Senior Software Engineer

About the role

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2026.)

We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/ .

We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great.

So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.

We're looking for a Senior Backend Engineer to join our Integrations team! Our team powers the systems that move massive amounts of data in and out of the MNTN platform. We are a small but fierce tiger team that moves fast, but has done things right since day one, and we aim to keep it that way. If you enjoy learning and growing your skillset in sophisticated distributed systems, always think before you code, love using the latest and greatest tools and instrumentation, and cringe at the word “tech debt”, then please apply!

Our core stack:

Golang, Postgres, Kubernetes, GCP (PubSub, Bigtable, BigQuery, and more).

What you’ll do:

Work closely with the rest of the team to evolve the Integrations platform to handle trillions of tuples across hundreds of different integrations.

Own the design, implementation, testing, monitoring, and optimization of integration connectors.

Work closely with both technical and non-technical cross-team stakeholders to get our data streams where they’ll have the biggest impact on the entire business.

Find creative, scalable, and durable solutions to tough data synchronization challenges spanning across our systems and our partners'.

Join our on-call and other rotations that share the load equally among the team. It takes a village..

Bring energy and creativity to our use of AI, our knowledge shares, retros, and other regular team growth activities.

About you:

5+ years of experience as a full-time backend engineer working on a SaaS product with a large data component. I.e. not just building APIs for UIs.

Experience with distributed microservice architectures: reliable service design for autoscaling (containers appear and disappear all the time), RESTful service-to-service communication (even if its an RPC protocol).

Experience with at least one compiled language. Golang is preferred, but Rust, Kotlin, Java, C++ are welcome.

Experience with at least one messaging system (Kafka, SQS, PubSub, RabbitMQ, etc) at scale (message volumes of 1K/s+).

A foundation in CS fundamentals: data types, algorithms, CPU/memory management, networking, how the internet works.

Experience with observability systems for microservice architectures: structured logging, tracing, custom metrics.

Are a design-driven professional. You form a plan of attack and articulate it on paper to make sure its sound. You don’t document for-its-own-sake, but you don’t just start shoveling code and pray for the best either.

Are comfortable with Postgres-flavor databases. You’re not necessarily a SQL expert, but you know about relational database concerns (indices, foreign/unique constraints, why you should never use stored procedures).

Are more comfortable on the command-line than in UIs.

Can communicate clearly and concisely with both technical and non-technical peers.

An idealistic but practical mindset: aim for the stars, but focus on what will make the biggest difference right now.

About MNTN

Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then that ain’t us folks. Tell those trolls to take a hike–you’re waiting to climb a MNTN.

MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue.

Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University.

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