BE AI Engineer (Contract)

Harnham; Greater London; Remote; GBP 65,000 - 95,000; Full time

Job summary

Harnham is seeking a senior engineering lead to oversee the development and enhancement of a proprietary data platform bridging internal systems and HubSpot. This fully remote contract spans 8 months, starting immediately, with a focus on scalable architecture and cross-team collaboration.

You'll mentor engineers, drive Node.js and TypeScript services, and partner with commercial, product, and HubSpot teams to deliver pragmatic solutions, leverage Agentic AI technologies, and align platform

Qualifications

• Experience with GitHub Actions in modern development environments.
• Understanding of HubSpot architecture, integrations, and platform capabilities.
• Proven experience working with Agentic AI technologies and solutions.
• Ability to lead conversations with both technical and non-technical stakeholders and build consensus around solutions.

Responsibilities

• Lead development and ongoing enhancement of a proprietary commercial data platform bridging internal systems and HubSpot.
• Drive architectural decisions and define scalable solutions across multiple business and engineering stakeholders.
• Gather requirements and translate them into deliverables with commercial, product, and engineering teams.
• Maintain, optimise, and develop Node.js and TypeScript services.

Skills

GitHub Actions

HubSpot

Agentic AI

System design

Mentoring engineers

DevOps practices

Event-driven arch

Stakeholder leadership

Tools

GitHub

Kafka

Job description

Fully Remote

8 Month Duration

The Company

They are a global technology and digital marketing organisation operating at scale across online consumer platforms. Their products combine data, technology, content, and partnerships to connect highly engaged audiences with relevant digital experiences. With a strong engineering culture and significant volumes of commercial data flowing through their platforms, they continue to invest in the systems and tooling that support business growth. This contract supports a key engineering function during a period of planned leave cover.

The Role and Deliverables

• Lead development and ongoing enhancement of a proprietary commercial data platform that acts as a bridge between internal systems and HubSpot.
• Drive architectural decisions and define scalable solutions across multiple business and engineering stakeholders.
• Work closely with commercial, product, and engineering teams to gather requirements and translate them into deliverables.
• Support the maintenance, optimisation, and feature development of existing Node.js and TypeScript services.
• Collaborate with HubSpot teams and internal stakeholders to ensure platform design aligns with wider business objectives.
• Identify dependencies, manage technical discussions, and provide guidance throughout delivery.

Your Skills & Experience

• Experience working with GitHub and GitHub Actions in modern development environments.
• Understanding of HubSpot architecture, integrations, and platform capabilities.
• Proven experience working with Agentic AI technologies and solutions.
• Ability to lead conversations with both technical and non-technical stakeholders and build consensus around solutions.
• Strong system design and software architecture capabilities.
• Experience mentoring engineers and supporting technical growth within teams.
• Ability to take ownership of complex engineering challenges and deliver pragmatic solutions.
• Exposure to DevOps practices is beneficial.
• Experience with Kafka or event-driven architectures would be advantageous.
• Previous experience within digital marketing, affiliate platforms, online gaming, or related sectors is desirable.