Senior Software Engineer

Caledonian
1 week ago
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Senior Software Engineer - AI SaaS Platform

London (Hybrid - 2 days onsite)

£90,000 - £110,000 + bonus + benefits

A high-growth B2B generative AI scale-up based in central London is looking for a Senior Software Engineer to help build the next generation of its AI-powered SaaS platform.

Working within a fast-moving product engineering team, you will play a key role in designing and delivering new features that enhance how customers interact with AI-driven software. This is a product-led environment where engineers collaborate closely with product managers and designers to ship high-impact features and continuously improve the platform.

This role would suit an experienced engineer who enjoys building scalable systems, working across the full stack, and contributing to a product used by real customers.

Key Responsibilities

Design and deliver scalable features within a modern SaaS platform

Build reliable backend services and customer-facing functionality

Work closely with Product Managers and Designers to refine requirements and deliver solutions

Contribute to system design, architecture discussions and engineering best practices

Support the reliability and scalability of live production systems

Required Experience

Strong TypeScript / Node.js development experience

Experience building full-stack applications (React / Next.js)

Experience delivering cloud-based products in AWS, GCP or Azure

Infrastructure knowledge such as Terraform, Docker, Kubernetes or CI/CD pipelines

Experience working in startup or scale-up environments

A product mindset with strong collaboration across engineering, product and design teams

Nice to Have

Experience using Python within product development

Exposure to AI / LLM-driven products

Experience with microservices architectures

What’s on Offer

£90,000 – £110,000 base salary

Bonus scheme

Hybrid working (2 days per week in London)

Flexible working hours

Private healthcare & pension

Strong progression opportunities within a high-growth AI scale-up

The opportunity to work on cutting-edge AI products used by global customers

If you are a Senior Software Engineer looking to work on impactful AI-driven products in a fast-growing scale-up, apply now for more information

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