Senior Infrastructure Engineer

Sitecore; Dublin; Hybrid; EUR 90,000 - 150,000; Full time

Job summary

Scrunch, a Sitecore company, is seeking a senior Infrastructure Engineer to design, build, and operate the foundational systems powering its AI-first platform. The role spans cloud infrastructure, developer tooling, observability, and reliability, with high ownership and real impact on scale.

You will work in a fast-velocity environment, writing production-grade Python, applying IaC, and deploying at scale, including edge compute decisions and performance optimizations.

Qualifications

• Design, build and operate cloud services at scale.
• Experience in a high-velocity software development organization.
• Edge compute decisions: when to run at the edge vs back in stack.
• Infra as code with automation; Terraform or similar tools.
• Solid understanding of database performance and scaling; bottleneck identification.
• Familiarity with workflow orchestration tools (Prefect, Airflow, Temporal, Inngest).
• Strong foundation in observability: logging, tracing, metrics, alerting.
• Production-quality Python coding; software engineering mindset.

Responsibilities

• Design, build and operate foundational systems powering Scrunch's platform.
• Own cloud infrastructure, tooling, observability and reliability.
• Drive automation and scalable solutions; advocate for best practices in CI/CD.
• Collaborate across teams to scale services and improve performance.

Skills

Python

Cloud architecture

IaC Terraform

Observability Monitoring

Edge computing

Distributed systems

Tools

Terraform

Airflow

Prefect

Temporal

Inngest

GCP

Job description

About Scrunch

Scrunch, a Sitecore company, is on a mission to bring brands to an AI-first future—where people increasingly rely on LLMs to discover, understand, and act on information that matters to them.

As AI search and conversational agents replace traditional web search and browsing, Scrunch helps marketing teams rethink how their products and services are discovered and surfaced on AI platforms like ChatGPT, Claude, Gemini, and more—working with AI platforms, not against them. This shift represents the biggest change to marketing since the dawn of the internet.

Today, more than 500 paying brands—including Fortune 500 companies like Lenovo, category-defining brands like Akamai, ADP, Lenovo and breakout startups like Clerk—use the platform.

About the Role

We're looking for a senior Infrastructure Engineer to join our team. This is a high-ownership role responsible for designing, building, and operating the foundational systems that power Scrunch's platform – from cloud infrastructure and developer tooling all the way to observability and reliability. Infrastructure at Scrunch is business-critical: our customers depend on it, and you'll have real impact shaping how we scale.

What We're Looking For:

For this role, we'd like to see candidates that:

• Have experience working in a high-velocity software development organization.
• Have experience designing, building, and operating cloud services at scale, preferably on GCP.
• Have deployed and operated edge compute functions, and understand when it makes sense to run logic at the edge versus further back in the stack.
• Can treat infrastructure like software versioned, tested, and deployed through automation rather than one-off console clicks. Experience with Terraform or similar IaC tools is a plus.
• Posses a solid understanding of database performance and scaling patterns, and have hands-on experience identifying bottlenecks and addressing them before they become outages.
• Familiarity with workflow orchestration tools or job queue systems such as Prefect, Airflow, Temporal, Inngest, or similar, and are comfortable designing reliable, retryable async pipelines.
• Have a strong foundation in building observable systems, including structured logging, distributed tracing, metrics dashboards, and alerting.
• Are comfortable writing production-quality code (we mostly use python) and approach infrastructure work with a software engineering mindset.

Scrunch is an equal opportunity employer. We welcome people of all backgrounds, experiences, perspectives, and identities. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.