Senior Software Engineer, Cobalt

Tubi

. Build, integrate, and ship Cobalt as the runtime for Tubi's connected-TV apps .

Posted 9/29/2026full-timeSan Francisco • California • United StatesSenior💰 $186,400 - $266,300 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in modern C++ and Rust for systems programming, with a focus on performance optimization and integration in connected-TV applications. Proven ability to mentor engineers and lead cross-team technical initiatives.

Highest-signal resume keywords

Expert-Level Modern C++ (C++17/20)Strong Production Experience in RustExperience with GN/Ninja, CMake, or BazelHands-On Performance ProfilingExperience with Android NDK and Native Crash Analysis

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Modern C++RustMemory ManagementConcurrencyDebugging Large CodebasesCross-Compiling for ARMEmbedded LinuxPerformance ProfilingNative Module DevelopmentSafe FFI Boundaries

Soft Skills

Clear Written CommunicationMentoring

Tools & Technologies

GNNinjaCMakeBazelPerfPerfettoHeaptrackAdb

Industry Keywords

Connected-TV AppsDRMAdaptive StreamingDemuxingAd Playback

Tech Stack

Tools & technologies

AndroidLinuxRustC++

About the role

Key responsibilities & impact

Build, integrate, and ship Cobalt as the runtime for Tubi's connected-TV apps
Implement and maintain Starboard integrations for graphics, input, audio/video playback, DRM, and system services
Write native modules in modern C++ and Rust, including safe FFI boundaries
Improve startup and memory performance on low-end, memory-constrained devices
Track upstream Cobalt releases, contribute fixes upstream, and manage security patches
Collaborate with media and playback teams on demuxing, adaptive streaming, and ad playback
Build developer-machine and CI tooling to run and test the Tubi app on Cobalt without a device farm
Work with device partners' engineering teams on platform issues
Mentor engineers and raise the team's native and systems engineering standards

Requirements

What you’ll need

6+ years of professional software engineering experience, most of it in systems or native code
Expert-level modern C++ (C++17/20), including memory management, concurrency, templates, and debugging large codebases
Strong production experience in Rust, including ownership and lifetimes, async, unsafe code, and C/C++ interop (FFI, bindgen/cxx)
Experience with GN/Ninja, CMake, or Bazel and cross-compiling for ARM and embedded Linux or Android targets
Hands-on performance profiling of CPU, memory, and startup time using tools such as perf, Perfetto, or heaptrack
Experience with Android NDK, adb, native crash analysis, and symbolication
Clear written communication and a track record of leading technical initiatives across teams

Benefits

Comp & perks

Annual discretionary bonus
Long-term incentive plan
Medical, dental, and vision benefits
Insurance
401(k) plan
Paid time off
Flexible Time Off Policy for salaried/exempt employees
Twelve weeks of paid parental bonding leave for full-time, regular employees
Monthly wellness reimbursement for full-time, regular employees