Opus Recruitment Solutions
Senior Product Engineer
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Senior Product Engineer (AI) (OUTSIDE IR35)
Overview
We're looking for a Senior Product Engineer to join a team building innovative AI-powered digital products. You'll play a key role in designing, developing, and delivering modern web applications, working closely with Product, Design, and Engineering teams to create intelligent user experiences.
Duration: 6 Months
Location: London (Few days a month onsite)
Hours: 40 Hours Per Week
Start: ASAP
Tech Stack
- React
- TypeScript
- JavaScript (ES6+)
- Next.js/Node.js
- OpenAI
- Azure OpenAI
- Claude
- Gemini
- LangChain
- LangGraph
- Vercel AI SDK
- REST APIs
- Redux/Zustand
- Jest
- Cypress
- Playwright
- Azure/AWS/GCP
Essential Skills & Experience
- Strong commercial experience with React, TypeScript, and modern JavaScript
- Experience building and delivering AI-powered applications in production environments
- Hands-on experience integrating LLMs (OpenAI, Claude, Gemini, Llama, or similar)
- Experience developing AI-driven features such as chatbots, copilots, AI assistants, workflow automation, or recommendation engines
- Strong understanding of Prompt Engineering and AI API integration
- Experience building scalable, reusable frontend applications and component libraries
- State management experience with Redux, Zustand, or similar
- Experience consuming REST APIs and third-party services
- Strong understanding of performance, accessibility, testing, and modern engineering best practices
- Experience with Git, CI/CD, and Agile delivery environments
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Desirable Skills
- Next.js and Node.js experience
- Experience with RAG architectures, vector databases, and semantic search solutions
- Knowledge of LangChain, LangGraph, LlamaIndex, Semantic Kernel, or MCP
- Experience building AI agents and agentic workflows
- Exposure to Azure AI Foundry, Azure OpenAI, AWS Bedrock, or Google Vertex AI
- Experience with Storybook, Design Systems, and cloud platforms (Azure, AWS, or GCP)
- Understanding of AI governance, security, observability, and responsible AI practices
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Key Responsibilities
- Build and enhance AI-enabled digital products using React and modern JavaScript technologies
- Design and deliver intuitive, user-focused experiences powered by AI
- Integrate LLMs, AI services, and external APIs into customer-facing applications
- Collaborate with Product and Design teams to shape product strategy and technical direction
- Champion best practices across architecture, testing, performance, and code quality
- Drive innovation through the adoption of emerging AI technologies
Requirements
- Strong commercial React and TypeScript experience
- Previous experience delivering modern, user-focused web applications
- Exposure to AI technologies and LLM-powered solutions
- UK work eligibility
Interested?
If you're a Senior Product Engineer with strong React expertise and experience delivering AI-powered products, I'd be keen to discuss this opportunity further. Please get in touch with your latest CV for immediate consideration.
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