Founding Customer Success Engineer | Cybersecurity Start-Up | London

Oho Group; Greater London; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Equity and meaningful ownership

Direct influence on product strategy

High visibility within the company

Job summary

A high-growth cybersecurity start-up is seeking a Founding Customer Success Engineer to scale customer success efforts. In this pivotal role, you'll drive onboarding excellence and ensure deep technical adoption among enterprise customers. The ideal candidate has a strong background in cybersecurity or cloud-enabled tooling and excels in post-sales execution. This foundational position offers opportunities for significant influence and ownership. Join a company with a strong growth trajectory and established customer base.

Qualifications

• Deep technical skills in Customer Success Engineering.
• Experience in cybersecurity or cloud-enabled tooling.
• Background in software or systems engineering with customer-facing technical roles.

Responsibilities

• Formalise and scale customer success processes.
• Ensure excellence in onboarding for enterprise customers.
• Drive deep technical adoption and long-term expansion.

Skills

Technical Customer Success Management

Cybersecurity Expertise

Cloud Security Knowledge

Post-Sales Execution

Software/System Engineering Background

Job description

Founding Customer Success Engineer | Cybersecurity Start Up | London

Founding Customer Success Engineer required for a high-growth cybersecurity start-up with an established and expanding enterprise customer base.

The product has traction. Customers are live. Revenue is growing.

The next phase requires a technically strong post‑sales leader to formalise and scale customer success, ensuring onboarding excellence, deep technical adoption, and long‑term expansion across cloud security environments.

This is a foundational hire at an inflection point: established product‑market fit, real customers, and meaningful upside.

Who You Are

• Deeply technical Customer Success Engineer who enjoys complex environments and learning new technologies
• Experienced within cybersecurity or cloud‑enabled developer tooling
• Background in software or systems engineering, now excelling in customer‑facing technical work
• Experienced building structure from scratch
• Strong in post‑sales execution
• Deep cloud security expertise
• Thrive in ambiguity – decisive, adaptable, and quick to iterate based on customer feedback

Why Join

• Established enterprise customer base
• Strong growth trajectory and product traction
• Foundational, high‑visibility hire
• Direct influence on product and go‑to‑market strategy
• Equity and meaningful ownership
• Opportunity to architect the Customer Success function at scale

If you’re a technical CSE ready to build and scale a function within a growing cybersecurity company, let’s chat.