Senior Platform Engineer

What You'll Do

• Create paved paths from local dev to prod. Build and maintain a cohesive developer journey including local coding environments, build tooling, test workflows, artifact management, and deploy ergonomics so engineers can ship with confidence.
• Make builds faster, safer, and more observable. Improve performance, reliability, “debuggability”, and visibility across our CI/CD stack, ensuring teams understand what’s happening and can fix issues quickly.
• Partner deeply with product engineering teams. Pair with teams to understand friction points, co-design workflow improvements, and deliver tooling that fits real product needs not just theoretical ones.
• Raise the bar on engineering standards and release quality. Define and evolve best practices for building software, rollout strategies, release automation, and production readiness as Mux scales its delivery maturity.
• Shape the roadmap for developer productivity. Help prioritize and drive high-impact initiatives that keep Mux shipping quickly today and set us up for the next phase of growth.

Who You Are

• Fluent in modern CI/CD and the principles behind it. Built, operated, and improved real production ready pipelines, caring about fundamentals: fast feedback, repeatability, safety, and clear ownership.
• Strong software engineer who builds durable systems in a primarily Go ecosystem. Comfortable shipping and maintaining these tools with solid engineering judgment from APIs to automation.
• Think in end-to-end developer journeys. Build shared service abstractions and automation that connect local dev, builds, tests, and deploys into a clear, reliable path to ship on Kubernetes.
• Worked on Kubernetes at scale that matters to the business. Built and run production clusters that host critical-path workloads, keeping them healthy through upgrades, hardening and incident response.
• Bring strong infrastructure and networking fundamentals. Solid grasp of TCP/UDP, HTTP, TLS, DNS, Linux, and how systems behave under load to debug and design better platforms.
• Operate like a true partner to product teams. Internalize “your problems are our problems,” build trust through empathy and follow-through, and enjoy being the multiplier that helps multiple teams succeed.

Nice to Haves

• Experience with our toolchain. Familiarity working with a monorepo, Argo CD, Terraform, skaffold, or similar tools in the cloud native ecosystem.
• Experience in video or high-throughput systems. Background with video ingest/streaming/CDN-style data paths, Kafka-like event streaming, or distributed databases (CockroachDB, ClickHouse).