Software Engineer II – Storage

AI-First Engineering at Mimecast

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. We're looking for leaders who don't just use AI tools but champion their adoption and establish new ways of working.

Our AI leadership extends beyond how we build to what we build. Our Mihra AI agent delivers 7x faster threat response for customers, and we're recognized as "Agents of Change" in Human Risk Management. Engineers here work at the intersection of cutting-edge AI tooling and AI-powered security products that protect organizations worldwide.

We build, we store, we scale!

Our customers rely on us to keep their data safe and secure which requires a massively distributed storage system that is resilient, scalable and highly performant. We combine both proprietary and existing storage technologies in both private and public cloud, to ensure we can serve and preserve petabytes of data in a fast, durable and cost-effective way.

Why Join Our Team?

“It’s an exciting time to join us as we embark on a journey to modernise how we manage petabytes of customer data in a hybrid cloud world” – Hiring Manager

What You’ll Do

As a Software Engineer II in the Storage team, you will play a pivotal role in designing, developing, and maintaining scalable storage systems. Your responsibilities will include:

• Lead the architectural design and evolution of distributed storage systems, making strategic decisions that impact multiple teams and product areas.
• Drive delivery of complex, high-impact initiatives that span multiple services or domains, balancing long-term maintainability, security, and performance.
• Establish and champion technical standards and best practices across teams, influencing technical roadmaps and engineering culture.
• Design and deliver AI-augmented systems, setting standards for prompt engineering, model selection, and evaluation frameworks within the team.
• Represent engineering perspectives in cross-functional planning, collaborating with product, security, and operations to align on technical strategy.

• Own critical subsystems or architectural areas with high autonomy, ensuring scalability, reliability, and security.
• Lead incident analysis and preventive actions for platform-wide issues, setting standards for operational readiness and incident response.
• Work with both baremetal, Cloud-native (AWS) and hybrid services

What You’ll Bring:

• Proven track record of leading large-scale, high-impact engineering initiatives and influencing technical direction beyond a single team.
• Expert-level knowledge of distributed systems, system design trade-offs, performance engineering, and reliability design for data processing and storage at scale on AWS (EFS, S3, EKS) or baremetal deployments
• Strong understanding of data storage aspects and technologies such as java and file IO, NFS, EFS, S3, ceph
• Deep understanding of secure SDLC, compliance, and advanced incident analysis.
• Experience mentoring other engineers and leading cross-functional technical initiatives.
• Demonstrated ability to design and deliver AI-augmented systems, including prompt engineering, model selection, and evaluation frameworks.
• Strong communication and stakeholder management skills, with experience representing engineering in cross-functional forums.
• High autonomy and ownership of critical subsystems or architectural areas.
• Demonstratable expertise with Java (jdk11, jdk21) development, Junit, Mockito

What We Bring

Join our Storage team to accelerate your career journey, working with a large-scale distributed platform that underpins many of Mimecasts products. 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! We provide a Macbook for our engineers and accompanying peripherals, and access to advanced AI tooling and resources to drive innovation at scale.

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!

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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.