Digital Signal Processing Engineer

catalyx space; Ahmedabad District; On-site; INR 800,000 - 1,500,000; Full time

Benefits offered by this job

Competitive salary

Health insurance

Provident fund

Job summary

Catalyx Space is seeking a Digital Signal Processing Engineer in Ahmedabad, Gujarat to design and optimize signal-processing algorithms for spacecraft communication systems. The ideal candidate will have 2-6 years of experience in DSP algorithm development, specifically for RF/wireless systems, and a solid understanding of communications theory. This full-time role involves building real-time signal-processing pipelines and collaborating on FPGA/SoC designs. Benefits include a competitive salary, health insurance, and Provident fund.

Qualifications

• 2–6 years in DSP algorithm development for RF/wireless systems.
• Strong communications theory: modulation, coding, synchronization, spectral efficiency.
• Error‑correction coding background (LDPC, Turbo, Reed–Solomon) and HW implementation.

Responsibilities

• Design & implement DSP algorithms for modulation/demodulation, filtering, synchronization.
• Build real‑time signal‑processing pipelines for SDR/FPGAs and embedded processors.
• Run link simulations, BER analysis, and channel modeling for satcom links.

Skills

DSP algorithm development

RF/wireless systems

Communications theory

Error correction coding

FPGA DSP

GNU Radio

MATLAB/Simulink

Python

Education

B.E./B.Tech or M.E./M.Tech in Electronics/Electrical/Communications

Tools

GNU Radio

SDR hardware platforms

FPGA (VHDL/Verilog or HLS)

Job description

Role: Digital Signal Processing Engineer

Location: Ahmedabad, Gujarat, India (On-site)

Employment type: Full-time

About Catalyx Space

We’re building AWS for space—providing in-space experiments and tech demos across LEO, deep space, and lunar orbit. Our offerings include unmanned labs, testbeds for rideshare and dedicated missions, and re‑entry capsules for payload return. We simplify access with end‑to‑end solutions, no minimum mass limits, zero integration fees, and fast deployment (≤6 months), serving biopharma, semiconductors, materials science, defense, and more.

Role

Design, implement, and optimize signal‑processing algorithms and firmware for spacecraft communication systems (S-band/X-band). Work spans baseband processing, modulation/demodulation, coding, synchronization, and FPGA/SoC implementations, plus HW/SW integration and validation with GNU Radio and SDR platforms.

Key responsibilities

• Design & implement DSP algorithms for modulation/demodulation, filtering, synchronization, FEC, and channel estimation.
• Build real‑time signal‑processing pipelines for SDR/FPGAs and embedded processors.
• Implement PHY algorithms (BPSK, QPSK, OQPSK, 8PSK, DVB-S2, etc.) in fixed‑point / hardware‑efficient forms.
• Use GNU Radio (and similar) for simulation, prototyping, and HIL validation.
• Integrate DSP modules with RF front‑ends and transceivers (S-band, X-band).
• Co‑design FPGA/SoC architectures with hardware/firmware teams.
• Run link simulations, BER analysis, and channel modeling for satcom links.
• Optimize chains for latency, throughput, and power in embedded environments.

Qualifications

• B.E./B.Tech or M.E./M.Tech in Electronics/Electrical/Communications (or related).
• 2–6 years in DSP algorithm development for RF/wireless systems.
• Strong communications theory: modulation, coding, synchronization, spectral efficiency.
• Error‑correction coding background (LDPC, Turbo, Reed–Solomon) and HW implementation.
• Experience with FMECA/worst‑case analysis for DSP/FPGA subsystems.
• Hands‑on FPGA DSP (VHDL/Verilog or HLS) and embedded MCUs.
• Proficiency in GNU Radio, MATLAB/Simulink, or Python for algorithm design/verification.
• Familiarity with SDR hardware platforms.
• Understanding of RF front‑end traits (gain, NF, BW, I/Q balance, etc.).

Nice to have

• DVB-S2/X, CCSDS, or related space comms protocols.
• Beamforming, MIMO, or adaptive modulation.
• Experience in satellite comms, CubeSat payloads, or ground‑station SDRs.
• Competitive salary (details will be shared with shortlisted candidates), health insurance, Provident fund.

Equal Opportunity

Catalyx Space is an equal opportunity employer and does not discriminate on any protected characteristic.