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Software Development Engineer in Test

About the Job

Help us build the next generation of Mimecast products!

Be on the cutting edge as we continue building the next generation of Mimecast’s Human Risk Management solution! We use our AI and ML platform to help our customers identify and address non-compliance, data loss and security issues across their communication and collaboration tools, and to respond to incidents quickly.

We are looking for a Software Developer in Test (SDET) with skills and aptitudes for test automation and quality engineering to join our dynamic and collaborative software engineering team!

Why Join Our Team?

“This is a highly effective software engineering team developing products and features that are essential to our company strategy and have high priority. The products are interesting, the technology is modern, and the team is engaged and collaborative. It is a great environment to learn new skills and share the ones you already have.” – Hiring Manager

What You’ll Do

As an SDET at the Software Engineer I level in the Governance, Compliance and Insights team, you will design, develop and operate software tests for our industry leading solution for Human Risk Management. Your responsibilities will include:

  • Help plan, refine and estimate epics and stories as part of an Agile Scrum team.

  • Create test strategies and plans to thoroughly test new features.

  • Refine acceptance criteria into testable units and convert those to efficient and reliable automated tests.

  • Integrate automated tests with CI/CD pipelines and sustain successful automation as part of our regular build process.

  • Perform manual testing on occasions when automated tests are not practical.

  • Detect, reproduce, and help resolve defects, emphasizing troubleshooting, root cause analysis, and preventing similar issues in the future.

  • Collaborate with cross-functional teams including Product Managers, Architects, and Engineers in the US and UK.

  • Participate in and help drive Agile development processes.

  • Push for continuous improvement in everything we do.

  • Freely debate options and ideas, then rally behind decisions.

  • Take initiative and apply innovations in technology and process to our products and work.

  • Use and embrace AI tools to help in Quality Engineering activities.

  • Participate in on-call rotation with your colleagues.

What You’ll Bring

  • Skills and aptitudes for Quality Engineering, especially automated testing.

  • Understanding of how to plan tests and break down stories into testable units.

  • Familiarity with full-stack automated testing, verifying front- and back-end interfaces including RESTful and gRPC API endpoints, and web-based user interfaces.

  • Object-oriented programming skills and experience automating in Java, JavaScript, Typescript or similar.

  • Familiarity with building and scaling tests using frameworks like JUnit/TestNg and Selenium/Cypress/Playwright.

  • Familiarity with databases and including database-side verification in automated tests.

  • Familiarity with performance and scalability testing.

  • Familiarity with effective use of AI tools for development, testing, or documentation

  • Experience testing applications that use PostgreSQL, including writing queries and verifying data integrity.

  • Familiarity with docker containers, Kubernetes and Helm

  • Experience with CI/CD build pipelines, especially using GitLab and Jenkins.

  • Familiarity with AWS or similar public cloud offerings, and using their SDK to interact with Cloud Services for testing.

  • Familiarity with monitoring and observability tools like Grafana for testing and support.

  • Ability to troubleshoot and support customers, including understanding product features, providing technical guidance, and investigating issues.

  • Strong communication skills and a collaborative mindset.

  • Bias for action and problem solving – eagerness to take initiative and make things happen.

  • Nice to have - familiarity with digital communications tools like Zoom, Slack, and MS Teams: Not just how to use them, but how they work and integrate

What We Bring

Join our GCI team to accelerate your career journey, working with cutting-edge technologies and contributing to projects that have real customer impact. You will be immersed in a dynamic environment that recognizes and celebrates your achievements.

Mimecast is on a path of steady and healthy growth as a company, investing in people like you who bring the skills and experience to raise our technical expertise, operational maturity, and customer success to the next level. Your contributions are important! Every voice and action matters.

Mimecast offers formal and on-the-job learning opportunities, maintains a comprehensive benefits package that helps our employees and their family members sustain a healthy lifestyle, and importantly – working in cross functional teams to build your knowledge!

We believe in “growth that’s good”, we have a “culture that cares” and we are on a “mission that matters”.

Our Hybrid Model: We provide you with the flexibility to live balanced, healthy lives through our hybrid working model that champions both collaborative teamwork and individual flexibility. Employees are expected to come to the office at least two days per week, because working together in person:

  • Fosters a culture of collaboration, communication, performance and learning

  • Drives innovation and creativity within and between teams

  • Introduces employees to priorities outside of their immediate realm

  • Ensures important interpersonal relationships and connections with one another and our community!

The base salary range for this position is $96,000 - 144,000 base + benefits. This reflects the minimum and maximum target for new hire salaries for this position. This position may also be eligible for incentive plans and other related benefits. Our salary ranges are determined by role, level, and location. These factors and individual capabilities will also determine the individual pay offered.

Belonging at Mimecast

Cybersecurity is a community effort. That’s why we’re committed to building an inclusive, diverse community that celebrates and welcomes everyone – unless they’re a cybercriminal, of course.

We’re proud to be an Equal Opportunity and Affirmative Action Employer, and we’d encourage you to join us whatever your background. We particularly welcome applicants from traditionally underrepresented groups.

We consider everyone equally: your race, age, religion, sexual orientation, gender identity, ability, marital status, nationality, or any other protected characteristic won’t affect your application.

If you require any adjustments or accommodations due to a disability, or any other reason that may help you in your interview process, please let us know by emailing careers@mimecast.com.

Due to certain obligations to our customers, an offer of employment will be subject to your successful completion of applicable background checks, conducted in accordance with local law.

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CEO of Mimecast
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Marc van Zadelhoff
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Average salary estimate

$120000 / YEARLY (est.)
min
max
$96000K
$144000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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Mimecast is an AI-powered, API-enabled connected Human Risk Management platfrom founded in 2003. We are committed to helping protect large and small organizations from malicious activity, human error and technology failure.

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CULTURE VALUES
Customer-Centric
Mission Driven
Rise from Within
Work/Life Harmony
BENEFITS & PERKS
Maternity Leave
Paternity Leave
Medical Insurance
Dental Insurance
Vision Insurance
Mental Health Resources
Life insurance
Disability Insurance
Health Savings Account (HSA)
Flexible Spending Account (FSA)
Paid Time-Off
Sabbatical
FUNDING
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
EMPLOYMENT TYPE
Full-time, hybrid
DATE POSTED
September 30, 2025
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