Senior Real-Time Systems Architect (Fusion Controls)

Hitachi, Ltd.; Kearny (NJ); On-site; USD 200,000 - 230,000; Full time

Benefits offered by this job

Health benefits

Employee equity stock options

20 days PTO

Job summary

Thea Energy in the United States seeks a Principal Real-Time Software Engineer to design, develop, and deploy the Eos control framework. You will work with controls, physics, and diagnostics teams to turn requirements into a reliable real-time software platform supporting plasma control, magnet and power supply control, real-time diagnostics, and other time-critical applications.

This role combines hands-on software development with architecture, hardware integration, verification,

Qualifications

• Bachelor’s degree or equivalent experience in a technical field.
• 10+ years of software engineering in real-time systems.
• Hands-on real-time control, plasma control, or diagnosis systems experience.
• Contributions to reusable real-time software platforms or major framework.
• Expertise in C and modern C++ with timing/memory control.

Responsibilities

• Design and implement the Eos real-time framework architecture and execution services.
• Evaluate MARTe2 and other real-time frameworks; prototype and measure performance.
• Translate control needs into timing budgets, latency, jitter, and throughput requirements.
• Define modular boundaries for algorithms, hardware interfaces, and OS services; ensure testability.
• Develop production-quality C/C++ components for multirate execution, IPC, shared memory, and lifecycle transitions.
• Tune RT Linux platforms (CPU affinity, memory locking, NUMA placement, scheduling).
• Create reusable hardware abstraction and I/O interfaces for digitizers, FPGA systems, timing hardware, and DSPs.
• Design data exchange and timing interfaces (shared memory, deterministic networks, PCIe, RDMA).
• Support control algorithms, observers, estimators, and model-based interfaces; enable hardware-in-the-loop testing.
• Define interfaces with supervisory controls, PLCs, safety systems; document authority and fault handling.
• Integrate timestamps, data quality, provenance, and data capture with the Eos data infrastructure.

Skills

C & C++

Concurrency

Real-time systems

Software architecture

Education

Bachelor’s degree in computer science, computer engineering, electrical engineering, physics, or related field

Tools

MARTe2

Linux (RT)

PREEMPT_RT

EPICS

Job description

Thea Energy in the United States seeks a Principal Real-Time Software Engineer to design, develop, and deploy the Eos control framework. You will work with controls, physics, and diagnostics teams to turn requirements into a reliable real-time software platform supporting plasma control, magnet and power supply control, real-time diagnostics, and other time-critical applications.

This role combines hands-on software development with architecture, hardware integration, verification,