Senior Software Engineer – Full Stack/ AI Driven Tools

JR United Kingdom; City Of London; On-site; GBP 70,000 - 100,000; Full time

Job summary

A fast-growing health tech company in London seeks a Senior Software Engineer to build AI-driven tools for frontline professionals. You'll develop scalable backend services, real-time interfaces, and drive architectural improvements while collaborating closely with cross-functional teams to make a meaningful difference in healthcare.

Qualifications

• 5+ years in software engineering across full stack environments.
• Experience with complex systems and meaningful scale.
• Interest in AI/ML with hands-on curiosity.

Responsibilities

• Write clean code with a product-focused mindset.
• Own feature development from design to deployment.
• Drive architectural improvements and evaluate new tools.

Skills

Software Engineering

AI/ML Interest

Tools

Ruby on Rails

PostgreSQL

Docker

Terraform

Job description

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Senior Software Engineer – Full Stack/ AI Driven Tools, london (city of london)

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Client:

Block MB

Location:

london (city of london), United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

4

Posted:

26.06.2025

Expiry Date:

10.08.2025

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Job Description:

Join a fast-growing health tech company using AI to solve high-impact, real-world problems. Building tools that help frontline professionals reduce admin and focus on delivering care, my client are looking for engineers who want their code to make a measurable difference.

What You’ll Be Building

• AI-powered web applications (think speech-to-text, smart summarisation, and automation of manual workflows)
• Scalable backend services and internal APIs to support data-heavy processes
• Realtime interfaces using modern frontend frameworks (HTMX/Turbo/Alpine or similar)
• Integrations with LLMs (e.g., OpenAI, Claude) to optimise and automate user workflows
• Developer tooling and infrastructure to support continuous deployment and high availability

Tech Stack Overview (this isn’t a list of all the things you need, just giving you a good overview of what is on offer)

• Backend: Ruby on Rails, PostgreSQL, Sidekiq, Redis, AWS
• Infra: Docker, Terraform, GitHub Actions, CloudWatch

What You’ll Do

• Write clean, well-tested code across the stack with a product-focused mindset
• Own feature development end to end — from design discussions to deployment
• Work with cross-functional teams to translate user pain points into elegant solutions
• Optimise application performance and system scalability as usage grows
• Drive architectural improvements and evaluate new tools/libraries

What We Look For

• 5+ years in software engineering, ideally across full stack environments
• Experience working on complex systems with meaningful scale
• A bias toward action and pragmatism: you ship working software quickly
• Strong product intuition and comfort collaborating beyond just engineering
• Interest in AI/ML — no PhD required, but hands-on curiosity essential
• Based in (or regularly able to visit) London for in-person collaboration