International Capture and Proposals Manager in London

At Slingshot Aerospace, we're on a mission to make space safer and more secure for everyone. Our work directly impacts global security, disaster response, climate monitoring, and the critical infrastructure that connects our world. We're a team of builders, thinkers, and problem-solvers who believe that the next generation of space operations will be powered by better data and smarter software.

Slingshot Aerospace is looking for a Capture and Proposals Manager to support the growth of our international business. This role is crucial for us to meet the demand from our customers for the capabilities and services we provide. As part of our International Growth team, you will work closely with the rest of the company to ensure Slingshot consistently delivers the best response to our global customers. The work will be varied, dealing with ‘rapid-turn’ proposals and strategic longer-term bids. The role will be diverse, and you will have an impact.

This position is well suited to someone who has worked in proposals or capture support for a few years and is now ready to take the next step, looking for more authority and greater responsibility. We're building a team of sharp, creative people who love solving hard problems. We value curiosity over ego, initiative over waiting for permission, and people who genuinely care about doing great work and delivering for our partners.

Your Mission:

• Lead the preparation and coordination of proposals, RFP responses, RFIs, and related opportunity submissions for international customers.
• Manage proposal timelines, schedules, and deliverables to ensure high-quality and compliant responses.
• Coordinate inputs from cross-functional stakeholders.
• Ensure proposals clearly articulate the value of Slingshot’s Space Operations Intelligence and Autonomy offerings.
• Maintain proposal documentation, templates, and knowledge repositories for all international captures.
• Identify opportunities to improve proposal processes and help strengthen Slingshot’s international bid capability.

Pre-flight Checklist:

• Experience supporting or managing proposal development, bids, or capture activities.
• Ability to manage multiple opportunities and deadlines in a fast-paced environment.
• Strong project management and organizational skills.
• Excellent written communication and document coordination skills.
• Experience working with cross-functional teams to assemble proposal responses.
• Familiarity with responding to RFIs, RFPs, or similar procurement processes.
• Ability to work independently while collaborating with distributed teams.

Bonus Cargo:

• Experience supporting both ‘quick-turn’ proposals and complex strategic bids.
• Familiarity with government, defense, or public-sector procurement.
• Experience working across international teams or regions.
• Exposure to aerospace, space, satellite data, defense, or advanced analytics industries.
• Experience with proposal management tools, CRM systems, or opportunity tracking platforms.

Location: Remote (United Kingdom)

Equity, Diversity & Inclusion are key to our success. We are an Equal Opportunity Employer and our employees are people with different strengths, experiences, and backgrounds, who share a passion for creating a safer, more connected world.