Signal Processing Engineer
Job Description
Job Description (JD) – Physical Layer / Baseband Processing Engineer
Job Title: Physical Layer / Baseband Processing Engineer
Company: 7 Darter Info Services Pvt. Ltd.
Location: Hyderabad, Telangana (On-site)
Job Type: Full-time
Industry: Wireless Communication / Defence Technology
About the Company
7 Darter Info Services Pvt. Ltd. is an innovative technology company developing next-generation wireless communication systems for India’s defence sector. The organization focuses on advanced RF and Digital Signal Processing (DSP) technologies to build secure, anti-jamming surveillance and communication solutions under the “Make in India” initiative.
Job Summary
We are seeking an experienced Physical Layer/Baseband Processing Engineer to design, develop, and implement advanced wireless communication waveforms for defence applications. The successful candidate will work on Physical Layer (PHY) and baseband signal processing, implementing FHSS and FHSS-OFDM waveforms on TI DSP platforms while collaborating closely with RF engineers to deliver robust wireless communication systems.
Key Responsibilities
Physical Layer Development
Design and develop Frequency Hopping Spread Spectrum (FHSS) waveforms for the Basic wireless communication system.
Develop FHSS-OFDM waveforms for the Advanced wireless communication platform.
Design Physical Layer algorithms to support secure, reliable, and high-performance communication.
Implement waveform synchronization and optimize signal processing performance.
Baseband Processing
Develop and optimize baseband signal processing algorithms.
Port MATLAB-based communication algorithms to TI DSP platforms.
Optimize DSP implementations for computational efficiency (20–50 MFLOPS).
Ensure real-time processing and reliable wireless communication.
DSP Development
Implement waveform processing on Texas Instruments DSPs (C55x, C6748).
Develop embedded DSP software using C/C++.
Utilize TI Code Composer Studio for firmware development and debugging.
Optimize DSP performance for low latency and efficient resource utilization.
RF Integration
Collaborate with RF engineers for integration with RF front-end hardware.
Support integration with platforms such as HackRF and AD9361.
Validate end-to-end wireless communication performance.
Troubleshoot RF and baseband integration issues.
Testing & Validation
Perform simulation, testing, and validation of communication algorithms.
Analyze system performance under various operating conditions.
Ensure compliance with defence communication requirements.
Document design methodologies and technical specifications.
Required Qualifications
B.Tech/M.Tech in Electronics & Communication Engineering (ECE), Electrical Engineering, or a related discipline.
Degree from a reputed institution.
Experience
Minimum 7 years of experience in Physical Layer design and Baseband Processing for wireless communication systems.
Required Technical Skills
Wireless Communication
Physical Layer (PHY) design
Baseband signal processing
FHSS (Frequency Hopping Spread Spectrum)
OFDM (Orthogonal Frequency Division Multiplexing)
FHSS-OFDM
QPSK Modulation
Wireless waveform development
Programming
MATLAB
C Programming
Embedded Software Development
DSP
Texas Instruments DSP Processors
TI C55x Series
TI C6748
TI Code Composer Studio
DSP optimization
Real-time embedded systems
RF & Communication Systems
RF Communication Systems
RF frequency range (350–450 MHz)
Anti-jamming communication techniques
Secure wireless communication
RF hardware integration
Additional Skills
Signal processing
Algorithm optimization
Embedded system debugging
Performance analysis
Technical documentation
Preferred Skills
Knowledge of defence communication systems.
Experience with anti-jamming technologies.
Familiarity with WPC/DoT regulations.
Experience working with HackRF, AD9361, or similar SDR platforms.
Strong understanding of wireless communication protocols.
Soft Skills
Strong analytical and problem-solving abilities.
Excellent communication and collaboration skills.
Ability to work in a fast-paced, startup environment.
Self-motivated with a strong sense of ownership.
Team player capable of working in cross-functional engineering teams.
Why Join Us?
Work on cutting-edge defence communication technologies.
Be part of India’s “Make in India” defence innovation initiative.
Hands-on exposure to advanced RF, DSP, and wireless communication systems.
Opportunity to contribute to high-impact national technology projects.
How to Apply
Interested candidates can send their updated resume along with a brief cover letter to info@7darter.com.
