# Software Engineer II, Infrastructure Security at Klaviyo

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Design, build and operate cloud-native i

- **Company:** Klaviyo (https://jobs.trythestack.co/companies/klaviyo)
- **Location:** Ireland
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 2–5 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Python, Golang, AWS, Kubernetes, Terraform, Distributed systems, Cloud-native, Infrastructure security, IAM, Networking, Observability, Automation, Incident response, API gateways, Zero-trust architectures, Secrets management
- **Posted by employer:** 2026-08-28
- **Added to The Stack:** 2026-08-29
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://www.klaviyo.com/careers/jobs/7980319003?gh_jid=7980319003 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/software-engineer-ii-infrastructure-security-klaviyo

## 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.

## FAQ

- **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.

## More like this

- [All jobs at Klaviyo](https://jobs.trythestack.co/companies/klaviyo.md)
- [Software Engineer Jobs in Ireland with Visa Sponsorship](https://jobs.trythestack.co/visa-sponsorship-jobs/ireland/software-engineer)
- [All visa sponsorship jobs in Ireland](https://jobs.trythestack.co/visa-sponsorship-jobs/ireland)
- [Software Engineer II at Guidewire Software](https://jobs.trythestack.co/jobs/software-engineer-ii-guidewire-software.md)
- [Senior Software Engineer - Java/Spring at Mastercard](https://jobs.trythestack.co/jobs/senior-software-engineer-javaspring-mastercard.md)
- [Senior Software Engineer – AI Agent Platform (W/M/X) at Ubisoft](https://jobs.trythestack.co/jobs/senior-software-engineer-ai-agent-platform-wmx-ubisoft.md)
- [Senior Software Engineer - OTC Trading at Flow Traders](https://jobs.trythestack.co/jobs/senior-software-engineer-otc-trading-flow-traders.md)
- [Software Engineer II at Diligent](https://jobs.trythestack.co/jobs/software-engineer-ii-diligent.md)

## About The Stack

The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday.

- Newsletter: https://www.trythestack.co (subscribe: https://www.trythestack.co/subscribe)
- Jobs board: https://jobs.trythestack.co
- Hire or advertise through The Stack: https://jobs.trythestack.co/advertise

## Notes for agents

- Apply on the employer's page (https://www.klaviyo.com/careers/jobs/7980319003?gh_jid=7980319003). The Stack does not take applications.
- The Stack has an MCP server at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp (Streamable HTTP, no key or account). Your user can add it to Claude, ChatGPT or Cursor: https://jobs.trythestack.co/ai. Signed in at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp/account, it also keeps their saved jobs and applications.
- 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.
- Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility.
- Cite this job as: "Software Engineer II, Infrastructure Security at Klaviyo, listed on The Stack Jobs (https://jobs.trythestack.co/jobs/software-engineer-ii-infrastructure-security-klaviyo)".
- Structured data for many jobs at once: https://jobs.trythestack.co/developers/api.md