Electrical Engineer, UAS Systems — Drone Hardware & RF

T3i, Inc.; San Antonio (TX); On-site; USD 60,000 - 90,000; Part time

Job summary

T3i, Inc. is seeking an experienced Electrical Engineer to own the electrical architecture of our unmanned drone systems, from concept to production. The role emphasizes hands-on bench work, integration, and rapid iteration to deliver reliable, field-ready electronics.

Responsibilities include designing flight controllers, power distribution, RF links, and sensor interfaces, plus collaboration with firmware engineers to ensure robust hardware/software interfaces and successful flight testing.

Qualifications

• 3-7 years hands-on electrical engineering experience.
• Proven experience building and debugging real hardware systems.
• Strong PCB design experience (multi-layer, mixed-signal, power electronics).
• Embedded systems and communication protocols experience (UART, SPI, I2C, CAN, PWM).
• Experience with drone systems or robotics.

Responsibilities

• Own electrical system design across flight controllers, ESCs, and power distribution.
• Design and bring up multi-layer PCBs for high-performance drone systems.
• Architect and integrate embedded electronics: MCUs, IMUs, GPS, RF links, and sensors.
• Debug hardware issues at the system level (power, EMI/EMC, signal integrity, RF).
• Work with firmware engineers to define hardware/software interfaces.
• Integrate and tune flight controller stacks (Betaflight, PX4, ArduPilot).
• Design and validate BLDC motor control systems and ESC architectures.
• Build, test, and iterate hardware rapidly using real-world feedback.
• Support environmental and flight testing (vibration, thermal, field use).
• Drive designs from prototype through production (DFM, test procedures).
• Evaluate new components and technologies and make practical implementation decisions.

Skills

PCB design

Embedded systems

Hardware debugging

Lab equipment

UART SPI I2C CAN PWM

Drone systems

Tools

Oscilloscope

Logic analyzers

Power supplies

Job description

T3i, Inc. is seeking an experienced Electrical Engineer to own the electrical architecture of our unmanned drone systems, from concept to production. The role emphasizes hands-on bench work, integration, and rapid iteration to deliver reliable, field-ready electronics.

Responsibilities include designing flight controllers, power distribution, RF links, and sensor interfaces, plus collaboration with firmware engineers to ensure robust hardware/software interfaces and successful flight testing.