Experienced Radio Frequency Engineer

About Halter

At Halter, we’re on a mission to enable farmers and graziers to run the most productive and sustainable operations. Our customers are using Halter to break free from the time-intensive constraints of conventional practices. Imagine watching 500 cattle stand up and walk calmly towards their next break? No quad bikes, no dogs, no fences. Just a group of cattle walking at their own pace. People say it looks like magic. Our customers are revolutionizing grazing with Halter. It's changing lives and transforming an industry. People join Halter to do meaningful work. By joining us you’ll be solving challenging problems within a talented team and a culture built for high performance. Our team out-think, out-work and out-care. We’re committed to delivering real change in the world - this isn’t easy, and in truth, we love that it’s hard.

We’re backed to deliver on a mission that matters by Tier 1 investors including Founders Fund, Bessemer Venture Partners, BOND, DCVC, Blackbird, Promus Ventures, Rocket Lab’s Peter Beck and Icehouse ventures.

To find out more, visit our LinkedIn & Instagram.

About the Role

At Halter, we’re changing the way the world farms, combining deep thinking, fast execution, and world class engineering to transform agriculture through technology.

As we scale rapidly across global markets, we’re looking for a Experienced RF Engineer to drive innovation in our wireless systems and help shape the future of animal management technology. This is a senior technical leadership role, you’ll own the design, optimisation, and validation of all RF and antenna systems across Halter’s products.

From concept through to mass production, you’ll ensure that our devices perform reliably in challenging real world farm environments. You’ll collaborate closely with multidisciplinary teams and external parties to deliver robust wireless communication systems and antenna designs that meet demanding performance, cost, and manufacturability targets.

What your day could look like:

• Lead the design, simulation, prototyping, and validation of high performance antennas and RF systems for Halter’s wearable and infrastructure products.

• Define system level RF requirements and architecture in collaboration with firmware, systems, and mechanical teams.

• Drive electromagnetic simulation, impedance matching, antenna tuning, and over the air performance optimisation.

• Conduct field testing and data analysis to validate designs under real world conditions.

• Collaborate with manufacturing partners to ensure robust design-for-manufacture and testing of RF assemblies, including travel.

• Own and maintain RF performance metrics, antenna validation processes, and compliance testing (EMC, regulatory).

• Mentor and develop other engineers in RF design principles and best practices.

• Partner with global suppliers and test labs to deliver high-volume production ready antenna solutions.

Who we're looking for:

• An experienced RF or Antenna Engineer with proven expertise taking antenna systems from concept through to high volume production.

• Deep understanding of electromagnetic fundamentals, RF propagation, impedance matching, and PCB/integrated antenna design.

• Hands on experience with RF simulation and analysis tools

• Proficiency with test and measurement equipment such as VNAs, spectrum analyzers and signal generators.

• Experience designing RF systems for IoT, wearable, or low power wireless products (BLE, LoRa, GPS, Wi-Fi, sub-GHz, LTE).

• Strong analytical, documentation, and communication skills.

• Ability to thrive in a fast-paced, highly collaborative environment where you take ownership and drive results.

• Willingness to travel internationally (e.g., China, Thailand) to support manufacturing and validation.

Join our team

Halter is committed to promoting a diverse and inclusive workplace — a place where we can each be ourselves and do the best work of our lives. Research shows that while men apply to jobs when they meet an average of 60% of the requirements, women and under-represented groups of candidates tend to only apply when they meet every requirement. If you think you have what it takes but don’t necessarily tick every requirement on this job description, please still get in touch and apply to Halter. We’d love to chat to see if you’ll be an epic fit!

If this opportunity sounds like you, please apply below by sending through your cover letter explaining why you’re excited about this role and working at Halter, along with your CV, and we’ll be in touch!

Please also feel free to check out the careers page for more information on working at Halter and don't forget to follow us on LinkedIn & Instagram.

Why our team loves working at Halter:

• Work that genuinely matters. Every now and again a company comes along that transforms an entire industry and leaves the world in a better place. Our team gets to be part of something truly meaningful, helping farmers improve their livelihoods, spend more time with their families, and build more sustainable operations.

• Spectacular people solving hard problems. Our culture is designed for talented people to do work that changes lives. The team is filled with diverse, kind, and driven people who push each other to do their best work. You'll be thrown into the deep end, tackling complex challenges and building something tangible that solves real problems.

• You'll grow here. Autonomy, mastery, and learning define how we work. You'll have the freedom to work on interesting problems, master new skills, and continuously develop yourself, both through your role and our personal growth fund.

• This isn't easy, and we love that it's hard. Working at Halter will be the most rewarding and the most challenging work of your life. We move fast, take bold bets, and work hard to reshape an entire industry. As one team member put it: "Joining Halter is a bit like strapping yourself to a rocket ship, but it's an epic journey to be a part of!"