Senior Node.js Engineer

Senior Node.js Engineer - AI-Powered Publishing Platform
Day Rate Contract | 6 Months

We build digital products for some of the UK's most recognised brands, and we're looking for a Senior Node.js Engineer to join us on an exciting client engagement in the media sector.

You'll be contracted to Hedgehog Lab, working embedded within a major UK media client's engineering team. Outside IR35.

This is backend-heavy Node.js and TypeScript work. If your background is primarily frontend React, this isn't the right fit.

The Role

You'll work on a proprietary digital publishing platform that powers AI-driven text, audio and video content services for one of the UK's leading media businesses. You'll design and build APIs, integrate internal systems with third-party platforms, and contribute to AI-powered and agentic workflows running in live production.

What You'll Be Doing

• Developing and maintaining JavaScript APIs and services using Node.js and TypeScript at scale

• Building and integrating RAG pipelines and multi-step AI-orchestrated workflows

• Working with structured and unstructured data across MySQL, MongoDB, and blob storage

• Deploying and operating services on AWS, including Bedrock, OpenSearch, and CI/CD pipelines

• Writing reusable, performant, well-tested code with automated test coverage

• Collaborating with a Delivery Manager and Product Owner on planning and delivery

What We're Looking For

• Strong Node.js + TypeScript API and backend development -- this is not a frontend role

• Proven experience on large-scale projects where senior-level judgement was required

• Solid AWS background: cloud architecture, deployment, and CI/CD

• Hands-on experience with RAG pipelines and LLM integration patterns

• Comfort working across mixed data formats and storage types

• AWS Bedrock and vector/semantic search (e.g. OpenSearch) experience is a genuine advantage

Interested?

Send your CV to [contact details] or get in touch for a confidential conversation about the role.