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Xpansiv

Global ESG commodity marketplace and data

Quality Assurance Engineer - AI Products

Test Automation EngineeringConfirmed live in the last 24 hours
Full-timeSheffield, UK£60k - £70k /yrRemote

About the Job

Requirements

  • At least 10 years of experience in software quality assurance, including manual and automated testing.
  • Experience creating test plans, documenting and executing test cases, validating defects, and supporting release-readiness decisions across multiple projects.
  • Experience with functional, end-to-end, cross-browser, regression, security, performance, API, and integration testing.
  • Experience testing or evaluating artificial intelligence, machine learning, or large language model-powered systems, including chatbots, copilots, agents, classifiers, Retrieval Augmented Generation applications, document-processing workflows, or decision-support tools.
  • Familiarity with generative artificial intelligence evaluation methods, including golden datasets, model-graded evaluations, prompt regression testing, hallucination detection, red-teaming, and quality-drift monitoring.
  • Working knowledge of prompt engineering, Retrieval Augmented Generation, agent-based systems, structured outputs, and artificial intelligence guardrails sufficient to test these systems effectively.
  • Experience with automated software testing tools such as Cypress, Playwright, Selenium, Rest Assured, or similar frameworks.
  • Experience testing microservices, application programming interfaces, and web services using tools such as Postman, SoapUI, Rest Assured, or similar API testing tools.
  • Proficiency in at least one scripting or programming language used for test automation, data validation, or evaluation tooling.
  • Experience with source version control tools such as Git.
  • Experience working in agile software development process models.
  • Experience interacting with developers, product managers, business analysts, business owners, and subject matter experts to review and validate test plans, test cases, test results, and defects.
  • Understanding of AI governance, responsible AI principles, data-handling guardrails, privacy considerations, and human-in-the-loop review practices.
  • Strong analytical, troubleshooting, and failure-mode thinking, with the ability to translate ambiguous requirements and AI behavior into concrete test scenarios.
  • Ability to work independently and collaboratively as part of a cross-functional team.
  • Ability to quickly absorb business and technical concepts, including unfamiliar AI workflows, data flows, and domain-specific business rules.
  • Ability to work calmly under tight deadlines, production-readiness pressure, or critical quality situations.
  • Curiosity and sound judgment when evaluating emerging AI capabilities, limitations, risks, and quality tradeoffs.

Responsibilities

  • Create test plans for AI-powered and traditional software applications, including manual, automated, performance, regression, security, and end-to-end testing.
  • Formulate and document test cases based on product requirements, user stories, acceptance criteria, AI governance standards, and business workflow expectations.
  • Execute test cases through targeted manual testing, automated testing, exploratory testing, and AI-specific evaluation methods.
  • Design, build, and maintain evaluation pipelines for AI-powered applications across Xpansiv business lines.
  • Develop evaluation datasets, golden sets, and scenario suites that measure accuracy, consistency, structured-output quality, policy adherence, and business-rule compliance of large language model outputs.
  • Detect, document, and reproduce AI-specific failure modes, including hallucinations, prompt injection, inconsistent outputs, formatting errors, data leakage, bias, unsafe responses, and model or prompt-update regressions.
  • Build automated and semi-automated AI evaluation frameworks, including model-graded assertions, regression harnesses, prompt test suites, and quality scorecards, alongside traditional QA automation.
  • Validate microservices, APIs, data extraction workflows, document-processing pipelines, Retrieval Augmented Generation systems, agents, and structured-output generation for business-critical use cases.
  • Perform functional, end-to-end, cross-browser, regression, security, performance, API, and integration testing for AI-enabled and non-AI system components.
  • Own quality gates and go/no-go readiness criteria for pilots, beta launches, production go-lives, and post-release model or prompt updates.
  • Establish and track quality KPIs, including test coverage, pass rates, defect density, escaped-defect rate, AI accuracy metrics, hallucination rate, evaluation-score trends, and release readiness.
  • Partner with AI Engineering to embed testing, monitoring, observability, evaluation, and quality controls into the AI development lifecycle.
  • Conduct safety, bias, adversarial, and red-team testing to support responsible and compliant AI behavior aligned to Xpansiv’s AI Usage Standard.
  • Work with developers, product managers, business analysts, business owners, and subject matter experts to review identified defects, provide clarifications, validate fixes, discuss solutions, and continuously improve AI accuracy and reliability.
  • Support human-in-the-loop review requirements for high-risk client, financial, regulatory, and operational workflows.

About the Company

Xpansiv

Global ESG commodity marketplace and data

Xpansiv runs a global marketplace for ESG-inclusive commodities, enabling participants to buy and sell energy, carbon offsets, water, and other differentiated materials. It operates leading ESG spot markets (such as CBL, H2OX, ACE, and OTX) and provides a single interface to access multiple registries, streamlining ESG portfolio management. The platform turns ESG spot price data into high-quality reference products and handles transactions and market data services, generating revenue from transaction fees and data services. Customers include energy producers, industrials, and financial institutions seeking to price and manage ESG risk and portfolios. Compared with others, Xpansiv combines an ESG-focused marketplace with integrated data and registry access in one place, improving transparency and efficiency. Its goal is to support the transition to a net-zero future by enabling accurate pricing, trading, and management of ESG factors in global markets.

Company size
201-500
Company stage
Growth Equity (Non-Venture Capital)
Total funding
$853.7M
Headquarters
San Francisco, CA
Founded
2016

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