET Core MVC, CQRS, Domain-Driven Design, Azure DevOps, Git, and CI/CD to build secure web applications and services. The role leads design and delivery for a large-scale Investment Programme platform within the Public Sector, integrating with Dynamics 365 and CRM systems.

LSEG★3.7 (402)· London

Use tools like Burp Suite, command-line tools, custom scripts, and automation; cloud platforms (AWS, Azure, GCP) and containerized environments (Docker, Kubernetes); and secure coding practices in Java/Springboot, .NET, JavaScript/Node, or Python. The role bridges offensive security and engineering by translating penetration test results into remediation guidance for application and platform teams within LSEG's internal offensive security team.

Ocean Infinity★3.0 (5)· London

Leads a team of backend and frontend engineers using C#, Python, React or Angular with TypeScript, containerised microservices (Docker, Kubernetes), and event-streaming services (RabbitMQ, Kafka). The team builds systems for technically complex products that transform operations at sea using IoT and distributed networks. The role reports to the Director of Software Engineering.

You’ll red-team production and pre-production AI agents, working across research, offensive engineering, and product development using Python and systems languages. The team builds security infrastructure for autonomy, targeting attacks like prompt injection, goal hijacking, and tool misuse across agentic systems. You’ll also define the firm’s security research methodology for this early-stage startup.

Universal Music Group★4.0 (408)· London

This Application Security Engineer will use Nessus, Qualys, Tenable, OpenVAS, Python, PowerShell, and AWS/Azure to administer Veritas eDiscovery, Cortex XDR, and VMware Tanzu CloudHealth for Universal Music Group's global IT vulnerability management program. The role drives remediation across a global enterprise, automating reporting and participating in incident response for the world's leading music company.

You will work with Python, Terraform, GitOps, cloud (AWS/GCP), APIs, and AI coding tools like Claude Code to automate security. Lendable rebuilds consumer finance products—loans, credit cards, car finance—to get money to customers in minutes. You'll drive security tooling integrations, guardrails, and automation across the InfoSec team.

The role uses Datadog SIEM, CrowdStrike, Cloudflare, AWS, Kubernetes, Google Workspace, Okta, and AI/agentic workflows. ARQ builds a fintech app in Latin America, with security spanning application security, operations, and governance/risk/compliance.

WPP★3.7 (375)· London

You will govern secure software development across cloud-native platforms, APIs, AI-enabled applications and CI/CD pipelines, using tools like SAST, DAST, SCA and SBOM practices. This role within WPP’s Digital Security & Risk Management team defines secure-by-design standards and partners with engineering and product teams to embed security into development lifecycles.

You will work with AWS, including EKS, and use SAST, DAST, dependency and container scanning tools within CI/CD pipelines, as well as AI and automation. CAIS builds a platform that gives financial advisors access to alternative investments. As the lead, you will own the secure development lifecycle, threat modeling, and security architecture across the engineering team.

Entain★3.0 (2.3k)· London

Design, automate, and maintain infrastructure using Shell, Python/Java, Ansible, Kubernetes, GitLab CI/CD, Prometheus, Grafana, and ELK/Datadog. You will build an Internal Developer Platform (IDP), manage containerized applications, and create Agentic AI workflows as part of the Platform Engineering Team supporting Entain's global sports betting and gaming products.

You will work with AWS and Azure, Terraform, Kubernetes, Wiz, SIEM, and CI/CD tooling for SAST, DAST, and dependency scanning. You will own cloud security posture as part of a Platform Security function for HealthHero, Europe’s largest digital clinic, building an AI-driven digital healthcare platform.