Paid Media Specialist (fixed-term contract) September 2, 2026

Greenhouse is an award-winning communications agency with a mission to power positive social and environmental change.

We’re not like other agencies – our purpose is to have a positive impact on the world.

We’re a mission-driven business and our clients work in sectors where we can have the biggest impact on the transition to net-zero and beyond; from energy and clean tech to nature and conservation, from food and health to finance and transport.

We are looking for a Paid Media Specialist to join our Impact Lab team on a 15-month fixed-term contract.

The role will be responsible for planning and delivering multiple paid media campaigns, monitoring and optimising campaign performance, and working with the team to develop data-driven processes that deliver the best results for our clients.

We are looking for someone who has experience of delivering innovative paid media strategies and a strategic understanding of data and analytics.

This is a brilliant opportunity to use your skills to help amplify some amazing clients who are at the forefront of tackling the climate emergency.

Key responsibilities

• High-impact campaigns
• Use a consultative approach to communicate our paid media offering to both existing and prospective clients.
• Create, guide and deliver innovative paid media strategies, reporting on performance and optimisation to clients and account leads.
• Oversee paid media budgets for our client portfolio ensuring spend is maximised and impact is delivered.
• Nurture strategic partnerships with the platforms we use via Account Managers, Customer Success Managers or other external contacts.
• Test and trial new features or trends to share across our teams and ensure we are always delivering the best results for our clients.
• Data analytics and performance
• Have an in-depth understanding of how to maximise impact through optimisation and improvement based on data and insight.
• Input into integrated campaign plans and strategies to create the most impactful solutions for clients, leading on recommendations for data and analytics.
• Work closely with account leads to manage, track and evaluate campaign KPIs and prove ROI.
• A/B testing expertise to maximise ROI and enhance campaign effectiveness.
• Lead on the implementation of analytics reporting via Google Analytics with good level of GA4 experience.
• Be comfortable presenting regular strategic insight and recommendations to clients based on campaign performance, testing and best practice.
• Experience working across a range of digital channels - from SEM, SEO, Paid Social, Paid Search, Website, Display, Email, retargeting, etc.
• Experience developing data visualisations and dashboards to measure and monitor impact.
• Be entrepreneurial and challenge the status quo when it comes to performance and data for our clients.
• Team collaboration
• Share paid media knowledge and best practice with colleagues, supporting the wider team on paid media and performance-related activities.
• Push through ideas and initiatives that will continue to make Greenhouse efficient and progressive.
• Support the wider Greenhouse team in creating a strong, high-performing culture, in line with our values.
• Build relationships and work closely with teams across Greenhouse, educating them on paid media, performance, measurement, and data analytics.
• What we’re looking for

Essential skills & experience

• Solid experience within an integrated agency or in-house marketing team.
• Experience developing and delivering paid media strategies for integrated marketing campaigns, providing performance expertise and guidance both internally and externally.
• Strategic understanding of data and analytics.
• Experience contributing to data strategy and planning for integrated marketing campaigns.
• Exceptional knowledge of common data and digital platforms and tools.
• Strong technical experience of analytics tools and paid media platforms (particularly, but not limited to: Google Tag Manager, GA4, Linked In Ads, Meta Ads, Google Ads including Grant accounts, programmatic display).
• Experience negotiating, securing and managing paid media partnerships with online media publishers, from initial outreach and commercial agreements through to campaign delivery and performance management.
• Established presentation skills, with the ability to draw strategic insights from data and tell a compelling story.
• Experience working with cross-disciplinary teams including designers, developers and digital specialists such as SEO and CRO.
• Experience working or academic background within the sustainability sector.
• A strategic understanding of sustainability sector trends and key challenges.
• Personal specification
• We’re looking for someone who’s dynamic, driven and who wants to have a positive impact on the world.
• We’re seeking someone who is unafraid to take charge, be decisive and build support for key decisions made.
• We’re dealing with a climate emergency and to support our pioneering clients, we need to be proactive, agile, and smart in order to provide the most innovative, impactful solutions.
• We want this person to help us push boundaries and take our work to the next level, so they’ll need to be curious, ambitious, and able to take on a challenge, which means being comfortable with a bit of uncertainty.
• The next five years are critical in the race to Net Zero, and for the right person this is a career-defining chance to help drive the change that urgently needs to happen.

Why us?

At Greenhouse, we’re united by a common goal – our responsibility to care for the planet, and fight for climate and social justice, which makes coming to work meaningful, inspiring and fun.

We are a B Corp, committed to ensuring that our business is a force for good.

• Contract, salary and benefits
• Location: Bristol, UK.
• Flexible working: core hours 10am–4pm with 2 days per week expected in the Bristol office.
• Early finish Fridays (finish at 3pm every Friday).
• 25 days holiday (plus your birthday and office closure between Christmas and New Year).
• Additional paid holiday for Slow Travel (travelling via means other than flight).
• Access to Bupa cashplan (savings on everyday healthcare expenses).
• Ethical pension scheme with Aviva.
• Cycle to work scheme.
• Benefit in kind EV car club.
• Office perks such as breakfast, organic fruit, socials.

We have offices in London and Bristol, but this role is expected to be Bristol-based.

We operate a flexible hybrid-working approach, but you will be expected to spend an average of 2 days a week in the office.

You can apply for greater flexible working in accordance with your personal circumstances.

The diversity of our workforce is important to us, and we particularly encourage candidates from Black, Asian and Ethnically Diverse backgrounds or Disabled, D/deaf, LGBTQ+, and/or neurodivergent people.

To help us track the background of our applicants, we would appreciate you completing a short survey along with your application.

This will also help us to offer you the appropriate support if you are successfully invited for an interview.

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