Staff Infrastructure Engineer

Unity; København; On-site; DKK 916,100 - 1,145,100; Full time

Benefits offered by this job

Health insurance

Stock ownership

Pension plan

Generous vacation

Commute subsidy

Office snacks

Wellbeing programs

Learning and development

Volunteer and donation matching

Job summary

Unity, a leading real-time advertising platform, is seeking a senior engineer to guide architecture and operation of our Ads Infrastructure. You will own and operate distributed systems, mentor engineers, and collaborate with cross‑functional teams to improve observability, resiliency, and performance.

You have 7+ years of production experience, deep Kubernetes and cloud-native systems knowledge, and strong debugging and networking skills. Relocation not offered; English communication required.

Qualifications

• 7+ years building and operating large-scale distributed systems in production.
• Backend service and infrastructure development experience.
• Hands-on Kubernetes and cloud-native systems in GCP/AWS/Azure.
• Expertise in traffic management, load balancing, networking, and data processing.
• Strong understanding of networking, observability, and end-to-end debugging.

Responsibilities

• Guide architecture and low-level design of distributed systems for scalability and efficiency.
• Own and operate infrastructure services with on-call duties and deep debugging.
• Support onboarding and usage of platform-managed services by engineering teams.
• Drive observability, resiliency, and automation improvements.
• Mentor engineers and uphold engineering best practices through reviews.
• Advise leadership on platform direction and adoption of new infra tech.

Skills

Distributed systems

Kubernetes

Cloud platforms

Observability

On-call responsibilities

Code reviews

Tools

ArgoCD

Job description

Overview

The Ads Infrastructure team at Unity builds and operates the core distributed systems that power one of the largest real‑time advertising platforms in the world. Our infrastructure underpins every part of Unity Ads, providing the foundation for segmentation, optimization, bidding, and analytics at global scale. We focus on resilient, scalable, and cost‑efficient systems. The platform is built on technologies such as Kubernetes, Kafka, Flink, Valkey, and supports the developers, data scientists, and product teams that drive Unity Ads forward.

What you’ll be doing

• Guide the architecture and low level design of distributed systems to ensure scalability, reliability, and efficiency
• Own and operate infrastructure services with the engineering teams, including on‑call responsibilities and deep debugging of complex issues
• Support engineering teams onboarding and usage of platform‑managed services
• Drive operational excellence through improved observability, resiliency, and automation
• Mentor engineers and raise the technical bar through design reviews, code reviews, and engineering best practices
• Advise leadership on platform direction, long‑term investment, and adoption of emerging infrastructure technologies

What we’re looking for

• 7 or more years of experience building and operating large‑scale distributed systems in production
• Programming experience for backend service and infrastructure development
• Hands‑on experience with Kubernetes and cloud‑native systems in GCP, AWS, or Azure
• Expertise in distributed infrastructure including traffic management, load balancing, networking, and large‑scale data processing
• Deep understanding of networking, observability, and debugging distributed systems end to end

You might also have

• Deep expertise in distributed caching or storage systems used to support large‑scale, low‑latency workloads
• Experience with Kubernetes CI/CD tools such as ArgoCD
• Expertise in protocols, routing, and service discovery in large‑scale environments
• Domain knowledge of online advertising and ad‑tech systems is a plus

Additional information

• Relocation support is not available for this position
• Work visa/immigration sponsorship is not available for this position

Total Base Pay Range

916,100.00 - 1,145,100.00 DKK Annual

Benefits

• Comprehensive health, life, and disability insurance
• Commute subsidy
• Employee stock ownership
• Competitive retirement/pension plans
• Generous vacation and personal days
• Support for new parents through leave and family‑care programs
• Office food snacks
• Mental health and wellbeing programs and support
• Employee Resource Groups
• Global Employee Assistance Program
• Training and development programs
• Volunteering and donation matching program

Unity is a proud equal‑opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law. Our differences are strengths that enable us to support the growing and evolving needs of our customers, partners, and collaborators. This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.