Principal Product Marketing Manager, API

Synthesia synthesia.io Open · verified Sep 10, 2026

Hybrid London New York Full-time Senior Product Marketing

Senior Product Marketing role at Synthesia. London · full-time · no salary stated · we estimate £97,500–£130,000.

Estimated pay

Synthesia has not published a salary for this role. The figure below is our estimate, not theirs.

£97,500 – £130,000

What the middle half of senior product marketing roles in London paid, among postings that did state a salary.

Worked out from 5 postings that stated pay, median £111,300. Last updated Aug 13, 2026.

Role brief

Growth Roles summary, based on the employer's posting.

What you'll do

You'll define the API's core positioning and developer-facing messaging
You'll build the Interactive Avatar API's go-to-market motion from scratch
You'll establish the launch process where no playbook exists yet
You'll determine how to reach developers and win them over

What you bring

You've built with APIs using endpoints, code samples, webhooks, and a shipped project
You've worked in product marketing, growth, or developer marketing for enterprise audiences
You communicate exceptionally well in writing and in conversation
You've managed senior stakeholders and complex programs
You use generative AI video tools, create content with them, and follow new models closely

Who this fits

This role suits someone who enjoys building from scratch and understands how developers integrate and ship. You'll be the initial marketer assigned specifically to the API and will shape its marketing foundation. The role is full-time, based in London, and hybrid.

From the employer

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.

About The Role

Synthesia is the #1 Enterprise AI video generation since 2016, and today we work with 90% of the Fortune 100. Our core product, Studio, lets anyone turn a script into a polished video with an AI avatar, no camera or crew required.

Now we're entering a new chapter, and the API is at the center of it. Our Interactive Avatar API lets any company build real-time, conversational avatars directly into their own products.

You're the first product marketing hire dedicated to the API, and you'll build the GTM motion from scratch.

There's no playbook here yet. You'll set the foundational positioning, write the developer-facing messaging, stand up the launch process, and figure out how we reach developers and win them.

Requirements

You get energy from building from scratch, and have a hacker mentality.
You use gen AI video tools and created content with them. You're in every new model the week it drops.
You've built with APIs yourself: called endpoints, read the code samples, wired up a webhook, shipped something small. You know how developers actually integrate and ship.
You've done product marketing, growth, or developer marketing for enterprise audiences.
You're an excellent communicator, written and spoken. You have experience managing senior stakeholders and complex program management.