Software Engineer (Frontend) - GenAI Products

Harnham is seeking a product-minded Software Engineer to help take GenAI ideas from concept to reality. The role involves building and deploying GenAI features, partnering with product and design teams, and owning the end-to-end product development process.

Responsibilities:

• Build, and deploy GenAI, LLM, and RAG-powered features used by real customers
• Own 0→1 product development, translating fuzzy ideas into shipped ML systems with a primary focus being on the user experience
• Partner closely with product, design, and engineering to define requirements, success metrics, and tradeoffs
• Prototype quickly, run experiments, and iterate based on real user feedback
• Take models from notebook to production, owning pipelines, deployment, and monitoring
• Help shape product direction by connecting ML capabilities to user outcomes

Requirements:

• 4+ years of experience building and deploying machine learning systems
• Hands-on experience with GenAI / LLMs (RAG, embeddings, prompt design, fine-tuning)
• Strong product intuition — experience working closely with PMs or owning product decisions yourself
• Proven experience delivering early-stage or 0→1 customer facing products
• Strong Typescript skills and experience with modern Frontend frameworks
• Excellent communication skills and comfort explaining technical tradeoffs to non-technical partners