11 Radio Frequency Engineer jobs in Singapore

Senior Radio Frequency Design Engineer
About Doodle Labs
Doodle Labs is the global leader in high-performance private wireless systems. We build cutting-edge mesh networks for robotics, drones, and the Industrial Internet of Things. Doodle Labs has experienced rapid growth over the past five years as our radio systems have been adopted by Fortune 500 companies (e.g. Airbus, General Electric) and industry-leading innovators (e.g. Boston Dynamics, FLIR).
Your Opportunity
Doodle Labs develops market-leading broadband mesh radios. Products include handheld mesh hotspots (Wearable Smart Radio) and tiny embedded multi-band radios for robots (Helix). Your opportunity is to build novel RF products while implementing Doodle Labs’ patented RF techniques. You will design and develop next generation wireless communication systems utilizing Wi-Fi 4/5/6/6E chipsets and protocols. As a senior member of the engineering team, you’ll have the opportunity to lead projects with the support of a cross-functional team of RF engineers, technicians, software engineers, etc.
Job Description
Perform detailed radio frequency translation plans and architectures
Evaluate gain, noise parameters (NF, SNR), dynamic range, linearity, and power consumption analyses to execute a predictable, robust design
Collaborate with CAD engineers and drive PCB implementation of the design with emphasis on clean power supply design, interconnect design for required EMI and RF transmission performance
Participate in design reviews and prepare design documentations at every stage of development until the final prototype test and characterization
Perform parametric evaluation of transceivers, like Pout, IMD/IP3, EVM, noise parameters with spectrum analyser, modulation analyser and perform wireless link level functional evaluation to complete the product characterization
Collaborate with product engineers for various certification procedures and NPI, followed by the Transfer of Technology (ToT) for large quantity production
Job Requirements
Bachelor’s, Master’s, or PhD in Electronics Communication Engineering or Digital Communication Engineering
Minimum 8 year of experience as a RF system hardware with proven track record of meeting industry delivery standards in the relevant areas
Good interpersonal and creative skills with the ability to multitask in a demanding and fast paced environment
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About Doodle Labs

Doodle Labs is the global leader in high-performance private wireless systems. We build cutting-edge mesh networks for robotics, drones, and the Industrial Internet of Things. Doodle Labs has experienced rapid growth over the past five years as our radio systems have been adopted by Fortune 500 companies (e.g. Airbus, General Electric) and industry-leading innovators (e.g. Boston Dynamics, FLIR).

Your Opportunity

Doodle Labs develops market-leading broadband mesh radios. Products include handheld mesh hotspots (Wearable Smart Radio) and tiny embedded multi-band radios for robots (Helix). Your opportunity is to build novel RF products while implementing Doodle Labs’ patented RF techniques. You will design and develop next generation wireless communication systems utilizing Wi-Fi 4/5/6/6E chipsets and protocols. As a senior member of the engineering team, you’ll have the opportunity to lead projects with the support of a cross-functional team of RF engineers, technicians, software engineers, etc.

Job Description

· Perform detailed radio frequency translation plans and architectures

· Evaluate gain, noise parameters (NF, SNR), dynamic range, linearity, and power consumption analyses to execute a predictable, robust design

· Collaborate with CAD engineers and drive PCB implementation of the design with emphasis on clean power supply design, interconnect design for required EMI and RF transmission performance

· Participate in design reviews and prepare design documentations at every stage of development until the final prototype test and characterization

· Perform parametric evaluation of transceivers, like Pout, IMD/IP3, EVM, noise parameters with spectrum analyser, modulation analyser and perform wireless link level functional evaluation to complete the product characterization

· Collaborate with product engineers for various certification procedures and NPI, followed by the Transfer of Technology (ToT) for large quantity production

Job Requirements

· Bachelor’s, Master’s, or PhD in Electronics Communication Engineering or Digital Communication Engineering

· Minimum 8 year of experience as a RF system hardware with proven track record of meeting industry delivery standards in the relevant areas

· Good interpersonal and creative skills with the ability to multitask in a demanding and fast paced environment

1. Develop advanced signal processing algorithms for wearable devices, including data analysis, action classification, and recognition.
2. Implement hardware platforms to boost algorithm performance and functionality.
3. Integrate algorithms into products to maximize their potential.

• Bachelor's degree or higher in Electronic Engineering, Microelectronics, Biomedical Engineering, Automation, Signal Processing, Medical Information Engineering, or related fields.
• Strong analytical mindset with a passion for scientific exploration and technological excellence.
• Ability to apply the latest global research findings with logical clarity.
• Prior experience in signal processing, mathematical modeling, or acoustic-related projects is beneficial.

Signal Processing Specialist

Join us in developing innovative algorithms for Coriolis flowmeters. As a signal processing specialist, you will design and implement efficient signal processing techniques to optimize flow measurement.

• Key Responsibilities:
• Design and implement signal processing algorithms for Coriolis flowmeters
• Develop embedded software/firmware for flowmeter transmitters
• Collaborate with electronics engineers on PCB, DSP/FPGA, and microcontroller integration

Requirements:

• Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, Applied Physics, or related field
• Strong foundation in signal processing, control theory, and applied mathematics
• Proficiency in C/C++, Python, or embedded programming

What We Offer:

• Opportunity to work on cutting-edge innovations in flow measurement
• Exposure to both software and hardware R&D in a deep-tech environment
• Career growth opportunities in a fast-growing company

• 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.

• 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.

• 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.

• 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.

• Degree in Electrical Engineering, RF Engineering, or a related field.
• 5+ years in RF PA circuit design and validation.
• Hands-on experience with RF power amplifier development, including load-pull, impedance matching, and performance tuning.
• Proficient in RF simulation tools (ADS, AWR) and experienced with EM solvers (HFSS or CST a plus).
• Skilled in testing with lab instruments such as VNAs, spectrum analyzers, and RF signal generators.
• Proven ability to work with layout, digital, and product engineering teams.
• Committed to robust documentation and iterative improvement.

Radio Frequency Power Amplifier Design Engineer
About Doodle Labs
Doodle Labs is the global leader in high-performance private wireless systems. We build cutting-edge mesh networks for robotics, drones, and the Industrial Internet of Things. Doodle Labs has experienced rapid growth over the past five years as our radio systems have been adopted by Fortune 500 companies (e.g. Airbus, General Electric) and industry-leading innovators (e.g. Boston Dynamics, FLIR).
Your Opportunity
Doodle Labs develops market-leading broadband mesh radios. Products include handheld mesh hotspots (Wearable Smart Radio) and tiny embedded multi-band radios for robots (Helix). Your opportunity is to build novel RF products while implementing Doodle Labs’ patented RF techniques. You 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.
Job Description
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.
Job Requirements
Degree in Electrical Engineering, RF Engineering, or a related field.
5+ years in RF PA circuit design and validation.
Hands-on experience with RF power amplifier development, including load-pull, impedance matching, and performance tuning.
Proficient in RF simulation tools (ADS, AWR) and experienced with EM solvers (HFSS or CST a plus).
Skilled in testing with lab instruments such as VNAs, spectrum analyzers, and RF signal generators.
Proven ability to work with layout, digital, and product engineering teams.
Committed to robust documentation and iterative improvement.
#J-18808-Ljbffr

About Doodle Labs

Doodle Labs is the global leader in high-performance private wireless systems. We build cutting-edge mesh networks for robotics, drones, and the Industrial Internet of Things. Doodle Labs has experienced rapid growth over the past five years as our radio systems have been adopted by Fortune 500 companies (e.g. Airbus, General Electric) and industry-leading innovators (e.g. Boston Dynamics, FLIR).

Your Opportunity

Doodle Labs develops market-leading broadband mesh radios. Products include handheld mesh hotspots (Wearable Smart Radio) and tiny embedded multi-band radios for robots (Helix). Your opportunity is to build novel RF products while implementing Doodle Labs’ patented RF techniques. You 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.

Job Description

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.

Job Requirements

• Degree in Electrical Engineering, RF Engineering, or a related field.
• 5+ years in RF PA circuit design and validation.
• Hands-on experience with RF power amplifier development, including load-pull, impedance matching, and performance tuning.
• Proficient in RF simulation tools (ADS, AWR) and experienced with EM solvers (HFSS or CST a plus).
• Skilled in testing with lab instruments such as VNAs, spectrum analyzers, and RF signal generators.
• Proven ability to work with layout, digital, and product engineering teams.
• Committed to robust documentation and iterative improvement.

Location: Loyang, Singapore

We are looking for an experienced and highly skilled Calibration & Service Engineer, focusing on the sophisticated range of Radio Frequency (RF) and Test & Measurement (T&M) equipment.

As a hands-on technical expert, you will ensure the operational excellence and quality of service delivery:

• RF Calibration & Repair: Execute complex depot and on-site repair and calibration services for a wide portfolio of T&M equipment, specifically within the RF and wireless domain. Your goal is consistently high quality with minimal re-work.
• Technical Troubleshooting: Conduct site troubleshooting at customer locations to quickly diagnose and resolve equipment failures and performance issues.
• Quality & Traceability: Ensure all service work complies strictly with ISO 9001 standards and maintain meticulous traceability of all calibration and repair records.
• Operational Efficiency: Optimize service processes and asset utilization within the service department to meet committed turnaround times (TAT).
• Knowledge Transfer: Serve as a technical resource, providing regional service training and technical support to internal Rohde & Schwarz subsidiaries and service centers.
• New Product Readiness: Evaluate the service capability of new products to ensure smooth future integration into the service pipeline.

• Education: Minimum Diploma in Electronics, Communication Engineering, or a closely related field.
• Experience: Minimum 3 years of working experience in the RF, Wireless, or Test & Measurement (T&M) industry.
• RF & T&M Knowledge: Strong knowledge of RF principles (e.g., signal generation, spectrum analysis, vector network analysis) and metrology concepts related to T&M technologies.
• Repair Skills: Proven ability with equipment repair, including good soldering skills for component-level work.

Location: Loyang, Singapore

We are looking for an experienced and highly skilled Calibration & Service Engineer , focusing on the sophisticated range of Radio Frequency (RF) and Test & Measurement (T&M) equipment.

As a hands-on technical expert, you will ensure the operational excellence and quality of service delivery:

• RF Calibration & Repair: Execute complex depot and on-site repair and calibration services for a wide portfolio of T&M equipment, specifically within the RF and wireless domain. Your goal is consistently high quality with minimal re-work.
• Technical Troubleshooting: Conduct site troubleshooting at customer locations to quickly diagnose and resolve equipment failures and performance issues.
• Quality & Traceability: Ensure all service work complies strictly with ISO 9001 standards and maintain meticulous traceability of all calibration and repair records.
• Operational Efficiency: Optimize service processes and asset utilization within the service department to meet committed turnaround times (TAT).
• Knowledge Transfer: Serve as a technical resource, providing regional service training and technical support to internal Rohde & Schwarz subsidiaries and service centers.
• New Product Readiness: Evaluate the service capability of new products to ensure smooth future integration into the service pipeline.

• Education: Minimum Diploma in Electronics, Communication Engineering, or a closely related field.
• Experience: Minimum 3 years of working experience in the RF, Wireless, or Test & Measurement (T&M) industry.
• RF & T&M Knowledge: Strong knowledge of RF principles (e.g., signal generation, spectrum analysis, vector network analysis) and metrology concepts related to T&M technologies.
• Repair Skills: Proven ability with equipment repair, including good soldering skills for component-level work.