Head of Growth - London

About Us

At Colossyan, we are helping modern teams scale training with AI video. Top companies like Novartis, Paramount, Continental, and WSP use Colossyan to create engaging video content from text and documents, with significant time and cost savings compared to traditional video production. Nearly 1 million videos have been created using Colossyan, and we’ve been recognised as a G2 Leader in multiple product categories.

Here is an overview of what you can do with Colossyan:

• Create videos from text, with narration from our professional AI avatars
• Turn documents, presentations and prompts into engaging videos
• Translate your video content to 80+ languages in seconds
• Personalise your videos by creating a digital avatar of yourself
• Make training interactive with features like branching, quizzes, and more

We take great pride in fostering a culture of growth within our rapidly‑growing, international team of over 50. Our organization thrives on a deep‑seeded passion for technology and its incredible potential, with a strong commitment to the personal and professional development of each team member.

About the Role

We’re looking for a Head of Growth to build and scale our marketing function from the ground up. This is a hands‑on role where you’ll own the entire marketing strategy and execution – from demand generation and product launches to international expansion and team building. The successful candidate will be able to think outside of the box and execute tactically who thrives in early‑stage environments. You’ll work closely with our founders, sales, and product teams to drive growth and establish Colossyan as a leader in the AI video space.

Responsibilities

• Build the marketing function from scratch – own strategy, execution, and measurement across all
• Drive demand generation and pipeline growth – create and execute campaigns that deliver qualified leads and revenue
• Launch products internationally – lead go‑to‑market for new features and market expansions
• Run full‑stack marketing – hands‑on execution across paid acquisition (Google Ads, LinkedIn, Meta), SEO, content marketing, email automation, and product marketing
• Build and scale the team – hire, mentor, and manage marketing team members as we grow
• Implement marketing infrastructure – set up and optimise HubSpot/CRM, analytics dashboards (GA4), and marketing automation
• Support both PLG and sales motions – balance product‑led growth with sales enablement and enterprise demand generation
• Own conversion optimisation – continuously test and improve conversion rates across the funnel
• Establish brand positioning – develop messaging, positioning, and brand strategy for global markets
• Partner cross‑functionally – work closely with Product on launches, Sales on pipeline, and leadership on growth strategy

Qualifications

Must‑Have

• You have 5‑10 years of marketing experience with a proven track record of scaling B2B SaaS companies
• You’ve built or significantly scaled a marketing function at an early‑stage startup (ideally joined when the company was small and grew it)
• You have hands‑on experience across the full marketing stack: paid acquisition (Google Ads, LinkedIn, Facebook), SEO, and email automation
• You’ve launched products and expanded into international markets
• You’ve hired and managed marketing teams (2‑4 people)
• You’re deeply data‑driven with experience in analytics tools (GA4, HubSpot, dashboards) and conversion optimisation
• You’re a hands‑on executor – you don’t just strategise, you build campaigns, write copy, and get into the details

Ideal Background

• You started at a performance marketing agency or scale‑up company and learned marketing at scale
• You then moved to B2B SaaS startups and scaled them for 3+ years
• You have experience in AI, content creation, L&D, or HR tech (nice‑to‑have, not required)
• You may have founder or entrepreneurial experience

You’ll Thrive Here If

• You love building from 0 to 1 and have done it before
• You’re energized by wearing multiple hats and moving fast
• You’re obsessed with metrics, testing, and continuous improvement
• You have a growth mindset and view challenges as opportunities
• You’re low‑ego and collaborative
• You’re passionate about AI and its potential to transform how people learn

What we offer

• Stock options: We want everyone to feel motivated to do their best work, which is why we’re all owners.
• Remote work: Enjoy extra flexibility with one full week of remote work per quarter.
• Free lunch Thursdays: Build team connections over complimentary weekly lunches, available for both in‑office and remote employees.
• Wellness Wednesdays: We know working at a startup can be mentally tough, which is why we offer monthly expert‑led sessions on meditation, yoga, and other well‑being practices.
• Great office location: Work from our centrally‑located, pet‑friendly office designed for comfort and team collaboration.
• Birthday time off: Celebrate your birthday with an additional paid day off, if it falls on a weekday, separate from your regular vacation allowance.
• Flexible annual leave: Enjoy 25 days of annual leave with the unique option to convert the 8 bank holidays into working days and boost your annual leave allowance to 33 days. Choose what works best for you.
• Private healthcare: Access private healthcare through Bupa, including talk therapy and physiotherapy. We understand that everyone does their best work when they’re happy and healthy.
• Retirement planning: We offer matched salary sacrifice pension with Smart Pension.
• Cutting‑edge AI technology: Be at the forefront of AI innovation, working directly with state‑of‑the‑art AI technologies that form the core of our product.
• Impact: As a rapidly expanding Series A startup, your contributions will have an immediate impact on our global development!

At Colossyan, we believe that diversity drives innovation and inclusion fosters a sense of belonging. We are committed to creating a workplace where everyone feels valued, respected, and empowered to bring their authentic selves to work. We actively seek to build a diverse team and encourage applications from candidates of all backgrounds and beliefs to apply to our open positions. We strongly encourage individuals from underrepresented and/or marginalised identities to apply. If you need any accommodations for your interview, please email recruitment@colossyan.com.