Senior Software Development Engineer Test (SDET)

At Securonix, we’re on a mission to secure the world by staying ahead of cyber threats and reinforcing all layers of our platform with AI capabilities. Our Securonix Unified Defense SIEM provides organizations with the first and only AI-reinforced solution built with a cybersecurity mesh architecture on a highly scalable data cloud. Enhanced by Securonix EON’s AI capabilities, our innovative cloud-native solution delivers a seamless CyberOps experience, empowering organizations to scale their security operations and keep pace with evolving threats.

Recognized as a five-time Leader in the Gartner Magic Quadrant for SIEM and highly rated on Gartner Peer Insights , our award-winning Unified Defense SIEM provides organizations with 365 days of “hot” data for rapid search and investigation, threat content-as-a-service, proactive defense through continuous peer and partner collaboration, and a fully integrated Threat Detection, Investigation, and Response (TDIR) experience—all within a single platform. Built on a cloud-native architecture, the platform leverages the Snowflake Data Cloud for unparalleled scalability and performance.

Securonix is proud to be a cybersecurity unicorn and to be featured in CRN’s 2024 Security 100 list . Backed by Vista Equity Partners , one of the largest private equity firms, with over $100 billion in assets under management, we have a unique advantage in driving innovation and growth. With a global footprint, we serve more than 1,000 customers worldwide , including 10% of the Fortune 100 . Our network of 150+ partners and Managed Security Service Providers (MSSPs) enables us to deliver unmatched security solutions on a global scale.

At Securonix, we are driven by our core values and place our people at the heart of everything we do:

• Winning as One Team: We work together with universal respect to achieve aligned outcomes.
• Customer-Driven Innovation: We innovate to stay ahead of the market and create value for our customers.
• Agility in Action: We embrace change and remain unified in our purpose and objectives.

We are looking for a Senior Software Development Engineer in Test (SDET) to drive quality engineering and automation across Securonix products, including SIEM, ThreatQ (Threat Intelligence Platform/TIP) , and associated cloud, microservices, data, and security capabilities.

Role Overview:

As a Senior SDET, you will design and build scalable automation solutions across API, UI, backend, integration, and end-to-end workflows. The ideal candidate will have strong programming skills in Python , hands-on experience with Pytest and Playwright , and a solid understanding of API and microservices testing. You will work closely with Engineering, Product, DevOps, and QA teams to embed quality throughout the software development lifecycle.

Key Responsibilities:

• Design, develop, and maintain scalable automation frameworks using Python and Pytest .
• Build and maintain modern UI and end-to-end automation using Playwright .
• Develop automated test suites for API, UI, backend, integration, regression, and end-to-end testing.
• Drive an API-first automation strategy for microservices and platform capabilities.
• Validate REST APIs, service-to-service integrations, authentication, data contracts, error handling, and distributed workflows.
• Validate data-processing pipelines and data integrity using Python, SQL, and API-based validation.
• Test complex workflows across Securonix products, including SIEM and ThreatQ/TIP .
• Develop reusable automation libraries, utilities, fixtures, test-data management, and reporting capabilities.
• Integrate automated tests into CI/CD pipelines and enable continuous testing.
• Analyze automation failures, application logs, API responses, and backend data to perform root-cause analysis.
• Participate in design and architecture discussions to improve testability, observability, reliability, and product quality.
• Identify regression risks and ensure appropriate automated coverage for new features and production defect fixes.
• Mentor QA/SDET engineers on automation design, coding standards, debugging, and testing best practices.
• Explore AI-assisted testing and automation to improve test coverage, productivity, and defect detection.

Required Technical Skills:

• 5–8 years of experience in Quality Engineering, Test Automa…