Software Development Engineer in Test II

Software Development Engineer in Test II   About Mimecast Mimecast is a global leader in cybersecurity, dedicated to protecting more than 42000 customers from the escalating landscape of digital threats. Mimecast has transitioned from traditional email security to unified Human Risk Management platform, designed to secure the modern collaborative workspace – spanning Email, Slack, Microsoft Teams and beyond.

By integrating advanced AI-powered detection with deep behavioural insights, Mimecast identifies and mitigates risks as the “human layer”, where technology and user behaviour intersect. Why Join Our Team? Are you passionate about building robust, scalable systems that make a real impact? At Governance, Compliance & Insights, you’ll join a collaborative team tackling the unique challenges of enterprise data back-up & recovery.

Here, your ideas matter, your code shapes the future, and your work directly improves how global businesses safeguard their most valuable assets. Mimecast is an AI-First engineering organization. Our teams actively leverage AI-powered development tools across all facets of engineering, from code development to testing, documentation, and operations. What You’ll Do As a full-stack SDET-2 with a specialization in backend systems, you will play a pivotal role within the GCI team, collaborating closely with Engineers to enhance the development and quality of our products.

Your contributions will directly influence the expansion of testing and automation across multiple facets of the business. In this role, you will: Design and Implement Automation Frameworks: Build and continuously improve scalable, reusable backend automation test frameworks to support multiple services. Own Backend and API Automation: Ensure comprehensive end-to-end automation coverage for backend systems, APIs, and service-level interactions, validating data flows and service integrations.

Extend UI Automation: Maintain and expand UI automation for customer-facing workflows to ensure seamless user experiences. Collaborate Across Teams: Actively participate in backlog grooming, sprint planning, design reviews, and code reviews to ensure quality is embedded throughout the development lifecycle. Investigate and Resolve Failures: Analyze complex failures across distributed systems, perform root cause analysis, and provide actionable recommendations for fixes.

Proactively Identify Risks: Challenge assumptions, identify systemic quality risks, and advocate for improvements to ensure robust and reliable systems. Own Test Strategy: Take full ownership of the squad’s test strategy, ensuring comprehensive coverage and driving continuous improvement initiatives. Performance and Load Testing: Define and execute performance and load tests to validate system behaviour under concurrent load and ensure scalability.

What You’ll Bring Extensive Experience: 5+ years of expertise in backend, frontend, and functional testing, with a proven track record of delivering high-quality results. Technical Proficiency: Strong command of Java and Maven, including experience with multi-module backend test automation frameworks. API and Service Testing: Hands-on experience with REST API testing, including contract validation, status codes, authentication flows, error handling, and ensuring cross-service data consistency.

Testing Frameworks: Strong in JUnit 5 and REST Assured for building robust API and integration test suites with lifecycle management and tagging. Performance Testing: Skilled in using K6 for performance and load testing to ensure system reliability under varying workloads. End-to-End Testing: Expertise in achieving comprehensive coverage across full user workflows, multiple services, and diverse environments.

Data-Driven Testing: Experience with JSON-driven, parameterized testing scenarios from external files to maximize coverage while minimizing code duplication. Cloud Expertise: Familiarity with AWS, including database validation,