Digital Marketing Manager (12 month FTC) in London

Join to apply for the Digital Marketing Manager (12 month FTC) role at Mercernow: pensions (part of Marsh McLennan) have an exciting opportunity to join our team as a Digital Marketing Manager on a 12-month fixed-term contract covering maternity leave. This is a hybrid role with a requirement to work from our London office two days per week. This is a part-time role, with a requirement to work 28 hrs per-week (4 full days).

This role plays a key part in driving growth across the business through high-impact digital and lifecycle marketing. You will own core growth activity across acquisition, engagement, and retention, combining hands‐on delivery with data‐led optimisation. Working closely with commercial, product, and agency partners, you will help turn insight into action and activity into measurable outcomes.

We Will Count On You To:

• Plan, build, sign off, and optimise lifecycle campaigns in HubSpot, using testing, segmentation, and performance insight to increase conversion and customer value.
• Drive growth across the full funnel, owning digital activity that supports acquisition, activation, engagement, and retention.
• Scale performance through marketing technology, improving tracking, automation, and data quality to enable smarter targeting and faster optimisation.
• Deliver high-impact digital campaigns with agencies and internal teams, aligned to clear commercial and revenue goals.
• Optimise digital experiences across web and owned channels, improving performance, usability, and conversion through continuous iteration.
• Use data to prioritise action, identifying growth opportunities and translating insight into measurable outcomes.

What You Need To Have:

• Proven experience in growth or digital marketing, spanning acquisition, lifecycle, and optimisation.
• Strong hands‐on capability with HubSpot, including email builds, approvals, automation, and performance reporting.
• A commercial mindset, comfortable working to revenue, conversion, and growth targets.
• Confidence working cross‐functionally with commercial, product, digital, and agency partners.
• A data‐led approach, with the ability to turn insight into prioritised action.
• Demonstrable experience in content marketing and paid digital campaigns that have driven growth.
• Clear, confident communication skills, including stakeholder‐facing updates and recommendations.

What Makes You Stand Out:

• Experience delivering lifecycle or CRM‐led growth in a scaling or regulated business.
• Strong email copywriting skills with a track record of driving engagement and conversion.
• Experience running or supporting paid digital or content‐led growth campaigns.
• Working knowledge of WordPress, HTML and CSS, web optimisation, and digital analytics.
• Comfort operating at pace while balancing BAU delivery with continuous improvement.
• A proactive, ownership‐driven mindset with high standards for quality and detail.

Why join our team:

• Real ownership of lifecycle and growth activity, including optimisation and impact.
• Exposure across performance marketing, CRM, and digital experience.
• Clear commercial accountability and visibility.
• A vibrant and inclusive team culture focused on outcomes, momentum, and smart execution.
• Professional development opportunities, interesting work and supportive leaders.
• A range of career opportunities, as well as benefits and rewards to enhance your well‐being.

Mercer, a business of Marsh McLennan (NYSE: MMC), is a global leader in helping clients realise their investment objectives, shape the future of work and enhance health and retirement outcomes for their people. Marsh McLennan is a global leader in risk, strategy and people, advising clients in 130 countries across four businesses: Marsh, Guy Carpenter, Mercer and Oliver Wyman. With annual revenue of $24 billion and more than 90,000 colleagues, Marsh McLennan helps build the confidence to thrive through the power of perspective.

Marsh McLennan is committed to embracing a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age background, civil partnership status, disability, ethnic origin, family duties, gender orientation or expression, gender reassignment, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law. We are an equal opportunities employer. We are committed to providing reasonable adjustments in accordance with applicable law to any candidate with a disability to allow them to fully participate in the recruitment process. If you have a disability that may require reasonable adjustments, please contact us at reasonableaccommodations@mmc.com.

Marsh McLennan is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh McLennan colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one "anchor day" per week on which their full team will be together in person.