Neulinx
Senior Full Stack Engineer (AI)
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Senior Full Stack Engineer (AI)
London (Hybrid – 1 day per week)
Join One of the UK's Fastest-Growing AI Scale-Ups
Neulinx is partnering with a high-growth AI company that is transforming the way organisations adopt and embed AI into everyday work.
Following significant customer growth and strong investment, they're looking for an experienced Senior Full Stack Engineer to help scale a product already trusted by major enterprise customers.
This is an opportunity to join a business where engineering is at the heart of the company. You'll have genuine ownership, influence technical direction and build products that deliver real-world impact.
The Opportunity
As a Senior Full Stack Engineer, you'll play a key role in designing, building and scaling the platform across both frontend and backend. Working closely with the CTO, Product and Design teams, you'll take ideas from concept through to production, helping shape architecture, improve engineering standards and deliver features that customers rely on every day.
This is a hands-on role for someone who enjoys solving complex technical challenges while remaining close to the code.
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Responsibilities
- Design and build end-to-end product features across frontend and backend
- Develop scalable APIs and backend services
- Build intuitive, high-quality user experiences
- Influence technical architecture and engineering best practices
- Improve platform performance, scalability and reliability
- Collaborate closely with Product and Design to deliver customer-focused solutions
- Mentor engineers through technical leadership and code quality
- Ship production-ready software in a fast-paced product environment
Tech Stack
- React, Vue or another modern JavaScript framework
- TypeScript
- Python
- REST APIs
- PostgreSQL
- Azure, AWS or GCP
- CI/CD and modern DevOps tooling
You don't need experience with every technology listed, but you should be comfortable working across a modern full-stack environment.
About You
- Strong commercial experience building production web applications across frontend and backend
- Experience with React, Vue or Angular
- Excellent backend development experience, ideally with Python
- Strong API design and systems architecture experience
- Experience working with relational databases
- Confidence making technical decisions and owning delivery
- Experience collaborating closely with Product and Design teams
- A pragmatic approach to building scalable, maintainable software
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Nice to Have
- AI, LLM or Generative AI product experience
- FastAPI
- Multi-tenant SaaS platforms
- Azure or other cloud-native infrastructure
- Startup or scale-up experience
- Experience scaling and improving existing production systems
What's on Offer?
- £120,000–£140,000 salary
- Meaningful equity package
- Hybrid working (London – one day per week)
- 25 days holiday plus bank holidays
- Work alongside an exceptional engineering team
- High levels of ownership and technical autonomy
- The opportunity to help shape a product used by leading organisations
Interested?
If you're interested in learning more, we'd love to hear from you. Reach out to Neulinx for a confidential conversation, or apply with an updated copy of your CV.
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