Senior Technical Lead 327965

Littlefish; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Littlefish Academy

LinkedIn Learning

Healthcare cash plan

Company pension

Employee referral programme

25 days holiday

Buy/sell annual leave

Career development

Industry-leading technologies

Collaborative culture

Job summary

Littlefish is seeking a Senior Technical Lead for Field and Onsite Services. The role is onsite with customer environments in Greater London. You will lead advanced endpoint, device, OS and identity issues across Windows and Mac estates and guide onsite teams to resolutions.

Responsibilities include complex incident ownership, troubleshooting, guidance on security and policy compliance, and collaboration with resolver groups. Strong communication and documentation skills are essential.

Qualifications

• Significant experience providing advanced onsite or endpoint technical support within enterprise environments.
• Strong hands-on experience supporting both Windows and macOS devices.
• Advanced knowledge of Microsoft 365, Entra ID and Active Directory.
• Strong experience managing Windows devices using Intune or Configuration Manager.
• Experience supporting Apple devices through Jamf or equivalent Apple device management solutions.
• Experience investigating issues using logs and diagnostics.
• Ability to assess options and provide clear recommendations with risks.
• Experience with ServiceNow or similar ITSM platform.

Responsibilities

• Lead diagnosis and resolution of complex Windows and Mac endpoint issues.
• Take ownership of technically challenging incidents from investigation through to resolution.
• Perform advanced troubleshooting across hardware, OS, applications, identity, authentication and connectivity.
• Analyze logs and diagnostic data to identify root causes and propose solutions.
• Collaborate with resolver groups to progress complex technical issues to resolution.
• Provide authoritative technical guidance and evidence-based recommendations to customers and stakeholders.
• Support Microsoft 365, Entra ID and Active Directory environments.
• Manage complex endpoint activities including builds, migrations, deployments and upgrades.
• Troubleshoot device compliance, security, software deployment, certificate and policy-related issues.
• Utilise endpoint management platforms including Microsoft Intune, Configuration Manager and Jamf.
• Assess technical risks and ensure changes meet security and operational standards.
• Produce high-quality technical documentation and knowledge articles.
• Contribute to projects, investigations and service improvement initiatives.
• Stay up to date with modern workplace technologies and security trends.

Skills

Endpoint support

Windows

macOS

Microsoft 365

Entra ID

Active Directory

Intune

Configuration Manager

Jamf

Authentication

Security policies

Documentation

ITSM (ServiceNow)

Scripting (PowerShell/Bash)

Tools

Jamf

Job description

Senior Technical Lead

Come and join the Field and Onsite Services team at the Littlefish Group

Work location: Customer Site (Onsite)

Salary: Competitive, plus excellent benefits

Here at Littlefish, we’re passionate about delivering outstanding user experiences and exceptional IT services for our customers. As we continue to grow, we’re looking for an experienced Senior Technical Lead to join our Workplace Services team.

This is a unique opportunity for a highly skilled technical specialist to become the most senior technical authority within one of our customer environments. You’ll work closely with onsite support teams, acting as the go-to expert for complex endpoint, device, operating system and identity-related issues across both Windows and Mac estates.

If you’re passionate about troubleshooting, technology, continuous improvement and providing expert technical guidance, we’d love to hear from you.

The role and what you’ll be getting up to on a day-to-day basis

As a Senior Technical Lead, you’ll provide advanced technical expertise across endpoint technologies while acting as a trusted adviser to both users and technical teams.

You’ll:

• Lead the diagnosis and resolution of complex Windows and Mac endpoint issues.
• Take ownership of technically challenging incidents from investigation through to resolution.
• Perform advanced troubleshooting across hardware, operating systems, applications, identity, authentication and connectivity.
• Analyse logs, system behavior and diagnostic data to identify root causes and recommend solutions.
• Work closely with specialist resolver groups to progress and resolve complex technical issues.
• Provide authoritative technical guidance and evidence-based recommendations to customers and stakeholders.
• Support Microsoft 365, Entra ID and Active Directory environments.
• Manage complex endpoint activities including builds, rebuilds, migrations, deployments and upgrades.
• Troubleshoot device compliance, security, software deployment, certificate and policy-related issues.
• Utilize endpoint management platforms including Microsoft Intune, Configuration Manager and Jamf.
• Assess technical risks and ensure changes are implemented in line with security and operational standards.
• Produce high-quality technical documentation, troubleshooting guides and knowledge articles.
• Contribute technical expertise to projects, technical investigations and service improvement initiatives.
• Stay up to date with modern workplace technologies, endpoint management practices and security trends.

We need a candidate with

• Significant experience providing advanced onsite or endpoint technical support within enterprise environments.
• Strong hands-on experience supporting both Windows and macOS devices.
• Advanced knowledge of Microsoft 365, Entra ID and Active Directory.
• Strong experience managing Windows devices using Microsoft Intune, Configuration Manager or similar platforms.
• Strong experience supporting Apple devices through Jamf or equivalent Apple device management solutions.
• Experience diagnosing and resolving complex endpoint issues involving authentication, compliance, software deployment, device performance and security policies.
• Strong understanding of endpoint security principles, compliance controls and secure device management.
• Experience investigating technical issues using logs, diagnostic data and system analysis.
• Ability to assess technical options and provide clear recommendations while identifying associated risks and dependencies.
• Experience collaborating with infrastructure, security, application and third-party support teams.
• Strong documentation skills with experience creating technical records, troubleshooting guides and knowledge articles.
• Experience working with ServiceNow or a similar IT Service Management platform.
• Excellent communication skills with the ability to explain complex technical concepts to both technical and non-technical audiences.
• A professional, methodical and customer-focused approach.
• Ability to work independently and manage multiple priorities within a fast-paced environment.

If you bring this, you’ll stand out

• Microsoft, Apple, Endpoint Management or Infrastructure certifications.
• ITIL certification.
• Experience supporting large-scale enterprise or retail environments.
• Experience delivering endpoint migrations and transformation projects.
• Knowledge of automation and scripting technologies such as PowerShell, Bash or equivalent.
• Experience working within highly regulated or security-conscious environments.
• Exposure to modern workplace, device compliance and security frameworks.
• Knowledge of Microsoft Defender, conditional access and endpoint security tooling.

What can we offer you?

• Through our unique training programme, the Littlefish Academy, you can continue to grow your technical expertise and career.
• Access to LinkedIn Learning with thousands of professional development courses.
• Healthcare cash plan including access to GP services and wellbeing support.
• Company pension scheme.
• Employee referral programme.
• 25 days holiday plus bank holidays.
• Buy and sell annual leave scheme.
• Long-term career development opportunities.
• Access to industry-leading technologies and enterprise customer environments.
• A supportive culture built around collaboration, learning and innovation.

Life at Littlefish

Our values define who we are and how we work. We’re looking for people who share our commitment to service excellence and continual improvement.

I am High Performing

I strive to deliver exceptional outcomes, continually improving quality, efficiency and customer experience.

I am Passionate

I care about what I do and bring energy, commitment and positivity to every challenge.

I Have a Can-Do Attitude

I embrace challenges, take ownership and focus on finding solutions.

I am Cyber Conscious

I understand the importance of security and take responsibility for protecting our customers, colleagues and business.

Ready to join us?

If you’re an experienced endpoint specialist who enjoys solving complex technical problems and acting as a trusted technical adviser, we’d love to hear from you.

Littlefish is committed to creating an inclusive workplace where everyone feels valued, respected and able to succeed. We welcome applications from all backgrounds and will support any reasonable adjustments required throughout the recruitment process.