Join a fast-moving, AI-powered team that values collaboration, speed, and stability.

At Mighty Networks, we’re on a mission to create software to gather and connect real people in the age of AI. We call it ‘people magic.’ Think of it as Shopify Meets AI, but rather than ecommerce, our customers (who we call Hosts) are building community businesses that ultimately run themselves.

As a result of people magic, more $1M communities have been built on Mighty in the past year than on any other platform. Some of our Mighty Hosts include Tony Robbins, Dr. Mark Hyman, The Home Edit, Mel Robbins, Marie Forleo, Matthew Hussey, Jefferson Fisher, Luvvie Ajayi Jones, The Luckiest Club, and The Budgetnista.

This summer, we’re launching our next generation of people magic. Ahead of it, we’re hiring numerous critical roles across Engineering.

The Role

We are looking for a Senior Software Development Engineer in Test (SDET) to join our dynamic engineering team. You will be working alongside our full-stack engineers to build and maintain a robust testing infrastructure for our web platform, which currently runs 27K+ tests across 300+ machines in minutes. Your role will focus on improving test stability, speed, and consistency across the entire stack, with a particular emphasis on optimizing automated testing workflows.

You’ll collaborate closely with our Full Stack Engineers to ensure seamless, high-quality code that powers millions of members and thousands of communities. In this role, you’ll leverage cutting-edge AI tools to apply mass changes to the test-codebase that enhance productivity and streamline testing processes.

What You’ll Do

• Design, develop, and maintain our testing infrastructure to ensure consistent, high-quality results across the platform
• Evolve the test‑suite itself – introduce new patterns and best practices, focusing on system‑level improvements, not writing feature tests for other teams.
• Collaborate with the CTO to define testing patterns, direction and improvements
• Build in fast-paced iterations to optimize test stability, speed, and scalability
• Leverage AI-driven tools to create intelligent testing solutions and improve test coverage and performance
• Mentor and guide Full Stack developers to elevate the testing standards across the team
• Troubleshoot complex test failures, debug issues, and implement solutions quickly
• Drive the adoption of new testing technologies and methodologies that increase efficiency and accuracy
• Ensure that all tests align with the quality and performance standards of our platform, by automating safeguards, not manual efforts.

What We’re Looking For

• 5+ years of experience in SDET or Test Engineering
• Proven ability to work with full-stack engineering teams on large-scale web applications
• Expertise in test automation frameworks, ideally for web-based platforms, with experience in tools such as Selenium, Cypress, or similar
• Strong experience with both backend and frontend systems, with knowledge of Ruby on Rails, React, and modern JavaScript frameworks
• Strong understanding of software patterns and practices, such as Page Object Models, inheritance, encapsulation, etc.
• Strong understanding of SQL/NoSQL databases and experience with Elasticsearch
• Experience with AI-driven test automation tools or a willingness to learn and experiment with them
• Excellent communication skills and a team-oriented mindset
• Bonus: experience writing and troubleshooting GHA (GitHub Actions)
  
  

Who You Are

• You thrive in a collaborative environment and are excited to mentor and learn from others
• You’re passionate about improving software quality and testing processes with a focus on speed and scalability
• You love working in an experimental, fast-paced environment and adapting to changes quickly
• You believe that AI tools can unlock new levels of productivity and are eager to apply them in innovative ways to improve test infrastructure
• You are detail-oriented, proactive, and focused on delivering results with consistency and quality

Compensation: The base salary for this role ranges from $100,000–$180,000 USD, with exact compensation based on location, experience, and cost of living.