Senior Software Engineer - LLM/AI Focused
Posted 2 days 23 hours ago by Harnham
Senior Software Engineer - LLM Focused
6-MONTH CONTRACT
Competitive Day Rate OUTSIDE IR35 Hybrid (1 day/week London)
Join an early-stage AI startup revolutionizing how creators, studios, and brands produce and interact with media. Using advanced LLMs and generative AI, this project is building a platform that transforms raw footage into dynamic narratives, scripts, and personalized content - empowering creativity at scale. You'll be part of a fast-moving team blending engineering excellence with cutting-edge AI research to redefine media workflows.
This stealth-mode startup is backed by leading investors and features a team of engineers and AI researchers passionate about the future of interactive media. The company's mission is to merge creativity and AI, delivering innovative products that reshape storytelling and digital content creation. You'll work in a flexible hybrid setup, with one day a week in their central London office.
As a Software Engineer, you'll help build the core infrastructure powering real-time media processing with LLMs and generative models. Your work will involve:
Developing scalable systems for ingesting, analyzing, and transforming video, audio, and text using AI
Orchestrating prompts, embeddings, vector search, and fine-tuned models to enable advanced media interactions
Building hybrid human-AI tools that blend creative workflows with robust engineering solutions
Collaborating closely with product designers, media professionals, and AI researchers to bring ambitious features to life
3+ years' experience in software engineering (Python, TypeScript, Go, or similar)
Practical experience with LLMs, generative AI, or related APIs (OpenAI, Claude, LangChain, etc.)
Strong backend/cloud infrastructure knowledge (AWS, GCP, microservices, scalable APIs)
Passion for media, creativity, and building innovative AI-driven products
Comfortable working in an agile, fast-paced startup environment
Experience with media processing tools (FFmpeg, WebRTC)
Familiarity with vector databases (Pinecone, Weaviate) and embedding workflows
Background in generative audio/video models or multimodal AI systems
Please register your interest by sending your CV and portfolio via the apply link on this page. We welcome unconventional introductions highlighting projects or side work you're proud of.