Principal Software Engineer

India - Bengaluru💼 Full-time🗓 2026-08-19 → 2026-09-26

Core

Architect and develop scalable, secure, high-performance backend systems and microservices for cloud-based email security products (DMARC, SPF, DKIM) using Java and AWS.

Role type

Principal Software Engineer (Backend/Cloud Infrastructure)

Builds

Cloud-native email security services and authentication protocols for enterprise customers

Domain

Cybersecurity / Email Security / Cloud Infrastructure

Deliverable

production ML models | product features | infrastructure

Required skills

Java, Microservices architecture, AWS cloud services, CI/CD pipelines, Infrastructure as Code (Terraform), Database design, Technical leadership, Mentoring

Preferred skills

AI tooling expertise (Cursor, Claude), SMTP/DNS/Email Security protocols, Containerization (Docker/Kubernetes), Secure coding practices

Technologies

Java, Spring Boot, Micronaut, AWS (Lambda, S3, RDS, DynamoDB, ECS, EC2), Jenkins, Terraform, Docker, Kubernetes, Gradle

Responsibilities

Architect scalable backend systems, optimize cloud infrastructure, implement CI/CD pipelines, mentor junior engineers, design microservices, manage databases, create technical documentation

Seniority

Principal, hands-on IC with strategic leadership

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About Mimecast

Relentless protection. Resilient world. Mimecast was born in 2003 with a focus on delivering relentless protection. Each day, we take on cyber disruption for our tens of thousands of customers around the globe; always putting them first, and never giving up on tackling their biggest security challenges together. We continuously invest to thoughtfully integrate brand protection, security awareness training, web security, compliance, and other essential capabilities. Mimecast is here to help protect large and small organizations from malicious activity, human error, and technology failure — and