AI Automation & Full-Stack Product Engineer

CerealBox is seeking its first in-house AI Automation & Full-Stack Product Engineer to lead the development and continuous improvement of AI-driven solutions that transform how the agency operates. This role involves identifying real business problems and designing smart technical solutions that automate repetitive tasks, enhance decision-making, and improve overall efficiency. You will take ownership of True ROAS, a production platform connecting advertising spend to donation revenue, and explore innovative AI applications across copywriting, creative generation, media buying, reporting, client communication, and workflow automation. This position requires a proactive mindset to question existing manual processes and determine the best approach—whether building custom tools or integrating existing ones—to make systems significantly better.

Key Responsibilities
- Own and maintain the True ROAS platform, ensuring reliability, security, and continuous enhancement.
- Identify repetitive tasks and opportunities for automation using AI tools, APIs, and models.
- Rapidly prototype AI and automation solutions, deciding whether to build, integrate, or buy.
- Develop and maintain full-stack applications using React, TypeScript, PostgreSQL, and Supabase.
- Build and manage backend architecture, APIs, data pipelines, and third-party integrations.
- Collaborate closely with users to understand problems, design intuitive interfaces, and iterate based on feedback.
- Keep AI systems updated with the latest models and technologies, ensuring they deliver real value.
- Explore advanced AI applications including AI copywriting, creative and video content generation, AI-assisted media buying, and internal AI assistants.
- Monitor system performance and resolve failures promptly to maintain smooth operations.

Required Qualifications
- Minimum 4 years of professional software engineering experience with strong full-stack skills.
- Proficiency in React and TypeScript for frontend development.
- Solid experience with PostgreSQL, data modeling, and API design.
- Proven track record of owning and maintaining production systems.
- Experience integrating third-party APIs and working with scheduled jobs or data pipelines.
- Strong product mindset with the ability to translate user needs into functional, clean interfaces.
- Ability to work independently, make technical decisions, and communicate clearly with non-technical team members.
- Genuine curiosity and enthusiasm for AI, automation, large language models (LLMs), and emerging technologies.

Preferred Qualifications and Benefits
- Experience with Supabase, Meta Marketing API, or performance marketing/ad-tech environments.
- Familiarity with marketing analytics, AI agents, tool calling frameworks, or LLM APIs such as Claude or OpenAI.
- Background in charity or fundraising technology, early-stage products, or agency settings.
- Skills in data visualization and product ideation are a plus.

What You’ll Get
- A high-ownership role with the freedom to experiment and innovate using AI and emerging technologies.
- The chance to build products that are actively used by a UK-based creative and performance agency focused on charities.
- Direct access to leadership and end-users, enabling impactful work and rapid feedback cycles.
- Opportunities to research, test, and implement better technology solutions.
- 21 days of paid annual leave.
- The satisfaction of contributing to work that helps charities raise more funds and make a difference.

Success in this role means delivering less repetitive work, smarter tools, better data, and faster decisions, ultimately empowering the CerealBox team to perform at their best. If you are excited by the challenge of building AI-powered products that truly matter and can demonstrate real-world examples of your work, this is the opportunity to make a significant impact.