RF Engineer jobs in United States
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Specter Ai · 2 months ago

RF Engineer

positionSan Francisco
timeFull-time
remoteOnsite
seniorityLead/Staff

Specter is building a software-defined control plane for the physical world, aiming to empower American businesses with enhanced perception of their physical assets. The Lead RF Engineer will be responsible for designing and developing the SDR architecture that serves as the backbone for their distributed sensing network, overseeing the entire RF system design process from concept to deployment.

Responsibilities

Architect and develop Specter’s modular SDR platform, integrating multi-node mesh networking with real-time software control
Define RF system and software requirements across transceiver, front-end, and antenna subsystems
Lead system-level trades to determine optimal network topology, frequency bands, and modulation schemes within software-defined constraints
Design and prototype analog front-end components (LNAs, PAs, filters, matching networks) with tight integration to digital baseband and firmware
Develop automated RF test infrastructure and validation workflows (VNA, spectrum analyzer, OTA testing) with software-driven test harnesses
Collaborate with firmware, networking, and cloud teams to integrate PHY-layer and OpenWRT-based mesh protocols into the broader control plane
Drive DFM, certification, and production-scale RF test automation

Qualification

Software-defined radioRF system designAnalog front-end design802.11 protocolsRF simulation toolsHands-on experimental mindsetTeam leadership

Preferred

Led RF or communications system development from concept to production, including firmware and software integration
Deep experience with software-defined radios, analog/RF front-end design, and embedded networking systems (<3 GHz)
Strong understanding of 802.11 physical layer protocols, OpenWRT, and real-time embedded Linux networking
Skilled with RF simulation and measurement tools (ADS, HFSS, MATLAB, VNA, spectrum analyzer) and software test automation
Experience bringing connected radio products through FCC certification, DVT, and production ramp
Hands-on, experimental mindset - fluent moving between low-level firmware, signal processing, and physical layer hardware

Company

Specter Ai

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Revolutionising the legal industry
people-size2-10 employees

Funding

Current Stage
Early Stage
Company data provided by crunchbase