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# Staff Software Engineers (TypeScript / Agentic AI)

- **Company:** Hays plc
- **Location:** Portsmouth, UK
- **Experience:** Expert
- **Salary:** £100,000.0
- **Contract:** Temporary contract
- **Skills:** Clean Code Principles, Artificial Intelligence, Amazon Web Services, Automation of Tests, Big Data, Software as a Service, Cloud Computing, Software Quality, Continuous Integration, Software Design Patterns, DevOps, Distributed Systems, Github, Microsoft SQL Server, Node.Js, Redis, Software Engineering, TypeScript, Retrieval-Augmented Generation, Large Language Models, Software Security, Agentic-AI, Vue.js, Kubernetes, NestJS, Devsecops, Microservices
- **Published:** October 3, 2026
- **Apply:** https://www.totaljobs.com/job/staff-software-engineer/hays-job108074622

## About the Role

These roles do not offer Visa Sponsorship

 - Circa 5+ years' experience working with TypeScript
 - Must have worked with Agentic AI., We're looking for proven Senior / Lead / Principal / Staff level Engineers leaders who are passionate about working hands-on building best-in-class SaaS products.

You'll have extensive commercial experience developing software within Full Stack TypeScript environments (roughly 5+ years) and be comfortable owning architecture, design decisions and implementation within complex production systems.

Experience with Node.js, NestJS, Vue, Redis, SQL Server, SingleStore, automated testing, software security, scalable distributed systems and cloud-native development (Github on AWS) complete the wider stack.

We're looking for a strong understanding of clean code principles, SOLID design patterns and modern engineering practices. You'll have experience working within mature CI/CD and DevOps teams and in a high-throughput, big data, microservices environment.

Experience delivering Agentic AI capabilities is also essential. This could include AI agents, autonomous workflows, LLM-powered applications, orchestration frameworks, RAG implementations or similar AI-driven product functionality.

Strong stakeholder engagement skills are also important, as you'll regularly work with Product teams, engineering leadership and business stakeholders to shape solutions and drive technical outcomes.

## Description

This is an organisation experiencing significant growth across its engineering function. As part of that expansion, they are recruiting multiple Software Development Managers alongside several Staff Engineers, creating an excellent opportunity to join at a pivotal stage of the company's continued growth. You'll be working alongside some of the strongest technical talent in the business whilst helping shape the next phase of engineering maturity and scale.

As a Staff Engineer, you'll operate as one of the technical leaders within the engineering organisation, working across architecture, solution design, product delivery and software quality. This is a hands-on technical leadership role where you'll take ownership of complex engineering challenges whilst influencing technical direction across multiple teams.

You'll work closely with stakeholders on solution design, requirements gathering and architecture decisions, helping shape products from concept through to deployment. You'll prototype and explore new approaches where appropriate, support Product teams with breaking down work into deliverable outcomes and ultimately turn ideas into high-quality software running in production.

The role sits within a modern TypeScript environment utilising Node.js microservices, Vue, Redis, SQL Server and SingleStore, all deployed within AWS following DevSecOps principles. Engineering teams deploy to production daily and take ownership of the products they build throughout their lifecycle.

The organisation is investing heavily in next-generation product capabilities, particularly around AI-driven development and Agentic AI. As a result, you'll have the opportunity to influence how modern AI technologies are used to accelerate software delivery and create better customer outcomes.