Office Manager | Hybrid – Bristol | £40,000 – £50,000 | Must be eligible for DV clearance

At TwinStream, we bring deep technical expertise to solve complex, cross-domain problems for government organisations. Founded in 2019 by engineers with years of hands-on experience, we’ve grown into a trusted partner delivering innovative, secure, cloud-native solutions.

We’re now looking for an Office Manager to join our team in Bristol—someone who is highly organised, proactive, and adaptable, with the drive to take ownership of both office operations and security responsibilities. This is an exciting hybrid role with real responsibility and variety.

The Office Manager role:

You’ll oversee the smooth running of our Aztec West office, creating a professional and efficient workplace for our people. Alongside this, you’ll have the opportunity to support (or upskill into) the Security Controller role—helping us maintain the highest standards of compliance with government protective security requirements.

This is more than a traditional office management role: it’s a chance to be the linchpin of our operations, blending facilities, health & safety, supplier management, and security into a role that directly contributes to the success of the business.

Why join us?

Competitive salary (£40,000–£50,000)
8% employer pension contribution
Private medical healthcare (including dental & optical for family)
Learning & development – take charge of your growth with employer support
Flexible working culture
EV leasing scheme via salary sacrifice
Cycle-to-work scheme
28 days’ holiday + bank holidays
Regular team events (quarterly gatherings, Christmas & summer parties)
Life assurance for peace of mind

Key responsibilities of the Office Manager:

Office & Facilities Management

Keep daily operations running smoothly, from suppliers to workspace setup.
Be the go-to contact for facilities, landlord liaison, and building management.
Coordinate onboarding/offboarding, office supplies, meeting rooms, post/couriers, and small events.

Health & Safety

Lead on H&S compliance including risk assessments, inductions, and drills.
Maintain policies, training records, accident/near-miss logs, and contractor permits.
Ensure statutory compliance (fire, electrical, water, etc.) and first aid/fire warden coverage.

Security Controller Support (training provided)

Oversee physical security: access control, CCTV, alarms, secure materials.
Keep policies, training, and risk assessments up to date.

Supplier & Budget Management

Own supplier contracts (cleaning, security, M&E, consumables).
Manage POs, invoices, and budgets—finding efficiencies without compromising service.

What we’re looking for

Proven experience in office or facilities management.
Highly organised with excellent communication skills.
Comfortable handling sensitive information with discretion.
Within commuting distance of Aztec West and available Mon–Fri.
Eligible for DV clearance (existing clearance a bonus).
Basic knowledge of H&S practices (risk assessments, incident logging, DSE).
Confidence (or willingness to train) in managing access control, CCTV, and alarm systems.

Next steps

If you’re ready to take on a role that blends operational responsibility with security leadership—and want to be part of a growing, innovative company—we’d love to hear from you.

Apply today and take the next step in your career with TwinStream.