Selby Jennings is hiring: Radio Frequency Engineer in Austin

A leading global trading firm and market maker is building custom, high-performance hardware systems that sit directly in the critical path of its infrastructure. This is a rare opportunity to work in an environment where hardware performance directly impacts business outcomes, and where engineers have true ownership from concept through deployment.

You’ll design and build bespoke RF systems, solving challenging, real-world problems at the intersection of hardware, systems, and infrastructure-not maintaining legacy designs or working on commoditized products.

What you'll do

Design, build, and bring up custom RF hardware and PCBAs

Develop HF transmit and receive front ends (LNAs, filters, matching networks, amplifiers)

Characterize and debug RF systems end‑to‑end in real‑world environments

Create and execute test plans and system‑level validation

Partner with software, infrastructure, and network teams to deploy systems at scale

Own designs from initial concept through production

Ensure compliance with regulatory and safety requirements

What makes this role unique

High impact: performance matters at a business level

Lean, high‑caliber team: strong engineering culture and high talent density

What we're looking for

BS in Electrical or Computer Engineering (MS/PhD preferred)

3+ years of hands‑on RF design experience

Experience with RF front‑end design (LNAs, filters, matching networks, amplifiers)

Strong understanding of: Gain, noise figure, linearity, stability, isolation

Familiarity with EMI/EMC debugging and compliance

Experience with PCBA design and system integration

Comfortable using RF lab equipment and basic Python for testing/automation

Nice to have

Microwave RF or antenna experience

RF simulation tools (ADS, AWR, HFSS, CST)

FPGA or microcontroller exposure

Experience working with vendors or manufacturing partners

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