Developer – Digital Products, AI & Innovation (Freelance Contract)

Help us build the next chapter of Greenhouse 

Over the past two years, we’ve built a clear AI and product innovation roadmap, expanded our in-house development capability and partnered with clients to design and deliver websites, digital products, tools and AI-enabled solutions that drive measurable impact. 
 
We’re looking for an experienced developer to join us – initially on a three-month contract but with strong potential to extend, to help scale and accelerate this next stage of our product and technology capability. 

This is not a conventional agency development role. 

You’ll work alongside a highly experienced team of strategists, product thinkers and developers to build client products, internal systems and AI-enabled services that support meaningful, real-world outcomes. The role combines hands-on development with the opportunity to shape how technology, automation and AI are integrated across the business and our client work. 

We’re looking for someone entrepreneurial, highly capable and excited by innovation. Someone who enjoys building, experimenting and solving complex challenges in a fast-moving environment with genuine purpose behind the work. 
 

Why Greenhouse? 

At Greenhouse, we work with organisations tackling some of the world’s biggest challenges, from sustainability and climate to social impact, behaviour change and purpose-driven transformation. 
 
We believe technology and AI should be used responsibly, ethically and intentionally — not simply for automation’s sake, but to unlock better thinking, better experiences and better outcomes for people and planet. 
 
We’re building a different kind of agency: 
• one that moves fast 
• experiments boldly 
• embraces AI thoughtfully 
• develops products and services that create measurable impact for clients 
 
This role will play a central part in that evolution. 

The opportunity 

You’ll work across three areas 

 
Building high-quality digital experiences 

You’ll support the development and evolution of client websites and digital platforms, helping us improve quality, scalability and technical performance across projects. 
 
This includes: 
• building and improving websites 
• working across Webflow, WordPress and modern CMS platforms 
• integrating APIs and third-party services 
• improving development workflows and handovers 
• introducing scalable technical approaches where appropriate 
• supporting experimentation with headless and component-driven systems 
• helping raise technical standards across the agency 

Building AI-powered products and services 

A major focus of this role is helping Greenhouse create and develop new digital products, AI tools and scalable services that we can offer clients. 
 
We want to create innovative products and capabilities that: 
• help clients accelerate impact 
• unlock new value and insight 
• improve engagement and performance 
• create new revenue opportunities for Greenhouse 
 
You’ll help turn ambitious ideas into real, usable products via prototyping, testing and evolving solutions that combine strong technical foundations with practical client value. 
 
This could include: 
• AI-powered audience tools 
• insight and intelligence platforms 
• campaign and engagement tools 
• automation systems 
• API-driven digital services 
• internal IP and productised offerings 
 
We’re looking for someone excited by experimentation, product thinking and building things from the ground up. 

Helping transform Greenhouse through AI 

Alongside client-facing innovation, you’ll help Greenhouse evolve its own digital business and operational workflows. 
 
We’re embedding AI across the agency to help us: 
• work smarter 
• reduce manual overhead 
• improve delivery quality and speed 
• strengthen collaboration 
• optimise internal systems and workflows 
• create better outcomes for clients 
 
You’ll work closely with leadership and the Impact Lab team to identify opportunities where AI, automation and better systems can fundamentally improve how we operate. 
 
This is about meaningful transformation, not superficial AI adoption. 
 
We care deeply about: 
• ethical AI use 
• transparency 
• responsible implementation 
• human-centred design 
• protecting creativity and critical thinking 
• ensuring technology supports people rather than replacing them 
 
We want someone who shares those values. 

What we’re looking for 

We’re less interested in rigid job titles and more interested in mindset, capability and ambition. 
 
You might be a strong midweight developer ready for something bigger, or a more experienced developer looking for meaningful work with greater autonomy and influence. 
 
You’ll likely have: 
• strong JavaScript fundamentals 
• experience building digital products, websites or applications 
• confidence working with APIs and integrations 
• backend experience with Node, Python or similar 
• experience shipping real-world projects end-to-end 
• curiosity about AI and emerging technologies 
• comfort working in ambiguity and moving quickly 
 
Bonus points for: 
• experience integrating AI into products or workflows 
• no/low-code experience (Webflow etc.) 
• agency experience 
• product-thinking mindset 
• experience with AI coding tools such as Claude Code or Codex 
• strong opinions on where custom development adds value versus off-the-shelf tools 

Who you are 

This role is for someone who: 
• loves building new things 
• is entrepreneurial and proactive 
• wants ownership and influence 
• enjoys solving complex problems 
• cares about ethics and impact 
• is excited by the possibilities of AI 
• wants to help shape the future of a growing business 
 
You’ll thrive if you’re motivated by purpose as much as technical challenge. 

Contract details 

• Initial three-month freelance contract 
  • Strong potential to extend 
  • Opportunity to shape long-term technical direction at Greenhouse 

Why this matters 

We believe agencies need to evolve. 
 
The combination of AI, product thinking and communications strategy is creating entirely new opportunities to help organisations create change. 
 
We want Greenhouse to be at the forefront of that shift. 
 
This role is an opportunity to help build what comes next.