Cybersecurity Engineer – RF

Globals Inc.; Bengaluru; On-site; INR 1,200,000 - 2,400,000; Full time

Benefits offered by this job

Small engineering team

Full-stack RF/security projects

Job summary

Globals seeks a cybersecurity engineer with hands-on RF expertise to secure and stress-test wireless links—drone/UAS C2, SDR-based systems, and cellular stacks. You'll design and run lab test rigs, perform controlled attacks, and deliver hardening recommendations that ship with products.

Collaborate with drone platform and embedded teams (DJI, ArduPilot, PX4), develop Python automation using NumPy/SciPy, and produce technical docs for defence customers and internal reviews.

Qualifications

• 3–5 years of experience in cybersecurity, RF/wireless security, or signal processing engineering.
• Hands-on experience with SDR hardware (HackRF, USRP, 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 conceptual grounding in, red team / adversarial security testing methodology.

Responsibilities

• Perform security assessments of RF communication links, including drone/UAS C2 channels and GCS (ground control station) links.
• Build and operate SDR-based test setups (HackRF, USRP, RTL-SDR) using GNU Radio for signal capture, analysis, and attack simulation.
• Analyze and test cellular protocol stacks (GSM/LTE/5G) for vulnerabilities, including work with tools such as OsmocomBB / gr-gsm.
• Evaluate and implement RF link hardening measures — frequency hopping schemes, jamming/spoofing detection, key exchange protocols.
• Conduct signal processing and decoding work (e.g., Viterbi decoding) to support protocol-level analysis.
• Perform red-team / adversarial testing against wireless and RF systems, and document findings with clear remediation guidance.
• Write scripts and tooling in Python (with DSP libraries such as NumPy/SciPy) to automate testing and analysis workflows.
• Collaborate with drone platform and embedded teams (DJI, ArduPilot, PX4) on OTA update security and platform hardening.
• Produce technical documentation suitable for defence customers and internal engineering review.

Skills

SDR Hardware

GNU Radio

Python scripting

NumPy/SciPy

GSM/LTE/5G knowledge

RF signal analysis

Red team testing

C/C++

Drone/UAS familiarity

Tools

HackRF

USRP

RTL-SDR

OsmocomBB

gr-gsm

GNU Radio

Python

Job description

About Globals

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.

Job Description

Globals has drastically grew 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 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-on RF expertise to secure and stress-test wireless and radio-frequency communication links — including drone/UAS command-and-control (C2) channels, SDR-based systems, and cellular protocol stacks. You'll work across signal analysis, protocol-level security testing, and link hardening for platforms used 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

Key Responsibilities

• Perform security assessments of RF communication links, including drone/UAS C2 channels and GCS (ground control station) links
• Build and operate SDR-based test setups (HackRF, USRP, RTL-SDR) using GNU Radio for signal capture, analysis, and attack simulation
• Analyze and test cellular protocol stacks (GSM/LTE/5G) for vulnerabilities, including work with tools such as OsmocomBB / gr-gsm
• Evaluate and implement RF link hardening measures — frequency hopping schemes, jamming/spoofing detection, key exchange protocols
• Conduct signal processing and decoding work (e.g., Viterbi decoding) to support protocol-level analysis
• Perform red-team / adversarial testing against wireless and RF systems, and document findings with clear remediation guidance
• Write scripts and tooling in Python (with DSP libraries such as NumPy/SciPy) to automate testing and analysis workflows
• Collaborate with drone platform and embedded teams (DJI, ArduPilot, PX4) on OTA update security and platform hardening
• Produce technical documentation suitable for defence customers and internal engineering review

Requirement

• 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) a strong plus
• Understanding of frequency hopping schemes and jamming/spoofing detection techniques
• Experience with, or strong conceptual grounding 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 exchange protocols and C2 link security/hardening
• Background in SIGINT/COMINT concepts
• Exposure to defence procurement or DRDO/MoD project environments
• C/C++ in addition to Python

Benefits

What We Offer

• A small, high-context engineering team where individual contributions are highly visible
• Opportunity to work across the full stack — RF, embedded, and protocol-level security