Job Description
- Senior RF & Microwave Hardware Engineer

About Us
We are a group of young and enthusiastic engineers, domain experts providing turnkey solutions to challenging requirements in Aerospace & Defence Industry. We work on leading technologies in Radar Systems, Communication Systems, EW & Advanced Signal Processing . Our solutions range from tactical radios to radars, and from research to mission critical applications.

About the role
As a Senior RF Hardware Design Engineer, you will play a key role in the architecture, design, simulation, implementation, bring-up, and verification of RF and microwave hardware subsystems for aerospace and defence applications. The role includes RF signal-chain design from antenna port to baseband, including LNAs, PAs, mixers, filters, RF switches, attenuators, PLLs, frequency synthesizers, clock/LO distribution, and wideband RF front-end modules operating up to 40 GHz. The engineer will translate system-level requirements into circuit-level specifications and support the complete hardware development cycle from concept to qualification and production support. Responsibilities Circuit Design & Analysis
• Design and optimize RF/microwave circuits and subsystems, including LNAs, PAs, mixers, filters, RF switches, attenuators, VCOs, PLLs, frequency synthesizers, clock/LO distribution circuits, and RF front-end modules up to 40 GHz.
• Perform RF system and circuit-level analysis, including link budget, cascaded gain/noise figure, IP2/IP3, P1dB, dynamic range, SFDR, phase noise, jitter, LO leakage, image rejection, harmonic/spurious analysis, EVM, and emissions performance.
• Develop and execute RF simulation models using tools such as Keysight ADS, AWR Microwave Office, Ansys HFSS, CST Studio, or equivalent tools for linear, nonlinear, EM, and system-level co-simulation.
• Select and qualify active/passive RF components and design with GaN/GaAs/SiGe/CMOS RFIC/MMIC devices.
• Define component derating, worst-case analysis, lifecycle risk, alternate part strategy, and reliability considerations for high-reliability aerospace and defence hardware.
• Translate system-level requirements such as frequency range, sensitivity, output power, EVM, phase noise, isolation, spur level, and dynamic range into verifiable RF circuit and subsystem specifications. Systems Architecture & Integration




• Contribute to RF subsystem architecture trade studies and module-level implementation planning.
• Lead antenna-to-baseband RF signal-chain design for radar, EW, telemetry, tactical radio, SDR, wideband receiver, and up/down-converter applications.
• Work with system engineers to allocate RF performance budgets and cascade gain, noise figure, linearity, filtering, isolation, and dynamic range from antenna port to ADC/DAC interface.
• Define LO and clock architecture, including reference clock distribution, PLL/synthesizer selection, phase noise budgeting, spur management, synchronization, and frequency settling requirements.
• Guide and review RF PCB layout, including stack-up selection, controlled impedance routing, RF via transitions, grounding, return-current paths, shielding, cavity isolation, connector transitions, and mixed-signal partitioning.
• Support mechanical and thermal integration, including RF shielding, heat sinking, enclosure effects, RF cable/connector selection, vibration considerations, and high-power PA thermal design.
• Support integration with FPGA, firmware, embedded software, and DSP teams from the RF hardware side, including AGC, DPD, calibration, JESD204/LVDS interfaces, timing, synchronization, and hardware control interfaces. Product Development & Qualification
• Define and execute RF test plans covering conducted and radiated measurements, including S-parameters, gain, gain flatness, return loss, output power, P1dB, IP3, noise figure, phase noise, EVM, ACLR/ACPR, harmonic/spurious emissions, receiver sensitivity, blocking, isolation, and EMI/EMC pre-compliance.
• Perform prototype bring-up, lab debugging, tuning, rework support, failure analysis, oscillation/debug, spur hunting, desense investigation, thermal drift analysis, and simulation-to-measurement correlation.
• Support design readiness and qualification activities for MIL-STD-461 EMC and MIL-STD-810 environmental requirements.
• Support production transfer, including DFM/DFT review, BOM alternate qualification,



test fixture definition, production test procedures, and yield/debug support.
• Maintain design documentation, including schematics, RF PCB specifications, simulation reports, test procedures, test reports, analysis reports, interface control documents, compliance matrices, and verification evidence.
• Prepare and present PDR/CDR material, technical status, risk items, and design trade-off summaries to program managers, internal teams, and external customers. Qualifications Required
• B.
Tech / M.
Tech. in Electrical and Electronics Engineering, or closely related field.
• 8+ years of hands-on RF/microwave circuit and subsystem design experience in an aerospace, defence workplace
• Demonstrated proficiency with at least two RF EDA tools: Keysight ADS, AWR Microwave Office, Ansys HFSS, CST Studio, or equivalent.
• Strong command of RF test equipment: VNA, Spectrum Analyzer, signal generator, noise-figure Analyzer, Oscilloscope and power meters.
• Experience designing with GaN/GaAs/SiGe/CMOS RFIC/MMIC devices.
• Familiarity with MIL-STD-461, MIL-STD-810, and MIL-HDBK-217 requirements.
• Strong written and verbal communication skills; ability to produce and defend technical documentation in a program environment Preferred
• M.
S. or Ph.
D. in RF / Microwave Engineering or related discipline
• Experience with Radar, Electronic warfare (EW), or Telemetry systems
• Familiarity with VHDL/Verilog or Python/MATLAB for test automation and signal processing support. Employee status and commitments
• Permanent full-time role based at our Hyderabad office with often onsite client visit.
• Overtime may be required to ensure client projects to be delivered on time.
• Weekend work is rare but can occasionally be necessary. Why join US?
• Culture of Excellence: We are committed to fostering a culture where every individual can thrive, grow, and make a difference.
• Opportunities for Growth: We believe in investing in our people and providing opportunities for professional development and advancement.
• Collaborative Culture: Join a collaborative and supportive work environment where your contributions are valued and recognized.
• Innovative Environment: Be part of a team that thrives on innovation and is committed to pushing the boundaries of RF technology.

📌 Radio Frequency Design Engineer (Hyderabad)
🏢 CONSTELLI
📍 Hyderabad