Data and Protocol Analyst

DEFENCE SCIENCE AND TECHNOLOGY LABORATORY; Idmiston; On-site; GBP 29,000 - 34,000; Full time

Job summary

A national security organization in Idmiston seeks a dedicated individual to analyze data and support cyber operations. The candidate will work with programming languages like C/C++ or Python, focusing on communication protocols and data analysis tools. This role requires UK nationals with high security clearance and offers a salary range of £29,001 - £33,658 depending on experience, along with a Civil Service Pension.

Benefits

Civil Service Pension with employer contributions

Skill-set allowance (£1,000-£4,500 per annum)

Qualifications

• Experience with at least one high-level programming language.
• Interest in analyzing communication protocols.
• Knowledge of data encoding techniques.

Responsibilities

• Use tools for data analysis including network captures.
• Develop and modify tools for protocol analysis.
• Create a secure working environment as per Dstl policies.

Skills

High-level programming language (C/C++ or Python)

Knowledge of computer networking

Experience with data analysis tools (Wireshark, Ghidra)

Education

Relevant STEM degree or equivalent experience

Job description

Overview

Do you have a passion for data, cyber and keeping people safe? Dstl is growing within cyber. You will become part of a hardworking team central to keeping the UK safe providing critical data support. As a persistent individual, problem solver and someone who questions norms, you will fit in. Dstl will give you the chance to work on unique capabilities, develop your technical knowledge and work with friendly colleagues to protect the UK through supporting current and future cyber operations.

Find out more within the candidate pack on Civil Service Jobs. Dstl recognises the importance of diversity and inclusion and is committed to building an inclusive working environment in which each employee fulfils their potential and maximises their contribution.

Responsibilities

• Use a range of tools and techniques, depending on the type of data and the data bearer; which might include high-level network captures (Ethernet, Wi-Fi), on-board data bearers (UART, I2C), or data at rest on a system (data logs, configuration files).
• Use industry standard tools for analysis. If required, write your own tools for protocol and data analysis and extend existing tools.
• Be a persistent and inquisitive puzzle solver, able to pick apart the intricacies of communication components, while maintaining a systems level understanding of the whole device.

Safety, Security and Compliance

• Safety at Dstl: Accountable for ensuring safe and secure work; understand and meet defined accountabilities as written in Dstl policy; demonstrate expected behaviours; ensure appropriate training and knowledge for self and direct reports.
• Develop a working environment supportive of Dstl’s approach to security, health, wellbeing, safety and environmental management; be aware of the downstream impact of actions on those outside immediate control; implement Dstl policies and ensure compliance with the Management System.
• Security and Vetting: This role requires high security clearance. The position is open to UK nationals only; some roles may require Developed Vetting and a 5/10 year UK residence history. See the vetting charter and baseline checks as part of recruitment.

Qualifications and Skills

• Essential: Experience with at least one high-level programming language (e.g., C/C++ or Python).
• Knowledge of computer networking with an interest in analysing communication protocols.
• At least one of the following:
• – Awareness of compression, obfuscation and/or encryption techniques;
• – Knowledge of data encoding techniques (e.g., raw binary formats, base64, Unicode);
• – Experience using tools for packet, data and/or binary analysis (e.g., Wireshark, 010 Editor, Ghidra).

Desirable qualifications include a relevant STEM degree or equivalent skills/experience. A clear aptitude for understanding how technologies and devices communicate, store data, and how components interact is valuable.

Working Arrangements and Location

To do this role successfully, attendance at a Dstl location is required, with 60% of working time on-site at Government Departments, MoD or Delivery and Mission Partner premises.

Salary and Benefits

Salary: £29,001 - £33,658, dependent on experience and skills. A Civil Service Pension with employer contributions applies. The role may include a skill-set allowance (£1,000-£4,500 per annum) payable three months after joining.

How to Apply and Important Information

Applications and dates: Sifting from 15 October 2025; interviews from 3 November 2025. Closing date: 15 October. If shortlisted for an interview, a 10-minute presentation on a technical project you’re proud of will be required. Feedback available only after interview or assessment. If you require help during the process, contact the Dstl Recruitment Team.

Other important notes include: national security requirements, baseline personnel security checks, and Civil Service recruitment principles. See candidate guidance for appropriate use of AI and to ensure authenticity of your application.