OnTheMarket
Senior Marketing Manager (Maternity Cover)

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COSTAR GROUP - SENIOR MARKETING MANAGER (MATERNITY COVER - 13 MONTHS), ONTHEMARKET - LONDON
OVERVIEW
CoStar Group is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives.
We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to our customers. We’ve continually refined, transformed, and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors. We continue that effort today and are always working to improve and drive innovation. This is how we deliver for our customers, our employees, and investors. By equipping the brightest minds with the best resources available, we provide an invaluable edge in real estate.
In December 2023, CoStar Group purchased OnTheMarket with the intention of developing this well-established brand into the UK's number 1 Residential Property portal. Supported by the deep expertise of CoStar Group and our Homes and Apartments teams, we will develop a world-class user experience through offering the very best written content, imagery, design, and functionality. The OnTheMarket product will support home buyers, sellers, and agents better than ever!
Learn more about OnTheMarket.
ROLE DESCRIPTION
We are looking for an experienced and commercially-minded Senior Marketing Manager to lead our CRM and customer communications strategy across both B2B and B2C audiences, while supporting the delivery of wider marketing and brand initiatives on a Maternity Cover basis.
A key focus of the role will be developing and optimising our customer lifecycle marketing programme. Working with a new email platform, the successful candidate will play a central role in defining our CRM strategy, establishing best practice, and building the foundations for future growth.
The role manages a small team responsible for delivering high-quality communications to estate agent and new homes developer customers and prospects, while also supporting consumer marketing activity. Alongside CRM leadership, the role will support the planning and execution of broader marketing initiatives, including integrated marketing campaigns, product launches, events, proposition development, and commercial marketing activity.
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The role works closely with senior stakeholders across the business and supports the delivery of wider company objectives. It acts as a key link between Marketing, Product, Sales, Data, Operations, IT, Legal, and Executive Leadership teams.
This role will appeal to a CRM and customer communications expert who enjoys combining strategic thinking with hands-on delivery and is comfortable working across a broad range of marketing disciplines.
RESPONSIBILITIES
- Develop and deliver CRM strategies across both B2B and B2C audiences, including segmentation, automation, lifecycle marketing, and behavioural communications
- Create and optimise customer journeys to improve engagement, conversion, retention, and customer value
- Work closely with Data, Product, and Technology teams to improve marketing effectiveness through targeting, personalisation, and audience insights
- Establish and promote CRM best practices, governance, processes, and quality standards
- Drive continuous improvement initiatives focused on campaign performance, customer experience, and operational efficiency
- Monitor, analyse, and report on campaign performance, using data and insight to inform future activity and business decisions
- Support the development and delivery of integrated marketing campaigns across owned, earned, and paid channels
- Lead marketing workstreams for major brand and commercial campaigns, coordinating internal stakeholders and external agency partners where required
- Support the planning and delivery of above-the-line marketing activity, including TV, video, audio, outdoor, and other brand-building channels, where applicable
- Manage campaign budgets, timelines, and creative development to ensure activity is delivered effectively and on schedule
- Support the planning and delivery of industry events, conferences, sponsorships, and exhibitions
- Deliver presentations, reports, and recommendations to senior stakeholders and Executive Leadership
- Support the delivery of B2B and B2C marketing communications across channels beyond email
- Act as the guardian of the OnTheMarket brand, ensuring the consistent application of creative standards, messaging, and tone of voice in line with OnTheMarket and CoStar Group brand guidelines
- Collaborate with Marketing, Product, Sales, IT, Legal, and Executive teams to support new product launches, commercial initiatives, and business priorities
- Foster a culture of testing, learning, innovation, and continuous improvement within the team
- Conduct regular performance reviews, development discussions, and coaching for direct reports


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QUALIFICATIONS
- Bachelor’s degree or equivalent experience
- Significant hands-on experience in CRM, lifecycle marketing, or email marketing
- Proven experience developing segmentation strategies, automated customer journeys, and customer communication programmes
- Strong understanding of personalisation, A/B testing, database marketing, and marketing automation
- Experience analysing campaign performance and translating insight into actionable recommendations
- Experience working with marketing platforms, CRM systems, and customer data
- Strong project management skills with the ability to manage multiple priorities and stakeholders simultaneously
- Excellent stakeholder management and communication skills
- Experience managing and developing team members
- Comfortable operating at both a strategic and delivery level
- A proactive, hands-on approach with a willingness to roll up their sleeves and support delivery when required
- Comfortable working in a fast-paced environment with changing priorities and deadlines
- Strong commercial awareness and attention to detail
- A creative eye and passion for delivering high-quality customer communications
DESIRABLE QUALIFICATIONS
- Experience marketing to both B2B and B2C audiences
- Experience managing integrated multi-channel marketing campaigns
- Experience working with creative, media, and production agencies
- Experience supporting or delivering above-the-line advertising campaigns, including TV, radio, audio, outdoor, or broader brand-building activity
- Experience within property, marketplace, technology, or digital businesses
WHAT’S IN IT FOR YOU?
Working at CoStar Group means you'll enjoy a culture of collaboration and innovation that attracts the best and brightest across a broad range of disciplines. As well as having an outstanding working environment, equipped to help you to be your best, other perks include full private medical cover, dental cover, Life Assurance, and member rewards, 28 days annual leave, a competitive pension, season ticket loans, enhanced maternity and paternity pay, and much more!
At CoStar, we recognise the positive value of diversity and promote equality. We aim at all times to recruit the person who is most suited to the job and welcome applications from people of all backgrounds including but not limited to; people of all genders, of all ages, sexual orientations, ethnicities, nationalities, religions, and beliefs.
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