Quality Assurance Engineer III

Komatsu Mining Corp.; Mesa (AZ); On-site; USD 120,000 - 150,000; Full time

Job summary

Komatsu Mining Technology Solutions in the United States is seeking a Senior Software Quality Assurance Engineer for the Autonomous Haulage System (AHS). You will own end-to-end quality strategy across functional, performance, security, and failover testing in a distributed, real-time environment.

Based in Tucson or Phoenix, Arizona, you will mentor engineers, drive test automation, and partner with product and hardware teams to deliver robust automation within CI/CD and containerized test

Qualifications

• Bachelor’s degree in computer science, Software/Systems Engineering, or related discipline (Master’s a plus).
• 6+ years combined experience in software/systems testing, with 4+ years focused on building and scaling test automation.
• Proficient in at least one modern programming language used for automation (Java, Python, or C#); strong REST/gRPC API and UI automation experience.
• Hands‑on expertise with CI/CD, containerization, and infrastructure-as-code for on‑demand test environments.

Responsibilities

• Maintain deep understanding of AHS architecture, dependencies, and safety constraints; translate this knowledge into risk-based test plans and automated coverage.
• Partner with product and engineering teams to extract, refine, and document functional+nonfunctional requirements; ensure each requirement has measurable acceptance criteria and automated validation.
• Own the end‑to‑end quality strategy—including functional, performance, security, and fail over testing—leveraging service virtualization, contract testing, and containerized environments to maximize parallel execution in CI/CD.
• Design, implement, and continuously enhance robust automation frameworks. Integrate tests seamlessly into CI/CD pipelines with infrastructure as code provisioning.
• Drive a shift left culture: embed test hooks at design time, manage test data versioning, and maintain high signal regression suites that execute on every merge.
• Lead execution of manual edge case and exploratory tests; automate everything else. Publish clear dashboards for pass/fail trends, defect escape rate, and MTTR; use metrics to guide continuous improvement.
• Facilitate blameless postmortems, identify systemic issues, and convert findings into preventative automated checks.
• Oversee compatibility matrices and deployment configurations, support field teams during installation, configuration, and on‑site validation.
• Mentor engineers, champion coding standards for test development, and pilot new tools or methodologies that increase team productivity and product quality.

Skills

QA Automation

CI/CD

Programming: Java/Python/C#

REST/GRPC APIs

Leadership

Mentoring

Test strategy

Education

Bachelor's in CS/SE

Tools

Docker

Kubernetes

Job description

Shape the Future of Mining with Komatsu Mining Technology Solutions: At Komatsu Mining Technology Solutions, we're not just talking about progress and innovation - we're making it happen. Our cutting-edge Modular brand solutions are powering mines worldwide, driving efficiency and sustainability in ways thatseemed impossible just years ago.

Job Overview

The Autonomous Haulage System (AHS) is a comprehensive fleet management system for mines. Autonomous trucks are centrally controlled through a wireless network that integrates on-board vehicle controllers, high precision global positioning, and obstacle avoidance systems. The AHS Product Development team is responsible for building innovative solutions to unique and challenging autonomous operation problems. Working with our partners around the world, you will help design and support the next generation of mine optimization technologies and build the future platforms that will drive the changes in the mining industry for generations.

As a Senior Software Quality Assurance Engineer – Autonomous Haulage System (AHS), you will engage with experienced cross-disciplinary team members to conceive and design innovative automation products. You will work closely with product management, hardware engineering, and operations teams. You must be responsive, flexible, and able to succeed in an open and collaborative peer environment.

This position may be based in either Tucson or Phoenix, Arizona. Candidates residing in both locations are encouraged to apply.

Key Job Responsibilities

• Maintain deep understanding of AHS architecture, dependencies, and safety constraints; translate this knowledge into risk-based test plans and automated coverage.
• Partner with product and engineering teams to extract, refine, and document functional+nonfunctional requirements; ensure each requirement has measurable acceptance criteria and automated validation.
• Own the end‑to‑end quality strategy—including functional, performance, security, and fail over testing—leveraging service virtualization, contract testing, and containerized environments to maximize parallel execution in CI/CD.
• Design, implement, and continuously enhance robust automation frameworks. Integrate tests seamlessly into CI/CD pipelines with infrastructure as code provisioning.
• Drive a shift left culture: embed test hooks at design time, manage test data versioning, and maintain high signal regression suites that execute on every merge.
• Lead execution of manual edge case and exploratory tests; automate everything else. Publish clear dashboards for pass/fail trends, defect escape rate, and MTTR; use metrics to guide continuous improvement.
• Facilitate blameless postmortems, identify systemic issues, and convert findings into preventative automated checks.
• Oversee compatibility matrices and deployment configurations, support field teams during installation, configuration, and on‑site validation.
• Mentor engineers, champion coding standards for test development, and pilot new tools or methodologies that increase team productivity and product quality. Coordinate cross functional initiatives to mature quality practices enterprise wide.
• Be able to occasionally travel internationally.

Required Skills

• Bachelor’s degree in computer science, Software/Systems Engineering, or related discipline (Master’s a plus).
• 6 +years combined experience in software/systems testing, with 4+years focused on building and scaling test automation.
• Ability to take a project from scoping requirements to production operations
• Leadership defining comprehensive test strategies for complex, distributed or real‑time systems.
• Proficient in at least one modern programming language used for automation (Java, Python, or C#); strong REST/gRPC API and UI automation experience.
• Hands‑on expertise with CI/CD, containerization, and infrastructure‑as‑code for on‑demand test environments.
• Ability to mentor, influence, and up‑level QA and development teams.
• Excellent analytical, documentation, and cross‑functional communication skills.
• Ability to travel for up to 10% of the time

Desired Skills

• 5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
• Experience in event‑driven microservices and REST API’s
• Experience with network protocols, network programming, and distributed application debugging and analysis
• Excellence in technical communication with peers and non‑technical cohorts

Diversity & Inclusion Commitment

At Komatsu we come from diverse backgrounds, with unique perspectives, experiences, and contributions. We are committed to creating a workforce that is reflective of the communities we work and live in. We believe that our people are part of our shared purpose. We are authentic, ambitious, and innovative in our pursuit of Diversity & Inclusion. United, we are on a journey towards a sustainable future that creates value together.

Komatsu is a world leader in manufacturing construction, mining, forestry, and industrial heavy equipment. Founded in 1921, Komatsu has a long history of quality, reliability, innovation, and excellence. Headquartered in Tokyo, Japan, Komatsu facilities, distributors and dealers are in more than 140 countries and employ more than 60,000 people. Komatsu offers a diverse and challenging work environment, where you can grow your skills and career, and contribute to a sustainable, clean‑energy future. If you are looking for a company that values your talent and potential, be a part of something big and join a team that is shaping the world!

EEO Statement

Komatsu is an Equal Opportunity Workplace and an Aff…

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.