Senior Software Engineer, Testing Infrastructure

Senior Software Engineer, Testing Infrastructure

Join Mattermost as a Senior Software Engineer, Testing Infrastructure. Mattermost builds the #1 collaborative workflow solution for defense, intelligence, security, and critical infrastructure organizations.

Trusted by governments, financial institutions, and technology companies, our platform enables secure, efficient operations for the world’s most critical teams. We empower organizations to operate with confidence, reduce risks, and accelerate productivity. Guided by our core values of Customer Obsession, Earn Trust, Self Awareness, Ownership and High Impact, we collaborate closely with customers to deliver solutions that meet complex needs and drive success.

In this highly visible role you will serve as the technical lead for software testing and quality, partnering directly with Mattermost’s founders, CEO and engineering leadership to define and execute the next evolution of our testing strategy and infrastructure.

As a Senior Software Engineer in Testing Infrastructure you will define the technical direction for test infrastructure, frameworks, and processes, enabling every engineer to deliver high‑quality, reliable software with speed and confidence. Rather than focusing on implementing automated tests for individual features, your work will influence how the entire organization approaches testing and quality—establishing standards, designing scalable systems, and fostering a culture where quality is owned by all.

We will collaborate with engineering leadership to ensure testing systems are deeply integrated, observable, and intelligent, leveraging AI‑driven technologies to accelerate test coverage, analytics, and decision‑making. Your impact will extend beyond infrastructure—this is a strategic, cross‑functional leadership role that ensures our products meet the highest standards of reliability and security demanded by mission‑critical industries such as defense, intelligence, and critical infrastructure.

Note for non‑US applicants: If you are located in Canada, UK, Germany, or Spain, please apply directly to the posting for your specific location. This ensures your application is routed to the correct hiring team.

• Lead a company‑wide transformation of test automation and quality engineering strategy, working directly with Mattermost’s founders and engineering leadership.
• Define and own the vision and roadmap for Mattermost’s testing and quality engineering infrastructure.
• Architect scalable, intelligent testing frameworks that integrate seamlessly into our CI/CD pipelines and distributed engineering workflows.
• Establish and enforce testing standards, best practices, and quality metrics that guide engineers across teams.
• Influence and mentor engineers to adopt shift‑left testing, testability‑focused design, and quality‑first development practices.
• Partner with engineering leadership to align testing strategies with product and platform roadmaps.
• Design systems, tooling, and processes that empower developers to easily create, run, and maintain high‑quality automated tests.
• Lead the integration of AI/LLM technologies into testing strategy—such as intelligent test generation, analysis, and reporting.
• Build visibility and trust in quality signals through advanced reporting and observability into product reliability and test effectiveness.
• Drive continuous improvement by researching, evaluating, and championing emerging testing methodologies and technologies.
• Foster a culture of technical excellence in testing architecture, ensuring quality is a shared responsibility across all engineering teams.

• BS in Computer Science, Software Engineering, or related field with 7+ years of experience in software testing, quality engineering, or test infrastructure development.
• Proven experience defining and executing quality engineering strategy or leading test infrastructure initiatives for complex, full‑stack systems.
• Strong programming background in Type Script, React, React Native, Go, and Postgre
  
  SQL.
• Deep understanding of CI/CD pipelines, distributed systems, and cloud‑based test environments.
• Experience designing or architecting testing…