Sr. Software Engineer, Backend Data

Sr. Software Engineer, Backend Data

Unity is looking for a Senior Software Developer to join our Vector Ads team, where we build the real-time systems that power Unity's global advertising platform. This is a high-scale, low-latency environment — processing billions of requests daily to deliver fast, relevant ads to players around the world. You'll help build the core services behind ad delivery, bidding, reporting, and analytics. This is a great opportunity for an engineer who's excited to work on performance-critical systems, collaborate across teams, and grow in a fast-paced environment.

What You'll Be Doing

Design, build, and maintain backend services and APIs that support ad delivery. Work on scalable, high-availability systems used across Unity's ads ecosystem. Collaborate with engineers, product managers, and data teams to deliver new features. Improve performance, observability, and cost-efficiency of backend systems. Contribute to architectural decisions and technical direction of the platform.

What We're Looking For

Proven experience building backend services at scale. Proficiency in Golang, and relational databases (e.g., MySQL). Familiarity with cloud infrastructure and observability tools (Kubernetes, Ray, etc.). Spark & Flink experience. Understanding of API design, distributed systems, and system reliability.

You Might Also Have

Experience in ad tech, programmatic advertising, or real-time bidding systems. Background with infrastructure-as-code (e.g., Terraform). Familiarity with networking, caching, or real-time data pipelines.

Relocation support is not available for this position.

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. If you have a disability that means there are preparations or accommodations we can make to help ensure you have a comfortable and positive interview experience, please fill out this form to let us know.

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.

Gross pay salary $183,700—$248,600 USD