Public Sector Bid Writer/ Administrator

Location: Corsham (hybrid/ office 1 day per week)

Hours: Full time (37.5 hrs) or part time (25 hrs per week)

Contract: Permanent

Security Clearance: Advantageous

About CND

Computer Network Defence Ltd (CND) is a trusted and growing cyber security business, helping public and private sector clients tackle complex security challenges with confidence. As a certified B Corp, we are committed not only to high standards of professional excellence, but also to doing business in the right way for our people, our community, and the wider world. We combine deep technical expertise with a supportive, collaborative culture, giving our people the chance to do meaningful work, develop their careers, and make a visible impact.

About the role

We are looking for a proactive and highly organised Bid Writer/Administrator to support the Bid Manager in delivering winning bids, tenders, and framework submissions across the business. This is a fantastic opportunity for someone who enjoys writing persuasive content, coordinating multiple contributors, and helping turn opportunities into success. If you thrive in a fast-paced environment and want a role where your work will directly support business growth, this could be the perfect next step. Knowledge of IT or cyber security would be helpful, but it is not essential.

What you’ll do

Help deliver high-quality bids, tenders, and framework submissions that win new business and strengthen long-term client relationships

Work closely with subject matter experts, the Bid Manager, and senior colleagues to create clear, compelling, and compliant responses tailored to each opportunity

Build and improve bid content, templates, and supporting materials to keep submissions sharp, efficient, and competitive

Keep opportunities moving smoothly by managing deadlines, coordinating input, and maintaining consistently high submission standards

What we’re looking for

You will bring strong organisational skills, excellent attention to detail, and the confidence to work across teams and priorities. Experience in bid support, tender coordination, or public sector frameworks would be highly advantageous. Above all, we are looking for someone proactive, dependable, and motivated by producing high-quality work that makes a real difference.

Why join CND

At CND, you will be part of a business where your work is visible, valued, and trusted. We are proud to be a certified B Corp, reflecting our commitment to building a company that balances commercial success with a positive impact on people and society. We work hard, support one another, and recognise initiative, teamwork, and high standards. With the flexibility of home and Corsham-based working, and the chance to build your bid and commercial expertise in a growing cyber security business, this is a role where you can genuinely thrive.

If you are looking for a varied, rewarding role where your writing, organisation, and coordination skills can have a direct impact, we would love to hear from you.

CND

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