Junior Full Stack Developer job at London Full Time NEW

This is a 3-month initial contract for a Junior Software Developer to join a fast-paced team building a cutting-edge AI analytics platform. You’ll work across the full stack, contributing to live product features while learning rapidly in a high-impact startup environment.

Client Details

Our client is an early-stage, venture-backed technology company operating at the intersection of data and artificial intelligence. They’re building a platform that allows businesses to interact with data through natural language, combining modern data infrastructure with advanced AI capabilities.

Based in central London, the team works closely together in-person, creating a collaborative and high-energy environment where passionate technologists can thrive and grow quickly.

Description

• Build and maintain full-stack features across backend, APIs, and frontend
• Develop data ingestion pipelines and design scalable database schemas
• Integrate AI capabilities into the product using modern AI APIs
• Contribute to frontend development in React, focusing on user experience
• Collaborate closely with engineers and founders to ship quickly and iterate
• Support testing, debugging, and documentation to ensure high code quality

Profile

• Experience or solid knowledge of .NET / ASP.NET Core and React
• Strong understanding of SQL and relational database design
• Comfortable working with REST APIs and system architecture concepts
• A genuine passion for software development, AI, and emerging technologies
• Someone who builds in their own time, experiments, and is naturally curious
• Proactive, resilient, and thrives in a fast-moving startup environment
• Strong attention to detail and a collaborative mindset
• Bonus: exposure to AI APIs (OpenAI, Anthropic, etc.) or AWS
• Active GitHub or portfolio demonstrating hands-on coding

Job Offer

• Initial 3-month contract with strong potential extension
• Opportunity to work on cutting-edge AI technology in a real-world product
• Direct access to founders and ability to shape what gets built
• Rapid learning in a zero-to-one startup environment
• A team of passionate builders who care deeply about technology and product