FreezzFreezz

Location: Pisa (Italy)

  • RF & Antenna Engineer

    Help build the RF systems connecting space directly to everyday devices. Freezz is developing Friisat, an integrated satellite-connectivity platform designed to complement terrestrial mobile networks. Using satellites in Very Low Earth Orbit, Friisat aims to provide reliable, low-latency connectivity directly to personal and vehicular devices. We are looking for an RF & Antenna Engineer to contribute to the design, simulation, integration, and validation of the RF and antenna subsystems supporting the Friisat constellation.

    What You Will Do

    • Design and evaluate RF architectures for satellite payloads, gateways, user equipment, and associated test systems.
    • Support the development of antennas and antenna-array concepts suitable for space-based communications.
    • Perform RF link-budget, coverage, interference, propagation, and system-performance analyses.
    • Model antenna radiation patterns, gain, polarization, efficiency, impedance matching, and coupling effects.
    • Contribute to phased-array and beam-steering architectures in collaboration with DSP and FPGA engineers.
    • Select and evaluate RF components, including amplifiers, filters, mixers, oscillators, converters, and frequency-generation devices.
    • Simulate RF circuits and electromagnetic behaviour using industry-standard tools.
    • Define RF and antenna requirements, interfaces, verification methods, and acceptance criteria.
    • Plan and conduct laboratory measurements using VNAs, spectrum analysers, signal generators, power meters, and related equipment.
    • Support anechoic-chamber testing, hardware integration, environmental qualification, and troubleshooting.
    • Work closely with satellite-systems, telecommunications, mechanical, embedded-software, and network-engineering teams.
    • Prepare clear technical documentation and contribute to design reviews.

    What We Are Looking For

    • Degree in telecommunications, electrical engineering, RF engineering, electromagnetics, or a related discipline; or equivalent practical experience.
    • Strong understanding of RF and microwave engineering principles.
    • Experience designing or testing antennas, antenna arrays, or RF front ends.
    • Knowledge of link budgets, noise figures, linearity, phase noise, RF impairments, and interference analysis.
    • Experience with electromagnetic or RF simulation tools such as CST Studio Suite, Ansys HFSS, Keysight ADS, or equivalent.
    • Hands-on experience with RF laboratory equipment.
    • Ability to translate system-level communication requirements into RF and antenna specifications.
    • Clear analytical, documentation, and cross-functional communication skills.
    • Professional working proficiency in English.

    Valuable Additional Experience

    • Master’s degree in telecommunications, electrical engineering, RF engineering, electromagnetics, or a related discipline.
    • Phased-array antennas, digital beamforming, or hybrid beamforming.
    • Satellite communication.
    • Direct-to-Device connectivity, 5G New Radio and 3GPP Non-Terrestrial Networks.
    • RF hardware qualification and environmental testing.
    • SDR and FPGA-based communication systems.
    • EMC, EMI, thermal, radiation, or reliability considerations for space hardware.

    Why Join Us & Hiring Details

    You will work on a multidisciplinary satellite platform that brings together RF engineering, advanced signal processing, mobile networks, embedded systems, and spacecraft technology. Your work will directly influence the overall viability of the Friisat service.

    How to Apply

    • Please fill up the application form on this page.
    • Where relevant, candidates are encouraged to include examples of technical projects, publications, portfolios, Git repositories, or descriptions of systems they have helped design.
    • Freezz welcomes applicants from different backgrounds. Selection decisions are based on professional qualifications, experience, and the requirements of the position.
    • We review applications on a rolling basis and respond within 5 business days. We’re actively hiring and moving fast. If you’re a strong fit, expect to hear from us quickly.

  • Spacecraft Systems Lead Engineer

    Freezz is a dynamic, young high-tech space company operating across three core European locations (Switzerland, Italy, Spain). We’re strongly committed to delivery and rapid growth in the commercial satellite and space connectivity sector. We’re developing next-generation solutions in two core markets: Direct-to-Device (D2D) Connectivity and Friilink. We combine aerospace expertise with startup speed and deliver-first discipline. FRIISAT is Freezz’s flagship constellation programme—a large-scale Very Low Earth Orbit (VLEO) constellation delivering D2D connectivity across Europe and globally. The programme encompasses a Spacecraft Platform, Ground Infrastructure, and Payload & Services. The FRIISAT programme is co-funded by ESA’s IRIS² initiative and represents a critical step toward European strategic autonomy in satellite communications. You’ll drive spacecraft system engineering across the full lifecycle: from architecture definition through manufacturing, integration, verification, testing and launch preparation.

    What You Will Do

    • Spacecraft system engineering, system analyses and architecture definition.
    • Requirements management, Interface Control Documents (ICDs) and system budgets.
    • Cross-platform interface control: platform, payload, and external systems.
    • Mission and orbital analysis translation into spacecraft design requirements.
    • Mass, power, data, RF, thermal and other system budgets.
    • Thermal and structural design assessment; launch loads and environmental constraints.
    • Engineering trade-offs, system performance assessments and design optimisation.
    • COTS component selection, screening, testing and adaptation for space qualification.
    • Radiation, thermal-vacuum, vibration and EMC constraint management.
    • Design-to-cost, design-for-manufacturing and design-for-test principles.
    • Early prototyping, iterative testing and rapid hardware improvements.
    • Supplier coordination, technical documentation and design reviews.
    • Direct participation in Assembly, Integration, Verification and Test (AIT/AIV).

    What We Are Looking For

    • 3–6 years in satellite/spacecraft development (platform and payload experience valued).
    • Strong grasp of spacecraft system engineering: requirements, ICDs, budgets, trade-offs.
    • Solid understanding of mission analysis and orbital mechanics.
    • Hands-on experience with spacecraft thermal and mechanical design at system level.
    • Experience in hardware development, integration, verification and testing.
    • Full lifecycle spacecraft development knowledge from early design through manufacturing, AIT/AIV and launch.
    • Comfortable working across multiple engineering disciplines and with manufacturing teams.
    • Strong technical problem-solving and a hands-on, product-oriented mindset.
    • Professional working proficiency in English.
    • Degree in Aerospace, Electronics, Telecommunications, Mechanical Engineering or equivalent.
    • You combine strong spacecraft-level engineering capability with a hands-on approach. You’re equally comfortable working with requirements, ICDs and system budgets as you are discussing subsystem design with specialists or working directly with hardware, suppliers and test teams. You think in terms of production scalability, cost and schedule—not just performance. You want to move fast and build something real.

    Valuable Additional Experience

    • New Space or commercial satellite background, COTS adaptation and space qualification experience.
    • Mission analysis tools, spacecraft thermal or structural analysis, design-for-manufacturing.
    • Rapid prototyping, design-to-cost experience, small-series or serial production.
    • Telecommunications/RF payload knowledge, or launch campaign experience.

    Why Join Us & Hiring Details

    • Ship real hardware quarterly, not every three years.
    • Influence mission architecture from day one—no committee overhead.
    • Work with a lean, focused engineering team.
    • Based in Tuscany with hybrid flexibility.
    • Part of a European New Space success story backed by ESA and EU programmes.
    • Hiring Timeline: We’re hiring now with a fast-track process. Target decision turnaround: 2–3 weeks from application to offer (subject to interview scheduling). We offer flexibility on work location during onboarding: Hybrid or remote start with transition to hybrid/regional HQ. Relocation support is available. After onboarding, hybrid work is standard.
    • Compensation: Competitive salary in the high range for the region, commensurate with experience and proven track record. Benefits include flexible working arrangement, professional development support, and equity participation in Freezz’s growth. Stock options plan details are currently being finalized and will be shared during the offer stage.

    How to Apply

    • Please fill up the application form on this page.
    • Where relevant, candidates are encouraged to include examples of technical projects, publications, portfolios, Git repositories, or descriptions of systems they have helped design.
    • Freezz welcomes applicants from different backgrounds. Selection decisions are based on professional qualifications, experience, and the requirements of the position.
    • We review applications on a rolling basis and respond within 5 business days. We’re actively hiring and moving fast. If you’re a strong fit, expect to hear from us quickly.

  • Hardware Electrical Engineer

    Develop Innovative satellite platforms for telecom constellations. For our locations in Italy and Switzerland Freezz is looking for a versatile Electrical Hardware Engineer to develop units and subsystems for Friisat and other commercial products. The role focuses primarily on design, analyses and test of electrical and electronic hardware for the Friisat spacecraft, from schematic through board and unit-level testing. This position is well suited to an engineer who enjoys working across design development and eventually test hardware at all levels and wants to contribute at multiple levels of a complete the full satellite system.

    What Will You Do

    You’ll design, analyse and test electrical and electronic hardware for the FRIISAT spacecraft, from schematic through board and unit-level testing. Working closely with systems engineering, AIT and manufacturing partners, you’ll be responsible for:

    • Electronics Design: Power conditioning and distribution circuits: DC/DC conversion, regulation, protection and power switching.
    • Driver design for spacecraft loads and actuators.
    • Sensor interface electronics: signal conditioning, acquisition front-ends, voltage/current/temperature sensing.
    • Actuator electronics: drive and control circuits and their interfaces to platform units.
    • Electrical design & CAD: Schematic capture and PCB layout with electrical CAD tools.
    • Component selection, including COTS parts, with screening and qualification support.
    • Design-for-manufacturing and design-for-test for serial production.
    • Analyses: Part stress and derating analysis.
    • Worst Case Analysis (WCA).
    • FMECA and reliability prediction.
    • Other analysis and simulations [autocad or other tools].
    • Test & AIT: EMC testing (conducted and radiated emissions and susceptibility) at board and unit level.
    • Board and unit-level AIT: bring-up, functional and performance testing, test benches and EGSE.
    • Test plans, procedures and test reports.
    • TVAC and Environmental test support.

    What We Are Looking For

    • Degree in Electronic or Electrical Engineering, or equivalent.
    • 1+ year in spacecraft electrical/electronic engineering.
    • Experience in analogue and digital electronics design.
    • Experience in schematics and PCB design (schematic capture and layout).
    • Familiarity with part stress, derating and worst-case analysis.
    • Hands-on in the lab: board bring-up, test equipment, EMC testing.
    • Product-oriented, hands-on mindset; comfortable moving between design, analysis and hardware.
    • Tools: electrical CAD (schematic and PCB layout), circuit simulation.
    • Strong problem-solving, documentation, and teamwork skills.
    • Professional working proficiency in English.

    Valuable Additional Experience

    • New Space or small-satellite background.
    • COTS electronics for space, control electronics, microcontroller basics some software experience.
    • EMC design for spacecraft.
    • Specific assembly techniques, manufacturing processes and materials for high-temperature-range solutions.
    • Design for large-scale production (design-to-cost).
    • Italian/German/French/Spanish language skills.

    Why Join Us & Hiring Details

    At Freezz you won’t work on a narrow slice of the design: you’ll get your hands on the electronics of a satellite built to fly – and to fly soon, taking your boards from schematic to tested hardware. We take a new approach to building spacecraft: short design-build-test loops, real hardware on the bench early, and decisions made by the people who do the work, from day one and without committee overhead. That means a steep, fast learning curve. You’ll see your schematic become a board, your board go through bring-up and EMC test, and your design head to orbit. And you’ll learn it in a lean, enthusiastic team where building satellites is serious work and real fun, that’s the added value we offer. All of this as part of a European New Space success story backed by ESA and EU programmes.

    How to Apply

    • Please fill up the application form on this page.
    • Where relevant, candidates are encouraged to include examples of technical projects, publications, portfolios, Git repositories, or descriptions of systems they have helped design.
    • Freezz welcomes applicants from different backgrounds. Selection decisions are based on professional qualifications, experience, and the requirements of the position.
    • We review applications on a rolling basis and respond within 5 business days. We’re actively hiring and moving fast. If you’re a strong fit, expect to hear from us quickly.

  • Mechanical / Thermal Engineer

    Develop Innovative satellite platforms for telecom constellations. You’ll own the mechanical and thermal design of the FRIISAT spacecraft, from concept through analysis, test and production. Working closely with systems engineering, payload, AIT and manufacturing partners, you’ll be responsible for mechanical and thermal architecture.

    What You Will Do

    • Mechanical design & analysis: Spacecraft structure and mechanical architecture: primary/secondary structure, equipment accommodation, deployables and interfaces.
    • 3D CAD modelling, drawings and configuration control of the mechanical design.
    • Finite Element modelling and structural analysis: static, modal, sine, random vibration and shock.
    • Launch loads assessment, launcher interface and stack/dispenser compatibility.
    • Margin of safety and stress analyses, mass properties and mechanical budgets.
    • Design-for-manufacturing and design-for-assembly for serial production.
    • Thermal design, simulation & analysis: Thermal architecture and thermal control design (passive and active): radiators, coatings, MLI, heaters, heat pipes, thermal interfaces.
    • Thermal mathematical modelling (geometric and lumped-parameter) and orbital thermal simulation.
    • Hot/cold case definition and analysis for the VLEO environment, including atomic-oxygen effects on coatings and materials.
    • Thermal budgets and temperature predictions for platform and payload units.
    • Test activities: Thermal vacuum (TVAC) and thermal balance testing: test definition, predictions, execution support and correlation.
    • Vibration testing (sine, random) and shock testing: test specification, predictions and post-test evaluation.
    • Coupled Load Analysis (CLA) with the launcher authority: model delivery, load cycles and results assessment.
    • Launch campaign support: spacecraft preparation, integration on the launcher and mechanical/thermal launch-site activities.
    • Test plans, procedures and test reports.
    • Across both: Requirements, interface definition (mechanical and thermal ICDs) and design reviews.
    • Trade-offs for cost, mass and producibility; COTS accommodation and qualification support.
    • Supplier coordination and hands-on participation in AIT/AIV (vibration, shock, TVAC campaigns).
    • Technical documentation and verification reports.

    What We Are Looking For

    • Degree in Mechanical or Aerospace Engineering, or equivalent.
    • 1+ year in spacecraft mechanical and/or thermal engineering.
    • Experience in spacecraft structural design and FE analysis.
    • Experience in spacecraft thermal design and thermal simulation.
    • Hands-on with environmental test campaigns to some level (vibration, shock, thermal vacuum).
    • Working knowledge of mechanical and thermal engineering standards.
    • Product-oriented, hands-on mindset; comfortable moving between analysis, design and hardware.
    • Tools: ESATAN-TMS (thermal), ANSYS (FEM), CAD tools.
    • Strong problem-solving, documentation, and teamwork skills.
    • Professional working proficiency in English.

    Valuable Additional Experience

    • Mission analysis experience.
    • New Space or small-satellite background, VLEO/LEO environment experience (atomic oxygen, drag).
    • Serial or small-series production, deployable mechanisms.
    • COTS accommodation and space qualification.
    • Coupled structural-thermal analysis.
    • Italian/German/French/Spanish language skills.

    Why Join Us & Hiring Details

    At Freezz you won’t work on a narrow slice of the spacecraft: you’ll get your hands on both the structure and the thermal design of a satellite built to fly – and to fly soon. We take a new approach to building spacecraft: short design-analysis-test loops, real hardware on the bench early, and decisions made by the people who do the work, from day one and without committee overhead. That means a steep, fast learning curve. You’ll see your analysis turn into hardware, your hardware go through test, and your design head to orbit. And you’ll learn it in a lean, enthusiastic team where building satellites is serious work and real fun, that’s the added value we offer. All of this as part of a European New Space success story backed by ESA and EU programmes.

    How to Apply

    • Please fill up the application form on this page.
    • Where relevant, candidates are encouraged to include examples of technical projects, publications, portfolios, Git repositories, or descriptions of systems they have helped design.
    • Freezz welcomes applicants from different backgrounds. Selection decisions are based on professional qualifications, experience, and the requirements of the position.
    • We review applications on a rolling basis and respond within 5 business days. We’re actively hiring and moving fast. If you’re a strong fit, expect to hear from us quickly.

  • Software Engineer

    Develop software across spacecraft, FPGA, and commercial platforms. For our locations in Italy and Switzerland Freezz is looking for a versatile Software Engineer to develop software for Friisat and other commercial products. The role focuses primarily on C and C++ development across FPGA-based platforms, payload computers, and onboard computers. Depending on your experience and project requirements, you may also contribute to FPGA functions, higher-level applications, development tools, networked services, and software for other Freezz communication products. This position is well suited to an engineer who enjoys working across hardware and software boundaries and wants to contribute at multiple levels of a complete system.

    What You Will Do

    • Design, implement, test, and maintain software primarily in C and C++.
    • Develop functions for payload computers, onboard computers, embedded processors, and FPGA-based platforms.
    • Help determine how functionality should be divided between FPGA logic, embedded processors, and higher-level software.
    • Implement control, configuration, monitoring, telemetry, telecommand, and data-processing functions.
    • Develop software that interfaces with FPGAs, communication payloads, RF devices, sensors, and other hardware components.
    • Build efficient data paths for moving, buffering, processing, and storing high-rate information.
    • Develop software for embedded Linux, real-time operating systems, and resource-constrained environments.
    • Develop hardware-abstraction layers, device interfaces, libraries, services, and reusable software components.
    • Implement system-control logic, state machines, scheduling, timing, logging, diagnostics, and fault-handling mechanisms.
    • Create unit, integration, regression, simulation, and hardware-in-the-loop tests.
    • Debug complex interactions between software, processors, FPGA logic, communication algorithms, and physical hardware.
    • Profile and optimise software for performance, latency, memory use, reliability, and power consumption.
    • Contribute to higher-level applications, APIs, network services, automation tools, and user-facing software when required.
    • Support software development for other Freezz commercial products beyond the Friisat programme.
    • Participate in architecture discussions, code reviews, technical documentation, continuous integration, and release management.
    • Collaborate with FPGA, DSP, RF, telecommunications, networking, electronics, and systems engineers.

    What We Are Looking For

    • Degree in computer science, software engineering, computer engineering, electronics, telecommunications, or a related discipline; or equivalent practical experience.
    • Strong programming skills in C and C++.
    • Experience developing reliable software for Linux, embedded Linux, an RTOS, or another systems-level environment.
    • Good understanding of software architecture, data structures, concurrency, memory management, and multithreaded programming.
    • Experience working with processors, SoCs, FPGA-based platforms, or hardware-connected systems.
    • Understanding of hardware/software interfaces and low-level communication mechanisms.
    • Familiarity with networking, inter-process communication, and communication protocols.
    • Experience debugging and testing software in environments that combine hardware and software.
    • Familiarity with Git, build systems, code reviews, automated testing, and continuous integration.
    • Ability to work across different abstraction levels; from hardware-facing code to higher-level applications.
    • Strong problem-solving, documentation, and teamwork skills.
    • Professional working proficiency in English.

    Valuable Additional Experience

    • AMD/Xilinx, RFSoC, Zynq, or comparable platforms.
    • Embedded Linux development using Yocto, Buildroot, or similar systems.
    • Linux related development, device drivers, or board-support packages.
    • DMA, PCIe, Ethernet, AXI, SPI, I²C, UART, CAN, SpaceWire, or other hardware interfaces.
    • Python or another language used for automation, testing, simulation, or higher-level services.
    • Network programming, distributed systems, APIs, databases, or cloud-connected applications.
    • Bootloaders, secure boot, cryptography, remote updates, or embedded cybersecurity.
    • Spacecraft software, communication payloads, avionics, automotive systems, robotics, or other reliability-focused applications.
    • Fault-tolerant software, redundancy, health monitoring, or recovery mechanisms.

    Why Join Us & Hiring Details

    You will have the opportunity to work across a broad technology stack, from FPGA-connected hardware and embedded computers to higher-level applications and commercial communication products. Rather than being limited to one narrow software layer, you will help decide where functions should run, implement them on the most appropriate platform, and participate in their integration into complete operational systems.

    How to Apply

    • Please fill up the application form on this page.
    • Where relevant, candidates are encouraged to include examples of technical projects, publications, portfolios, Git repositories, or descriptions of systems they have helped design.
    • Freezz welcomes applicants from different backgrounds. Selection decisions are based on professional qualifications, experience, and the requirements of the position.
    • We review applications on a rolling basis and respond within 5 business days. We’re actively hiring and moving fast. If you’re a strong fit, expect to hear from us quickly.

  • Telecommunications Engineer: 5G/NTN Networks

    Shape the integration of satellite and terrestrial mobile networks. Freezz is developing Friisat, an integrated satellite-connectivity platform designed to complement terrestrial mobile networks. Using satellites in Very Low Earth Orbit, Friisat aims to provide reliable, low-latency connectivity directly to personal and vehicular devices. For our locations in Italy and Switzerland we are looking for a 5G/NTN Network Engineer to design, simulate, integrate, and validate the network architecture behind the Friisat service.

    What You Will Do

    • Define end-to-end 5G/NTN architectures covering space, ground, radio-access, transport, and core-network segments.
    • Translate service and coverage objectives into network requirements, interfaces, configurations, and operational procedures.
    • Analyse 3GPP specifications and identify the features, constraints, and implementation choices relevant to Friisat.
    • Design network behaviour for registration, authentication, mobility, paging, handover, routing, and service continuity.
    • Address NTN-specific effects including long and variable delays, Doppler, satellite movement, moving cells, timing relationships, and intermittent visibility.
    • Support the development tasks in the area of gNB, payload compute, service and feeder link.
    • Contribute to NTN-RAN, and 5G Core integration.
    • Model network capacity, coverage, availability, latency, traffic demand, and quality of service.
    • Define resource-management, beam-management, mobility-management, and network-selection strategies.
    • Develop network simulations, prototypes, test plans, and system-level validation environments.
    • Analyse protocol traces and troubleshoot issues across RRC, PDCP, RLC, MAC, PHY, transport, and core-network functions.
    • Work with RF, DSP, embedded-software, cloud, security, and satellite-systems teams.
    • Support demonstrations, partner integrations, field trials, and interoperability testing.
    • Support spectrum coordination or telecommunications regulatory requirements related activities.
    • Maintain technical documentation and contribute to standards and design reviews.

    What We Are Looking For

    • Master’s degree in telecommunications, networking, electrical engineering, computer engineering, or a related field; or equivalent practical experience.
    • Strong knowledge of 4G/5G architecture and 5G New Radio.
    • Understanding of RAN functions, protocol layers, mobility, radio-resource management, QoS, and 5G Core interactions.
    • Practical knowledge of 3GPP NTN architecture and satellite-network constraints.
    • Experience with network design, simulation, integration, optimisation, or protocol testing.
    • Ability to interpret standards and convert them into implementable system requirements.
    • Familiarity with IP networking, routing, transport protocols, security, and network observability.
    • Strong troubleshooting and systems-thinking skills.
    • Professional working proficiency in English.

    Valuable Additional Experience

    • 3GPP Release 17 or later NTN specifications.
    • Direct-to-Device or Direct-to-Cell satellite services.
    • Open-source or commercial 5G stacks and network simulators.
    • Private 5G networks, virtualised RAN, or cloud-native 5G Core deployments.
    • Network slicing, edge computing, service orchestration, or software-defined networking.
    • Satellite gateways, regenerative payloads, transparent payloads, or inter-satellite links.
    • Python, C++, packet analysis, network automation, or data-analysis tools.
    • Telecommunications standards, spectrum regulation, and operator interoperability.

    Why Join Us & Hiring Details

    You will help define how a new satellite constellation behaves as part of the wider mobile ecosystem. The role offers the opportunity to influence architecture, standards implementation, system performance, and the real-world integration of terrestrial and non-terrestrial networks.

    How to Apply

    • Please fill up the application form on this page.
    • Where relevant, candidates are encouraged to include examples of technical projects, publications, portfolios, Git repositories, or descriptions of systems they have helped design.
    • Freezz welcomes applicants from different backgrounds. Selection decisions are based on professional qualifications, experience, and the requirements of the position.
    • We review applications on a rolling basis and respond within 5 business days. We’re actively hiring and moving fast. If you’re a strong fit, expect to hear from us quickly.

  • Telecommunications Engineer: Low-PHY, DSP & FPGA/SDR

    Develop the signal-processing technology behind direct satellite connectivity. Freezz is developing Friisat, an integrated satellite-connectivity platform designed to complement terrestrial mobile networks. Using satellites in Very Low Earth Orbit, Friisat aims to provide reliable, low-latency connectivity directly to personal and vehicular devices. For our locations in Italy and Switzerland we are looking for a Telecommunications Engineer with strong expertise in Low-PHY implementation, digital signal processing, beamforming, and FPGA/SDR development.

    What You Will Do

    • Design and implement Low-PHY algorithms for satellite and terrestrial wireless communication systems.
    • Develop solutions for synchronisation, modulation and demodulation, channel estimation, equalisation, coding, decoding, and link adaptation.
    • Design and optimise precoding, beamforming, beam-management, and spatial signal-processing algorithms.
    • Address satellite-specific challenges such as Doppler shift, propagation delay, time and frequency offsets, moving coverage areas, and rapidly changing channels.
    • Create floating-point and fixed-point models using MATLAB, Simulink, Python, C, or C++.
    • Convert algorithmic models into efficient FPGA implementations.
    • Develop, integrate, and validate FPGA logic using VHDL, Verilog, SystemVerilog, HLS, or comparable technologies.
    • Build SDR-based prototypes for rapid algorithm validation and over-the-air testing.
    • Optimise designs for throughput, latency, FPGA resources, memory use, power consumption, and numerical accuracy.
    • Integrate PHY components with RF front ends, embedded processors, higher protocol layers, and network-control systems.
    • Define test vectors, automated verification procedures, and hardware-in-the-loop test environments.
    • Investigate performance issues across algorithms, firmware, RF hardware, and network configuration.
    • Contribute to Friisat’s technical roadmap and system-design reviews.

    What We Are Looking For

    • Degree in telecommunications, electrical engineering, signal processing, computer engineering, or a related discipline; or equivalent practical experience.
    • Strong knowledge of digital communications and DSP fundamentals.
    • Practical understanding of OFDM, MIMO, channel coding, channel estimation, synchronisation, equalisation, and digital beamforming.
    • Experience implementing DSP algorithms on FPGA or SDR platforms.
    • Proficiency with at least one HDL and one modelling or programming environment.
    • Understanding of fixed-point design, clock-domain crossing, high-speed data paths, timing closure, and FPGA resource optimisation.
    • Working knowledge of 5G NR radio technology, RAN architecture, and 3GPP NTN concepts.
    • Ability to analyse a complete communication chain rather than treating PHY implementation in isolation.
    • Professional working proficiency in English.

    Valuable Additional Experience

    • Master’s degree in telecommunications, electrical engineering, signal processing, computer engineering, or a related discipline; or equivalent practical experience.
    • Experience with AMD/Xilinx, RFSoC, USRP.
    • MATLAB/Simulink HDL workflows, GNU Radio, or custom SDR frameworks.
    • Adaptive beamforming, phased arrays, precoding, or interference cancellation.
    • 3GPP Release 17 or later NTN features.
    • Satellite channel modelling and link-budget analysis.
    • Fronthaul interfaces, Low-PHY/High-PHY partitioning, or accelerator architectures.
    • Embedded Linux, device drivers, or FPGA – CPU integration.
    • CI pipelines and automated verification for FPGA or DSP development.

    Why Join Us & Hiring Details

    This role sits at the centre of Friisat’s technology stack. You will take communication concepts from mathematical models to real-time hardware and help solve the unique signal-processing challenges of connecting fast-moving satellites directly to terrestrial devices.

    How to Apply

    • Please fill up the application form on this page.
    • Where relevant, candidates are encouraged to include examples of technical projects, publications, portfolios, Git repositories, or descriptions of systems they have helped design.
    • Freezz welcomes applicants from different backgrounds. Selection decisions are based on professional qualifications, experience, and the requirements of the position.
    • We review applications on a rolling basis and respond within 5 business days. We’re actively hiring and moving fast. If you’re a strong fit, expect to hear from us quickly.