Software Development Engineer in Test (SDET)

Job Title: Software Development Engineer in Test (SDET)

Location: Full-time onsite in Georgetown, TX 78628 (no remote work)
Salary: $120,000-$140,000 per year (depending on verifiable experience and skill set)

U.S. Work Authorization: Only U.S. Citizens or Green Card (Permanent Resident) holders will be considered. No visa sponsorship (including STEM OPT, H-1B, or any other work visa) is available or will be provided. W-2 arrangement only.

About SMART tagTM
We build the leading pupil transportation tracking platform that protects over 1 million K-12 students every day. Our RFID-based system provides real-time bus tracking, parent notifications, routing, dismissal management, and student safety tools to school districts across the country. As a privately owned, bootstrapped SaaS company, we are currently building a lean, high-performing engineering team that delivers exceptional reliability and customer outcomes.

About the Role
We are seeking a Software Development Engineer in Test (SDET) to build, maintain, and scale automated testing frameworks and tools that ensure the reliability, quality, and performance of our mission-critical platform. This role is key to delivering excellence in a product that protects children on school buses every day.

Key Responsibilities

• Design, develop, and maintain robust automated test frameworks (UI, API, integration, performance, and regression)
• Build tools and infrastructure to increase test coverage, efficiency, and reliability
• Collaborate closely with development teams to shift quality left and prevent defects
• Identify, report, and help resolve complex product issues
• Create and maintain test data, environments, and CI/CD testing pipelines
• Perform manual exploratory testing when needed
• Contribute to overall product quality strategy and continuous improvement
• Document test processes and results clearly

Requirements

• 4+ years of experience as an SDET, Test Automation Engineer, or Software Engineer with strong testing focus
• Strong proficiency in at least one modern programming language (Python, Java, JavaScript/TypeScript preferred)
• Hands-on experience building and maintaining automated test frameworks (Selenium, Playwright, Cypress, RestAssured, etc.)
• Solid understanding of API testing, databases, and CI/CD pipelines
• Strong problem-solving, analytical, and debugging skills
• Excellent communication and collaboration skills
• Must pass a background check
• Must live in or be willing to relocate to the Georgetown, TX area

Benefits

• Medical, Dental, Vision, Life, and Disability coverage after 30 days
• Eligible for company-sponsored 401(k) plan after 6 months
• 6-month probationary period

Work Schedule
Full-time onsite, Monday–Friday, 8:00 am – 5:00 pm CST (40 hours per week).

Secured Mobility, LLC is an at-will employer.