Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US.

As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations.

Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow.

Welcome to the video-first world

From your everyday PowerPoint presentations to Hollywood movies, AI will transform the way we create and consume content. Today, people want to watch and listen, not read — both at home and at work. If you’re reading this and nodding, check out our brand video.

Despite the clear preference for video, communication and knowledge sharing in the business environment are still dominated by text, largely because high-quality video production remains complex and challenging to scale—until now…

Meet Synthesia

We're on a mission to make video easy for everyone. Born in an AI lab, our AI video communications platform simplifies the entire video production process, making it easy for everyone, regardless of skill level, to create, collaborate, and share high-quality videos. Whether it's for delivering essential training to employees and customers or marketing products and services, Synthesia enables large organizations to communicate and share knowledge through video quickly and efficiently. We’re trusted by leading brands such as Heineken, Zoom, Xerox, McDonald’s, and more. Read stories from happy customers and what 1,200+ people say on G2.

In 2023, we were one of 7 European companies to reach unicorn status. In February 2024, G2 named us as the fastest growing company in the world. In 2025 we announced our series D funding. In total we’ve raised over $330M in funding from top-tier investors, including NEA, Atlassian Ventures, WiL, PSP Growth, and existing investors such as Accel, Nvidia, Kleiner Perkins, GV and top founders and operators including Stripe, Datadog, Miro, Webflow, and Facebook

About the role

We’re looking for a Proposal Manager to act as an extension of our Sales team, supporting our highest-value Strategic and Enterprise opportunities. This role sits at the heart of deal execution, owning the end-to-end proposal, RFP, and RFI process while partnering closely with Account Executives and cross-functional teams.

You’ll engage confidently in both business-level and technical conversations across multiple levels of customer organisations, delivering clear, compelling, and accurate customer-facing documentation. This is an ideal role for someone who thrives in fast-paced environments and wants to grow their career within a scaling software company.

What You’ll Do

Proposal & RFP/RFI Ownership

Partner closely with Strategic and Enterprise Account Executives to deliver high-quality proposals, RFPs, RFIs, and supporting sales documentation.
Own and coordinate the full end-to-end RFP and RFI process, gathering inputs from cross-functional stakeholders and ensuring timely, accurate, and compelling submissions.
Handle security questionnaires and due diligence requests from enterprise and top-tier customers.

Deal Execution & Commercial Support

Manage legal redlines, escalations, and approvals in collaboration with internal and external Legal teams.
Maintain a highly organised pipeline of deals from negotiation through to close.
Input orders, validate accuracy against customer requirements, and ensure all relevant information is passed to downstream teams.
Assist directly with customer queries related to contracting, procurement, and commercial processes.

Cross-Functional Collaboration

Build strong working relationships with Finance, Legal, RevOps, Infosec, Services, and Sales to support deal execution.
Liaise with suppliers and third-party partners as needed to support commercial and RFP/RFI requirements.
Attend internal sales meetings and stay up to date on changes to product, pricing, and internal processes.

Process Improvement & Scale

Use Salesforce and other internal systems to create and manage quotes, proposals, contracts, and RFP/RFI documentation.
Identify, propose, and contribute to process improvement initiatives, particularly across RFP/RFI workflows and knowledge management.
Adapt as the Sales Operations function evolves, embracing tools and technology to drive efficiency and scalability.

What We’re Looking For

Required

2+ years of relevant experience in a sales, sales operations, or commercial role.
Experience working in B2B and understanding end-to-end sales cycles.
Technical aptitude and hands-on experience with Salesforce.
Excellent written and verbal communication skills.
Strong organisational skills with exceptional attention to detail.
Ability to manage multiple priorities in a fast-paced, deadline-driven environment.
Experience managing large or complex projects.
A proactive, self-starter mindset with a strong sense of ownership and accountability.
Ability to build effective relationships with customers and internal stakeholders.

Nice to Have

Experience in high-volume order processing or data entry roles.
Knowledge of project coordination or formal project management practices.
Experience supporting enterprise or strategic sales motions.

Benefits:

🏝 PTO & Holiday Entitlement Policy

✈️ Work from Abroad

🤝 Team Meet ups & Company Socials

🏡 Work From Home Budget

💸 Referral Scheme

👶 Enhanced Parental Leave

Proposal Manager

TLDR