SENIOR DSP DESIGN ENGINEER

Azista Space

Bengaluru

On-site

INR 1,500,000 - 2,500,000

Full time

14 days+

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Job summary

Azista Space in Bengaluru is seeking a Senior DSP Design Engineer to lead the development of high-reliability communication modems for space systems. You will design and optimize signal processing algorithms for satellite links, collaborate with RF and hardware teams, and ensure system performance readiness. The ideal candidate has over 5 years of experience in DSP/SR design, particularly in satellite communications, and holds an M.Tech/MS in Communication Systems. Competitive benefits and growth opportunities await.

Qualifications

5+ years in DSP, SDR, or modem design for communication systems.
Proven experience in satellite communications or aerospace.
Track record of high-reliability, real-time communication systems.

Responsibilities

Lead development of FPGA-based SDR modem solutions.
Architect and design end-to-end SDR communication modems.
Collaborate on verification and validation efforts.

Skills

Digital Communication Systems & Modem Design

Digital Signal Processing (DSP)

RF Sampling & Data Conversion

FPGA-based SDR Systems

RF Systems & Transceiver Integration

Simulation & Validation Tools

Education

M.Tech / MS in Communication Systems or related field

Tools

MATLAB

Python

Job description

Join a team that is redefining the accessibility of space. Azista space is a transformative force in the global aerospace sector, uniquely positioned at the intersection of indigenous innovation and industrial scalability. Operating India’s first private-sector satellite mass-production facility in Ahmedabad, we have bridged the gap between complex engineering and high-volume manufacturing.

As a vertically integrated leader, we provide end-to-end solutions from the precision design of satellite buses and advanced payloads to mission management and communication systems. We don’t just build hardware, we are democratizing the final frontier by providing global clientele with the cost-effective, high-performance technology needed to power the next generation of orbital missions. At Azista, you won't just be starting a job, you’ll be fuelling the future of space exploration.

Role Overview

We are looking for a Senior DSP Design Engineer – SDR & Satellite Communications to lead the development of high-reliability communication modems for space systems. In this role, you will architect and deliver FPGA-based SDR modem solutions for telemetry, telecommand, and high-throughput satellite links (DVB-S2/S2X).

You will work at the intersection of digital signal processing, RF systems, and FPGA implementation, driving mission-critical communication subsystems from concept to flight readiness. This is a high-impact opportunity to contribute directly to next-generation satellite platforms and space exploration technologies while collaborating with cross-functional teams in RF, hardware, and systems engineering.

Architect end-to-end SDR communication modems for telemetry (TM), telecommand (TC), and DVB-S2/S2X high-throughput satellite links
Design and optimize PHY-layer algorithms including synchronization (carrier, timing, frame), modulation, pulse shaping, and packetization
Develop robust error correction and detection schemes (LDPC, BCH, Turbo, Reed‑Solomon) to ensure high link reliability
Implement and validate DVB‑S2/S2X modem chains, including APSK modulation, framing, and Adaptive Coding & Modulation (ACM)
Perform link budget analysis and optimize spectral efficiency, throughput, and link margin under real‑world constraints
Design RF sampling architectures (direct RF, IF sampling, multi‑Nyquist techniques) and optimize ADC/DAC performance
Collaborate with FPGA teams to build high-throughput baseband pipelines using Xilinx platforms, AXI4‑Stream, and fixed‑point DSP
Integrate modem solutions with RF transceivers (AD9361, AD9371, AFE7950) and high‑speed interfaces (JESD204B/C)
Develop advanced algorithms for channel impairment mitigation (CFO correction, Doppler compensation, phase noise, equalization)
Lead verification and validation efforts, including BER/FER analysis, Eb/N0 characterization, HIL testing, and OTA validation
Support hardware bring‑up, debugging, and system integration using lab instrumentation (VSA/VSG, spectrum analyzers, oscilloscopes)
Collaborate across teams to define ICDs, system budgets, and performance metrics, contributing to design reviews (PDR/CDR)

Required Qualifications & Skills

1) Strong experience in Digital Communication Systems & Modem Design
2) Deep knowledge of Digital Signal Processing (DSP)
3) Expertise in RF Sampling & Data Conversion
4) Experience with FPGA-based SDR Systems
5) Strong understanding of RF Systems & Transceiver Integration
6) Proficiency in Simulation & Validation Tools

Error correction coding: LDPC, BCH, Turbo, Reed‑Solomon
Hands‑on experience with DVB‑S2 / DVB‑S2X implementations

Synchronization (carrier, timing, frame), estimation & detection theory
Multi‑rate DSP and real‑time signal processing

Nyquist and multi‑Nyquist sampling, aliasing, spectral planning

AXI interfaces, streaming architectures, timing closure

RF impairments (phase noise, IQ imbalance, non‑linearity)
Interfaces: JESD204B/C, LVDS, DUC/DDC processing
Experience with transceivers like AD9361, AD9371, AFE7950

MATLAB / Python for link‑level simulation and algorithm development
Familiarity with HDL simulation and verification

Experience

5+ years in DSP, SDR, or modem design for communication systems
Proven experience in satellite communications, aerospace, or defense systems
Track record of delivering high‑reliability, real-time communication systems

Soft Skills

Strong ownership across architecture, implementation, and validation
Ability to collaborate across DSP, FPGA, and RF engineering teams
Excellent problem‑solving and debugging skills in complex signal chains
Clear communication for technical design reviews and cross‑team alignment
Execution‑driven mindset with focus on performance, scalability, and reliability

Preferred Qualifications (Nice to Have)