Role: IoT Systems Architect
Location: Sunnyvale, CA (Onsite)
Duration: 12+ Months
Interview Mode: Face 2 Face
MUST HAVE SKILLS:
MQTT Expertise: MQTT broker configuration | QoS levels | Topic hierarchy | Retained messages | MQTT 5.0 features
Strong C++ Development
Python Development - for cloud side integration and services.
Must understand AWS services supporting IoT connectivity.
10 15 years software engineering with 5+ years IoT architecture,
Strong embedded systems background
Hands-on coding in C++ and Python
Years of Experience Required:
10+ years overall; 5+ years in IoT systems architecture mandatory
Education: Bachelor's or Master's in Computer Science, Software Engineering, or related technical field
Essential Job Duties
Support the expansion of the MQTT-based IoT architecture across our embedded medical device platforms and AWS cloud infrastructure;
Produce architecture decision records (ADRs), interface contracts, design specifications, system diagrams; Implement connectivity middleware and communication services in C++ & Python on device side and cloud side;
Architect and implement cloud-side integration using AWS microservices (EC2, S3, and related services) to support the migrated protocol layer
Design and implement security hardening: TLS/mTLS, certificate-based device authentication, topic-level authorization, and PKI lifecycle management Design for cloud connectivity reliability: offline buffering, reconnect strategies, message deduplication, and guaranteed delivery patterns appropriate for embedded systems
Lead and participate in design reviews with the FTE engineering team; incorporate feedback from internal review gates
Support debugging and root cause analysis of connectivity issues during migration and integration testing
Produce thorough documentation and conduct knowledge transfer sessions to ensure continuity at engagement close
Required Skills and Experience
Deep expertise in C++ & Python for system-level software developmentStrong MQTT expertise - broker configuration, QoS levels, topic design, retained messages, MQTT 5.0 featuresSolid understanding of pub/sub and RPC messaging patterns, including how to implement reliable RPC over pub/sub protocolsWorking knowledge of AWS microservices (EC2, S3, and adjacent services); ability to design cloud-side components supporting device connectivityStrong grasp of network security fundamentals: TLS/mTLS, PKI, certificate management, and authorization patterns for IoT devicesProven ability to produce high-quality architecture documentation - ADRs, design specs, interface definitionsExcellent communication skills; able to lead design discussions and drive alignment across technical and non-technical stakeholdersQuality-first engineering mindset: writes clean, well-documented, maintainable code that teammates can own after the engagement endsAble to work independently and manage technical ambiguity with minimal guidance
Required Education and Training
Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field10+ years of software engineering experience, with 5+ years focused on IoT systems architecture
Working Conditions
Preferred Skills and Experience
Experience in regulated or safety-critical industries (medical, aerospace, industrial) - valued but not required Background in asynchronous, event-driven, and multi-threaded system design Familiarity with FMEA or software risk analysis processes Familiarity with cloud observability and operational monitoring tooling (e.g., AWS CloudWatch)Strong industry experience in architecture and development of scalable, production-quality systems
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