Lead Infrastructure Engineer

Lead Infrastructure Engineer | Bristol (Hybrid – up to 2 days per week in North Bristol)| £70,000 – £90,000 + excellent benefits

In 2019, TwinStream was founded by engineers with a passion for solving complex, cross-domain problems in government organisations. Today, we bring that technical excellence to a range of clients—working both on-site and remotely—while building a culture of collaboration, growth, and innovation.

Additional Information

Due to the nature of our work, successful applicants must be eligible for DV clearance and will undergo security screening.

The Lead Infrastructure Engineer Role:

We’re looking for a Lead Infrastructure Engineer to take ownership of our IT estate and lead our talented IT team. In this role, you’ll define and deliver our IT strategy, set the technical direction, and provide hands-on leadership to ensure we continue to deliver first-class service across the business.

This is a chance to be both strategic and hands-on—shaping the future of TwinStream’s IT, while also rolling up your sleeves to resolve incidents, implement changes, and demonstrate best practice to the team.

Key Responsibilities of the Lead Infrastructure Engineer:

• Define and maintain TwinStream’s corporate IT strategy with senior leadership.
• Own and manage the IT estate—from AWS/M365 accounts to mobile devices and laptops.
• Provide technical leadership, mentoring, and guidance to the IT team.
• Work with our Service Manager to continuously improve IT capabilities as an in-house managed service.
• Resolve incidents and problems directly when required.
• Partner with stakeholders across the business (Delivery, InfoSec, GRC, People, Finance) to shape IT initiatives.
• Deliver IT change through a Kanban methodology and maintain an IT Change Roadmap.
• Define and regularly test our disaster recovery plan.
• Identify process improvements to enhance support and change delivery.

What You’ll Bring

Essential Skills & Experience:

• Microsoft 365 administration (Teams, SharePoint, Office apps, Power Automate).
• Microsoft Entra ID (identity, access, application integrations, endpoint security).
• AWS & Azure configuration (networking, DNS, security monitoring).
• Infrastructure as Code (Terraform, Microsoft365DSC).
• Backup & Disaster Recovery planning and execution.
• SaaS deployment and integration.
• Strong stakeholder engagement and communication skills.

Nice to Have:

• Knowledge of ISO27001, Cyber Essentials Plus, and InfoSec tooling.
• Experience working with public sector customers.
• Linux and Windows system administration.

Why Join Us?

• Pension Plan – 8% employer contribution.
• Private Medical Healthcare – including dental & optical for you and your family.
• Learning & Development – autonomy to shape your career growth.
• Flexible Working – true flexibility built into our culture.
• Electric Vehicle Scheme – sustainable salary sacrifice leasing.
• Generous Holiday – 28 days + bank holidays
• Team Events – quarterly gatherings, plus summer & Christmas parties.
• Additional Perks – life assurance & cycle-to-work scheme.

What’s Next?

If you’re ready to lead, inspire, and make a real impact in a growing company where technical excellence is at the heart of what we do—we’d love to hear from you.

Apply now and help shape the future of TwinStream’s IT!