Senior Lifecycle Architect: Product-Led Growth

Synthesia; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

Synthesia is a leading AI video platform excited to grow its lifecycle engine. We’re seeking a Senior Lifecycle Manager to own product-led growth after signup, turning new users into activated, paying and expanding customers through automated journeys that scale to millions of contacts.

You will design journeys, own automated programs, run experiments, and collaborate with Product, Product Marketing and Data teams to build a scalable lifecycle engine that leverages AI for personalisation and

Qualifications

• You understand how lifecycle marketing contributes to activation, adoption, retention, and revenue and can show measurable results from programs you’ve owned.
• You use data to understand performance, challenge assumptions and continuously improve what you build.
• You think in customer journeys and connect emails into a cohesive experience across touchpoints.
• You’re confident building sophisticated automation and segmentation, working with product data.
• You take ownership and lead initiatives from concept to execution with proactive problem solving.
• You collaborate across functions to move complex projects forward without direct authority.
• You care about deliverability, data accuracy and information quality in customer communications.
• You’re excited about applying AI to improve personalisation, testing and lifecycle operations.

Responsibilities

• Design, build and optimise lifecycle journeys from activation to expansion and retention.
• Own end-to-end lifecycle automation, including audience segmentation, triggers and QA.
• Develop structured experiments to improve lifecycle performance and turn learnings into improvements.
• Leverage product usage data and customer attributes to deliver relevant personalisation.
• Own campaigns QA, testing, deliverability and best practices for segmentation and frequency.

Skills

Lifecycle marketing

Data analysis

Cross-functional collaboration

Automation

AI interest

Tools

HubSpot

Salesforce

SQL

Job description

Synthesia is a leading AI video platform excited to grow its lifecycle engine. We’re seeking a Senior Lifecycle Manager to own product-led growth after signup, turning new users into activated, paying and expanding customers through automated journeys that scale to millions of contacts.

You will design journeys, own automated programs, run experiments, and collaborate with Product, Product Marketing and Data teams to build a scalable lifecycle engine that leverages AI for personalisation and