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, India (On-site)
Employment Type
Full-time
About the Company
7 Darter Info Services Pvt. Ltd. is an innovative technology company developing next-generation wireless communication solutions 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 systems under the “Make in India” initiative.
Job Summary
The Physical Layer/Baseband Processing Engineer will be responsible for designing, developing, and implementing advanced wireless communication waveforms for defence applications. The role involves physical layer algorithm development, DSP implementation, waveform optimization, RF integration, and close collaboration with RF engineers to deliver robust wireless communication systems.
Key Responsibilities
Waveform Design & Development
Design and develop Frequency Hopping Spread Spectrum (FHSS) waveforms for the Basic wireless communication system.
Develop FHSS-OFDM waveforms for the Advanced communication platform.
Design modulation and demodulation algorithms using QPSK and OFDM techniques.
Optimize waveform performance for reliable, secure, and anti-jamming communication.
DSP Implementation
Port MATLAB-based waveform algorithms to Texas Instruments (TI) DSPs.
Implement signal processing algorithms on TI C55x and TI C6748 processors.
Optimize DSP code to meet computational performance requirements (20–50 MFLOPS).
Utilize TI Code Composer Studio (CCS) for software development and debugging.
RF & System Integration
Integrate baseband processing with RF hardware platforms.
Collaborate with RF engineers to interface with hardware such as:
HackRF
AD9361 RF Transceiver
Ensure accurate waveform synchronization and reliable communication performance.
Testing & Validation
Validate physical layer performance through simulations and hardware testing.
Troubleshoot communication system issues.
Optimize system performance under real-world operating conditions.
Cross-functional Collaboration
Work closely with RF engineers and embedded software developers.
Participate in system integration, testing, and product development activities.
Contribute to technical documentation and design reviews.
Required Qualifications
B.Tech or M.Tech in:
Electronics & Communication Engineering (ECE)
Electrical Engineering
Or a related discipline from a reputed institution.
Experience
Minimum 7 years of experience in:
Physical Layer Design
Baseband Signal Processing
Wireless Communication Systems
Required Technical Skills
Wireless Communication
FHSS (Frequency Hopping Spread Spectrum)
OFDM
FHSS-OFDM
QPSK Modulation
Baseband Processing
Physical Layer Design
Programming
MATLAB
C Programming
DSP Development
Texas Instruments DSPs
TI C55x
TI C6748
TI Code Composer Studio
RF Systems
RF communication systems (350–450 MHz)
HackRF
AD9361 RF Transceiver
Signal Processing
Waveform Design
Synchronization Techniques
DSP Optimization
Real-time Signal Processing
Preferred Skills
Knowledge of defence communication systems.
Experience with anti-jamming communication techniques.
Understanding of WPC and DoT regulations.
Familiarity with embedded wireless system development.
Experience working in high-performance, real-time communication systems.
Soft Skills
Strong analytical and problem-solving abilities.
Excellent communication skills.
Ability to work in a fast-paced startup environment.
Team collaboration and cross-functional coordination.
Self-motivated and capable of handling challenging technical problems.
Preferred Candidate Profile
Experienced in wireless communication algorithm development.
Hands-on expertise with DSP implementation and RF integration.
Passion for defence technologies and embedded communication systems.
Comfortable working in a lean, innovation-driven engineering team.
How to Apply
Interested candidates should send their updated resume along with a brief cover letter to:
Email: info@7darter.com
