AI Platform Engineer

AI Platform Engineer

Full-Time 70000 - 90000 £ / year (est.) No working from home possible
Harnham

At a Glance

  • Tasks: Design and build AI-powered features with a focus on reliability and production readiness.
  • Company: Fast-growing, remote-first tech company focused on innovative tools for global teams.
  • Benefits: Competitive salary, equity, fully remote work, flexible hours, and dedicated learning time.
  • Other info: Collaborative culture with opportunities for career growth and influence on product direction.
  • Why this job: Shape the future of AI systems and have a real impact in a high-ownership role.
  • Qualifications: Strong backend engineering experience and proven track record in AI or machine learning.

The predicted salary is between 70000 - 90000 £ per year.

This is a unique opportunity to shape the foundations of an AI-driven platform at an early stage. You will focus on building production-grade AI capabilities rather than experimental prototypes, working on systems that prioritise reliability, scalability, and real-world impact. The role combines strong engineering fundamentals with cutting-edge AI development, giving you genuine ownership and visible influence across the product.

The Company

They are a fast-growing, remote-first technology business building innovative tools used by product and engineering teams globally. With a collaborative and experimentation-led culture, they place strong emphasis on quality, user experience, and responsible AI development. Their environment encourages autonomy, continuous learning, and cross-functional collaboration. As they scale, they are investing heavily in AI to enhance their core platform and deliver tangible value to users.

The Role

  • Design and build AI-powered features with a focus on reliability and production readiness
  • Develop agent workflows interacting with structured data and knowledge systems
  • Build scalable retrieval systems across complex, versioned datasets
  • Implement guardrails, observability, and evaluation frameworks for AI systems
  • Design APIs and integrations with external tools and platforms
  • Collaborate closely with product and design to deliver end-to-end features
  • Contribute to technical direction, roadmap planning, and engineering best practices

Your Skills and Experience

  • Strong commercial experience in backend engineering and system design
  • Proven track record of delivering AI or machine learning features into production
  • Experience working with LLMs, agent frameworks, or AI-powered workflows
  • Solid programming experience including JavaScript and modern frontend frameworks
  • Experience designing and building APIs and distributed systems
  • Understanding of observability, scalability, and reliable architecture
  • Comfortable working in fast-paced, product-focused environments

What They Offer

  • Competitive salary between £100,000 and £130,000 plus equity
  • Fully remote working with flexible hours
  • High level of ownership and autonomy across features
  • Dedicated time for learning and experimentation
  • Strong focus on quality engineering and user experience
  • Clear opportunity to influence product direction and grow your career

How to Apply

If you are interested in building impactful AI systems in a high-ownership environment, apply now to find out more. Please note we cannot offer sponsorship for this position.

AI Platform Engineer employer: Harnham

As a fast-growing, remote-first technology business, this company offers an exceptional work environment that prioritises innovation and collaboration. Employees enjoy a high level of autonomy, competitive salaries, and dedicated time for learning, all while contributing to impactful AI solutions that shape the future of technology. With a strong emphasis on quality engineering and user experience, this is an ideal place for those looking to grow their careers in a meaningful way.

Harnham

Contact Details:

Harnham Recruitment Team

We think you need these skills to ace AI Platform Engineer

Backend Engineering
System Design
AI Development
Machine Learning
Large Language Models (LLMs)
Agent Frameworks
API Design