> Markdown version of [/jobs/ext/3179212-security-engineer](https://www.wearedevelopers.com/jobs/ext/3179212-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Security Engineer - **Company:** Nucleus Financial - **Location:** London, UK - **Contract:** Permanent contract - **Skills:** System Configuration, Monitoring of Systems - **Published:** September 2, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=07153dffe50014f7 ## About the Role * Experience in a client services or client operations role, within wealth management, investment platforms or outsourced operations. * A track record of delivering high-quality client support, with the ability to handle queries and incidents calmly and professionally. * Familiarity with ticketing, SLAs and service management processes, with a structured approach to triage and escalation. * Strong attention to detail, comfortable managing complex, recurring processes and configuration changes without losing accuracy. * Confident communication skills, with the ability to keep clients informed and manage expectations during incidents and change. * Good technical aptitude, comfortable navigating platform technology and supporting system configuration and reporting. * Strong organisational skills and the ability to manage multiple priorities across a portfolio of clients * A proactive, solutions-oriented mindset, focused on resolving issues quickly and preventing them from recurring. * A genuine passion for delivering an outstanding client experience and a desire to grow within a high-performing team. ## Description As a Client Service Consultant, you will be the first point of contact for client issues, queries and day-to-day support needs. You will handle queries and investigate issues, manage tickets through to resolution, and keep clients informed and supported across the Platform and our outsourced investment operations. This role sits at the front line supporting our clients, combining hands-on service delivery with strong ownership of issues, queries, change requests and client comms and expectation management. You will work closely with colleagues across Product, Technology and Operations to resolve issues quickly and prevent them from recurring, reporting directly into a Client Service Manager. This role suits someone who is highly organised, calm under pressure and passionate about delivering outstanding client service, with the attention to detail to manage complex, recurring processes accurately. Responsibilities Client Support & Service Delivery First-Line Client Support Act as the primary contact for client issues, queries and day-to-day support needs, including query handling, issue investigation and user access. Generate reports and support system configuration changes such as fee setup, escalating where appropriate. Ticket Management & Resolution Triage and resolve client tickets, owning each through to completion and keeping clients updated throughout. Manage escalation to second and third line teams as appropriate, ensuring nothing falls through the cracks. Day-to-Day Client Support Own all monthly client processes, such as report generation, and collate information for annual due diligence activity. Manage routine client communications, including product releases and service updates. Incident, Change & Service Management Incident Management & Communication Manage the flow of information during incidents, engaging the right teams and keeping clients updated at every stage. Co-ordinate the response through to resolution, ensuring clients receive clear and timely communication throughout. Root-Cause Analysis & Prevention Facilitate root-cause analysis and ensure follow-up actions are owned and completed. Drive continuous improvement to prevent repeat issues and strengthen service quality. Change Request Management & Scheduling Gather initial requirements and triage change requests, raising them for consideration at the product forum. Confirm estimates and prioritisation, and ensure timescales are agreed and shared with the client. Service Monitoring & Risk Mitigation Track SLAs, KPIs and service trends, identifying and mitigating service risks before they escalate. Maintain a proactive view of service health across your client portfolio. Service Reporting & Governance Manage service dashboards and prepare internal and external service reports on SLAs and service status. Prepare accurate monthly invoices and support service governance processes. How success is measured Success in this role is measured across five core metrics: First Response Time, First Contact Resolution, Average Handle Time, Pass-Through Rate and Client Satisfaction.