Constelli Signals

Senior RF Design Engineer

Posted
Date not provided
Last verified at source
2 days ago
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About Us 

We are a dynamic team of young engineers, domain experts, and seasoned sales professionals dedicated to providing comprehensive turnkey solutions for complex challenges in Signal Processing. Our expertise spans the cutting-edge technologies in Signal Processing, addressing critical needs in the Defence and Aerospace sectors. Our offerings encompass a wide range of solutions, from tactical radios and radar systems to extensive research and 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. 

Key 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. 

Required Qualifications

  • 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 environment 
  • 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 position located at our Hyderabad office, with regular on-site visits to clients and vendor locations.  
  • Overtime may be necessary to ensure the timely delivery of client projects.  
  • Weekend work is uncommon but may occasionally be required.  

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.