Software Build & Release Engineer

Efficient is looking for a Software Build & Release Engineer to own the GitHub-based build environment that every engineer on the team depends on to build, test, and ship software. That means developing and running the CI/CD pipelines, executing our testing and release processes, and being the first person to dig in when a build or the infrastructure behind it breaks. This is a hands-on senior role. Success looks like fast, reliable builds, predictable releases, and a build system that other engineers can understand because it is clearly documented. What you'll do Build environment • Design, develop, and maintain the GitHub-based build environment, including GitHub Actions workflows, runners, and repository automation. • Manage build compute across providers such as Namespace, Google Cloud, and AWS, balancing speed, reliability, and cost. • Improve build times and stability through caching, parallelization, and dependency management. • Keep the build environment secure: secrets handling, access controls, and dependency and artifact integrity. Testing and release • Execute and continuously improve the testing process, including automated test pipelines and reporting on results. • Run the release process end to end: branching, versioning, packaging, artifact publishing, and release notes. • Reduce flaky tests and manual release steps so that releases are repeatable and low-risk. Triage and debugging • Triage build, test, and infrastructure failures, and determine whether the cause is in code, configuration, tooling, or the provider. • Debug problems to root cause and put fixes in place that prevent them from recurring. • Monitor the health of builds and infrastructure, and act on trends before they become outages. Communication and documentation • Write and maintain clear documentation: build system architecture, runbooks, release procedures, and troubleshooting guides. • Communicate build status, incidents, and upcoming changes to engineering teams in plain, timely terms. • Work with developers to understand their needs and help them use the build and release tooling effectively. Required qualifications • At least 5 years of industry experience in software build, release, CI/CD, or infrastructure engineering. • Deep hands-on experience with GitHub and GitHub Actions, including workflow design, self-hosted or third-party runners, and repository administration. • Experience with build systems such as CMake and Make. • Working familiarity with cloud service and compute providers such as Namespace, Google Cloud, and AWS. • Proven ability to triage and debug complex build, test, and infrastructure failures across the stack. • Experience executing testing and release processes for production software. • Strong scripting skills (for example Bash and Python) and comfort working in Linux environments. • Experience writing and debugging C/C++ programs. • Excellent written and verbal communication skills, with a track record of producing documentation that others rely on. Preferred qualifications • Experience with build caching and remote execution. • Familiarity with observability and monitoring tools for CI and infrastructure. • Experience with containers and orchestration (Docker, Kubernetes). • Knowledge of software supply chain security practices, such as artifact signing and SBOMs. • Experience managing cloud and CI spend. We offer a competitive base salary for this role, generally ranging from $160,000 to $220,000, plus a 10% annual bonus, meaningful equity, and comprehensive benefits. Final compensation will depend on experience, level, and location, with flexibility for the right candidate.