Top Tech Support Jobs in London

Join Luminance as a Technical Support Engineer, managing customer queries and building relationships. You'll ensure customer satisfaction and assist with product queries.

Senior technical lead for Workplace Technology providing Tier 2/3 support, mentoring engineers, owning complex incidents, managing MacOS/Windows device estates (JAMF, Intune/Autopilot), Azure AD/M365 administration, AV/VC systems, security/compliance contributions, documentation, process improvement and runbook automation. Responsible for incident lifecycle, root cause analysis, access governance, asset/on-offboarding, and driving team standards.

Provide onsite end-user IT support: troubleshoot desktop OS and hardware, build/deploy laptops, maintain AV/conference equipment, manage tickets per SLAs, assist with imaging/patching/network changes, maintain asset data, liaise with global teams and local leaders to drive optimizations and technology adoption.

Provide advanced technical support and root-cause resolution for NiCE contact-center SaaS products, analyze logs/packets, mentor peers, own escalations, create KCS knowledge, and collaborate with R&D and internal teams to prevent recurrence and meet SLA targets.

Provide phone and email support to international SaaS customers: investigate and reproduce issues, advise on product use, support onboarding and database implementation, document defects, and contribute product improvement ideas.

Provide front-line technical support for CoStar Real Estate Manager: troubleshoot application and database issues, manage customer cases in Salesforce, respond via email/phone, meet SLAs, escalate and collaborate cross-functionally, and support after-hours/on-call schedules.

Provide high-touch technical support for Cohesity NetBackup Software and Flex Appliances. Troubleshoot complex enterprise data protection issues across traditional platforms, cloud, databases, networking, storage, and operating systems. Manage high-impact customer cases, reproduce environments, recommend best practices, collaborate with internal teams, support renewals, improve knowledge content, mentor peers, and contribute to product and process improvements. Travel for customer visits or meetings is expected to be less than 10% annually.

Provide technical support for IAM services: troubleshoot and resolve incidents, perform root cause analysis, maintain SOPs/knowledge articles, support integrations and provisioning, collaborate with Engineering/DevSecOps, and drive automation and operational improvements while meeting SLAs.

Provide advanced technical support for Windows, macOS, VDI, mobile devices, networks, software, and hardware. Lead complex escalations, root cause analysis, VIP support, service improvements, automation, and project work. Liaise with engineering teams and business stakeholders, participate in on-call coverage, and mentor other support engineers while improving processes and reducing recurring incidents.

Provides remote and in-country monitoring, evaluation, accountability, and learning technical assistance across development and emergency programs. Responsibilities include designing MEAL systems, indicators, data collection tools, budgets, evaluations, dashboards, and learning agendas; supporting donor proposals; deploying to humanitarian responses; training and mentoring staff and partners; generating evidence; and engaging donors, governments, and peer organizations. Requires strong analytical, strategic, facilitation, relationship-management, and communication skills, with up to 40% travel.

The role involves delivering technical support to customers and employees using Linux and Ubuntu, managing cases, troubleshooting, and participating in weekend rotations.

Provide intermediate-level technical support for customers, handling escalations, guiding product installation, documenting cases, collaborating cross-functionally, updating knowledge bases, conducting root cause analysis, training new specialists, and communicating resolution status. Must be proficient in written and spoken German.

Provide senior-level technical support and escalation handling for Avigilon Alta cloud video and access products. Troubleshoot hardware, software, networks and logs, perform root-cause analysis, document cases, collaborate with Dev/Escalations, mentor team members, and contribute to knowledge base and departmental projects.

Investigate and resolve complex platform and integration issues for enterprise merchants, coordinate P1 incident response, monitor observability dashboards, escalate actionable issues to Engineering, and document resolutions to build the knowledge base. Serve as escalation owner and provide overflow support for Delivery Support during peak windows.

Coordinate UK equipment installation and mobilisation projects from sales handover through delivery, installation, training, and customer sign-off. Responsibilities include site surveys, AutoCAD drawings, supplier and engineer coordination, equipment tracking, scheduling, technical sales support, stock monitoring, documentation, CRM maintenance, KPI reporting, and leading complex installations. The role is office-based in Waltham Abbey with UK travel and occasional overnight stays.

Provides advanced technical support to enterprise customers, troubleshooting cloud infrastructure, networking, Linux systems, containers, and security issues. Performs root cause analysis, supports deployments, maintains SLAs, documents solutions, and collaborates with engineering, product, and sales teams. The role also mentors junior staff, contributes to training resources, and helps optimize infrastructure as code, observability, identity management, databases, and customer environments.

Provide technical sales and first‑level support for residential PV+storage products, assist sales and product teams, perform PV system design with PVSyst, develop sales tools and training, support product launches, and advise on installations, certifications and customer requirements.

Provide advanced technical support for enterprise customers using Ditto’s SDK and Cloud products. Reproduce, debug, and escalate complex issues; coordinate production incident response and root-cause analyses; guide developers; build support automation and self-service tools; and communicate customer needs to Product and Engineering. Participate in a 24/7 on-call rotation and serve as a trusted technical advisor to high-profile customers.

Field-based Equipment Engineer responsible for installation, commissioning, planned maintenance and emergency breakdown response of mechanical, electrical and PLC-driven equipment. Manage diary, travel between customer sites in the Lower Midlands/Northampton region, troubleshoot faults, and support automation projects.

Provide technical support for electronic discovery solutions, troubleshoot tech-related issues, manage projects, and develop solutions for clients in the legal industry.

Investigate complex platform, API, and infrastructure issues using logs, metrics, traces, and observability tools. Reproduce production bugs, collaborate with Engineering on root causes and fixes, improve developer experience through documentation and tooling, and design AI-assisted automations and operational workflows to scale support.