Founding Software Engineer | Cybersecurity Start-Up | London

Oho Group; Greater London; On-site; GBP 90,000 - 150,000; Full time

Benefits offered by this job

Competitive salary

Meaningful equity

Ground-floor opportunity

Job summary

Oho Group is seeking a Founding Software Engineer to join a London-based cybersecurity startup on day one. You will design and build core systems, span the stack, and work directly with the founders on product direction and technical strategy.

With 5+ years of software engineering experience and proficiency in Python, C#, Go, or Java, you will own critical components and help shape the company’s future in a fast-moving, ambiguous environment, complemented by meaningful equity.

Qualifications

• 5+ years of software engineering experience in a professional environment.
• Proficiency in one or more of: Python, C#, Go, or Java.
• Experience delivering end-to-end development across the full product lifecycle.
• A builder’s mindset - you thrive in fast-moving, ambiguous environments.
• Excellent problem-solving ability and a collaborative approach.

Responsibilities

• Play a key role in designing and building core systems from scratch.
• Work across the stack to solve complex, high-impact security challenges.
• Collaborate directly with the founders on product direction and technical strategy.
• Take real ownership - your decisions will shape the company’s future.

Skills

Python

C#

Go

Java

Job description

Founding Software Engineer | Cybersecurity Start-Up | London

Help build the future of cybersecurity from day one.

Founding Software Engineer required for an early-stage cybersecurity start-up on a mission to transform how organisations secure their data and infrastructure. Built by a founding team with a strong track record of building and scaling successful companies in security, this is a rare opportunity to join at the ground floor and shape both the product and the culture.

What you’ll do

• Play a key role in designing and building core systems from scratch
• Work across the stack to solve complex, high-impact security challenges
• Collaborate directly with the founders on product direction and technical strategy
• Take real ownership - your decisions will shape the company’s future

About you

• 5+ years of software engineering experience in a professional environment
• Proficiency in one or more of: Python, C#, Go, or Java
• Experience delivering end-to-end development across the full product lifecycle
• A builder’s mindset - you thrive in fast-moving, ambiguous environments
• Excellent problem-solving ability and a collaborative approach

Why this role?

• Competitive salary + meaningful equity
• Join a world class founding team with a proven start-up pedigree
• Make a meaningful impact from day one - no red tape, no layers
• Be part of solving some of the most critical challenges in cybersecurity

Founding Software Engineer | Cybersecurity Start-Up | London