Radio Frequency Engineer

Sisir Radar Private Limited; Kolkata District; On-site; INR 900,000 - 1,300,000; Full time

Job summary

Sisir Radar Private Limited is seeking a Radio Frequency Engineer for an on-site role in Kolkata. You will design, develop, and optimize RF circuits for advanced SAR platforms, perform simulations, and support prototyping and validation activities.

Collaboration with multidisciplinary teams is required to improve radar performance and reliability. The role emphasizes hands-on measurement using network and spectrum analyzers, with a strong foundation in electromagnetics and microwave engineering.

Qualifications

• Must have strong RF design and high-frequency knowledge.
• Experience with schematic capture and layout considerations.
• Hands-on use of RF test equipment (network/spectrum analyzers).
• Background in electromagnetics, microwave engineering, and signal integrity.

Responsibilities

• Design, develop, and optimize RF circuits and subsystems for SAR and radar platforms.
• Create and review RF/circuit designs, run simulations, support prototyping.
• Perform validation and performance testing; use measurement equipment to characterize components.
• Document findings and work with cross-functional teams for system improvements.

Skills

RF design

High-frequency systems

Schematic capture

Layout considerations

RF test equipment

Electromagnetics

Microwave engineering

Signal integrity

Education

Bachelor’s or Master’s degree in Electrical Engineering

Tools

HFSS

ADS

Job description

Company Description

Sisir Radar Private Limited is pioneering advanced Synthetic Aperture Radar (SAR) technologies, including the world’s highest-resolution L-band SAR and India’s first drone-borne SAR. The company focuses on delivering all-weather, day-and-night, high-frequency imaging solutions whose performance is unaffected by clouds, smoke, fog, or darkness. Its mission is to make cutting-edge radar imaging and its insights affordable and accessible to a wide range of commercial and strategic users. Sisir Radar is guided by founder Tapan Misra, a globally recognized expert in imaging radar and former Director of ISRO’s Space Applications Centre (SAC) and Physical Research Laboratory (PRL). He is also known as the Father of the RISAT series of imaging satellites and lead designer of the NASA-ISRO dual-frequency SAR (NISAR) mission.

Role Description

This is a full-time, on-site Radio Frequency Engineer role based in Kolkata. The Radio Frequency Engineer will design, develop, and optimize RF circuits and subsystems for advanced SAR and related radar platforms. Responsibilities include creating and reviewing RF and circuit designs, performing simulations, supporting prototyping, and conducting validation and performance testing. The role involves frequent use of measurement equipment such as network analyzers and spectrum analyzers to characterize components and systems, diagnose issues, and refine designs. The engineer will collaborate with cross-functional teams, document technical findings, and contribute to continuous improvement of radar system performance and reliability.

Qualifications

• Strong RF design and RF circuits skills, with experience in high-frequency systems.
• Proficiency in circuit design, including schematic capture, layout considerations, and component selection.
• Hands-on experience using RF test equipment such as network analyzers and spectrum analyzers for measurement and troubleshooting.
• Solid foundation in electromagnetics, microwave engineering, and signal integrity.
• Bachelor’s or Master’s degree in Electrical Engineering, Electronics, or a related discipline.
• Experience with simulation tools (e.g., HFSS, ADS, or similar) is an advantage.
• Ability to work on-site in Kolkata, collaborate within multidisciplinary teams, and document work clearly.
• Prior experience in radar, RF front-end design, or aerospace/defense domains is beneficial.