Defence Business Development Director

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. 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. This position offers significant exposure to strategic customers and executive leadership, providing a strong platform for progression into senior business development roles.

• 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 organisations such as MOD, Dstl, UK Space Agency, NATO, and relevant prime contractors.
• 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.
• Represent Infleqtion at defence and space events and industry forums.
• Maintain accurate pipeline reporting and CRM management.

3–8 years of experience in business development, sales, capture support, or programme support within the UK defence and/or space sector.

• Experience working with or alongside defence and/or space prime contractors.
• Strong communication skills with the ability to engage both technical and commercial stakeholders.
• Eligible to obtain UK Security Clearance (SC minimum).
• STEM background (physics, engineering, space systems, or related field).
• Experience supporting competitive bids or innovation proposals in defence or space programmes.
• Existing working-level MOD, UK Space Agency, UK Space Command, or prime contractor network.
• Familiarity with European defence and space governance structures and procurement processes.

Travel: Up to 30% travel may be required.

Regardless of your interest in the quantum industry, you can take pride in the fact that Infleqtion is building an ecosystem of quantum technologies and commercial products, driving the industry towards the future. Studies reveal that while men apply for jobs when they meet an average of 60% of the requirements, women and other groups tend to apply only when they meet all the criteria. We would love to chat with you and see how you could bring great value to our team. Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin colour, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs.

In addition to your base compensation, we offer a generous Total Rewards program which includes:

• Competitive salary
• Generous company 10% pension contribution regardless of employee contribution
• Unlimited PTO
• BUPA healthcare after probation period
• Cycle to work and Technology scheme