Senior Software Engineer - CDS

MNTN is a company that prioritizes its people and has been recognized for its innovative approach to Connected TV advertising. The Senior Software Engineer will contribute to the core infrastructure for ad delivery, focusing on developing scalable systems and improving performance across the platform.

Responsibilities:

• Design, build, and operate high-throughput Java/Kotlin services that power our ad server and creative delivery pipelines
• Own systems end-to-end — from API design and ingestion flows to transformation, caching, and global delivery
• Work across the stack when needed (Rust services, Kafka streams, Terraform, relational databases) to solve the right problem with the right tool
• Improve performance, observability, and resiliency of critical production systems running at scale
• Partner closely with Product and Project leads to translate business needs into scalable technical solutions
• Contribute to architectural decisions that shape the future of our creative platform
• Raise the engineering bar through thoughtful code reviews, design discussions, and pragmatic best practices

Requirements:

• 5+ years building production-grade backend systems in Java, Kotlin, or Scala
• A product mindset — you care about why you're building something, not just what you're building
• Experience designing and operating high-scale, distributed systems
• Strong SQL fundamentals — schema design, indexing strategies, query optimization, and performance tuning
• Comfort working across multiple technologies and services, even outside your primary language
• Solid understanding of RESTful APIs and microservices architecture
• Familiarity with messaging systems (e.g., Kafka) and asynchronous processing patterns
• Practical use of AI-assisted development tools (Cursor, ChatGPT, LLM copilots) to improve speed and quality