About the Company Our client is a global leader in digital transformation, enabling some of the world’s most critical organizations to tackle their most complex digital challenges. By delivering unparalleled visibility and actionable insights, they help clients solve problems faster, secure what matters most, and continuously innovate across their digital ecosystems. The Role We are seeking an accomplished Principal Sales Engineer to drive the expansion of UK Public Sector accounts. This is a highly technical, client-facing presales position suited to professionals with deep Government/Public Sector experience and the ability to operate in secure, complex environments. Reporting to the Regional Sales Director, you will serve as a trusted technical advisor, shaping client solutions, supporting the full sales cycle, and ensuring our client’s technology delivers measurable business value. Key Responsibilities Lead technical discovery sessions and provide end-to-end presales support Deliver high-impact demonstrations and presentations to diverse audiences Differentiate solutions with compelling value propositions against competitors Act as a technical authority across government, system integrators, and service providers Influence product roadmaps by relaying client/market feedback to engineering teams Prepare technical documentation, RFP responses, and whitepapers Mentor junior Sales Engineers and join them on client engagements Build and strengthen client relationships, driving upsell and expansion opportunities Represent the company at industry events and strategic forums What We’re Looking For 15 years in IT with at least 10 years in presales, network engineering, or technical consultancy Proven success supporting UK Government or public sector clients Ability to translate complex technical requirements into clear commercial value Strong expertise in: Cisco (routing, switching, gateways, applications) TCP/IP, SNMP, Netflow, VoIP LAN/WAN topologies (MPLS, Frame Relay, ATM) Network security, performance, and infrastructure design Solid understanding of: Operating systems (Linux, Windows) Cloud/virtualisation (SDN/NFV, public & private cloud) Performance tools (HP/OV, Tivoli, ArcSight, EMC SMARTS) Relevant certifications: CCNA, CCNP, CCIE Formal presales training (e.g. Sandler, Siebel, Afterburner) Excellent communication and presentation skills Willingness to travel extensively (60–70% UK-wide) Desirable: Degree in Computer Science, Engineering, or equivalent military training MBA or advanced business/leadership qualifications Knowledge of vendors such as Arbor, Radware, Riverbed, A10, ExtraHop Experience authoring whitepapers and contributing to product strategy Familiarity with security audits, RFPs, and mentoring presales teams Why Join? Work on mission-critical projects within secure Government environments Shape solutions that directly impact national security and public services Competitive salary bonus car allowance industry-leading benefits Join a world-class technical team with opportunities for growth and thought leadership to take on a high-impact role at the forefront of digital transformation for the UK’s most essential organisations.