Software Engineer II, Infrastructure Security at Klaviyo

✨ The Stack take on this Klaviyo job

• 🏢 Klaviyo has 19 jobs here, 11 with visa sponsorship see all
• 🛂 Visa: Critical Skills Employment Permit. Occupations on the Critical Skills list: €40,904 a year with a relevant degree guide
• 💡 No salary shown. Ask Klaviyo if it is above the minimum.

Updated 2026-11-05, from our data and official sources.

Apply with your AI assistant

With The Stack connected to Claude, ChatGPT or Cursor, paste this. Your assistant tailors your CV and cover letter, checks the visa facts and gives you the apply link.

Help me apply to this job on The Stack: https://jobs.trythestack.co/jobs/software-engineer-ii-infrastructure-security-klaviyo

Not connected yet? Connect in a minute. To help your user apply, call the MCP tool prepare_application with slug "software-engineer-ii-infrastructure-security-klaviyo": it returns the apply link, the visa facts and a CV and cover letter checklist. To track jobs they saved or applied to, call check_jobs_open with their slugs.

About the role

Responsibilities:
- Design, build and operate cloud-native infrastructure security services used across the company.
- Own components end-to-end: implementation, testing, deployment, monitoring and incident response.
- Improve availability, scalability, latency and operational efficiency of security systems.
- Collaborate on system design and architecture, contribute to code and design reviews.
- Build monitoring, alerting, automation and documentation to reduce toil and improve developer experience.
- Participate in on-call rotation with focus on learning, prevention and fast recovery.

Requirements:
- 3+ years building and operating cloud-native distributed systems in production.
- Strong production-quality coding skills in Python or Go and familiarity with modern frameworks/tooling.
- Hands-on experience with AWS (networking, managed services, IAM) and container orchestration (Kubernetes).
- Experience with IaC (Terraform), observability, incident response and performance troubleshooting.
- Security-minded approach to design, secrets management, and least-privilege principles.
- Good collaboration and communication skills; comfortable owning services independently.

Responsibilities

You will design, build, and maintain cloud-native security services while collaborating with engineers to improve infrastructure reliability and security. Additionally, you will participate in on-call rotations and contribute to operational excellence through monitoring, alerting, and incident response.

Requirements

Candidates must have 3+ years of experience building and operating cloud-native, distributed systems in production. Proficiency in Python or Go, along with hands-on experience in AWS and Kubernetes, is required.

Key skills

• Python — in 1200 other listings on The Stack
• Golang — in 64 other listings on The Stack
• AWS — in 802 other listings on The Stack
• Kubernetes — in 585 other listings on The Stack
• Terraform — in 470 other listings on The Stack
• Distributed systems — in 342 other listings on The Stack
• Cloud-native — in 12 other listings on The Stack
• Infrastructure security — in 9 other listings on The Stack
• IAM
• Networking
• Observability
• Automation
• Incident response
• API gateways
• Zero-trust architectures
• Secrets management

On The Stack (as of 2026-11-05)

• Klaviyo has 18 other listings on The Stack, 10 of them marked as offering visa sponsorship.
• 37 visa-sponsored jobs in Ireland on The Stack, posted in the last 60 days.
• 195 visa-sponsored software engineer jobs in Europe on The Stack, posted in the last 60 days.

Frequently asked questions about Klaviyo

Is this Software Engineer II, Infrastructure Security role still open?

It was posted on 2026-08-28. Listings more than 30 days old may no longer be active, so check Klaviyo's site before applying.

Does Klaviyo offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Klaviyo's site.

Where is this role located?

The listing gives the location as Ireland. It is marked on-site.

What skills does this role ask for?

The listing names: Python, Golang, AWS, Kubernetes, Terraform, Distributed systems, Cloud-native, Infrastructure security, IAM, Networking, Observability, Automation, Incident response, API gateways, Zero-trust architectures, Secrets management.