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# Senior Software Engineer

- **Company:** Tipalti
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £65,103.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Automated Storage and Retrieval Systems, Code Review, Node.Js, Pair Programming, TypeScript, ReactJS, Large Language Models, Microservices
- **Published:** September 15, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5883563880

## About the Role

You might be a great fit if:

 * You take pride in building reliable, high-quality AI-powered software

 * You think in systems and care about long-term maintainability - including of AI/LLM pipelines

 * Youve built or shipped features using LLMs, agents, embeddings, or similar AI tooling

 * You enjoy collaborating and shaping ideas early, especially where the "right approach" isnt obvious yet

 * Youre comfortable mentoring others and sharing knowledge

 * You thrive in environments where you have ownership and influence

 * Youre adaptable and excited to learn new AI techniques, models, and domains

## Description

As a Senior AI Software Engineer, youll play a key role in launching and scaling a new AI-native product area. Youll work in a cross-functional squad to:

 * Turn ambiguous problems into well-designed, scalable AI-powered systems

 * Build high-quality, LLM-driven features end-to-end - from prototype to production

 * Design and integrate agentic workflows, retrieval systems, and model-orchestration pipelines

 * Deliver AI solutions that make a measurable difference for customers

Youll contribute across the stack, with a strong focus on backend APIs and services that power AI/LLM-driven functionality in expenses and procurement.

Our Current Stack

 * React Node.js

 * JavaScript & TypeScript

 * LLM APIs (OpenAI/Anthropic/similar)

 * Vector databases & retrieval pipelines

That said, our interview process is technology-agnostic. We care more about strong engineering fundamentals, applied AI/ML judgment, and a learning mindset than specific framework experience.

What Youll Be Doing

 * Design, build, and ship end-to-end AI-powered features for a new product

 * Collaborate closely with Product Managers and Designers to shape technical and AI strategy

 * Develop and evolve scalable backend APIs, microservices, and LLM-orchestration layers

 * Build robust evaluation frameworks to test and improve model performance and reliability

 * Write clean, well-tested, maintainable code - including around probabilistic/AI components

 * Participate in code reviews, architecture discussions, and pair programming

 * Mentor junior engineers and help raise engineering and AI-quality standards

 * Contribute to a team culture of continuous learning and shared success


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