Senior Software Engineer

Searchability; Cheltenham; Hybrid; GBP 90,000 - 100,000; Full time

Job summary

A leading recruitment firm is seeking a Senior Software Engineer to develop complex software for security applications. The role focuses on delivering robust solutions in unconventional environments and involves deep technical analysis of systems. The ideal candidate should have strong engineering skills in Python and C, with an emphasis on secure development. Applicants must have an active SC clearance and be eligible for DV clearance. This hybrid position offers a competitive salary of up to £100,000 based on experience.

Qualifications

• Strong background in software engineering with a secure development mindset.
• Experience tackling novel, complex, and poorly documented problems.
• Ability to mentor and support junior team members.

Responsibilities

• Design and deliver robustly engineered software in constrained environments.
• Reverse engineer software internals across various platforms.
• Conduct deep technical analysis of operating system and hardware architectures.

Skills

Software engineering

Secure development mindset

Collaboration

Mentorship

Tools

Python

C

Rust

Assembly language

Azure DevOps

Jenkins

GitHub Actions

Job description

Senior Software Engineer – SC Cleared

Location: Cheltenham (Hybrid)

Salary: Up to £100,000 (dependent on experience)

Clearance: Active SC clearance (willing and eligible to go through DV)

To Apply: Email [e-mail]

Overview

An opportunity for a senior software engineer to work alongside security researchers on technically challenging problems with real-world impact. The role involves developing complex software used to analyse, interact with, and expose unintended behaviour in a wide range of platforms and systems. You’ll gain deep exposure to operating system internals and unconventional environments, with a strong focus on offensive security.

The Role

• Designing and delivering robustly engineered software in unusual and constrained environments
• Reverse engineering software internals across a range of platforms
• Re-implementing system components to expose unintended functionality
• Deep technical analysis of operating system and hardware architectures
• Working closely with vulnerability researchers in a multi-disciplinary environment

Essential Experience

• Strong background in software engineering with a secure development mindset
• Comfortable tackling novel, complex and poorly documented problems
• Experience working collaboratively with researchers and engineers
• Ability to mentor and support junior team members
• Eligible to hold UK DV clearance (SC required to start)

Technical Skills

• High-level languages such as Python
• Low-level languages such as C and/or Rust
• Assembly language or strong understanding of low-level architecture internals
• Experience developing offensive security / red team tooling
• Strong understanding of system internals (e.g. Windows, Linux, Android, iOS)
• Familiarity with automated build systems (Azure DevOps, Jenkins, GitHub Actions)