Software Test Engineer

Rainbird Technologies Ltd.; Remote; GBP 80,000 - GBP 100,000; Full time

Job summary

A leading AI company in the UK is seeking a Software Test Engineer to ensure the reliability and quality of their AI platform. You will perform manual testing, maintain and expand automated end-to-end tests, and collaborate closely with developers to foster a bug-free environment. This role is designed for those with a keen attention to detail and a passion for software quality. The company offers a remote work culture and a comprehensive benefits package that includes competitive pay and generous annual leave.

Benefits

25 days annual leave plus bank holidays

Birthday leave

Holiday trading scheme

Remote working options

Flexible working hours

Employee Assistance Programme

Health benefits

Training and tooling support

Qualifications

• 1-2 years of experience in manual software testing, ideally in AI.
• Desire to develop automated tests.
• Enjoys detailed bug investigation.

Responsibilities

• Conduct exploratory testing on new features.
• Maintain end-to-end tests written in Playwright.
• Report bugs with detailed reproduction steps.

Skills

Manual software testing

Bug investigation

Verbal and written communication

Team collaboration

Attention to detail

Tools

Playwright

Node.js

Python

Typescript

Golang

Job description

Join Rainbird as a Software Test Engineer and help safeguard the quality of AI used for high-stakes decisions. You’ll work closely with engineers to test, challenge, and strengthen our platform, ensuring every release is reliable, consistent, and production-ready.
This role is ideal for someone who cares about detail, enjoys finding edge cases, and wants real ownership of software quality in a product where trust genuinely matters.

Contract Type: Permanent, Full Time
Location: UK (Remote)
Package: Competitive, based on experience

About Rainbird

Rainbird is redefining the future of explainable AI. Our platform enables organisations to build deterministic, transparent decision‑automation systems for industries where accuracy, trust, and accountability matter most – including healthcare, banking, insurance, and professional services.

At the heart of Rainbird is a symbolic reasoning engine that makes every automated decision fully transparent, auditable, and justifiable. We empower enterprises to scale their expertise, combining human insight with machine precision.

We’re growing fast and this is an opportunity to join a mission‑driven team shaping the future of trusted AI. You’ll thrive in a fast‑evolving environment, working closely with the software engineers – accuracy and great communication skills are key. If this sounds like you, we’d love to hear from you!

Why Rainbird?

Impactful work: Rainbird helps some of the world’s biggest enterprises solve complex, high‑stakes business problems.

Cutting‑edge technology: Work at the intersection of symbolic reasoning, large language models, and explainable AI.

Growth & learning: Accelerate your career with hands‑on experience in knowledge modelling, decision automation, and hybrid AI.

Remote‑first culture: Work flexibly from anywhere in the UK, supported by a collaborative, inclusive, and curious team.

Great benefits: Competitive pay, generous annual leave and opportunities to lead in a rapidly expanding company. See below for more details.

Role Specification

As a Software Test Engineer, you will be responsible for testing our online platform and ensuring no major bugs enter production. You’ll be maintaining and expanding our suite of automated end‑to‑end tests and use exploratory testing to help your teammates deliver new bug‑free features and software fixes. We are looking for someone who will be part of the development team and can build positive relationships with their colleagues based on the shared desire to improve our product.

This is a role that requires initiative and creativity to find new and better ways of discovering bugs and preserving the quality of our platform.

Key Responsibilities

1. Manual Testing

• Use exploratory testing techniques to test new features and bug fixes in the Rainbird Studio.
• Find bugs and isolate exactly when and how they occur.
• Make plans on how to test all scenarios and edge cases.
• Report back which scenarios and edge cases were tested.

2. Automated End‑To‑End Tests

• Maintain our suite of end‑to‑end tests written in Playwright, updating them when required.
• Write new tests for features that are being developed and bugs that have been fixed.
• Ensure the end‑to‑end tests run smoothly in our pipelines, improving the setup for where and how they run.
• Read and interpret test failures and work with the developers to debug problematic code.
• Fix frequently failing or flaky tests.

3. Report Bugs

• Isolate Bugs and describe in detailed step‑by‑step instructions how to reproduce them.
• Tell the developers about any remaining inconsistencies, imperfections and errors that are linked to the ticket.
• Keep an overview of bugs and current problems in our platform and quickly make connections between them.

Skills & Qualifications

• At least 1‑2 years of experience in manual software testing, ideally in a product linked to AI.
• The desire to move into developing automated tests.
• Some experience in a programming language such as such as Node.js, Typescript, Python or Golang (other languages welcome)
• Enjoys investigating bugs in detail, clicking around and working out exactly when and how a bug occurs.
• Enjoys it even more when the bugs get fixed quickly and new features work as they are supposed to.
• Strong verbal and written communication skills – can explain complex scenarios and write clear technical tickets.
• Team player – works together with the developers to deliver bug‑free software.
• Loves learning new skills and is not scared to make mistakes.
• Excellent attention to detail.
• Able to prioritise work depending on the company’s needs.

Preferred

• Experience working with an end‑to‑end testing framework such as Playwright.
• Experience writing tests in a programming language such as Node.js, Typescript, Python or Golang.
• Experience working in an Agile/Scrum environment.

Benefits of Working at Rainbird AI

• 25 days annual leave plus UK bank holidays
• Birthday leave – enjoy an extra day off for your birthday
• Holiday trading scheme – buy or sell up to 5 days of holiday per year
• Quarterly in‑person company meetups and engineering team hackathons
• Remote working work from home, with the option to visit or work at our office in Norwich any time
• Flexible working hours – whether you need to do the school run or have a dentist appointment, we’re flexible
• YuLife membership – includes:
  • Employee Assistance Programme (mental & physical health support)
  • Critical illness insurance
  • Life insurance
  • Wellness rewards for physical activity
• Health benefits – including eye test and flu vaccination vouchers
• Training and tooling – we support our engineers with access to premium learning resources and development tools, where possible

Rainbird is an equal opportunities employer.