Principal Systems Engineer

TN United Kingdom; Harlow; Hybrid; GBP 50,000 - 90,000; Full time

Job description

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At Raytheon UK, we take pride in being a leader in defence and aerospace technology. As an employer, we are dedicated to innovation, talent development, and fostering a culture of excellence.

Joining our team means being part of an organisation that shapes the future of national security while supporting your growth and personal development. We offer a collaborative environment, numerous opportunities for professional development, and a meaningful purpose in our work. Together, we are advancing technology and building a community committed to safeguarding a safer, more connected world.

Our business

As a leading defence and aerospace company in the UK, Raytheon UK solves complex challenges for customers worldwide. We supply the UK government and international clients with defence solutions across land, sea, air, space, and cyberspace, along with digital and training transformation services.

With around 2000 employees and major facilities in Broughton (Wales), Livingston and Glenrothes (Scotland), and Harlow, Gloucester, and Manchester (England), we invest in British careers and technology development.

Our Weapons division provides complex weapon systems, including AMRAAM and Paveway IV munitions for the Royal Air Force, Phalanx missile defence for the Royal Navy, and Javelin anti-tank weapons for the British Army.

Our Sensors division offers solutions like navigation, GPS anti-jamming, air traffic radars, and air traffic management systems, ensuring security across various domains.

Summary of Role

This is an exciting opportunity for an experienced Principal Systems Engineer to work within the Raytheon Assured Position Navigation and Timing (APNT) Engineering team, part of the Systems & Products business unit. The role involves developing Digital GPS Anti-Jam Systems and Alternative Navigation Solutions for military applications.

The role provides Design Authority expertise across the product lifecycle, from requirements capture and analysis to design, testing, qualification, certification, volume production, and sustainment.

Main Duties

The successful candidate will report to the Senior Project Engineering Manager APNT, providing technical leadership and direction, with Design Authority responsibilities for assigned products. They will support business development, contribute to bids and proposals, and generate engineering estimates to help secure new business.

They will collaborate with customers and system engineering teams to develop and manage technical requirements, generate documentation, and oversee the design lifecycle to meet development goals.

The role involves solving complex technical problems in GPS Anti-Jam products, representing engineering in production teams, managing obsolescence and change, and ensuring designs meet high standards through reviews, testing, and certification. Mentoring junior engineers and supporting research and development activities are also key aspects.

Minimum Requirements

• Product development experience at team lead level
• Knowledge of high-speed digital design, electro-mechanical and thermal design in harsh environments
• Understanding of RF concepts up to 2GHz
• Design experience in analogue and digital circuits, FPGA/DSP control
• Experience interfacing into established systems
• Proven systems engineering experience in product development
• Experience in product qualification (EMC, environmental)
• Strong problem-solving and analytical skills
• Ability to prioritize tasks and manage team activities
• Interpretation of customer specifications and environments
• Ability to develop hardware concepts from vague requirements
• Technical documentation skills
• Excellent communication and stakeholder management skills
• Willingness to travel within the UK, Europe, and the US
• Degree in STEM or equivalent certification
• SC security clearance or eligibility
• Design Authority experience in system product development
• Experience with RF circuitry, high-speed D/A and A/D conversion
• Proficiency with schematic, PCB layout, and simulation tools
• Firmware development experience (Xilinx Vivado, ModelSim)
• Product testing and certification experience
• Familiarity with requirement management tools (e.g., DOORs, MS Project)
• Knowledge of GNSS systems and receiver characteristics
• Experience with SysML/UML and configuration management systems
• Understanding of Six Sigma and Lean Manufacturing principles

Additional benefits include holidays, pension, bonus scheme, life assurance, flexible benefits, family policies, car allowance, and private medical insurance.

Work Culture

• 37-hour workweek with flexible hours
• Early finish on Fridays
• Remote, hybrid, or site-based working options
• Flexible working culture focused on output
• Up to 5 paid volunteering days annually

RTX Overview

Raytheon UK is part of RTX, a global organisation with over 180,000 employees, providing advanced systems worldwide. RTX contributes significantly to the UK economy and supports thousands of jobs across the UK.

Diversity, Equity & Inclusion

We are committed to fostering a diverse, equitable, and inclusive workplace, believing that diverse perspectives drive innovation and excellence. We aim to create an environment where all employees can thrive and contribute to technological and societal progress.