Lorien are partnering with an exciting start up as they build an exciting platform from the ground up and they are going through an exciting period of growth.We\''re supporting them in hiring a

Senior Software Engineer

to help shape the technical vision and build scalable, AI-powered solutions from the ground up. This is a hands-on role where you\''ll work across the stack, solve real customer problems, and play a key part in their growth journey.What You\''ll Do

Backend Development:

Build and maintain scalable APIs and services using Python (FastAPI), integrating with AI models and data platforms.Frontend Development:

Develop responsive, high-performance user interfaces with React/Next.js.AI Integration:

Connect to LLMs and ML services (e.g., OpenAI, AWS Bedrock), supporting prompt engineering, embeddings, and vector databases.Data Engineering:

Handle structured and unstructured data, build ingestion pipelines, and design efficient schemas (Postgres/NoSQL).Architecture and Design:

Influence technical decisions and contribute to scalable, modular system design.Code Quality:

Promote best practices in testing, CI/CD, code reviews, and documentation.Innovation:

Explore and recommend new tools, frameworks, and approaches in full-stack and AI development.Experience

5+ years in full-stack developmentStrong skills in

Python ,

React/Next.js , and

cloud (AWS)Experience with

AI/ML APIs ,

vector search , and

data engineeringAWS and containerised deployments (Docker and ECS)Solid understanding of secure coding and data privacyA proactive, ownership-driven mindset and great communication*The role is on a remote basis with candidates must reside and have full right to work status in the UKCarbon60, Lorien and SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy.

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