IT Infrastructure jobs in London

What you would do

• Support live systematic trading operations.
• Ensure smooth day-to-day trading operations.
• Help improve the reliability and efficiency of trading systems and processes.

Skills

What you would do

• Provide level 1 and 2 software and hardware support via telephone, face-to-face, email, and web.
• Troubleshoot and restore routine technical service and equipment problems by diagnosing faults using established processes.
• Process and coordinate timely responses to incident reports, channelling requests for help to appropriate functions.
• Maintain knowledge database and call tracking/service management database to enhance quality of problem resolutions.
• Perform root cause analysis and develop checklists for typical problems.
• Assist users in making more effective use of desktop systems, products, and services.

Skills

What you would do

• Design and implement security controls for AI/ML solutions, LLM-based applications, and cloud infrastructure.
• Assess security, privacy, and compliance risks for AI systems (prompt injection, data leakage, model misuse).
• Develop standards, guardrails, and reference architectures for secure AI use.
• Review AI use cases and architectures for policy and regulatory alignment.
• Build monitoring, detection, and response capabilities for AI-related threats.
• Identify opportunities to use AI for security operations like alert triage and playbook automation.

Skills

What you would do

• Execute approved Windows security patch deployments across workstations and servers through Ivanti Security Controls, including scheduled, phased, manual and out-of-band releases.
• Configure machine groups, agent policies, patch groups, scan templates, deployment templates, distribution settings and reboot behavior within approved standards.
• Monitor deployments to completion, diagnose failed scans, downloads, installations, agent communications and reboots, and complete controlled re-deployment or rollback actions.
• Maintain an accurate patch calendar and deployment scope with offshore patch management consultant, Platform Operations, Helpdesk, application owners and service owners.
• Prepare implementation, validation, rollback and communication steps for each production change and retain evidence.
• Identify, design and implement automation opportunities across patch scheduling, deployment, exception management and reporting to reduce manual effort and improve operational efficiency.

Skills

What you would do

• Act as main point of contact for digital security enquiries within the ST&S business portfolio.
• Implement digital security operating processes aligned to security standards across value stream activities.
• Monitor and assess digital domains using innovative tools to detect and assess threats.
• Develop and implement robust security measures to protect data and systems.
• Partner with customers during security incidents, minimising impact and guiding recovery.
• Champion security awareness across the organisation.

Skills

What you would do

• Provide technical support to users, troubleshoot issues, and resolve technical problems as part of a support team.

Skills

What you would do

• Own and execute the EMEA communications strategy, increasing media visibility and brand awareness across observability, security and AI.
• Lead regional communications for product launches, company announcements and research, developing local angles and coordinating EMEA spokespeople.
• Build sustained regional awareness through proactive storytelling, commentary and thought leadership, developing relationships with technology, business and national media.
• Develop external profiles of EMEA leaders and experts via contributed content, media opportunities and spokesperson preparation.
• Create communications plans for regional events, market expansion and business milestones, coordinating responses to urgent media enquiries and reputational issues.
• Lead PR agencies across priority markets and partner with Marketing, Sales and leadership to set priorities and evaluate programme impact.

Skills

What you would do

• Complete an intensive sales bootcamp covering messaging, discovery, demos, negotiation, and closing.
• Identify opportunities and engage senior decision-makers to build pipeline.
• Shadow Account Executives, join live customer calls, and practice demos.
• Build business cases and win new business.
• Progress to owning a qualified deals target, running discovery calls and demos, and closing opportunities.
• Eventually own a full revenue line, managing deals from start to finish.

Skills

What you would do

• Own threat and vulnerability management capabilities, leading identification, assessment, and remediation of vulnerabilities across the business.
• Configure and operate vulnerability detection and remediation controls and platforms.
• Assess new or emerging vulnerabilities and lead internal efforts to resolve or mitigate, including guidance on emergency patching.
• Serve as product owner for enterprise VM tooling in collaboration with infrastructure and security architects.
• Coordinate vulnerability scanning and penetration testing, and manage technical remediation of findings.
• Scope, prioritise, and lead service improvement initiatives for vulnerability management platforms and processes.

Skills

What you would do

• Investigate and respond to security incidents across endpoint, network, and cloud environments.
• Carry out investigation, containment, and eradication activities, escalating complex or high-priority matters.
• Support forensic acquisition, preservation, examination, and analysis of digital evidence from endpoints and mobile devices (Android, iOS, iPadOS, Windows).
• Conduct threat hunts across endpoint, network, and cloud environments.
• Perform initial malware analysis and support detailed analysis.
• Maintain technical documentation, playbooks, and response procedures.

Skills

What you would do

• Renewing contracts across all product portfolios.
• Managing maintenance and subscription renewals within an assigned territory.
• Generating quotes, including coterminous quotes.
• Collaborating with Core and Specialist Sales Teams to understand customer environments and identify needs.
• Coordinating with channel partners to ensure positive customer experience.
• Following up with Regional Sales Managers, Inside Sales, channel partners, and end-users to close renewals before expiration.

Skills

What you would do

• Deploying, documenting and supporting security controls at scale across Windows and macOS platforms.
• Contributing to the vulnerability management programme, detecting and mitigating vulnerabilities.
• Providing security guidance and support to the IT department and IT Operations during security incidents.
• Developing technical and non-technical solutions with engineering teams to address security concerns.
• Contributing to operational playbooks, procedures, guidelines and technical security standards.
• Acting as a liaison between IT Security and other internal technology groups to communicate pertinent information.

Skills

What you would do

• Lead technical assessments into reported database anomalies, determining whether sufficient evidence and technical access exist to support a defensible, in-depth investigation.
• Assess and document historical concurrency anomalies (lost updates, stale writes, partial transactions).
• Evaluate the scale, complexity, and forensic relevance of PostgreSQL data structures and transaction model.
• Assess availability and completeness of historical artefacts including database records, WAL, logs, backups, and audit data.
• Reconstruct historical transaction activity and establish reliable timelines for reported anomalies.
• Identify principal technical and evidential risk areas warranting deeper forensic examination.

Skills

What you would do

• Conduct comprehensive audit assessments of IT infrastructure, cloud environments, application stacks, and third-party vendor systems to verify control effectiveness.
• Map internal control frameworks to industry standards and regulatory mandates (e.g., ISO 27001, NIST CSF, SOC 2, HIPAA, GDPR, PCI-DSS).
• Act as the primary liaison between technical teams and external/internal auditors during annual cyber audits and regulatory examinations.
• Define, execute, and document technical audit test plans, sampling strategies, and evidence collection workflows.
• Conduct cybersecurity risk, audit, and assurance assessments with Technology, Audit, and Risk teams.
• Identify and report on non-compliance with risk frameworks.

Skills

What you would do

• Create and implement functional software solutions.
• Collaborate with upper management to define software requirements and lead operational and technical projects.
• Oversee sub-departmental projects.
• Drive software change and release management processes to enhance SDLC maturity.
• Ensure software deliverables meet quality standards, adhere to timelines, and prioritize security.
• Contribute to Agile Scrum and ensure deadlines and production quality.

Skills

What you would do

• Lead and support functions within the ETRM Service Catalogue, including real-time risk oversight, technology targeted risk assessments, Material Risk Identification, Regulatory Audit and Client Engagements, and Risk Reporting.
• Advise and/or support on technology risk and regulatory matters for the EMEA community.
• Collaborate with ETRM Risk professionals to align with broader Enterprise/Operational Risk Management Programs.
• Develop and maintain EMEA relationships with Business and IT stakeholders.
• Partner with EMEA ERM team to proactively identify, monitor, and challenge technology risks and non-compliance.
• Evaluate IT Security risks arising from control inefficiencies in EMEA Legal Entities.

Skills

What you would do

• Overseeing and providing thought leadership on delivery of novel and complex AI safety evaluations and red teaming projects for clients.
• Building trusting relationships with customers, internal safety data scientists, and technical partners including frontier labs.
• Developing and executing proposals to grow AI safety and governance work across sectors.
• Advising clients on AI safety strategy and technical implementation.
• Mentoring and developing team members.
• Supporting wider delivery work as a Senior Manager to ensure commercial impact.

Skills

What you would do

• Develop statistical fraud models and scores (consumer fraud, commercial fraud, synthetic fraud, payment intent models).
• Blend data sources including consumer bureau data, postcode insights, and transactional data to improve model predictiveness.
• Apply traditional techniques like logistic regression and modern AI/ML methods such as gradient boosting, random forests, and clustering.
• Design and run champion/challenger tests for new fraud scores using cloud-based tooling.
• Create new characteristics and attributes to maximize model predictive power.
• Investigate segmentation and sub-populations to optimize score performance.

Skills

What you would do

• Provide first line support for end users on desktop, software, hardware, telecom and video conferencing issues.
• Classify and prioritize requests and incidents.
• Resolve network connectivity, projector and MS Teams issues.
• Upgrade, repair and maintain computer networks and workstations.
• Monitor system performance and troubleshoot issues.
• Support system upgrades with new releases.

Skills

What you would do

• Support risk and controls assessments, including control walkthroughs, evidence gathering, gap analysis and remediation tracking.
• Coordinate evidence and actions for external audits and compliance assessments (ISO 27001, SOC 2, Cyber Essentials).
• Maintain control documentation and audit evidence.
• Track risk-treatment actions, owners and deadlines, validate closure evidence and escalate delivery concerns.
• Create and maintain security policies, standards, procedures and control descriptions.
• Maintain security metrics, dashboards and action trackers covering audit findings, remediation, risk exceptions and third-party risk.

Skills