Senior Software Engineer – Performance Pacing

MNTN

Senior Software Engineer developing Kotlin APIs and backend services for MNTN's Connected TV advertising. Leading engineering quality and driving infrastructure optimization across campaigns.

Posted 6/24/2026full-timeRemote • California • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsGoogle Cloud PlatformKafkaKotlinLinuxMicroservicesPySparkPythonRustSQLUnix

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

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

Benefits

Comp & perks

100% remote within the US
Flexible vacation policy
Annual vacation allowance for travel related expenses
Three-day weekend every month of the year
Competitive compensation
100% healthcare coverage
401k plan
Flexible Spending Account (FSA) for dependent, medical, and dental care
Access to coaching, therapy, and professional development

ATS Keywords

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Hard Skills & Tools

KotlinPythonmicroservices architectureSQLschema designindexingperformance tuningRustPySparkAI tools

Soft Skills

technical leadershipmentorshippeer reviewscollaborationcommunicationproduct mindsetcuriosity