RF Engineer
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Before you apply
LocationCambridge, England, United Kingdom
Work modehybrid
Typefull-time
DepartmentEngineering
EquityIncluded
Company size11–50 people
First seenSep 10, 2026 · 1mo ago
Verified live23h ago
At a glanceSummarised by Seekless from the posting.
Experience developing RF modules or sub-systems (PAs, LNAs, duplexers, filters, etc) intended for high-volume production
Knowledge of low-noise, low-power, and high-linearity design techniques used in 4G/5G RF front-end modules
A strong understanding of RF fundamentals, including impedance matching, Smith charts, passive RLC networks, linearity, and harmonic behaviour
Experience using RF simulation tools such as ADS, Microwave Office, or similar RF design environments
Hands-on experience with RF test equipment such as VNAs, spectrum analysers, and noise meters, including performing and troubleshooting measurements such as gain, noise figure (NF), IIP3, and isolation
Strong analytical and problem-solving skills with the ability to debug complex RF systems
Proactive approach to problem-solving with a resilient attitude towards ambiguity
Excellent problem-solving and analytical skills
Strong communication and collaboration abilities
Ability to work independently and as part of a team
Attention to detail and commitment to producing high-quality output
Broad electronics knowledge, with familiarity with industry interfaces such as MIPI RFFE considered an advantage
Skills
ADS
Microwave Office
MIPI RFFE
VNA
spectrum analyzer
noise meter
Benefits
Pension contributions
Stock options
Unlimited PTO
Remote flexible
Health insurance
Life insurance
Income protection
Meal benefits
RF Engineer
Location: Cambridge, UK
Team: Engineering
Job Type: Full-Time, Permanent
About Us:
Forefront RF is a fabless semiconductor company developing breakthrough RF technology that radically simplifies RF front-end architectures for mobile and connected devices. Our long-term vision is to empower anyone to treat global connectivity as a commodity, effortlessly adding it to any device. We lead through innovation, solving our customers’ toughest challenges, enabling them to stay ahead by pushing the boundaries of RF design.
Our Values:
Our values are the quiet nudge that help us to be our best in every interaction.
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One team: We listen, share, and build solutions together. Collaboration is at the heart of how we work. We support one another, embrace challenges and fun, and celebrate collective success.
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Innovation with intent: We operate at the forefront of technology, building innovative pathways to the future that meets real customer needs.
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Solutions driven: We develop world leading manufacturable products that deliver effortless connectivity.
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Customer focused: We act with integrity, hold ourselves accountable, and are guided by a deep commitment to deliver customer focused solutions.
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Sustainable: We design for longevity and reuse - leveraging globally connected RF technology to extend product lifecycles and reduce waste.
Role Overview:
We are looking for an RF engineer who is excited by the challenge of building cutting-edge RF modules in a fast-moving start-up environment. You will collaborate with IC designers, systems engineers, and software teams to integrate advanced RF technologies into high-performance multi-chip modules and help drive innovative wireless solutions to market.
Key Responsibilities:
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Design and develop RF front-end circuits and RF functional blocks to meet the specified performance requirements.
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Collaborate with internal and external IC design teams developing integrated digital tuneable capacitors, power amplifiers (PAs), low noise amplifiers (LNAs), RF switches, digital interfaces, and power management solutions.
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Integrate these design blocks into multi-chip modules, ensuring low-loss and high-performance implementations.
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Optimise module layouts to balance size, performance, and manufacturability.
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Work closely with applications, systems, algorithm, and software teams to optimise overall module performance within target applications.
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Partner with internal stakeholders and test teams to define, develop, and deliver comprehensive module test plans.
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Operate effectively in a fast-paced, highly innovative start-up/scale-up environment.
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Communicate and collaborate efficiently across multidisciplinary teams.
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Document results, design decisions, and technical work clearly, and share knowledge with team members.
Requirements
About you:
You’re excited by the opportunity to work with breakthrough technologies. You may thrive in this role if you have some or all the following:
Education & experience:
•
Experience developing RF modules or sub-systems (PAs, LNAs, duplexers, filters, etc) intended for high-volume production.
•
Knowledge of low-noise, low-power, and high-linearity design techniques used in 4G/5G RF front-end modules.
•
A strong understanding of RF fundamentals, including impedance matching, Smith charts, passive RLC networks, linearity, and harmonic behaviour.
•
Experience using RF simulation tools such as ADS, Microwave Office, or similar RF design environments.
•
Hands-on experience with RF test equipment such as VNAs, spectrum analysers, and noise meters, including performing and troubleshooting measurements such as gain, noise figure (NF), IIP3, and isolation.
•
Broad electronics knowledge, with familiarity with industry interfaces such as MIPI RFFE considered an advantage.
•
Strong analytical and problem-solving skills with the ability to debug complex RF systems.
People Skills:
•
Proactive approach to problem-solving with a resilient attitude towards ambiguity.
•
Excellent problem-solving and analytical skills.
•
Strong communication and collaboration abilities.
•
Ability to work independently and as part of a team.
•
Attention to detail and commitment to producing high-quality output.
Benefits
•
Competitive salary and pension contributions.
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Company Share Option Scheme.
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25 days holiday + bank holidays.
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Weekly company lunches.
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Flexible work hours and remote work options.
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Private medical insurance
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Life assurance x 4
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Income protection
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Healthshield Cash plan
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Heka flexible benefits platform
We believe in equal opportunities
We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, sex, gender identity, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status, or any other basis covered by appropriate law. All employment is decided on the basis of qualifications, merit, and business need.
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