Principal Software Engineer, Medical Devices

About SandboxAQ: SandboxAQ is an elite, hyper-growth deep-tech pioneer delivering enterprise-grade AI and quantum sensing solutions to solve some of the world’s most complex clinical, financial, and cybersecurity challenges. Emerging from Alphabet Inc. as an independent, growth-backed powerhouse in 2022, our multidisciplinary team leverages Large Quantitative Models (LQMs) to drive transformations in life sciences, navigation, and cryptographic infrastructure. Backed by world-class investors and a legendary braintrust of industry leaders, SandboxAQ operates a high-ownership global workspace built on entrepreneurial impact and technical excellence.

Position Overview

We are seeking a visionary, deeply technical Principal Software Engineer (Senior Staff track) to serve as the definitive Technical Lead for our AQMed medical device software platform. Operating at the intersection of regulated medical systems engineering and high-velocity startup innovation, you will take absolute technical ownership of the end-to-end software architecture powering our next-generation, non-invasive cardiac diagnostic platform. Spanning embedded firmware, in-field Linux devices, secure cloud pipelines, and clinician-facing web portals, you will ensure our system remains safe, highly available, and easily extensible. This player-coach role demands an elite systems architect who will scale engineering craft, enforce strict compliance guardrails, and act as the ultimate authority for an inspiring, patient-critical product.

Key Responsibilities

• Platform Architecture & Strategy: Own and govern the end-to-end software stack architectural design across embedded Linux kernels, cloud analytics pipelines (AWS/GCP), and external clinician interfaces.
• Regulated Data Path Integrity: Architect and enforce a production-grade, HIPAA/GDPR-compliant data platform ensuring absolute information confidentiality, encryption at rest, and audit logging from the sensor to the cloud.
• Hands-On System Engineering: Lead by example by writing robust software components, evaluating complex pull requests, debugging hardware-software integration constraints in the lab, and configuring CI/CD pipelines.
• Compliance & Quality Governance: Enforce the engineering team’s strict adherence to medical device software regulations and lifecycle standards, specifically including IEC 62304 (Class B/C) and ISO 14971 .
• Technical Mentorship & Standards: Mentor a growing unit of senior and staff engineers, cultivating a high-performing culture of rigorous design reviews, test automation strategies, and detailed technical documentation.
• Cross-Functional Product Scoping: Partner with Product, Clinical, and Regulatory stakeholders to translate product rules and clinical performance metrics into actionable timelines supporting 510(k) and De Novo submissions.

Required Skills & Qualifications

• 10+ years of professional software engineering history, containing at least 4+ years of explicit experience operating as a Technical Lead or Principal Architect for highly distributed, cloud-heavy enterprise environments.
• Medical Device Industry Footprint: Proven history delivering and commercializing regulated software modules under the **IEC 62304 standard through the full product lifecycle**.
• Advanced programmatic mastery across systems languages (**Rust, C++, or Go**) paired with extensive data manipulation experience using Python .
• Deep infrastructure familiarity spanning cloud systems (AWS or GCP), declarative configuration management via **Terraform**, container orchestration (Docker/Kubernetes), and telemetry dashboards (Datadog or CloudWatch).
• Demonstrated capacity to establish robust cybersecurity frameworks, including PKI architectures, secure device authentication, and defensive threat modeling for connected hardware.
• Location Context: 100% remote-first full-time operational framework restricted exclusively to qualified professionals permanently residing within the United States .

Preferred Strategic Indicators (Nice to Have)

• Prior experience commercializing Software as a Medical Device (SaMD) applications that have scaled successfully within clinical markets.
• Hands-on integration experience linking proprietary hospital software with major EMR/EHR IT platforms (such as Epic or Cerner) using **HL7 or FHIR** data standards.
• Familiarity with the Cardiology domain, physiological data processing, or ECG waveform tracking algorithms.

What We Offer

• Tiered Base Salary Structures: Tier 1: $260,000 – $390,000 USD | Tier 2: $234,000 – $351,000 USD | Tier 3: $208,000 – $312,000 USD, supplemented by lucrative bonuses and corporate equity participation.
• Comprehensive medical, dental, and vision packages for contributors and dependents with highly generous employer premium contributions.
• Secure retirement savings plans featuring structured corporate matching options and inclusive family-building/parental leave benefits.
• Profound work-from-home remote flexibility supported by company-wide seasonal breaks and flexible PTO rules to preserve sustainable performance.
• An un-siloed, high-growth research environment backed by Alphabet origins, dealing with era-defining challenges alongside elite physics, AI, and medicine professionals.