Pre-Sales Engineer

CRFS as a Pre-Sales Application Engineer, a hands-on, customer-facing technical role that bridges our product portfolio and our customers' real-world needs. You will be a technical authority in the sales cycle, helping to turn customer requirements into credible solutions built around CRFS products. Your responsibilities will include supporting the sales team technically, leading customer meetings and demonstrations, developing deep expertise in our products, and troubleshooting under pressure.

Responsibilities

• Support the sales team technically from initial qualification through to contract award, leading or contributing to customer meetings, presentations, workshops, and live demonstrations.
• Develop deep, hands-on expertise across the full CRFS product portfolio, building and demonstrating solutions, creating realistic demonstration scenarios, and producing application notes and technical collateral.
• Act as a key conduit between the sales team and the product teams, helping ensure customer needs and market signals flow effectively in both directions, and providing practical insights back to the product organization.
• Customer-Facing Capability
• Networking — solid understanding of TCP/IP, IP addressing, VLANs, routing, DNS, DHCP, and firewall rules. Practical experience configuring managed switches and using diagnostic tools

Requirements

• This role demands genuine technical depth, not just familiarity. You should be able to demonstrate practical, working knowledge across the following areas:
• Able to isolate issues, apply workarounds under time pressure, and communicate findings clearly to engineering
• RF fundamentals — propagation, antenna theory, signal processing, modulation schemes, spectrum analysis. Hands-on experience with RF equipment or spectrum monitoring systems
• Troubleshooting — structured, first-principles approach to fault diagnosis across hardware, software, network, and RF domains

Familiarity with REST APIs and JSON/XML data exchange

• Clear, precise written and spoken English. Able to produce high-quality technical documents and proposals
• Able to manage expectations honestly, handle challenging questions, and maintain composure when things don't go to plan
• Confident presenting and demonstrating to audiences ranging from small technical working groups to large conference settings
• Linux — confident and capable at the command line. Able to configure, troubleshoot, and administer Linux-based systems, including headless and embedded platforms
• Technical knowledge alone isn't enough. You need to be someone customers trust, enjoy working with, and want to see again
• Skilled at listening — understanding not just what a customer is asking for, but what they actually need
• Scripting and development — competent in scripting for automation, data processing, integration, and building lightweight demo applications
• Culturally aware and adaptable when working with international customers
• Strong practical knowledge of RF principles and hands-on experience with RF equipment
• Degree (or equivalent) in Electronic Engineering, RF/Telecommunications Engineering,
• Willingness to travel within the UK and internationally (estimated 10–40% of time)

Solid working knowledge of IP networking and configuration

• Proven ability to present, demonstrate, and communicate technical concepts to varied audiences
• Eligibility to obtain and maintain UK security clearance (SC minimum)
• Proficiency in Linux systems
• Competence in a scripting language for practical tasks
• Systems

Preferred

• This role offers flexible work models, paid time off, health care benefits, and opportunities for learning and development.
• Demonstrable experience in a technical pre-sales, application engineering, or systems engineering role — ideally within the RF, defence, or telecommunications sectors
• Physics, Computer Science, or a closely related discipline
• Familiarity with SDR platforms, electronic warfare, SIGINT, or COMINT concepts
• Experience in defence or government customer environments
• Exposure to Docker, Git, or API-driven integration work

• If you’d like to join our team but feel that you don’t quite meet all of the preferred skills, we’d still love to hear why you think you’d be a great addition to our team
• Experience with CRFS products or comparable RF spectrum monitoring / geolocation