Lead Platform Engineer

• Negotiable
• London, England
• Permanent

Our client is seeking a Lead Platform Engineer to join an innovative technology business developing agentic AI solutions for the UK lettings and estate agency sector. This permanent, full-time role offers the opportunity to lead platform development, build scalable systems and shape how engineering teams use AI in a fast-paced environment. The role is available from a London office or remotely.

Key Responsibilities:

• Architect, design and build scalable backend systems and RESTful APIs from initial concept through to production.
• Develop and maintain microservice and event-driven architectures supporting real-time operational workflows.
• Lead a small team of engineers, supporting delivery, reviewing code and maintaining a high technical standard.
• Set best practice for agentic AI development, including the use of Claude Code, LLMs and AI-powered engineering workflows.
• Contribute to technical strategy, architecture decisions and long-term platform planning alongside the Head of Engineering.
• Maintain secure, performant and reliable systems, services and data pipelines as the platform scales.
• Work closely with product teams to understand lettings workflows and develop technology that solves meaningful operational challenges.
• Drive technical improvements that support dependable delivery, quality assurance and continuous innovation.

Job Requirements:

• Significant hands-on software engineering experience, ideally within AI, SaaS, automation or other technology platforms.
• Strong expertise in Node.js and NestJS, with experience designing and building RESTful APIs and microservice-based systems.
• Practical knowledge of Kubernetes and Google Cloud Platform (GCP).
• Experience with API testing, automated testing and maintaining high standards of software quality.
• Understanding of agentic AI, large language models and the challenges of operating AI pipelines at scale.
• Experience with event-driven systems, secure data pipelines and cloud-native application development.
• Knowledge of Next.js and frontend development would be advantageous.
• Experience working with technologies such as PostgreSQL, MongoDB and vector databases such as Qdrant.
• Ability to lead engineers while remaining a highly capable hands-on builder and technical decision-maker.
• Degree-level education in Computer Science, Engineering, Mathematics or a related discipline.

What the Role Offers:

• Significant technical ownership from the outset, with the opportunity to influence architecture and engineering standards.
• Direct collaboration with senior leadership and access to strategic product and technology decisions.
• Flexible working from a London office or remotely.
• Opportunity to work at the forefront of agentic AI and automation within the property technology sector.
• Leadership responsibility within a small, ambitious and technically focused team.
• Scope to shape scalable systems used across the UK lettings and estate agency market.

This is an excellent opportunity for a Lead Platform Engineer who enjoys solving complex technical problems, leading from the front and building AI-enabled systems from the ground up. Apply now to take ownership of a critical technology platform and help define the future of agentic engineering.