Signal Processing Engineer

Zen Technologies Limited; Hyderabad; On-site; INR 2,500,000 - 4,500,000; Full time

Job summary

Zen Technologies Limited in Hyderabad seeks a Signal Processing / Antenna Engineer to design, develop, validate advanced antenna systems and RF algorithms for Counter-Drone and EW applications. You will collaborate with multidisciplinary teams to deliver robust defence solutions.

The role emphasizes DSP, beamforming, direction finding, and robust production-ready algorithms, with emphasis on lab validation and field demonstrations across RF platforms.

Qualifications

• Minimum 8 years of experience in Signal Processing and/or Antenna Design.
• Strong knowledge of Digital Signal Processing (DSP), Digital Communication Systems, Direction Finding (DF).
• Experience developing algorithms using MATLAB and/or Python.
• Hands-on experience with antenna simulation tools such as ANSYS HFSS and FEKO.
• Strong understanding of RF propagation, antenna measurements, and electromagnetic theory.
• Experience working on defence, aerospace, radar, or mission-critical communication systems.

Responsibilities

• Develop RF signal detection, classification, and identification algorithms for Counter-Drone applications.
• Design and implement DSP algorithms for target detection and tracking.
• Develop filtering, modulation recognition, spectral analysis, and interference mitigation techniques.
• Optimize detection performance in complex and noisy RF environments.
• Support real-time signal processing implementation and algorithm optimization.
• Design broadband, directional, and high-gain antenna systems.
• Develop antenna arrays for advanced surveillance and Counter-UAS applications.
• Perform beamforming, direction finding (DF), and array optimization.
• Optimize antenna gain, bandwidth, radiation patterns, polarization, and efficiency.
• Conduct antenna measurements, tuning, and performance validation.
• Analyze system performance under varying operational and environmental conditions.
• Support design optimization through simulation and experimental validation.

Skills

DSP

Antenna design

Beamforming

Direction finding

RF signal analysis

Target detection

MATLAB

Python

Antenna measurements

RF propagation

Tools

ANSYS HFSS

FEKO

Job description

The Signal Processing / Antenna Engineer will be responsible for designing, developing, integrating, and validating advanced antenna systems and RF signal processing algorithms for Counter-Drone and Electronic Warfare applications.

The ideal candidate should possess strong expertise in Digital Signal Processing (DSP), antenna design, beamforming, RF signal analysis, direction finding, and target detection. You will collaborate with multidisciplinary engineering teams including RF, Radar, AI/ML, Embedded Systems, FPGA, and Software Engineering to deliver robust, production-ready defence solutions.

Key Responsibilities

1. Signal Processing

• Develop RF signal detection, classification, and identification algorithms for Counter-Drone applications.
• Design and implement Digital Signal Processing (DSP) algorithms for target detection and tracking.
• Develop filtering, modulation recognition, spectral analysis, and interference mitigation techniques.
• Optimize detection performance in complex and noisy RF environments.
• Support real-time signal processing implementation and algorithm optimization.
• Design broadband, directional, and high-gain antenna systems.
• Develop antenna arrays for advanced surveillance and Counter-UAS applications.
• Perform beamforming, direction finding (DF), and array optimization.
• Optimize antenna gain, bandwidth, radiation patterns, polarization, and efficiency.
• Conduct antenna measurements, tuning, and performance validation.

3. Simulation & Analysis

• Perform antenna modelling and electromagnetic simulations using:
• ANSYS HFSS
• FEKO
• Analyze antenna performance, RF propagation, and electromagnetic interference.
• Evaluate system performance under varying operational and environmental conditions.
• Support design optimization through simulation and experimental validation.

4. System Integration

• Integrate antenna and signal processing subsystems with:
• Radar Systems
• Electronic Warfare Payloads
• AI-based Detection Systems
• Embedded Platforms
• FPGA-Based Systems
• Work closely with cross-functional engineering teams to ensure seamless system integration.
• Participate in laboratory evaluations, field trials, and customer demonstrations.

5. Validation & Qualification

• Conduct laboratory testing and field validation of antenna and signal processing subsystems.
• Analyze system performance and recommend design improvements.
• Support Acceptance Test Procedures (ATP), Factory Acceptance Tests (FAT), Site Acceptance Tests (SAT), qualification testing, and customer acceptance trials.
• Ensure compliance with defence quality and performance standards.

Required Qualifications

• Minimum 8 years of experience in Signal Processing and/or Antenna Design.
• Strong knowledge of:
• Digital Signal Processing (DSP)
• Digital Communication Systems
• Direction Finding (DF)
• Experience developing algorithms using MATLAB and/or Python.
• Hands-on experience with antenna simulation tools such as:
• ANSYS HFSS
• FEKO
• Strong understanding of RF propagation, antenna measurements, and electromagnetic theory.
• Experience working on defence, aerospace, radar, or mission-critical communication systems.

Preferred Skills

Experience in one or more of the following domains is highly desirable:

• Counter-Drone (C-UAS) Systems
• Radar Signal Processing
• Electronic Warfare (EW)
• Software Defined Radio (SDR)
• AI-assisted RF Signal Classification
• Military Communication Systems

Desired Competencies

• Strong analytical and problem-solving skills.
• Expertise in RF signal analysis and antenna optimisation.
• Ability to troubleshoot complex RF and signal processing systems.
• Excellent collaboration and communication skills.
• Experience working in multidisciplinary product development environments.
• Ability to work effectively in fast-paced defence R&D programs.