Community Growth & Acquisition Manager - JT AI Labs (M/F/D)

The role
As one of the first members of JT AI Labs, you will build and operate the acquisition engine that turns relevant experts into an active, high-quality community.
You will be responsible for reaching the right experts, in the right countries, speaking the right languages and with the right domain expertise, depending on the needs of our AI projects.
Audio data collection is one of our first areas of focus, but the community will support a broader range of AI projects over time, including annotation, evaluation and complex expert tasks. Your role will be central to building a reliable European expert network that can respond quickly to changing project requirements.
Reporting to Manon Pagnucco, our GTM Lead, you will work closely with Lucas Weston Smith, Product & Operations Lead, and the wider JT AI Labs team.
What you'll work on
Launch and manage acquisition channels
Identify, test and develop a broad mix of acquisition channels, including paid and organic acquisition, partnerships, referrals, professional communities, social media, direct outreach and targeted campaigns.
Plan and manage paid marketing campaigns, from audience definition and budget allocation to creative testing and performance analysis.
Build and maintain the expert-facing presence of JT AI Labs on LinkedIn and potentially other relevant platforms, including X.
Create clear, engaging content that makes experts want to join, contribute and come back.
Develop repeatable playbooks for each channel and scale the channels that perform best.
Run targeted expert recruitment campaigns
Launch targeted campaigns based on project requirements, such as language, country of residence, domain expertise, seniority, availability or demographic criteria.
Build campaigns for specific language communities and expert segments across Europe.
Adapt messaging, landing pages and acquisition tactics to different audiences and markets.
Develop relationships with relevant professional, academic and specialist communities.
Coordinate closely with the delivery and operations teams to anticipate upcoming recruitment needs.
Build and optimise the acquisition funnel
Own the expert acquisition funnel from first contact to application, qualification, onboarding and activation.
Work closely with Lucas to identify friction points and improve the experience based on user feedback.
Define the key acquisition and activation metrics, build dashboards and identify opportunities for improvement.
Improve conversion rates while maintaining a high level of expert quality.
Track acquisition costs and ensure that the community growth engine remains efficient and scalable.
Measure and improve performance
Own the end-to-end performance of the acquisition engine, from reach and traffic to qualified applications, approved experts and first completed projects.
Monitor metrics such as cost per application, cost per qualified expert, conversion rate, activation rate, retention and channel contribution.
Identify recurring patterns in expert behavior and translate them into concrete growth initiatives.
Run experiments on messaging, channels, incentives, landing pages and onboarding journeys.
Share clear recommendations with the JT AI Labs team and contribute to strategic decisions.
You have approximately 3 to 6 years of experience in growth, acquisition, community building, marketing or a related role.
You have worked in a technology startup, preferably in AI, SaaS, marketplaces, talent platforms or another fast-moving digital environment.
You have hands-on experience building or improving an acquisition funnel, not only managing high-level strategy.
You have experience launching and optimizing several acquisition channels, including organic and paid channels.
You understand how to define, monitor and improve growth metrics such as conversion, activation, retention, acquisition cost and channel ROI.
You have experience building or growing a community, ideally a community of experts, professionals, creators, contributors or specialized talent.
You are comfortable creating campaigns for specific audiences based on location, language, expertise or other criteria.
You have excellent written and spoken English & French. You are comfortable communicating with experts from different countries and backgrounds.
You are a strong communicator and can write clear, engaging content for LinkedIn, email campaigns, landing pages and community communications.
You are analytical and comfortable using data to make decisions, while remaining highly execution-oriented.
You are autonomous, resourceful and comfortable building processes from scratch.
You enjoy testing, learning quickly and changing direction when the data or user feedback tells you to.
You thrive in a startup environment where priorities evolve quickly and everyone is expected to take ownership.
You are genuinely interested in AI, expert communities and the future of human contribution to AI development.
Nice to have
Experience in AI training data, data collection, annotation, model evaluation, crowdsourcing or human-in-the-loop workflows.
Experience recruiting multilingual or international communities.
Experience working with expert networks, marketplaces, creator communities or specialized talent platforms.
Experience in a European or international growth role.
Experience managing paid acquisition budgets and working with tools such as Meta Ads, Google Ads, LinkedIn Campaign Manager or similar.
Experience with CRM, marketing automation, analytics or experimentation tools.
Familiarity with audio data for AI, speech AI, ASR, TTS or multilingual AI projects.
Additional European languages.

Employment type
Full-time

Work arrangement
Hybrid