Business Development Manager - Quantum for Defence & Space

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.

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.

• 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.
• 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.

• 3-8 years of experience in business development, sales, capture support, or programme support within the UK defence and/or space sector.
• Familiarity with UK MOD and/or UK space governance structures and procurement processes.
• Experience working with or alongside defence and/or space prime contractors.
• Exposure to advanced technology environments (e.g., quantum, aerospace, sensing, electronics, autonomy, cyber, space systems).
• Strong communication skills with the ability to engage both technical and commercial stakeholders.
• Highly organised, proactive, and comfortable operating in a fast moving environment.
• 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.

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. If you believe you have the potential but don't meet every single point in our job advertisement, please don't hesitate to contact us! We would love to chat with you and see how you could bring great value to our team. Our goal is to find exceptional individuals who can enrich our team culture, actively contribute, and have a genuine passion for their work. 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. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

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