Hardware Engineer

• Identify and design new hardware concepts or modifications to existing products in support of emerging use cases and customer needs.
• Perform design verification and troubleshoot digital and analog electronic circuits.
• Support the design of subsystems and PCBAs with attention to design-for-test (DFT), design-for-manufacturing (DFM), and EMC/EMI best practices, including signal integrity and grounding considerations.
• Conduct trade studies to evaluate new components, technologies, or approaches for potential use in future designs.
• Perform RF performance evaluations and system compatibility assessments across antennas, radios, and payloads to inform design decisions.
• Perform integration testing of new hardware and thoroughly document test results.
• Support complex or non-standard integration efforts involving third-party hardware and software, including payloads, sensors, SDKs, and APIs.
• Troubleshoot issues across hardware, firmware, and system interactions, including analyzing logs and telemetry and conducting root-cause analysis.
• Maintain awareness of RF technologies, UAV communication systems, and industry trends to inform design and product direction.

• Solid foundation in RF theory and hardware fundamentals, including propagation, link performance, antenna behavior, interference, polarization, and signal paths.
• Working knowledge of PCB and circuit design principles, with the ability to contribute to new designs or modifications of existing hardware; familiarity with PCB design tools such as Altium, KiCad, or similar.
• Practical experience applying design-for-test (DFT), design-for-manufacturing (DFM), and EMC/EMI considerations in circuit or PCB design.
• Experience with digital and analog circuit design, power electronics, microcontrollers, and embedded systems.
• Familiarity with communication protocols relevant to UAS platforms, such as SPI, I2C, UART, CAN, and MAVLink.
• Practical experience with RF and electronic test equipment, including multimeters, oscilloscopes, spectrum analyzers, logic analyzers, and power meters.
• Ability to read and interpret schematics, datasheets, and technical specifications for both internal and third-party hardware.
• Strong analytical skills, with the ability to evaluate hardware designs, identify tradeoffs, and propose practical improvements.
• Strong written and verbal communication skills, with the ability to produce clear design notes, test procedures, technical evaluations, and prototype documentation.
• Comfortable working hands-on with hardware in a lab/bench environment, including prototyping and rework.
• Ability to work cross-functionally with engineering, product, and sales teams.

Nice to Have

• Experience with UAV, robotics, or embedded-systems hardware, including flight controllers, video transmission systems, or ground-control interfaces.
• Familiarity with open-source flight controllers and firmware, such as PX4 and ArduPilot, and their configuration and tuning ecosystems.
• Experience integrating companion computers or onboard compute platforms.
• General understanding of defense, security, public safety, or government technology environments.

Paid Time Off

• 15 days of paid vacation annually.
• 5 personal/sick days per year.
• Leave accrues on a pro-rata basis from your start date.

Sine Engineering builds the technology behind reliable drone autonomy: communications, navigation, and control systems that enable coordinated multi-drone operations at scale. More than 200 UAV manufacturers rely on our technologies, and our solutions power many of the interceptor operations active today. Through our dual-use platform, we support civilian innovation while helping democratic nations strengthen their technological advantage.