Loft Orbital

Turnkey space missions via standardized satellites

Radio Frequency Systems Engineer

Telecommunications EngineeringPosted on Nov 9

Full-timeToulouse, FranceNo salary listed

About the Job

Requirements

At least 2 years of experience in radio frequency systems engineering, subsystem integration, or a closely related field.
Proven experience with radio frequency system integration, debugging, testing, and performance analysis.
Experience with signal processing algorithms, including the ability to model, analyze, or evaluate radio frequency signal processing approaches.
Knowledge of radio frequency communication systems and subsystems, particularly S-band and X-band communications.
Experience with radio frequency link budget calculations and system-level performance analysis.
Hands-on experience with radio frequency hardware, test equipment, and subsystem validation.
Ability to independently drive technical activities and collaborate across systems and software integration efforts.
Strong communication, problem-solving, and teamwork skills.

Responsibilities

Contribute to the design and development of radio frequency systems for satellite connectivity and payload applications, including architecture, requirements, and technical trade-offs.
Perform radio frequency link budget analysis and evaluate subsystem performance across S-band, X-band, and inter-satellite link applications.
Develop and optimize signal processing algorithms for radio frequency payloads using MATLAB and related simulation tools.
Support radio frequency payload development across the signal chain, from antennas and radio frequency frontends to analog-to-digital converters and software-defined radio systems, including signal detection and geolocation.
Collaborate with field-programmable gate array, embedded software, and systems teams to translate radio frequency requirements into implementable solutions and integrate signal processing algorithms.
Define and track system requirements, documenting technical decisions, integration activities, and verification results.
Support radio frequency testing, hardware integration, troubleshooting, and performance verification through assembly, integration, and test and in-orbit commissioning.
Work across engineering and assembly, integration, and test teams to drive successful development and integration of radio frequency systems and payloads.

Desired Qualifications

Experience with software-defined radio architectures and development.
Familiarity with field-programmable gate array-based signal processing, including experience working with field-programmable gate array teams to implement digital signal processing algorithms or intellectual property blocks.
Knowledge of key software-defined radio components and technologies, including channelizers, analog-to-digital converters, and digital-to-analog converters.
Experience using MATLAB for signal processing, modeling, simulation, or algorithm development.
Experience translating system-level radio frequency and signal processing requirements into field-programmable gate array or embedded software implementation requirements.
Experience with antenna systems, radio frequency frontends, and radio frequency payload architecture.
Familiarity with radio frequency geolocation, signal detection, spectrum analysis, or signals intelligence-related applications.
Experience with radio frequency testing, integration, and performance verification in an aerospace or satellite environment.

Wanna join the adventure?

Loft Orbital is making space simple. We build and operate reliable, shareable satellites that give customers a faster, simpler path to orbit. By combining flight-proven spacecraft platforms with our own hardware and software, we make it easier to deploy missions in space.

As an RF Systems Engineer, you'll contribute to the design, development, and integration of communication systems across our satellite connectivity and next-generation RF payload programs. You'll work on RF system architecture, signal processing algorithms, and performance analysis, collaborating closely with FPGA, embedded software, systems, and hardware engineers to develop and integrate complex RF technologies.

This role is ideal for an engineer who enjoys working at the intersection of RF hardware and signal processing, solving challenging technical problems, and seeing their work go from initial design to in-orbit operation.

About this Role:

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.

Must Haves:

2+ years of experience in Radio Frequency (RF) systems engineering, subsystem integration, or a closely related field.
Proven experience with RF system integration, debugging, testing, and performance analysis.
Experience with signal processing algorithms, including the ability to model, analyze, or evaluate RF signal processing approaches.
Knowledge of RF communication systems and subsystems, particularly S-band and X-band communications.
Experience with RF link budget calculations and RF system-level performance analysis.
Hands-on experience with RF hardware, test equipment, and subsystem validation.
Demonstrated ability to independently drive technical activities and collaborate across system and software integration efforts.
Excellent communication, problem-solving, and teamwork skills.

Nice to Haves:

Experience with Software-Defined Radio (SDR) architectures and development.
Familiarity with FPGA-based signal processing, including experience working with FPGA teams to implement digital signal processing algorithms or IP blocks.
Knowledge of key SDR components and technologies, including channelizers, analog-to-digital converters (ADC), and digital-to-analog converters (DAC).
Experience using MATLAB for signal processing, modeling, simulation, or algorithm development.
Experience translating system-level RF and signal processing requirements into FPGA or embedded software implementation requirements.
Experience with antenna systems, RF frontends, and RF payload architecture.
Familiarity with RF geolocation, signal detection, spectrum analysis, or SIGINT-related applications.
Experience with RF testing, integration, and performance verification in an aerospace or satellite environment.

Some of Our Awesome Benefits:

Equity, we want you to have an active role in our success
Up to 35 days of Paid Time Off (vacations & RTT ) and flexible working hours, we want you to be at your best
Health and life insurance, we care about your health
Lunch Vouchers, because let’s be honest, we love food! (we even have a slack channel about it #loft-gourmand)
Cross-office travel opportunities between San Francisco, Colorado, and Toulouse to learn from our differences
Company and team off-sites and many other events to work & celebrate together
Relocation assistance to Toulouse when applicable

*Research shows that while men apply to jobs where they meet an average of 60% of the criteria, women and other underrepresented people tend to only apply when they meet 100% of the qualifications. At Loft, we value respectful debate and people who aren’t afraid to challenge assumptions. We strongly encourage you to apply, even if you don’t check all the boxes.

Who We Are

Loft: Space Made Simple.

Founded in 2017, Loft provides governments, companies, and research institutions with a fast, reliable, and simple way to deploy missions in orbit.

We integrate, launch, and operate spacecraft, offering end-to-end missions as a service across Earth observation, IoT connectivity, on-orbit AI, national security missions, and more. Leveraging our existing space infrastructure and an extensive inventory of satellite buses, Loft is reducing years-long integration and launch timelines to months. With more than 30 missions flown, Loft’s flight heritage and proven technologies enable customers to focus on their mission objectives.

With a growing fleet on track to reach 30 satellites by 2027, we are scaling up quickly across our offices in San Francisco, CA | Golden, CO | and Toulouse, France to meet accelerating demand for space infrastructure.

As an international company your resume will be reviewed by people across our offices so please attach a copy in English.

About the Company

Loft Orbital

Turnkey space missions via standardized satellites

Loft Orbital provides space infrastructure as a service, offering turnkey access to satellite missions. It maintains an inventory of satellite buses and runs scheduled quarterly launches, enabling clients to deploy missions quickly without managing the technical details. The company handles all mission engineering, operations, and logistics, using identical satellite hardware for each mission to maximize flight heritage and reduce technical risk. Its payload-agnostic technology can support a wide range of payloads on a standard bus, giving it flexibility to serve diverse customers. Loft Orbital's model centers on delivering end-to-end space missions as a service, charging clients for deployment, operation, and the ongoing support needed to build and scale satellite constellations.

Company size: 201-500
Company stage: Series C
Total funding: $344M
Headquarters: San Francisco, CA
Founded: 2016

Recently Posted Jobs

Explore more opportunities at Loft Orbital

See more jobs