RF communication Sr. Engineer

Key Responsibilities
1. RF Communication System Design
Design RF communication architecture for UAVs and Ground Control Stations.
Develop long-range command, control, telemetry and payload data links.
Select RF transceivers, amplifiers, filters, antennas, connectors and other RF components.
Work on communication links for different UAV ranges and operating environments.
Perform RF link-budget calculations and system-level RF analysis.
2. FHSS / Secure Communication
Design and integrate Frequency Hopping Spread Spectrum (FHSS) communication systems.
Develop frequency-hopping schemes and synchronization mechanisms.
Work on secure and encrypted communication links.
Experience with AES-128/AES-256 or equivalent encryption is desirable.
Understand techniques for improving communication reliability in congested and contested RF environments.
3. SDR Development
Work with Software Defined Radio (SDR) platforms.
Develop and test SDR-based communication systems.
Hands-on experience with platforms such as USRP, ADALM-Pluto, HackRF, LimeSDR or equivalent is preferred.
Experience with GNU Radio, MATLAB/Simulink or similar tools.
Develop/modify PHY and communication protocols where required.
4. Long-Range UAV Communication
Develop communication links with 10–50+ km range, depending on application.
Optimize communication systems for UAV altitude, antenna position, terrain and operating environment.
Work on high-reliability telemetry and command links.
Experience with 900 MHz, 1.2 GHz, 2.4 GHz, 5.8 GHz or other suitable RF bands is desirable.
5. Mesh & Swarm Communication
Design and integrate mesh/networked communication between multiple UAVs.
Work on UAV-to-UAV and UAV-to-GCS communication.
Understand dynamic routing, network topology and self-healing networks.
Experience with swarm communication and multi-UAV networking will be a major advantage.
6. Anti-Jamming / EW Awareness
Understand RF interference, jamming, spoofing and spectrum congestion.
Develop communication systems with improved resistance to interference.
Work on frequency agility, adaptive channel selection and link-quality monitoring.
Experience with EW-resistant communication systems, spectrum sensing or anti-jamming techniques is highly desirable.
7. Antenna & RF Hardware
Select and integrate omnidirectional and directional antennas for UAVs.
Understand antenna gain, VSWR, impedance matching, polarization and radiation patterns.
Work with RF cables, connectors, filters, LNAs, PAs and RF switches.
Perform antenna placement and RF coexistence analysis on drones.
8. Drone System Integration
Integrate RF communication systems with:
Flight Controller
Companion Computer
GCS
Payloads
EO/IR cameras
Telemetry systems
Navigation systems
Interface RF modules through UART, SPI, Ethernet, CAN, USB and other interfaces.
Work closely with Embedded, Flight Control and Drone System Engineering teams.
9. Testing & Validation
Conduct RF range testing and field trials.
Perform RSSI, SNR, BER, packet-loss and latency measurements.
Use RF test equipment for troubleshooting and validation.
Prepare RF test procedures and technical reports.
Required Technical Skills
Candidates should have practical knowledge of:
RF communication systems
RF link budget
FHSS
FSK / GFSK / PSK / QAM / OFDM
SDR
RF transceivers
RF amplifiers
Filters and RF front-end design
Antenna fundamentals
Telemetry systems
Long-range data links
UART / SPI / CAN / Ethernet
TCP/IP and UDP
Embedded communication interfaces
RF spectrum analysis
Signal integrity
RF interference and coexistence
Preferred Skills
Strong advantage if the candidate has experience in:
GNU Radio
MATLAB / Simulink
C/C++ / Python
USRP / ADALM-Pluto / LimeSDR
FHSS implementation
Mesh networking
MANET
Swarm communication
Anti-jamming communication
SDR-based waveform development
AES encryption
GNSS-denied communication environments
SATCOM integration
Defence communication systems
RF spectrum monitoring
Direction finding / RF sensing
RF Test Equipment Experience
Candidate should preferably have hands-on experience with equipment such as:
Spectrum Analyzer
Vector Network Analyzer (VNA)
Signal Generator
RF Power Meter
Oscilloscope
Antenna Analyzer
RF Attenuators / Couplers
RF Power Amplifier testing equipment
Education
Required:
B.Tech / M.Tech in Electronics & Communication, Electronics, RF/Microwave Engineering, Telecommunications or related field.
Preferred:
M.Tech / specialization in RF & Microwave, Wireless Communication, Communication Systems or SDR.

Work arrangement
No