Senior Radio Frequency (RF) Engineer (Contract)

About ST Engineering

ST Engineering is a global technology, defence, and engineering group with offices across Asia, Europe, the Middle East, and the U.S., serving customers in more than 100 countries. The Group uses technology and innovation to solve real-world problems and improve lives through its diverse portfolio of businesses across the aerospace, smart city, defence, and public security segments. Headquartered in Singapore, ST Engineering ranks among the largest companies listed on the Singapore Exchange.

Our history spans more than 50 years, and our strategy is underpinned by our core values - Integrity, Value Creation, Courage, Commitment and Compassion. These 5core values guide every aspect of our business and are embedded in our ST Engineering culture - from the people we hire, to working with each other, to our partners and customers.

About our Business - Advanced Networks & Sensors

Our Advanced Networks & Sensors business specializes in platform digitalization, advanced connectivity, and cutting-edge manufacturing. This diversity of capabilities presents a range of roles through which you can contribute to the development of innovative, secure, and patented products. Join our team and play a crucial role in developing tomorrow’s technology and connectivity solutions and services to sectors spanning defence, public security, government, and the commercial realm. Your work will have a global impact as we empower customers through advanced communications, intelligent sensors, and the deployment of AI-enabled Edge applications for mission-critical roles.

Together, We Can Make A Significant Impact

We are seeking a highly skilled and motivated Senior RF Engineer to lead the design, development, and deployment of Counter Unmanned Aerial System (CUAS) technologies with a primary focus on Radio Frequency (RF) spectrum engineering for drone detection, classification, and mitigation. The ideal candidate will have hands-on experience in integrating multi-sensor CUAS platforms and a deep understanding of the RF landscape including signal analysis, direction finding, and electronic countermeasures.

You will play a key role in delivering mission-critical capabilities to protect high-value assets and critical infrastructure. This role requires technical leadership, field-readiness, and a willingness to support high-stakes events, which may require extended hours under operational pressure.

Be Part of Our Success

• Lead the design and implementation of RF-based detection, classification, and tracking solutions for CUAS applications.
• Conduct RF spectrum surveys, characterize RF signatures, and develop algorithms for drone signal identification.
• Integrate and optimize RF and non-RF sensor subsystems (e.g., radar, EO/IR, acoustic) into a unified CUAS platform.
• Collaborate with software and hardware teams to ensure seamless data fusion, system interoperability, and mission readiness.
• Provide on-site support for live demonstrations, critical infrastructure protection events, and emergency deployments-often requiring long or irregular hours.
• Author technical documentation, including CONOPS, interface control documents, and test plans/reports.
• Lead or contribute to system validation and verification efforts including lab, field, and red team testing.
• Liaise with government customers, defence partners, and internal stakeholders to refine requirements and improve system capabilities.
• Monitor evolving UAS threats and maintain up-to-date knowledge of RF protocols, spectrum regulations, and counter-drone technologies.

Qualities We Value

• Knowledge in Electrical Engineering, RF Engineering, or a related technical field.
• Possess 3 years of experience in RF engineering, signal analysis, or electronic warfare.
• Demonstrated expertise in RF spectrum analysis, signal classification, and protocol decoding (e.g., Wi-Fi, ISM bands, remote control links).
• Experience with CUAS platforms, sensor fusion, or related Defence systems.
• Strong background in systems integration, including RF front ends, SDRs, and embedded systems.
• Proficiency with tools such as MATLAB, GNU Radio, SDR platforms (e.g., Ettus/USRP, HackRF, BladeRF), spectrum analyzers, and direction-finding equipment.
• Ability and willingness to support high-priority operational events, which may include extended or irregular working hours.
• Excellent communication, leadership, and documentation skills.
• Experience with machine learning for RF signal classification.
• Knowledge of military communications protocols and electronic support measures (ESM) is preferred.
• Familiarity with DoD systems engineering frameworks and MIL-STD testing protocols.
• Singaporean only
• Open to contract, renewal

Our Commitment That Goes Beyond the Norm

• An environment where you will be working on cutting-edge technologies and architectures.
• Safe space where diverse perspectives are valued, and everyone’s unique contributions are celebrated.
• Meaningful work and projects that make a difference in people’s lives.
• A fun, passionate and collaborative workplace.
• Competitive remuneration and comprehensive benefits.

Working Location: Jurong East