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Mimecast Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

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Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

In an A/B test, how can you check if assignment to the various buckets was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

Random Bucketing

A/B Testing & Experimentation

Mimecast Salaries by Position

What You’ll Do? As our Senior Data Architect, you will be the strategic owner of our data architecture and data governance practices. You will set the vision for how data is collected, managed, governed, and leveraged across the organization. This is a high-impact role where you will collaborate closely with product managers, engineering leadership, and fellow architects to drive data-driven decision-making and innovation. You will be at the intersection of multiple product lines, delivering both greater customer value through accurate shared data and product insights to set better product roadmaps. Responsibilities <ul><li>Develop and communicate a clear, actionable data strategy aligned with business objectives and cybersecurity requirements.</li><li>Design, implement, and maintain scalable, secure, and robust data architecture frameworks to support our SaaS products and analytics needs.</li><li>Establish and champion data governance practices—including data quality, lineage, privacy, and compliance—ensuring data is a trusted asset across the organization.</li><li>Mentor and coach cross-functional teams to take ownership of their data, fostering a culture of data literacy and accountability.</li><li>Partner with product managers, data science, and engineering teams to define data roadmaps, prioritize initiatives, and deliver on key business outcomes.</li><li>Collaborate with data platform teams to evaluate and implement modern data technologies, tools, and platforms that align with our security, privacy, and scalability needs.</li><li>Serve as a trusted advisor to product and engineering leadership on all matters related to data. </li></ul>Experience <ul><li>Proven experience as a Data Architect or in similar leadership roles within a SaaS or cybersecurity environment.</li><li>Deep expertise in designing and implementing enterprise data architectures, including data modeling, storage, integration, and analytics.</li><li>Strong knowledge of data governance frameworks, data privacy, and compliance (e.g., GDPR, SOC 2).</li><li>Hands-on experience with modern data platforms (both cloud and on-premises), data lakes, and data warehousing solutions.</li><li>Excellent communication and stakeholder management skills; able to translate complex data concepts for both technical and non-technical audiences.</li><li>Proficient in AWS services.</li><li>A great team player with demonstrable experience delivering superior software products via Agile methodologies</li><li>Continuous learning mindset, keeping abreast of related industry technologies, tools, and standards. </li></ul>What We Bring Join our architecture team to accelerate your career while working with cutting-edge technologies and contributing to impactful projects for our customers. You will be immersed in a dynamic environment that recognizes and celebrates your achievements. Mimecast offers formal and, on the job, learning opportunities, maintains a comprehensive benefits package that helps our employees and their family members to sustain a healthy lifestyle, and importantly - working in cross functional teams to build your knowledge! 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: <ul><li>Fosters a culture of collaboration, communication, performance and learning</li><li>Drives innovation and creativity within and between teams</li><li>Introduces employees to priorities outside of their immediate realm </li></ul>Ensures important interpersonal relationships and connections with one another and our community The base salary range for this position is £120,000 to £180,000 plus benefits. This range represents the minimum and maximum new hire compensation for this role. The position may also be eligible for incentive plans and additional benefits, in accordance with company policy and local regulations. Our salary ranges are determined by role, level, and location with individual compensation also dependent on factors such as qualifications, experience, and skills. Final offers will reflect these considerations and may vary accordingly. 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. 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. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment.

Engineering Manager – Threat Protection (AntiSpam) The driving force behind the scanning platform at Mimecast Dive into the forefront of innovation with our Gateway Security team, where we scan massive volumes of email traffic for our customers! Our pioneering Email Platform pushes on the boundaries of what’s possible, leveraging the latest technologies and tooling in AWS Why Join Our Team? “The Gateway Security team, within the Threat Protection group, is responsible for developing the cutting edge scanning technology at the heart of Mimecast’s protection stack, scanning over 2 billion emails, files, and URLs daily. If you’re interested in solving customer challenges at immense scale, then this is the role for you!” What You’ll Do As an Engineering Manager for the Gateway Security team, you will be instrumental in forming and scaling high-performing teams, offering dedicated support for individual growth and career progression. Your responsibilities will include: <ul><li>Collaborate with cross-functional teams distributed globally, including Product Managers, Project Managers, Architects, and Engineers, to define project milestones and deliverables.</li><li>Engage closely with the HR and Recruitment teams to attract, onboard, scale, and retain exceptional engineering talent.</li><li>Have experience managing teams working at scale with on prem and/or cloud technologies</li><li>Identify and mitigate technical risks associated with projects, ensuring smooth and reliable operation.</li><li>Foster a collaborative and innovative team culture, ensuring effective communication and knowledge sharing.</li><li>Drive continuous improvement initiatives, leveraging standards and best practices, to maintain high-quality software development.</li><li>Monitor and analyze AWS usage, working with senior management and engineer teams to provide recommendations for cost savings. </li></ul>What You’ll Bring <ul><li>Strong communication skills with experience in effectively communicating technical concepts to both technical and non-technical stakeholders.</li><li>Successful track record of project leadership, including planning, execution, and delivery of complex projects with predictability.</li><li>Strong technical background in software engineering, with hands-on experience in designing and developing backend services at scale within AWS.</li><li>Experience in building and scaling high-performing engineering teams, including recruitment, onboarding, and ongoing talent development.</li><li>Experience in establishing and enforcing coding standards, best practices, and quality assurance processes to maintain high-quality software development.</li><li>Experience managing hybrid cloud environments is advantegeous </li></ul>What We Bring Join our Threat Protection group 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 offers formal and on the job learning opportunities, maintains a comprehensive benefits package that helps our employees and their family members to sustain a healthy lifestyle, and importantly - working in cross functional teams to build your knowledge! 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: <ul><li>Fosters a culture of collaboration, communication, performance and learning</li><li>Drives innovation and creativity within and between teams</li><li>Introduces employees to priorities outside of their immediate realm</li><li>Ensures important interpersonal relationships and connections with one another and our community! </li></ul>The base salary range for this position is £76,000−£114,000 plus benefits. This range represents the minimum and maximum new hire compensation for this role. The position may also be eligible for incentive plans and additional benefits, in accordance with company policy and local regulations. Our salary ranges are determined by role, level, and location with individual compensation also dependent on factors such as qualifications, experience, and skills. Final offers will reflect these considerations and may vary accordingly. 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. 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. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment.

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Random Bucketing	A/B Testing & Experimentation	Medium	Very High

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