Optical Communications Software Engineer - Modem Integration

We’re looking for a software engineer to own modem integration and communications software for OCTANE. You’ll build the software that configures and monitors our (expected to be a COMET) modem, connects it to the terminal’s data interfaces, and manages link operation and recovery. Working with our photonics, firmware, controls, and hardware engineers, you’ll take a working laboratory system toward reliable outdoor and mobile operation, targeting Space Development Agency (SDA) interoperability.What you’ll do

• Own modem software integration for our free space optical communications terminal. Develop C/C++ software for modem configuration, telemetry, host interfaces, network interface and data transfer.
• Define software interfaces and acceptance criteria, including applicable SDA Optical Communications Terminal (OCT) requirements. Coordinate link states and timing with pointing, acquisition, and tracking (PAT) software.
• Implement link state machines, startup and shutdown sequences, fault handling, and recovery after fades or interruptions.
• Build Python tools and automated bench and hardware-in-the-loop tests. Measure throughput, latency, packet loss, and bit error rate to verify link performance.
• Troubleshoot problems across software, embedded interfaces, modem behavior, interfaces with the next level up in the network, and optical performance

• A bachelor’s or advanced degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field, or equivalent practical experience, and at least three years of modem integration and communications software development experience.
• Strong C/C++ skills and experience developing and debugging software on Linux or real-time embedded platforms.
• Hands-on experience integrating communications hardware and debugging hardware/software interfaces using logs, telemetry, protocol captures, and laboratory measurements.
• Experience using Python or a similar language for test automation and data analysis, with working knowledge of communications performance measurements.
• U.S. citizenship.

Nice to have

• Experience with SDA OCT standards, compliant optical terminals, or modem and terminal interoperability testing.
• Experience with COMET or other optical communications modems, including configuration, telemetry, and host integration.
• Experience with free-space or fiber-optic communications, including optical link budgets, receiver sensitivity, and the effects of changing received power.
• Familiarity with communications or modem DSP, including modulation, synchronization, framing, forward error correction, or equalization.
• Experience integrating software with FPGA-based systems, including register interfaces and data paths.
• Experience validating link state machines and fault recovery through hardware-in-the-loop testing or field demonstrations on mobile platforms.

• Own the software that connects OCTANE’s modem and terminal hardware into a working optical communications link, from bench integration through outdoor testing.
• Work closely with colleagues in photonics, firmware, controls, and electronics. Follow problems across interfaces and see the results in operating hardware.
• Take meaningful technical ownership in an engineer-led company with competitive compensation, equity, and a sustainable approach to work.

Company OverviewAt Bright, we build precision optical systems to guide data for a new era of communication. Our team combines precision engineering, optical design, and product development to commercialize the Lightfield Directing Array. Applications include laser communications, optical switching for data centers, lidar, and additive manufacturing. Founded in 2020, Bright Silicon Technologies is building an enduring technology manufacturing company. You’ll contribute to the development, launch, and scaling of advanced optical products. We offer competitive salaries and equity incentives, and we value effective engineering alongside long-term work/life balance.

Individual pay is determined by factors including job-related skills, experience, and relevant education or training.

Target Compensation: $120000 - $220000 + bonus + equity + benefits

Our benefits include:

• Equity Incentive Plan
• Comprehensive medical, dental, and vision coverage, along with other voluntary benefits
• 3% employer contribution to employee 401(k)
• Development and career growth opportunities
• Generous paid time off and paid company holidays