Technical Consultant Windows - Security

Client Server Limited; City Of London; Hybrid; GBP 81,000 - 99,000; Full time

Job summary

Client Server Limited seeks a Technical Consultant (Windows Security Pre‑Sales) in London with hybrid/remote work options. The role involves leading technical workshops, architecture discussions and PoCs, while delivering tailored product demos and ongoing customer guidance.

Travel to client sites is required, primarily in London and the M4 corridor. The ideal candidate has strong Windows Server and Microsoft product knowledge, plus data security and threat modelling expertise.

Qualifications

• Experience with Windows Server and Microsoft product stacks.
• Strong background in data security, risk analysis and threat modelling.
• Broad technical foundation: Linux, networking, firewalls, VPNs, Docker and microservices.

Responsibilities

• Lead technical workshops, proofs of concept and architecture discussions.
• Deliver product demonstrations tailored to customer needs.
• Provide technical guidance throughout the sales lifecycle from pre‑sales to implementation.

Skills

Windows Servers

Microsoft products

Data security

Threat modelling

Networking

Firewalls

VPN configuration

Docker

Microservices

Cloud (Azure/AWS)

Tools

Docker

Job description

Technical Consultant (Windows Security Pre-Sales) London / WFH to £90k + OTE

Do you enjoy working with clients and have a strong technical knowledge of Microsoft products?

You could be progressing your career, working on cutting edge security / encryption products at a successful and expanding software house that provide cyber security products to a range of finance, government, defence, law enforcement and pharmaceutical companies.

As a Technical Consultant you'll combine technical expertise with commercial awareness, acting as a trusted advisor throughout the customer lifecycle, from pre-sales and solution design through to implementation, training and ongoing success.

Collaborating with customers, partners, Product Management and Engineering teams, you will lead technical workshops, proof of concepts, architecture discussions and product demonstrations, ensuring solutions are tailored to customer needs and delivered to the highest standard. You'll become a subject matter expert across the product portfolio, providing technical guidance during the sales process while helping customers realise long term value from their investment.

This is a highly collaborative and influential role, offering the opportunity to shape product direction by feeding customer insights back into Engineering and Product teams. You'll also support partner enablement, deliver technical training, identify new business opportunities and play a key role in driving product adoption and market growth.

Location / WFH:

You'll be primarily working from home but must be flexible to travel to client sites, mainly London and M4 corridor although sometimes further afield.

About you:

• You have experience in a similar Technical Consultant, Pre-Sales Engineer or Solutions Engineer role
• You have a deep understanding of Windows Servers / Microsoft products
• You have a broad technical understanding of data security, risk analysis and threat modelling techniques used in the Information Security space
• You have a high level knowledge of Linux, networking, firewalls, VPN configuration, Docker, microservices, Cloud (Azure / AWS)
• You're proactive, analytical and have advanced problem solving abilities
• You must be eligible to achieve DV Clearance (i.e. British citizen or resident for a minimum of 10 years)

What's in it for you:

• Salary to £90k + OTE
• 25 days holiday, rising to 27 in two years, ability to buy 5 days per year
• Privtae Medical Care, Life Cover, Pension
• Subsidised gym membership
• Hybrid working