Senior Software Engineer - Audience Targeting

MNTN · United States · Engineering

Posted 2026-09-24

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The MNTN Targeting Group helps brands reach the right customers with software that turns petabytes of data into meaningful audience targeting strategies. Our engineers, data scientists and analysts build software that serves content to millions of people every day.  You'll be joining the team working on MNTN Matched, our flagship machine learning product that is a critical revenue driver for the business. As a Senior Backend Engineer, you’ll be deeply involved in developing and improving the core models and systems that power our targeting products. Your work will directly influence the quality, efficiency, and innovation of our targeting platform.

What You’ll Do:

Create and support Kotlin APIs and services to support our targeting distributed systems - the most critical component in our business

Work in many environments, including languages and tools like Rust, PySpark, Kafka, and several RDBMSes

Understand the broader context of our software beyond the components you build

Raise the bar on our engineering culture, leading by example

Build high volume services that are reliable at scale

Work with enormous volumes of data (100s of TB daily)

Collaborate with and explain complex technical issues to Product and Project Leads

Optimize and enhance existing products

What You’ll Bring:

5+ years of Java, Kotlin, or Scala development experience

Comfort diving in to tech stacks outside your primary specialization

A desire to understand the purpose and impact of the tools you build

Strong proficiency in SQL, table design, indexing and other common database skills

Integration of AI tools such as Cursor, ChatGPT and other LLM based copilots in your workflow

Experience with Microservice style architecture

Familiarity with Git and Linux/UNIX environments

Experience on AWS, GCP, or other cloud infrastructure

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