Senior System Requirements Engineer

Prattwhitney; Harlow; Hybrid; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Competitive salary

Contributory Pension Scheme (up to 10.

Life Assurance

40

Job summary

Raytheon UK is seeking a Senior System Requirements Engineer in Harlow to support the System Design Authority and Engineering teams across requirements, design reviews, and bid responses. Role involves developing technical documentation and ensuring lifecycle coverage from concept to certification.

The position supports a hybrid/onsite working pattern, with potential for flexible arrangements. A STEM degree and strong systems engineering experience are essential for success in this role.

Qualifications

• Experience across the systems engineering lifecycle from requirements through to certification.
• Experience with generation of technical documentation (internal and for customers).
• Understanding of policies, practises and procedures, and the ability to communicate these to their team.
• Ability to work autonomously, with limited oversight from Team Leaders and Management
• Ability to work within agreed timescales
• Ability to work in a team and perform under pressure
• Degree in STEM (Science, Technology, Engineering, Mathematics) or similar
• Knowledge of Air Traffic Management or Radar systems would be beneficial
• Experience with Air Traffic Management or Radar systems would be beneficial
• Experience with the IBM Rational DOORS toolset
• Experience with SysMl or UML in a Systems Engineering environment
• Experience with configuration management systems
• Membership / Chartership with INCOSE (or similar professional body) #LI-BZ1

Responsibilities

• The role will provide support to the System Design Authority and Systems Engineering Team Leaders with the development and management of project requirements, generation of technical documentation.
• Systems Analysis and Design work and participation in technical design reviews.
• Further, supporting the Systems Team in the generation of bid proposal material and submission of bids in response to customer requests.

Skills

Systems engineering

Technical documentation

Autonomous working

Team collaboration

Time management

Problem solving

Education

Degree in STEM

Tools

IBM Rational DOORS

SysML/UML

Job description

Date Posted: 2026-08-11 Country: United Kingdom Location: Harlow, Essex Position Role Type: Onsite Senior System Requirements Engineer Harlow, Hybrid (3 days a week onsite)

Benefits

• £: Competitive salary
• Contributory Pension Scheme (up to 10.5% company contribution)
• 6 times salary 'Life Assurance' with pension
• 25 days holiday (increasing with service) + statutory public holidays, plus opportunity to buy and sell up to 5 days (37hr)
• Car/Car allowance (dependant on grade/ role)
• Company bonus scheme (discretionary)
• Flexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work amongst others
• Enhanced sick pay
• Enhanced family friendly policies including enhanced maternity, paternity & shared parental leave
• Private Medical Insurance - dependant on grade

Work Culture

37hr working week, although hours may vary depending on role, job requirement or site-specific arrangements. Early 1.30pm finish Friday, start your weekend early! Remote, hybrid and site based working opportunities, dependant on your needs and the requirements of the role. Up to 5 paid days volunteering each year. Flexible working culture focused on output, with more formal flexible working arrangements on request (assessed subject to role) - please highlight any requests to the Talent Acquisition team.

About us

At Raytheon UK, we take immense pride in being a leader in defence and aerospace technology. As an employer, we are dedicated to fuelling innovation, nurturing talent, and fostering a culture of excellence. Joining our team means being part of an organisation that shapes the future of national security whilst investing in your growth and personal development. We provide a collaborative environment, abundant opportunities for professional development, and a profound sense of purpose in what we do. Together, we are not just advancing technology; we're building a community committed to safeguarding a safer and more connected world.

Our Business

As a leading defence and aerospace company operating across the United Kingdom, Raytheon UK helps to solve our customers’ toughest challenges. We are a major supplier to the UK government and customers around the globe, providing defence solutions across all domains: land, sea, air, space, and cyberspace. We also provide digital and training transformation solutions to commercial and military customers. With circa 2000 employees and major facilities operating throughout the UK including Broughton (Wales), Livingston and Glenrothes (Scotland), and Harlow, Gloucester, and Manchester (England); we are committed to investing in British careers and technology development.

ATMS

Our ATMS business has heritage in the development, manufacture, sustainment and support of secondary surveillance radar technology. Our technology is relied upon to marshal more than two-thirds of the world’s air traffic due to its precision accuracy and ability to detect aircraft even within the most crowded airspace. Designed and manufactured in the UK, our products are exported globally to RTX customers in more than 45 countries.

Role & Responsibilities

The role will provide support to the System Design Authority and Systems Engineering Team Leaders with the development and management of project requirements, generation of technical documentation. Systems Analysis and Design work and participation in technical design reviews. Further, supporting the Systems Team in the generation of bid proposal material and submission of bids in response to customer requests.

Required experience

• Experience across the systems engineering lifecycle from requirements through to certification
• Experience with generation of technical documentation (internal and for customers)
• Understanding of policies, practises and procedures, and the ability to communicate these to their team.
• Ability to work autonomously, with limited oversight from Team Leaders and Management
• Ability to work within agreed timescales
• Ability to work in a team and perform under pressure
• Degree in STEM (Science, Technology, Engineering, Mathematics) or similar

Desirable experience

• Knowledge of Air Traffic Management or Radar systems would be beneficial
• Experience with Air Traffic Management or Radar systems would be beneficial
• Experience with the IBM Rational DOORS toolset
• Experience with SysMl or UML in a Systems Engineering environment
• Experience with configuration management systems
• Membership / Chartership with INCOSE (or similar professional body) #LI-BZ1

RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law.

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses - Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.