Simon Exley

DevOps Engineer

London, England, United Kingdom2 yrs 8 mos experience

Key Highlights

Expert in offensive security and penetration testing.
Strong foundation in software engineering and API documentation.
Proficient in ethical hacking and cyber threat hunting.

Stackforce AI infers this person is a Cybersecurity Specialist with a focus on Offensive Security and Penetration Testing.

Contact

Skills

Core Skills

Ethical HackingPenetration TestingApplication Engineering

Other Skills

BashC (Programming Language)Cascading Style Sheets (CSS)Cloud ComputingCyber SecurityCyber Threat Hunting (CTH)CybersecurityElectronicsEngineeringHTMLIncident ResponseJavaKali LinuxLinear ProgrammingLingo

About

I currently work as an Offensive Security Tester at ThreatSpike, I apply real-world adversarial techniques to identify security weaknesses before they can be abused. Previously, I was a Penetration Tester at BDO UK LLP. My journey in tech began in Cape Town at impact.com, where I worked as an Associate Software Engineer contributing to API documentation and engaging with technologies such as PHP and HTML. This experience provided a strong technical foundation that continues to support my work in offensive security. Earlier in my career, I gained experience as a Software Engineer Intern. I also served as a Teaching Assistant in Computer Science at Stellenbosch University, helping students understand the fundamentals of Java and Object-Oriented Programming.

Experience

Threatspike

Offensive Security Tester

Jun 2025 – Present · 9 mos · London Area, United Kingdom · Remote

Bdo uk llp

2 roles

Penetration Tester

Promoted

Oct 2024 – Jun 2025 · 8 mos

Penetration Tester with a focus on ethical hacking and offensive security. Proficient in conducting external and internal penetration tests, red team engagements, and performing web application assessments.

Python (Programming Language)Ethical HackingRed TeamingWeb Application SecurityNetwork SecurityPenetration Testing

Junior Penetration Tester

Jan 2024 – Oct 2024 · 9 mos

Ethical HackingWeb Application SecurityRed TeamingBashPython (Programming Language)Shell Scripting+3

Impact.com

2 roles

Associate Software Engineer

Apr 2023 – Oct 2023 · 6 mos · Cape Town, Western Cape, South Africa

PHPHTMLCascading Style Sheets (CSS)Application Engineering

Software Engineer Intern

Feb 2023 – Mar 2023 · 1 mo · Cape Town, Western Cape, South Africa

Conducted quality assurance testing of API documentation to ensure accuracy in order to facilitate handling client requests. In addition, I Identified and reported issues with API documentation and collaborated with development teams to implement necessary improvements.

Stellenbosch university

Computer Science Teaching Assistant

Aug 2022 – Dec 2022 · 4 mos · Stellenbosch, Western Cape, South Africa

Assist the computer science first year students during tutorial sessions, as well as the marking of semester projects. The module focuses on the aspects related to Object Oriented Programming in JAVA.