Cybersecurity Engineer – RF

Globals Inc; Bengaluru Urban; On-site; INR 1,500,000 - 2,300,000; Full time

Job summary

Globals Inc is seeking a Cybersecurity Engineer (RF) to secure and stress-test RF links, including drone/C2 channels and cellular stacks, in defense-relevant contexts.

You will build SDR test rigs, perform real-world attacks in a lab, and deliver hardening recommendations for deployment. Strong Python and GNU Radio skills are essential.

Qualifications

• 3–5 years of experience in cybersecurity, RF/wireless security, or signal processing engineering.
• Hands-on experience with SDR hardware (HackRF, USRP, or RTL-SDR) and GNU Radio.
• Working knowledge of GSM/LTE/5G protocol stacks and associated security weaknesses.
• Practical RF signal analysis skills—capture, decode, and interpret radio signals.
• Proficiency in Python for scripting and analysis; familiarity with DSP libraries (NumPy, SciPy).
• Understanding of frequency hopping schemes and jamming/spoofing detection techniques.
• Experience with, or strong grounding in, red team/adversarial security testing methodology.

Responsibilities

• Perform security assessments of RF communication links, including drone/UAS C2 channels and GCS links.
• Build and operate SDR-based test setups using GNU Radio for signal capture, analysis, and attack simulation.
• Analyze and test cellular protocol stacks (GSM/LTE/5G) for vulnerabilities.
• Evaluate RF link hardening measures and implement countermeasures.
• Conduct signal processing and decoding to support protocol-level analysis.
• Perform red-team/adversarial testing of wireless/RF systems and document remediation guidance.
• Write Python scripts to automate testing and analysis workflows.
• Collaborate with drone platform and embedded teams on OTA update security and platform hardening.
• Produce technical documentation suitable for defence customers and internal reviews.

Skills

RF security

GNU Radio

Python

DSP tools (NumPy/SciPy)

Cellular protocols (GSM/LTE/5G)

Red team security testing

Drone/UAS security

C/C++

Tools

HackRF

USRP

RTL-SDR

OsmocomBB / gr-gsm

Job description

Globals has drastically grown from a small home office to a globally recognized enterprise offering world‑class quality solutions on Cybersecurity, Cyberwarfare, ERP Systems, AI, and Enterprise Application Development for various industries including Defence, Education, Government, Financial Services and Transport Industries. Globals has enabled its customers to be game‑changers in their industry through its disruptive and innovative solutions.

Globals is certified as a "Great Place to Work" organization for its laudable work culture that helps its team members manage work‑life, have dedicated hours to upskill and reskill themselves, and most important to ensure that the projects that they are working on are always unique, challenging their status quo every time. Our unique work culture has made us one of the world’s fastest‑growing technology companies as recognized and featured by The Economist.

Our excellence in technical stewardship and service‑offering expertise has facilitated our clients ranging from individual entrepreneurs to Fortune Global 500 – to explore new business opportunities, reduce their operational costs significantly and boost their revenues. Today, Globals enjoys a strong position in the industry as a high-performing leader through its technology innovation and remarkable domain expertise. Globals is a CMMI Level 5 certified company.

Role Summary

We're looking for a Cybersecurity Engineer with hands‑onRF expertise to secure and stress‑test wireless and radio‑frequencycommunication links — including drone/UAS command‑and‑control (C2) channels,SDR-based systems, and cellular protocol stacks. You'll work across signalanalysis, protocol‑level security testing, and link hardening for platformsused in defence and critical‑infrastructure contexts.

NOTE

This is an implementation‑focused engineering role (not pure research) — you'll be expected to build test rigs, run real attacks against RF links in a lab environment, and deliver hardening recommendations that get shipped.

Requirements

• Perform security assessments of RFcommunication links, including drone/UAS C2 channels and GCS (ground controlstation) links
• Build and operate SDR-based testsetups (HackRF, USRP, RTL‑SDR) using GNU Radio for signal capture, analysis,and attack simulation
• Analyze and test cellular protocolstacks (GSM/LTE/5G) for vulnerabilities, including work with tools such asOsmocomBB / gr-gsm
• Evaluate and implement RF linkhardening measures — frequency hopping schemes, jamming/spoofing detection, keyexchange protocols
• Conduct signal processing and decodingwork (e.g., Viterbi decoding) to support protocol‑level analysis
• Perform red-team / adversarial testingagainst wireless and RF systems, and document findings with clear remediationguidance
• Write scripts and tooling in Python(with DSP libraries such as NumPy/SciPy) to automate testing and analysisworkflows
• Collaborate with drone platform andembedded teams (DJI, ArduPilot, PX4) on OTA update security and platformhardening
• Produce technical documentationsuitable for defence customers and internal engineering review

Requirement

• 3–5 years of experience incybersecurity, RF/wireless security, or signal processing engineering
• Hands‑on experience with SDR hardware(HackRF, USRP, or RTL‑SDR) and GNU Radio
• Working knowledge of GSM/LTE/5Gprotocol stacks and associated security weaknesses
• Practical RF signal analysis skills —capture, decode, and interpret radio signals
• Proficiency in Python for scriptingand analysis; familiarity with DSP libraries (NumPy, SciPy) a strong plus
• Understanding of frequency hoppingschemes and jamming/spoofing detection techniques
• Experience with, or strong conceptualgrounding in, red team / adversarial security testing methodology

Good to Have

• Exposure to drone/UAS platforms (DJI,ArduPilot, PX4) or ground control software (QGroundControl, Mission Planner)
• Familiarity with key exchangeprotocols and C2 link security/hardening
• Background in SIGINT/COMINT concepts
• Exposure to defence procurement orDRDO/MoD project environments
• C/C++ in addition to Python

What We Offer

• A small, high-context engineering teamwhere individual contributions are highly visible
• Opportunity to work across the fullstack — RF, embedded, and protocol‑level security