Senior Software Engineer, Infrastructure Security

Requirements

• You care deeply about building software for the long term
• You have strong hands-on experience with Linux operating systems and computer networking
• You're comfortable and experienced writing code in a programming language such as Python, Ruby, Go, etc.
• You have deep experience with cloud infrastructure, operating in a high-scale environment
• You have strong hands-on experience building and operating highly available systems
• You’ve led the delivery of significant projects or features independently
• You have deep expertise in one or more areas of modern web engineering
• You regularly use AI-powered tools in your development workflow
• You take ownership of operational excellence for the systems you build
• You enjoy working in small, autonomous, agile teams

What you'll be doing

• Ship foundational security services to enable Klaviyo engineering to move faster with confidence
• Design and develop systems and processes that enable highly available & scalable systems
• Design, build, and deliver software to improve the availability, scalability, latency, and efficiency of Klaviyo’s services
• Achieve breakthroughs in systems throughput by identifying and eliminating bottlenecks
• Leverage technology such as Python, Golang, AWS, Django, Kubernetes, Bash, Terraform, MySQL, Redis, Clickhouse, Iceberg, DataLake, etc.
• Champion best practices and collaborate with other teams on technical design review
• Mentor and pair with other Klaviyo engineers to build better software
• Prototype and advocate for architectural improvements
• Work hand-in-hand with product-facing engineers to ship impactful code
• Participate in on-call duties and solve issues to prevent recurrences
• Produce and advocate for preventative, upstream solutions with stakeholders
• Make informed, data-driven choices in a fast-paced environment

Nice to Have

• Experience building security tooling and working with security infrastructure systems
• Hands-on experience diagnosing and improving systems performance

Perks & Benefits

• Location in Dublin, Ireland with a hybrid working model
• Support for work authorization and relocation
• Salary range: €92,000 - €138,000 EUR
• Inclusive teams and commitment to building inclusive culture
• Opportunities for growth and learning