Business Development Manager - Quantum For Defence & Space

Business Development Manager

Infleqtion is a global quantum technology company delivering advanced sensing, precision timing, and quantum computing technologies to government and commercial customers. We develop and deploy cutting-edge quantum solutions that enhance navigation, positioning, communications, quantum information processing, and sensing capabilities across defence, space, and critical infrastructure markets.

As we expand our UK team, we are seeking a high-potential Business Development Manager to grow our presence across government defence and space sectors (e.g. MOD, UK Space Command, NATO) and leading prime contractors. This role will initially focus on the UK domestic market, while also encompassing responsibilities across the European market as the organisation expands its presence in the region.

This role is ideal for a commercially minded professional with experience in the defence and/or space ecosystem who is ready to step into a high-growth, deep-tech environment and accelerate their career in advanced technology sales.

Infleqtion has offices in the USA, United Kingdom and Australia. This is a full-time position in Kidlington, Oxford (Hybrid, with UK & international travel). Our flexible working policy enables all full-time employees to work up to 2 days a week from home as work permits.

You will support and drive business development activities across defence and space accounts, helping to identify opportunities, build relationships, and convert early-stage engagements into funded programmes and sales. The role spans land, maritime, air, cyber, and space domains, with relevance to sovereign capability programmes. This position offers significant exposure to strategic customers and executive leadership, providing a strong platform for progression into senior business development roles.

Job Responsibilities:

• Identify and qualify new opportunities within, for example, UK MOD, UK Space Command, NATO, defence primes, and space primes.
• Support account strategy development and pipeline management across key defence and space stakeholders in the UK and in Europe.
• Build and maintain working-level relationships within organisation such as MOD, Dstl, UK Space Agency, NATO, and relevant prime contractors.
• Contribute to bid and proposal efforts, including RFI/RFP responses, innovation funding calls, and space-related programmes.
• Coordinate cross-functional teams (technical, engineering, programme management) during opportunity pursuit across defence and space domains.
• Track defence and space funding calls and framework opportunities (e.g., DASA, NATO DIANA, UKSA calls).
• Represent Infleqtion at defence and space events and industry forums.
• Maintain accurate pipeline reporting and CRM management.