633 Wireless Communications jobs in Singapore

Overview:

We are seeking a skilled RF Engineer to support fault diagnosis and performance optimization of advanced communications systems. This role involves hands-on technical troubleshooting, customer engagement, and vendor coordination to ensure timely resolution of system issues.

Key Responsibilities:

• Diagnose and resolve faults in RF and communications systems
• Liaise with customers and equipment vendors to identify and solve technical problems
• Operate and interpret results from spectrum analyzers and related RF test equipment
• Prepare detailed job reports documenting findings and corrective actions
• Provide monthly status updates and performance summaries to stakeholders

Qualifications:

• Experience in RF engineering or communications systems support
• Strong analytical and problem-solving skills
• Effective communication and stakeholder management abilities
• Familiarity with spectrum analyzers and RF diagnostic tools

Overview:
We are seeking a skilled RF Engineer to support fault diagnosis and performance optimization of advanced communications systems. This role involves hands-on technical troubleshooting, customer engagement, and vendor coordination to ensure timely resolution of system issues.

Key Responsibilities:

• Diagnose and resolve faults in RF and communications systems
• Liaise with customers and equipment vendors to identify and solve technical problems
• Operate and interpret results from spectrum analyzers and related RF test equipment
• Prepare detailed job reports documenting findings and corrective actions
• Provide monthly status updates and performance summaries to stakeholders

Qualifications:

• Experience in RF engineering or communications systems support
• Strong analytical and problem-solving skills
• Effective communication and stakeholder management abilities
• Familiarity with spectrum analyzers and RF diagnostic tools

RF Engineer – Power Amplifier Design
Location: On site
Company: Doodle Labs – Robotics and Defense Technology

About Doodle Labs
Doodle Labs is a fast-growing technology company at the forefront of robotics and defense innovation. We build mission-critical communication systems that enable autonomous systems to operate in challenging environments. Our solutions are deployed worldwide in defense, industrial, and commercial applications, providing robust connectivity in demanding conditions.
We are seeking a Radio Frequency (RF) Engineer with a focus on Power Amplifier (PA) Design to lead the development of high-efficiency, high-linearity RF PA modules from concept through to production.

About the Job
The RF Engineer – PA Design will design, simulate, validate, and optimize power amplifier circuits operating between 0.2 and 7 GHz, with output power up to 50W. This role will be hands-on with testing, debugging, load-pull analysis, and documentation, and will require deep collaboration with system and hardware teams to deliver high-performance modules for advanced wireless systems.

What You’ll Do
1. Design and Develop PA Circuits

• Lead PA module development including topology selection, schematic capture, and PCB layout.
• Design for efficiency, gain, and linearity across a broad frequency spectrum.
• Apply advanced impedance matching, stability analysis, and EM simulation techniques.

2. Simulation and Validation

• Use simulation tools such as ADS, AWR, and optionally HFSS or CST for circuit and electromagnetic analysis.
• Perform load-pull measurements, S-parameter analysis, and linearity testing.
• Validate designs in the lab using VNAs, spectrum analyzers, signal generators, and power meters.
  

3. Collaborate Across Teams

• Work closely with PCB layout engineers to ensure best practices in high-frequency design.
• Coordinate with system architects and digital/RF engineers to meet product specifications.
• Support product engineering with documentation, design reviews, and lessons learned.

4. Deliver Key Milestones

• First 30 Days: Familiarize with existing PA architectures, tools, and lab setup. Begin schematic-level design of new PA circuit.
• First 60 Days: Complete first-pass design, initiate simulations, and guide initial PCB layout.
• First 90 Days: Validate the prototype in lab conditions; perform debugging, tuning, and generate a detailed test and evaluation report.

Who You Are

• PA Design Expert: Hands-on experience with RF power amplifier development, including load-pull, impedance matching, and performance tuning.
• Tool Savvy: Proficient in RF simulation tools (ADS, AWR) and experienced with EM solvers (HFSS or CST a plus).
• Lab-Ready Engineer: Skilled in testing with lab instruments such as VNAs, spectrum analyzers, and RF signal generators.
• Cross-Functional Collaborator: Proven ability to work with layout, digital, and product engineering teams.
• Detail-Oriented Designer: Committed to robust documentation and iterative improvement.

Why Join Us?

• High-Impact Role: Help define the next generation of high-performance wireless systems.
• Innovation Environment: Solve advanced RF engineering challenges in a collaborative setting.
• Career Growth: Work at the intersection of RF design, systems engineering, and product development.
• Mission-Critical Tech: Build solutions that matter for defense, robotics, and industrial autonomy.

Required Qualifications

• Education: Degree in Electrical Engineering, RF Engineering, or a related field.
• Experience: 5+ years in RF PA circuit design and validation.

Are you ready to amplify your impact? Join Doodle Labs and shape the performance of tomorrow’s wireless communication systems.

We are seeking a skilled RF circuit designer to join our team. The ideal candidate will have experience in designing, analyzing, and simulating RF circuits and systems for communication applications.

• Design and develop RF circuits and systems for communication applications such as cellular, satellite, radar, Wi-Fi, IoT etc
• Develop and integrate RF subsystems such as filters, antennas, amplifiers, mixers, and transceivers.
• Work on link budget analysis and RF propagation modeling to support communication system design.
• Conduct laboratory testing using spectrum analyzers, network analyzers, signal generators, and oscilloscopes.
• Optimize system performance by evaluating signal integrity, interference, and power efficiency.

Key Requirements:

• Relevant experience in RF engineering
• Experience with satellite or radar communication systems.
• Familiarity with software-defined radio (SDR) platforms.
• Knowledge of embedded systems and firmware for RF control.
• Understanding of RF theory, electromagnetic wave propagation, modulation techniques, and wireless protocols.

Location: Jurong East

Industry: Engineering

• Design, analyze, and simulate RF circuits and systems for communication applications such as cellular, satellite, radar, Wi-Fi, IoT etc
• Develop and integrate RF subsystems such as filters, antennas, amplifiers, mixers, and transceivers.
• Work on link budget analysis and RF propagation modeling to support communication system design.
• Conduct laboratory testing using spectrum analyzers, network analyzers, signal generators, and oscilloscopes.
• Optimize system performance by evaluating signal integrity, interference, and power efficiency.
• Support regulatory compliance efforts (e.g., FCC, ETSI, ITU) and documentations for certification.
• Provide technical support during system integration and field-testing phases.

Requirements

• Relevant experience in RF engineering
• Experience with satellite or radar communication systems.
• Familiarity with software-defined radio (SDR) platforms.
• Knowledge of embedded systems and firmware for RF control.
• Understanding of RF theory, electromagnetic wave propagation, modulation techniques, and wireless protocols.
• Proficiency with simulation tools (e.g., CST, HFSS, ADS, MATLAB) and RF testing equipment.
• Experience with PCB layout for RF circuits and familiarity with design tools like Altium or Cadence.
• Knowledge of communication standards (e.g., LTE, 5G, Bluetooth, Zigbee, WLAN, GPS).

To Apply or find out more information on this role, please email us or send in your updated resume to:

Shelly Tan Bee Leng (Reg. No. R2199458)

STAR CAREER CONSULTING PTE LTD (EA License: 20C0353)

Our client is actively searching for a Field Application Engineer (Radio Frequency) to join their team!

If you are a dynamic individual seeking a new career opportunity, read further!

The RF Field Application Engineer (FAE) will work closely with customers to understand their technical requirements, assist in product development, and provide pre- and post-sales technical support for RF Wireless solutions. This role combines engineering expertise with strong customer-facing skills to ensure successful implementation, troubleshooting, design-in and performance optimization for various applications.

The responsibilities of this role are:

Customer Support & Consultation

• Provide front-line technical support for RF Wireless customers.
• Provide expert-level pre- and post-sales support, technical guidance for RF-related applications.
• Understanding customers’ use cases and expected applications and help to troubleshoot at all levels.
• Work proactively to propose solutions such as demos, proof-of-concepts (POCs), technical designs, and solution proposals.

Design & Development

• Ability to identify signal chain of RF Wireless Equipment
• Develop reference designs and demo applications to showcase RF Wireless solutions for specific customer use cases.
• Assist customers in implementing RF Wireless design-in, including writing technical specification, recommending suitable components and modules, integrating RF Wireless component designs into larger systems

Training & Documentation

• Prepare and execute technical seminars, workshops, and training sessions to educate customers on RF Wireless technologies, design flow, application / product training and best practices.
• Create and maintain user-friendly technical documentation, application notes, and whitepapers to help customers with their RF Wireless implementation process.

Product Feedback & Market Insights

• Collect and communicate customer feedback on product features, requirements, and issues to the product management and engineering teams.
• Assist in the development of new RF Wireless/BT/WLAN products or features based on customer needs and market trends.
• Stay up to date with the latest RF Wireless/BT/WLAN technology trends, tools, and industry best practices.

Collaboration

• Work closely with sales and marketing teams to provide technical support during the sales process, including product demonstrations and customer presentations.
• Demonstrated ability to take initiative and work independently as well as part of a team.
• Positive attitude and eagerness to contribute to a collaborative workplace.
  

The ideal candidate will need to have the following qualities and experience:

• 5+ years experience in RF/Microwave electronics engineering applications area.
• Previous experience in a customer-facing is a must.
• Possess strong technical knowledge of RF Wireless technologies, e.g. Cellular/RF Microwave and understanding RF principles such as RF/microwave circuit design/schematic layout, applications and test results.
• Familiarity with RF test equipment (VNAs, spectrum analysers, signal generators, etc.)
• Good experience in RMA and recall issue handling, 3rd party rework support
• Knowledge of IoT Technologies (Bluetooth/WLAN/Lorawan/Sigfox) will be an advantage
• Understanding of industry-specific applications, such as automotive ADAS, 5G, or satellite systems will be a plus
• The FAE should have the ability to work with Sales and Marketing representatives to develop new customers and business
• Strong communication and interpersonal skills, with the ability to explain complex technical concepts to non-technical stakeholders.
• Ability to travel is needed to support customers.

All applicants' CV will be treated with the strictest confidentiality. We regret to inform that only shortlisted candidates will be contacted.