Vulnerability Researcher - Gloucester

Hackajob Ltd; Gloucester; Hybrid; GBP 68,000 - 83,000; Full time

Benefits offered by this job

Flexible hours & part-time options

Minimum 25 days holiday

Private medical and dental insurance

Competitive pension scheme

Cycle to work scheme

Discount cards

Childcare vouchers

Job summary

BAE Systems Digital Intelligence in the UK seeks an Operational Cyber Software Engineer to design, develop and test secure software across multiple languages and tools. The role is based in Gloucester, Manchester or London, with hybrid working options and a wide benefits package.

You will join a 4,500-strong team delivering high-assurance code for national security and commercial clients, with mentorship and structured progression available.

Qualifications

• Familiar with IDEs, debuggers, version control, unit testing, mocking, CI and TDD.
• Understanding of computing principles like stack/heap and compiled vs interpreted languages.
• Proficient in at least one main language (C++, Java, C#) and one scripting language (Python, JavaScript, Perl, PowerShell).
• Understanding of OS internals.
• Able to learn new languages and technologies quickly.
• Strong communication with non-technical stakeholders.
• Eligibility to work in the UK and ability to obtain eDV clearance.
• No prior cyber/defence experience required; training provided.

Responsibilities

• Apply modern development practices to build secure, reliable solutions for our customers.
• Design, develop, test, and document software in line with industry best practices.
• Meet customer requirements while leveraging CI where appropriate.
• Work with a range of languages, tools, and technologies on real-world missions.
• Explore and learn emerging languages and technologies.
• Collaborate with experienced engineers to deliver high-assurance code.
• Take part in peer reviews and technical discussions.

Skills

Development tools & practices

Computing principles

Main languages & scripting

OS internals

Learning new languages

Communication with non-technical teams

UK work eligibility & security clear.

Tools

C#

Java

JavaScript

Perl

PowerShell

Python

Security

Job description

Salary: £75,000 - 75,000 per year

Requirements:

• Familiarity with a variety of development tools (IDEs, debuggers, or version control) and techniques (unit testing, mocking, continuous integration, test-driven development).
• Understanding of computing principles, such as stack/heap distinction and compiled/interpreted languages.
• Proficiency with at least one solution language (e.g. C++, Java, C#) and one utility language (e.g. Python, JavaScript, Perl, PowerShell).
• Understanding of the internals of at least one major operating system.
• Ability to pick up new languages and technologies quickly.
• Ability to communicate and collaborate effectively, including with people from non-technical backgrounds.
• You do not need prior experience in cyber or defence; we will support your success through training and mentorship.
• Security requirement: you must be eligible to work in the UK and be able to successfully achieve an eDV UK security clearance.

Responsibilities:

• Apply modern development practices to build secure, reliable solutions for our customers.
• Design, develop, test, and document software in accordance with business and industry best practices.
• Meet customer requirements while leveraging continuous integration where appropriate.
• Work with a range of languages, tools, and technologies to support real-world missions.
• Explore and learn emerging languages and technologies.
• Work alongside experienced engineers to deliver high-assurance code.
• Take part in peer reviews and technical discussions.

Technologies:

• C#
• Support
• Java
• JavaScript
• Perl
• PowerShell
• Python
• Security

More:

We are BAE Systems Digital Intelligence, home to 4,500 digital, cyber and intelligence experts working collaboratively across 10 countries to help governments, nation states, armed forces and commercial businesses unlock digital advantage in the most demanding environments. This Operational Cyber Software Engineer role is based in Gloucester, Manchester, or London, within our Operational Cyber Group and wider Capabilities division, where we tackle some of the UKs toughest and most meaningful technical challenges. We offer impactful work supporting national security, flexible working including flexible hours, part-time options and a minimum of 25 days holiday per year, plus a benefits package that includes private medical and dental insurance, a competitive pension scheme, cycle to work scheme, discount cards, childcare vouchers, and more. We are an inclusive and friendly team with active diversity and support groups focused on wellbeing, neurodiversity, mental health, and more, and we support career growth through structured progression pathways, mentorship and training. We also embrace hybrid working, giving our people flexibility to work from home, another office or a client site as needed.

• flexible working including flexible hours, part-time options and a minimum of 25 days holiday per year
• private medical and dental insurance
• a competitive pension scheme
• cycle to work scheme
• discount cards
• childcare vouchers
• and more

last updated 36 week of 2026