Growth Marketing Lead

3Search; Greater London; Hybrid; GBP 92,000 - 185,000; Full time

Job summary

3Search in London is seeking a hands-on Growth Marketing Lead to build its customer acquisition engine from scratch, from zero to one. You will own multi-channel strategy, combining paid ads (Meta, Google) with local and organic initiatives, and will work closely with leadership to shape growth.

The role demands practical execution, strong commercial instinct, and a test-and-learn mindset, with responsibility to optimize CAC and drive measurable growth toward the next stage of the business.

Qualifications

• Zero-to-one experience: A proven track record of building a marketing or customer acquisition engine from scratch, ideally from the earliest stages of a business.
• Broad growth expertise: Experience across paid performance marketing, Meta, Google Ads, SEO, organic social and wider acquisition channels.
• Local marketing experience: An understanding of geo-targeted marketing and how to drive customers, enquiries, bookings or footfall to physical locations.
• A hands-on approach: You're comfortable developing the strategy and personally executing campaigns, analysing results and optimising performance.
• Commercial acumen: You understand customer acquisition metrics, budget allocation and how to make informed decisions about marketing investment.
• A test-and-learn mindset: You're happy working with limited resources, testing hypotheses and adapting your approach based on what the data tells you.
• A collaborative style: You enjoy working closely with founders and leadership teams to develop the right strategy rather than operating in isolation.

Responsibilities

• Own growth marketing end to end, developing and implementing a multi-channel acquisition strategy combining digital performance with organic and local marketing.
• Build customer acquisition strategy from ground up, identify audiences, channels and tactics to drive growth.
• Develop and execute campaigns across paid media, including Meta and Google Ads.
• Drive organic growth through SEO, organic social and content-led activity.
• Develop geo-targeted and local marketing initiatives to attract customers to physical locations.
• Explore opportunities across local partnerships, influencers and offline marketing to complement digital acquisition.
• Establish a test-and-learn approach, continually experimenting with messaging, creative, targeting and channels.
• Monitor performance, analyse CAC and conversion rates, and optimise campaigns to maximise ROI.
• Collaborate with leadership to refine strategy and determine where investment has impact.
• Assess current marketing activity and resources to improve effectiveness.

Skills

Zero-to-one experience

Growth marketing

Paid media

SEO

Local marketing

Analytical

Collaborative

Tools

Meta Ads

Google Ads

SEO tools

Job description

Growth Marketing Lead

£500–£1,000 per day

Initial 3–6 month contract

Ideally 4–5 days per week

London, Hybrid

Are you a hands‑on growth marketer who loves building things from the ground up?

We’re partnering with an ambitious, growing health business looking for an entrepreneurial Growth Marketing Lead to build its customer acquisition engine from zero to one and help drive the next stage of its growth.

This is a fantastic opportunity for someone who has successfullybuilt a marketing engine from scratch and wants to make a tangible commercial impact. Working closely with the leadership team, you’ll shape the growth strategy and take ownership of executing it, testing channels, acquiring customers and establishing a repeatable model for growth.

This isn't a purely strategic or advisory role. They need someone who can think strategically, roll up their sleeves and deliver.

The Role

You’ll take ownership of growth marketing end to end, developing and implementing a multi‑channel acquisition strategy that combines digital performance with organic and local marketing.

• Building a customer acquisition strategy from the ground up, identifying the right audiences, channels and tactics to drive growth.
• Developing and executing campaigns across paid media, including Meta and Google Ads.
• Driving organic growth through SEO, organic social and relevant content‑led activity.
• Developing geo‑targeted and local marketing initiatives to attract customers to specific physical locations.
• Exploring opportunities across local partnerships, influencers and offline marketing to complement digital acquisition.
• Establishing a test‑and‑learn approach, continually experimenting with messaging, creative, targeting and channels to understand what drives results.
• Monitoring performance, analysing customer acquisition costs and conversion rates, and optimising campaigns to maximise return on investment.
• Working collaboratively with the leadership team to refine the strategy, challenge assumptions and determine where marketing investment will have the greatest impact.
• Assessing existing marketing activity and resources, identifying what is working and where there is an opportunity to improve.

The ultimate goal is to build a scalable marketing engine and support the business's ambition to grow its customer base towards approximately 3,000 customers.

About You

We're looking for a commercially minded growth marketer who thrives in an entrepreneurial environment and enjoys turning ideas into measurable results.

You'll ideally bring:

• Zero-to-one experience: A proven track record of building a marketing or customer acquisition engine from scratch, ideally from the earliest stages of a business.
• Broad growth expertise: Experience across paid performance marketing, Meta, Google Ads, SEO, organic social and wider acquisition channels.
• Local marketing experience: An understanding of geo‑targeted marketing and how to drive customers, enquiries, bookings or footfall to physical locations.
• A hands‑on approach: You're comfortable developing the strategy and personally executing campaigns, analysing results and optimising performance.
• Commercial acumen: You understand customer acquisition metrics, budget allocation and how to make informed decisions about marketing investment.
• A test‑and‑learn mindset: You're happy working with limited resources, testing hypotheses and adapting your approach based on what the data tells you.
• A collaborative style: You enjoy working closely with founders and leadership teams to develop the right strategy rather than operating in isolation.

Experience within a location‑based business or a sector where customer acquisition has a strong local element would be particularly valuable.

Experience marketing premium‑priced products or services would be a bonus, but isn't essential