SJ
RF System Engineer
Accepting applicationsSelby Jennings · Austin, TX
Full-Time Mid_senior FPGAPythonRFaiasic
Posted
2d ago
Category
Design
Experience
Mid_senior
Country
United States
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
End‑to‑end ownership: idea → hardware → production
High impact: performance matters at a business level
Non‑repetitive work: nearly every system is custom‑built
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
Show more Show less
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
End‑to‑end ownership: idea → hardware → production
High impact: performance matters at a business level
Non‑repetitive work: nearly every system is custom‑built
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
Show more Show less