Senior Software Engineer

Why Join Us

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 protection. Here, your ideas matter, your code shapes the future, and your work directly improves how global businesses safeguard their most valuable assets.

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.

What You'll Do

• Architect & Build: Design, develop, and maintain modern Java-based services with Angular or React front ends, powering mission-critical enterprise solutions.
• Modernize & Innovate: Lead the transformation of legacy systems—improving reliability, scalability, and observability using the latest cloud-native technologies.
• Own the Cloud: Build and operate Java services (Java 11+), leveraging Docker, Kubernetes/EKS, and AWS to deliver high-availability, high-throughput platforms.
• Collaborate & Lead: Work closely with product, UX, and engineering teams in Agile sprints, shaping platform capabilities and mentoring peers.
• Champion Resilience: Participate in on-call rotations and incident response, driving proactive improvements for platform uptime and reliability.
• Code with Excellence: Write clean, efficient, and maintainable code, and set the standard through thoughtful code reviews and technical leadership.
• Drive Performance: Continuously optimize for speed and scale, refactoring and innovating as you go.
• Document & Share: Ensure clarity and knowledge sharing by documenting architectures, processes, and best practices.
  
  

What You'll Bring

• Deep Java Expertise: Proven experience with Java 11+ and building scalable, distributed backend systems.
• Frontend Acumen: Skilled in building robust, maintainable UIs with Angular or React.
• Cloud & DevOps Savvy: Hands-on experience with AWS (IAM, S3, DynamoDB, VPC, ECS/EKS, SQS), Docker, Kubernetes, and CI/CD pipelines (Jenkins, Git, Terraform/CloudFormation).
• Production Experience: Comfortable maintaining large distributed systems in live environments.
• Knowledge in CI/CD pipelines using tools like Jenkins, ensuring efficient delivery of high-quality software.
• Strong Database experience, including experience with relational and NoSQL databases.
• Team Player: Collaborative, communicative, and passionate about mentoring and learning.
• Bonus Points: Experience leveraging AI tools to boost developer productivity.
  
  

What We're Looking For

• Impact: Your work will directly influence the security and success of global enterprises.
• Growth: Opportunities for technical leadership, mentorship, and continuous learning.
• Modern Stack: Work with the latest cloud-native and DevOps technologies.
• Supportive Culture: Join a team that values innovation, autonomy, and personal growth.
  
  

Qualifications

• Bachelor's degree in Computer Science or related field (or equivalent experience).
  
  

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 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:

• 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!
  
  

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.