SandboxAQ · 10 hours ago
Staff Build Engineer, Cybersecurity
United States
Full-time
Remote
Senior Level, Lead/Staff
$146K/yr - $221K/yr
5+ years expSandboxAQ is a high-growth company delivering AI solutions to tackle significant global challenges. They are looking for a Staff Build Infrastructure Engineer to develop the engineering platform for their AQtive Guard products, focusing on optimizing software delivery speed, quality, and security for major organizations.
Quantum ComputingArtificial Intelligence (AI)Cyber SecuritySaaSInformation Technology
Responsibilities
Architect the Build Plane: Lead the design and implementation of a high-performance, hermetic build system using Bazel. You will optimize the graph for massive concurrency and incremental correctness
Scale Remote Execution: Design, deploy, and tune a Remote Build Execution (RBE) cluster (e.g., BuildBarn) running on Kubernetes. You will manage the distributed cache and worker pools to handle spikes in compilation demand across thousands of cores
Engineer Developer Tooling: Write custom CLI tools and IDE plugins that abstract the complexity of the build system. You will create the "Golden Path" that allows product engineers to spin up hermetic test environments with a single command
Modernize CI/CD: Move beyond brittle shell scripts. You will treat pipelines as software, using GitOps (ArgoCD) to orchestrate testing workflows that are dynamic, testable, and versioned
Optimize the Inner Loop: Obsessively profile and reduce build latency. You will analyze critical paths, debug cache misses, and write custom Bazel rules to ensure that feedback loops remain under seconds, not minutes
Drive Technical Culture: Mentor the wider engineering team on monorepo best practices, dependency management, and hermeticity. You will set the standard for how code is built, tested, and released
Qualification
Required
5+ years of Software Engineering experience with a focus on Developer Infrastructure, Build Engineering, or SRE
Deep expertise in Bazel. You can write custom Starlark rules/macros, debug toolchain hermeticity issues, and explain the difference between input pruning and output caching
Systems Programming Proficiency (Go/Kotlin/Python). You can write high-performance CLI tools, indexers, or sidecars to augment the build experience
Experience with Remote Execution. You have operated RBE systems (BuildBarn, EngFlow, or RBE) at scale and understand the underlying gRPC protocols
Kubernetes Fluency. You understand how to schedule ephemeral build workloads on K8s and have experience with auto-scaling based on queue depth
Preferred
Experience migrating legacy codebases (Maven, Gradle, Make) to Bazel
Contributions to the open-source Bazel ecosystem or rules (e.g., rules_go, rules_docker)
Experience for toolchain management
Knowledge of compiler internals and linkers
Experience building ephemeral test environments
Benefits
Comprehensive medical, dental, and vision coverage for employees and dependents with generous employer premium contributions
Retirement savings with company matching
Paid parental leave
Inclusive family-building benefits
Flexible paid time off
Company-wide seasonal breaks
Support for flexible work arrangements that enable sustainable performance
Opportunities for continuous learning and growth through on-the-job development, cross-functional collaboration, and access to internal learning and development programs
Company
SandboxAQ
SandboxAQ develops AI and quantum technology solutions that enhance biopharma, cybersecurity, and materials science.
51-200 employees
H1B Sponsorship
SandboxAQ has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (7)
2024 (6)
2023 (3)
2022 (5)
2021 (1)
2020 (5)
Funding
Current Stage
Late StageTotal Funding
$975MKey Investors
Eric Schmidt Angel InvestmentsMichael J. Fox Foundation
2025-04-04Series E· $150M
2024-12-18Series E· $300M
2024-10-29Grant· $25M
Leadership Team
Jack Hidary
Chief Executive Officer
Joerg Rathenberg
Head Of Marketing
Recent News
2026-01-10
Company data provided by crunchbase