16d ago
New

Senior Software Engineer ATMS

United KingdomUnited Kingdom·Harlowsenior
Software EngineerSoftware Engineering
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Quick Summary

Requirements Summary

Engineering Location: Harlow (Hybrid with 4 day

Technical Tools
Software EngineerSoftware Engineering
2026-09-16
United Kingdom
Harlow, Essex
Hybrid

What We Offer

~1 min read
✓£: 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)
✓Company bonus scheme 4% (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
  • 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.

As a Senior Software Engineer you will work within our existing software engineering team bringing your experience of real-time embedded software engineering to design, develop, integrate and test systems software to support our worldwide customer base. You will also have opportunity to work on exciting internal R&D projects to support the next generation of ATMS systems.

The main tasks of the role are:

  • Design and develop product functionality, user interfaces and performance improvements.
  • Key contributor & reviewer at gate & design reviews.
  • Act as Subject Matter Expert as part of a wider software and systems engineering group to analyse and resolve software and system defects in response to service requests, incidents, problems and events.
  • Validating and verifying the design artefacts from internal teams or subcontractors.
  • Provide input to configuration, safety and quality management as appropriate.
  • Document design and advise on product support material.
  • Investigate product issues and develop solutions to customer problems.
  • Develop test plans and methodologies to ensure product meets Raytheon quality standards.
  • Lead continuous technical improvement and re-architecting activities.
  • Assist in updating software design artefacts.
  • Interfacing with COTS vendors for technical support.
  • Provide technical support (covering the entire software lifecycle) to Raytheon programmes delivering new capability.

Requirements

~1 min read

Essential:

  • Relevant years' active, hands-on software development experience, working in a Team environment
  • Relevant years’ experience with C/C++/C# language
  • Experience in the use of UML in software design and other methodologies
  • Real-Time Embedded SW programming experience
  • RTOS knowledge
  • Knowledge of low-level communication protocols, Ethernet, Serial, PCI Bridge
  • Hands on fault investigation experience in embedded code environment
  • Use of tools in software configuration management, requirements definition, high-level and detailed design, defect reporting

  • Min 2:1 degree in a computer science or related subject
  • Experience Working in an Agile/SCRUM/DevOps delivery model.
  • Knowledge of Radar systems.
  • Hands-on experience in reverse engineering a mature system to take advantage of a modern technology development in hardware, software and firmware.
  • Competency with design patterns and their application to solve complex problems.

#LI-MF1

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.  

Click on this link to read the Policy and Terms

Location & Eligibility

Where is the job
Harlow, United Kingdom
On-site at the office
Who can apply
Open to applicants worldwide

Listing Details

Posted
September 17, 2026
First seen
October 2, 2026
Last seen
October 3, 2026

Posting Health

Days active
1
Repost count
0
Trust Level
24%
Scored at
October 3, 2026

Signal breakdown

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Senior Software Engineer ATMS