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RF Researcher

L3Harris Technologies

Engineering Jobs

RF Researcher

full-timePosted: Jan 15, 2026

Job Description

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title – RF Researcher

Job Location – Tewkesbury, UK

Job ID – 31078

About this opportunity and L3Harris UK

From 11 UK sites, our team of nearly 1,000 people delivers unique capabilities across space, air, land, sea and cyber for military, security and commercial customers across the UK and worldwide.

L3Harris in Tewkesbury is our HQ for our Intelligence & Cyber International division. In the land domain, our T7 and T4 multi-mission robots deliver next-generation remote capabilities and uncompromised performance. We design and manufacture world-leading land force protection systems, cyber and electromagnetic activities (CEMA), electronic warfare (EW) and encryption capabilities. Our cyber capabilities provide an information advantage in the fields of kinetic conflict, cyber warfare, force protection and counterterrorism.

We are looking for researchers/algorithm developers with a Radio Frequency (RF) background to join our electronic warfare engineering team.

A few of our employee benefits are:

  • £3,000 to £6,000 DV Bonus – please note this level of clearance isn’t essential for this role. This bonus is subject to individual clearance and project requirements – discussed upon application.
  • Hybrid working where possible, three days onsite per week but this is project dependent.
  • Half day finish on a Friday
  • 25 days holiday per year (plus bank holidays), increasing with long service and with the opportunity to buy/sell up to 5 days
  • Private medical insurance with optional family cover
  • Pension scheme of up to 8% employer contribution
  • Life Assurance 4x salary (flexible up to 10x)
  • Group income protection
  • Flexible opt-in extras such as a health care cash plan, dental insurance, gym membership, critical illness cover, cycle to work scheme and electric vehicle scheme
  • Employee Family Assistance Program providing mental health and wellbeing support 
  • Professional membership reimbursement (discretionary)

What the role will involve

The responsibilities of your role will include the following:

  • Lead or support research in cutting edge technology in the fields of RF signal analysis, propagation and electronic countermeasures in the communications domain.
  • Develop algorithms and/or simulations (using MATLAB, Python or other similar tools) to demonstrate new functionality or analyse digitised RF data
  • Review and analyse the latest research in the fields of RF signal analysis and electronic warfare (EW)
  • Produce technical documentation and present project outcomes to customers and internally
  • Lead or contribute to the generation of technical proposals and bids
  • Interface with customers and other industry partners within the defence EW arena
  • Identify opportunities to pull through low Technology Readiness Level (TRL) technology into existing and future EW products

What you’ll bring 

The role requires the following experience and skills:

  • An understanding of RF in the communications frequency ranges to include some of either modulation, demodulation, signal analysis, propagation and software defined radios (SDRs).
  • An understanding of communications electronic countermeasures
  • Proven track record in the generation of algorithms to process and analyse RF data, ideally in the fields of communication systems or communications EW.
  • Ability to understand and sift through relevant scientific papers covering state of the art in the fields of RF, software defined radios (SDRs) and electronic countermeasures
  • Some awareness of software (ideally Python coding experience), firmware (FPGA) and electronic design (digital and RF).
  • Excellent communication skills with the ability to present complex scientific principles to a wide audience including customers, engineers and senior managers
  • Proactive self-starter who can take responsibility for their work and growing their network both internally and externally.

Important to know

Due to the nature of our work many our roles require a UK nationality and the ability to obtain a security clearance. Applicants who accept a conditional offer of employment must meet the requirement of right to work in the UK and must meet eligibility requirements for access to classified information and will be subject to government security checks.

#LI-Hybrid

#LI-RT1

#SpecialistRFResearch

L3Harris Technologies is proud to be an Equal Opportunity Employer. We are committed to maintaining a workplace that is free from unlawful discrimination and offers equal opportunities for all. Applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief, and marriage and civil partnerships.

Locations

  • Tewkesbury, ENG, United States

Salary

Estimated Salary Rangemedium confidence

70,000 - 110,000 USD / yearly

Source: AI Estimation

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Understanding of RF in communications frequency ranges (modulation, demodulation, signal analysis, propagation, software defined radios)intermediate
  • Understanding of communications electronic countermeasuresintermediate
  • Proven track record in generating algorithms to process and analyse RF data (communication systems or communications EW)intermediate
  • Ability to understand and sift through scientific papers on RF, SDRs, and electronic countermeasuresintermediate
  • Awareness of software (Python), firmware (FPGA), and electronic design (digital and RF)intermediate
  • Excellent communication skills for presenting complex principlesintermediate
  • Proactive self-starter with networking abilityintermediate

Responsibilities

  • Lead or support research in RF signal analysis, propagation, and electronic countermeasures in communications
  • Develop algorithms/simulations (MATLAB, Python) for RF data analysis
  • Review and analyse latest research in RF signal analysis and EW
  • Produce technical documentation and present outcomes
  • Lead/contribute to technical proposals and bids
  • Interface with customers and industry partners in defence EW
  • Identify opportunities to integrate low TRL technology into EW products

Benefits

  • general: £3,000 to £6,000 DV Bonus
  • general: Hybrid working (3 days onsite/week, project dependent)
  • general: Half day Friday
  • general: 25 days holiday + bank holidays (buy/sell up to 5 days)
  • general: Private medical insurance (optional family cover)
  • general: Pension up to 8% employer contribution
  • general: Life Assurance 4x salary (up to 10x)
  • general: Group income protection
  • general: Flexible extras (health cash plan, dental, gym, critical illness, cycle to work, EV scheme)
  • general: Employee Family Assistance Program
  • general: Professional membership reimbursement

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L3Harris Technologies logo

RF Researcher

L3Harris Technologies

Engineering Jobs

RF Researcher

full-timePosted: Jan 15, 2026

Job Description

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title – RF Researcher

Job Location – Tewkesbury, UK

Job ID – 31078

About this opportunity and L3Harris UK

From 11 UK sites, our team of nearly 1,000 people delivers unique capabilities across space, air, land, sea and cyber for military, security and commercial customers across the UK and worldwide.

L3Harris in Tewkesbury is our HQ for our Intelligence & Cyber International division. In the land domain, our T7 and T4 multi-mission robots deliver next-generation remote capabilities and uncompromised performance. We design and manufacture world-leading land force protection systems, cyber and electromagnetic activities (CEMA), electronic warfare (EW) and encryption capabilities. Our cyber capabilities provide an information advantage in the fields of kinetic conflict, cyber warfare, force protection and counterterrorism.

We are looking for researchers/algorithm developers with a Radio Frequency (RF) background to join our electronic warfare engineering team.

A few of our employee benefits are:

  • £3,000 to £6,000 DV Bonus – please note this level of clearance isn’t essential for this role. This bonus is subject to individual clearance and project requirements – discussed upon application.
  • Hybrid working where possible, three days onsite per week but this is project dependent.
  • Half day finish on a Friday
  • 25 days holiday per year (plus bank holidays), increasing with long service and with the opportunity to buy/sell up to 5 days
  • Private medical insurance with optional family cover
  • Pension scheme of up to 8% employer contribution
  • Life Assurance 4x salary (flexible up to 10x)
  • Group income protection
  • Flexible opt-in extras such as a health care cash plan, dental insurance, gym membership, critical illness cover, cycle to work scheme and electric vehicle scheme
  • Employee Family Assistance Program providing mental health and wellbeing support 
  • Professional membership reimbursement (discretionary)

What the role will involve

The responsibilities of your role will include the following:

  • Lead or support research in cutting edge technology in the fields of RF signal analysis, propagation and electronic countermeasures in the communications domain.
  • Develop algorithms and/or simulations (using MATLAB, Python or other similar tools) to demonstrate new functionality or analyse digitised RF data
  • Review and analyse the latest research in the fields of RF signal analysis and electronic warfare (EW)
  • Produce technical documentation and present project outcomes to customers and internally
  • Lead or contribute to the generation of technical proposals and bids
  • Interface with customers and other industry partners within the defence EW arena
  • Identify opportunities to pull through low Technology Readiness Level (TRL) technology into existing and future EW products

What you’ll bring 

The role requires the following experience and skills:

  • An understanding of RF in the communications frequency ranges to include some of either modulation, demodulation, signal analysis, propagation and software defined radios (SDRs).
  • An understanding of communications electronic countermeasures
  • Proven track record in the generation of algorithms to process and analyse RF data, ideally in the fields of communication systems or communications EW.
  • Ability to understand and sift through relevant scientific papers covering state of the art in the fields of RF, software defined radios (SDRs) and electronic countermeasures
  • Some awareness of software (ideally Python coding experience), firmware (FPGA) and electronic design (digital and RF).
  • Excellent communication skills with the ability to present complex scientific principles to a wide audience including customers, engineers and senior managers
  • Proactive self-starter who can take responsibility for their work and growing their network both internally and externally.

Important to know

Due to the nature of our work many our roles require a UK nationality and the ability to obtain a security clearance. Applicants who accept a conditional offer of employment must meet the requirement of right to work in the UK and must meet eligibility requirements for access to classified information and will be subject to government security checks.

#LI-Hybrid

#LI-RT1

#SpecialistRFResearch

L3Harris Technologies is proud to be an Equal Opportunity Employer. We are committed to maintaining a workplace that is free from unlawful discrimination and offers equal opportunities for all. Applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief, and marriage and civil partnerships.

Locations

  • Tewkesbury, ENG, United States

Salary

Estimated Salary Rangemedium confidence

70,000 - 110,000 USD / yearly

Source: AI Estimation

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Understanding of RF in communications frequency ranges (modulation, demodulation, signal analysis, propagation, software defined radios)intermediate
  • Understanding of communications electronic countermeasuresintermediate
  • Proven track record in generating algorithms to process and analyse RF data (communication systems or communications EW)intermediate
  • Ability to understand and sift through scientific papers on RF, SDRs, and electronic countermeasuresintermediate
  • Awareness of software (Python), firmware (FPGA), and electronic design (digital and RF)intermediate
  • Excellent communication skills for presenting complex principlesintermediate
  • Proactive self-starter with networking abilityintermediate

Responsibilities

  • Lead or support research in RF signal analysis, propagation, and electronic countermeasures in communications
  • Develop algorithms/simulations (MATLAB, Python) for RF data analysis
  • Review and analyse latest research in RF signal analysis and EW
  • Produce technical documentation and present outcomes
  • Lead/contribute to technical proposals and bids
  • Interface with customers and industry partners in defence EW
  • Identify opportunities to integrate low TRL technology into EW products

Benefits

  • general: £3,000 to £6,000 DV Bonus
  • general: Hybrid working (3 days onsite/week, project dependent)
  • general: Half day Friday
  • general: 25 days holiday + bank holidays (buy/sell up to 5 days)
  • general: Private medical insurance (optional family cover)
  • general: Pension up to 8% employer contribution
  • general: Life Assurance 4x salary (up to 10x)
  • general: Group income protection
  • general: Flexible extras (health cash plan, dental, gym, critical illness, cycle to work, EV scheme)
  • general: Employee Family Assistance Program
  • general: Professional membership reimbursement

Target Your Resume for "RF Researcher" , L3Harris Technologies

Get personalized recommendations to optimize your resume specifically for RF Researcher. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "RF Researcher" , L3Harris Technologies

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Answer 10 quick questions to check your fit for RF Researcher @ L3Harris Technologies.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.