RF Systems Engineer — Satellite SDR & Connectivity

Loft Orbital; Toulouse; On-site; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Equity in Loft Orbital

Up to 35 days PTO (vacation & RTT)

Health and life insurance

Lunch vouchers

Relocation assistance to Toulouse

Cross-office travel opportunities (SF,

Colorado, Toulouse

Team off-sites

Job summary

Loft Orbital is building reliable, shareable satellites to simplify access to orbit. The RF Systems Engineer will design and analyze RF systems for satellite connectivity, perform link-budget analyses across S- and X-band, and develop signal processing algorithms in MATLAB.

You’ll work with FPGA, embedded software, and systems teams to translate RF needs into implementable solutions. The role emphasizes hands-on hardware collaboration, testing, and integration across the RF chain, with

Qualifications

• 2+ years of experience in RF systems engineering or a closely related field.
• Experience with RF system integration, debugging, testing, and performance analysis.
• Knowledge of RF communication systems and subsystems, particularly S-band and X-band.
• Experience with RF link budget calculations and RF system-level performance analysis.

Responsibilities

• Contribute to the design and development of RF systems for satellite connectivity and payload applications, including architecture, requirements, and technical trade-offs.
• Perform RF link budget analysis and evaluate subsystem performance across S-band, X-band, and inter-satellite link (ISL) applications.
• Develop and optimize signal processing algorithms for RF payloads using MATLAB and related simulation tools.
• Support RF payload development across the signal chain, from antennas and RF frontends to ADCs and SDR systems, including signal detection and geolocation.
• Collaborate with FPGA, embedded software, and systems teams to translate RF requirements into implementable solutions and integrate signal processing algorithms.
• Define and track system requirements, documenting technical decisions, integration activities, and verification results.
• Support RF testing, hardware integration, troubleshooting, and performance verification through AIT and in-orbit commissioning.
• Work across engineering and AIT teams to drive successful development and integration of RF systems and payloads.

Skills

RF systems engineering

Subsystem integration

Signal processing

MATLAB

SDR architectures

FPGA development

ADC/DAC knowledge

Antenna systems

Tools

MATLAB

FPGA toolchain

RF test equipment

Job description

Loft Orbital is building reliable, shareable satellites to simplify access to orbit. The RF Systems Engineer will design and analyze RF systems for satellite connectivity, perform link-budget analyses across S- and X-band, and develop signal processing algorithms in MATLAB.

You’ll work with FPGA, embedded software, and systems teams to translate RF needs into implementable solutions. The role emphasizes hands-on hardware collaboration, testing, and integration across the RF chain, with