Senior Developer

£65,000–£75,000 + EMI Share Options

London-based | Hybrid (1–2 days/week in-office)

London applicants only – in-office work required

Help us fight disinformation with AI

At Valent, we've built Ariadne – a world-first multi-agent AI system that detects and counters disinformation.

Trusted by global clients, Ariadne is used to analyze news and social media narratives to help decision-makers respond to emerging information threats.

We’re looking for a Senior Full Stack Developer to lead the evolution of our platform — integrating AI/ML systems, developing user dashboards, and delivering robust SaaS features at speed.

What you’ll do:

• Build and scale full-stack features using React, Django/FastAPI, and GraphQL
• Integrate AI components into a polished, production-grade product
• Develop internal tools, streamline processes, and improve UX/UI
• Design and maintain scalable infrastructure on AWS (ECS/EKS, CDK)
• Collaborate with a lean, senior team across ML, product, and design
• Lead on sprint planning, staging, and incident response

What we’re looking for:

• Strong Python developer with SaaS and AI product experience
• Deep knowledge of React, AWS, and container-based environments (Docker/Kubernetes)
• Experience working across the stack, from backend APIs to frontend UX
• Comfortable shipping fast, solving hard problems, and debugging under pressure
• Excellent communicator who thrives in collaborative hybrid teams
• Must be London-based and able to attend our Ladbroke Grove office weekly

Why Join Valent?

£65k–£75k + EMI share options

Hybrid with a tight-knit London team

High-impact work with clients shaping public policy

Build mission-driven tech that matters

Ready to apply?

Click "Apply" or message us directly to discuss the role.

• Early applications are encouraged – we’re hiring fast.