What You’ll Do:

• Design, build, and maintain Kotlin APIs and backend services that power MNTN’s distributed pacing and ad delivery systems
• Own critical infrastructure that drives optimization decisions across multiple campaigns and audiences
• Raise the bar for engineering quality and team culture through peer reviews, mentorship, and strong technical leadership
• Scale out microservices to ensure high performance and reliability
• Continuously optimize and evolve existing services for better performance and maintainability
• Collaborate cross-functionally with Business and Project Leads to communicate complex technical concepts and translate business requirements into scalable solutions

What You’ll Bring:

• 5+ years of experience building distributed systems using Kotlin and Python
• Expertise in non-relational and relational databases, including SQL, schema design, indexing, and performance tuning
• Demonstrated experience with microservices architecture in production environments
• Comfort working across tech stacks, including systems written in Rust, Python, and data platforms like PySpark
• Familiarity with Kafka or other high-throughput messaging systems
• Practical experience on cloud platforms such as GCP or AWS
• Strong understanding of Linux/UNIX environments and developer tooling (e.g., Git, CI/CD)
• A product mindset, with curiosity about how your work impacts customers and how systems perform at scale
• Enthusiastic about using AI tools in your workflow to enhance productivity
• Big plus: exposure to OpenRTB, DSP, or ad delivery optimizations