Senior Growth Marketing Executive

Job title: Senior Growth Marketing Executive

Location: London, hybrid

Capacity: Full-time, permanent

Salary: £35k - £40k, depending on experience

Role grade: IC3

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About Ocean Bottle:

At Ocean Bottle, our vision is to restore the health of the ocean to a better state than we inherited it. We do this by bringing people together to fund plastic collection. We create award-winning reusable bottles and cups, with every product sold funding the collection of 1000 plastic bottles in weight - before they reach the ocean. To date, we’ve collected the equivalent of 1.7 billion plastic bottles from ocean-bound regions.

We believe that we don’t need a handful of people doing sustainability perfectly, we need millions doing it imperfectly. Our products and solutions enable consumers and businesses to drive this change and support refill behaviour whilst funding plastic collection. 

As a brand, we are change makers - we bring people together, we pioneer solutions and we connect others to the power of the ocean. Are you ready to join us on this mission? 

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What you’ll be doing:

We’re looking for a commercially minded, hands-on Senior Growth Marketing Executive to join our team and take ownership of digital growth across paid channels, website optimisation, and CRM. You’ll play a key role in scaling customer acquisition and retention, working closely with cross-functional teams to hit ambitious revenue targets.

Additionally, you will:

• Own and scale key performance marketing channels — including paid social (Meta, TikTok), PPC (Google Ads), and affiliate marketing — with a focus on efficiency, ROAS, and sustainable growth.

• Assist with managing CRM flows , helping to build and optimise automated email campaigns that increase customer engagement and retention.

• Work on improving the Shopify website , helping to implement tests and enhance the customer journey to boost performance metrics.

• Collaborate closely with brand, design, and content creators to develop and iterate on ad creatives, messaging, and formats based on performance insights.

• Contribute to a test-and-learn culture , helping to run A/B tests across channels and the website to identify what works and scale winning strategies.

• Track and report on key performance metrics , sharing insights and ideas for improvement, and helping to inform next steps with data.

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What you’ll get:

In addition to your salary, we offer the following benefits:

Stock options so you’re as invested in our future growth as we are!​

️Enhanced annual leave, including your birthday off and discretionary EOY leave

⏰ Flexible working model to support our employees

Enhanced family leave for primary and secondary caregivers

Private Medical Insurance through Vitality 

Mental Health Support through the Spill platform

Learning support including professional coaching through More Happi and £200 learning allowance

Travel benefits including access to electric vehicles through WeVee and Cycle to Work scheme

Team merch including your very on OB when you join and staff discount to OB product

Supportive and (pet) friendly workspace in Shoreditch

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At Ocean Bottle, we're as passionate about creating sustainable change as we are about creating an inclusive environment for all. We believe in the power of diverse perspectives, identities, and backgrounds to drive us forward and build a team that truly reflects the world we want to impact. So, whether you see yourself in every part of this job description or only some, we want to hear from you. If the role excites you and you're eager to contribute to our mission, please consider applying—your unique experiences and ideas could be exactly what we need to make a splash.

What you’ll bring to the role:

• 2–3 years of experience in digital or performance marketing within a consumer goods business. Bonus points for B2B experience.

• Hands-on experience running and optimising paid campaigns across Meta, TikTok, and Google Ads.

• Strong grasp of CRM and email marketing fundamentals.

• Working knowledge of affiliate marketing or eCommerce platforms like Shopify is a plus.

• Analytical mindset – comfortable interpreting data and turning insights into actionable strategies.

• Experience building and using dashboards to track performance and inform decisions.

• Confident communicator and team player, able to collaborate across departments.

• Self-starter with a bias for action and a proven ability to own and drive projects.

• Alignment with our core values:

  • Think like a detailed and rigorous founder

  • Champions do extra

  • Give a sh*t and go all in on the mission

What good looks like:

• Managing and optimising paid channels to deliver on spending and revenue targets.

• Clear channel attribution tracking in place, influencing where and how budget is spent.

• A robust testing roadmap across channels (audiences, messaging, creatives, landing pages).

• Established and optimised creative workstreams to deliver high-impact ad creatives with a focus on video.

• Reporting dashboards built and actively leveraged to inform daily optimisations.