Principal Software Developer

OPENTEXT - THE INFORMATION COMPANY

OpenText is a global leader in information management, where innovation, creativity, and collaboration are the key components of our corporate culture. As a member of our team, you will have the opportunity to partner with the most highly regarded companies in the world, tackle complex issues, and contribute to projects that shape the future of digital transformation.

AI-First. Future-Driven. Human-Centered.

At OpenText, AI is at the heart of everything we do-powering innovation, transforming work, and empowering digital knowledge workers. Were hiring talent that AI cant replace to help us shape the future of information management. Join us.

The Opportunity

We are looking for an experienced Principal Software Developer to provide technical leadership for the Email Channel of our Messaging Channels Platform. In this role, you will define the technical architecture, lead the design and development of enterprise-scale messaging capabilities, and establish engineering best practices for a cloud-native communication platform.

You will work closely with Product Management, Architects, Development, Security, and Cloud Operations to deliver highly available, secure, and scalable messaging solutions capable of processing millions of email transactions every day.

You are great at

• Providing technical leadership and architectural direction for enterprise messaging solutions.
• Designing and developing highly scalable, resilient, and cloud-native email delivery platforms.
• Leading technical design discussions and driving engineering best practices across multiple teams.
• Building reliable SMTP-based messaging services with high availability, performance, and observability.
• Solving complex email delivery and infrastructure challenges, including deliverability, routing, security, and performance optimization.
• Driving architectural decisions, establishing engineering standards, and influencing the long-term technical roadmap.
• Mentoring senior developers and fostering technical excellence across the organization.
• Collaborating effectively with Product Management, Architects, Engineering, Security, DevOps, and Cloud Operations to deliver high-quality enterprise software.

What it takes

• 15+ years of software engineering experience with significant experience designing distributed enterprise applications.
• Deep expertise in enterprise email technologies, including SMTP, KumoMTA, Postfix, PowerMTA, Exim, or similar Message Transfer Agents (MTAs).
• Strong understanding of email protocols and standards, including SMTP, MIME, DSN, SPF, DKIM, DMARC, SMTP AUTH, STARTTLS/TLS, and DNS (MX, TXT, PTR).
• Experience designing and operating high-volume email delivery platforms, including message routing, queue management, retry mechanisms, bounce processing, suppression management, sender reputation, IP warming, throttling, and ISP-specific delivery optimization.
• Strong programming experience in Java, Python, or Rust (preferred) with expertise in concurrent programming, asynchronous processing, and network programming.
• Experience building cloud-native microservices using Docker, Kubernetes, REST APIs, and event-driven architectures leveraging Kafka, RabbitMQ, or similar messaging technologies.
• Experience with public cloud platforms including Microsoft Azure, Amazon Web Services (AWS), or Google Cloud Platform (GCP).
• Knowledge of enterprise messaging platforms, messaging middleware, and event streaming technologies.
• Experience designing and building multi-tenant SaaS platforms, with strong understanding of tenant isolation, scalability, security, and high availability.
• Strong knowledge of databases such as PostgreSQL, MySQL, MongoDB, and Redis.
• Experience with observability technologies including Prometheus, Grafana, OpenTelemetry, and ELK/OpenSearch.
• Experience with CI/CD pipelines, Git, Infrastructure as Code, and modern DevOps practices.
• Excellent debugging, performance tuning, and troubleshooting skills for distributed systems.
• Strong communication, technical leadership, mentoring, stakeholder management, and cross-functional collaboration skills.
• Bachelors or Masters degree in Computer Science or an equivalent discipline.

OpenTexts efforts to build an inclusive work environment go beyond simply complying with applicable laws. Our Employment Equity and Diversity Policy provides direction on maintaining a working environment that is inclusive of everyone, regardless of culture, national origin, race, color, gender, gender identification, sexual orientation, family status, age, veteran status, disability, religion, or other basis protected by applicable laws.

If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please contact us at [email removed] . Our proactive approach fosters collaboration, innovation, and personal growth, enriching OpenTexts vibrant workplace.