Principal Software Engineer

Posted 8 Days Ago
Be an Early Applicant
Cheltenham, Gloucestershire, England, GBR
In-Office
Expert/Leader
Aerospace • Logistics • Security • Software • Cybersecurity
The Role
Lead design, development, and delivery of scalable software systems; act as prime technical contact; mentor engineers; coordinate with partners and customers; drive DevOps and deployment practices.
Summary Generated by Built In
UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes

RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE TYPE: UK-Highest Level of Government Clearance

TRAVEL: Yes, 10% of the Time

Define Possible at Northrop Grumman UK

What’s your possible?

At Northrop Grumman UK, you are part of a team driving innovation where it matters most – solving tomorrow’s challenges and shaping the technology solutions of the future. We call it Defining Possible.

This mindset goes beyond our customer solutions; it’s the foundation for your career development and the impact we have within the community.

The Opportunity

This is more than just a job; it’s a mission.

As a Principal Software Engineer, you will play a pivotal role in designing, developing, and maintaining the critical infrastructure that powers our services. You will work on a variety of unique and complex projects, delivering core solutions that have real impact.

You will bring strong technical leadership, guiding teams through both technical and delivery challenges while shaping solutions that meet customer needs.

“My purpose is to lead a team of engineers, rise to the challenges presented, push the boundaries and define possible together.”
– Principal Software Manager, Northrop Grumman UK

What You’ll Do

  • Take ownership of multiple teams’ deliverables and work with technical leads to define a path that meets customer requirements.
  • Represent Northrop Grumman UK as the prime technical contact for your area.
  • Collaborate with senior external partners and customers, often coordinating between organisations.
  • Mentor and guide engineers to support skills development and overall team growth.
  • Contribute to high‑quality technical design, development, and delivery planning.

What We’re Looking For

  • Experience as a Software Engineer with strong capability in one or more of the following:
    • Backend development (Java Spring Boot, Maven, Python)
    • Frontend development (JavaScript/TypeScript, React, npm)
  • Proven experience designing, developing, and deploying scalable backend systems.
  • Familiarity with DevOps, CI/CD and containerisation technologies (Jenkins, Kubernetes, Docker, AWS).
  • Strong communication, collaboration, and problem‑solving skills, ideally within an agile environment.

If you don’t meet every requirement, we still encourage you to apply. Talent, mindset, and potential matter to us.

Security Clearance

Due to the nature of our work, you must be British National for this clearance type.
You must currently hold the Highest Level of  UK Government security clearance.

Our recruitment team is on hand to support you and guide you through the process: [email protected]

Benefits

  • Flexible working options, including an optional compressed fortnight
  • Private healthcare
  • Cash health plan
  • Holiday buy/sell scheme
  • Career development programmes and ongoing specialist training
  • Performance‑based bonuses
  • A range of wellbeing, financial, and lifestyle benefits

Why Join Us?

A Mission to Believe In

Every day, we contribute to building a more secure and connected world across land, sea, air, space, and cyberspace. The work we do together matters.

A Place to Belong and Thrive

Every voice matters. We are proud of our inclusive community and our partnerships with organisations championing diversity, mental health, and veteran careers. You can bring your authentic self to work and thrive here.

Your Career, Your Way

Shape your career with diverse opportunities, mentoring, training programmes, and the flexibility to balance work and life. Your professional growth and wellbeing are at the heart of our culture.

Ready to Apply?

Yes – Submit your application online.
Possibly – Contact our team to learn more: [email protected]
No – Explore other opportunities with us. We’re growing across the UK.

#SOFT-ENG-DEVOPS

Northrop Grumman is committed to hiring and retaining a diverse workforce, and encourages individuals from all backgrounds and all abilities to apply and consider becoming a part of our diverse and inclusive workforce.

Skills Required

  • British National and currently hold the Highest Level of UK Government security clearance
  • Experience as a Software Engineer with backend development (Java Spring Boot, Maven, Python)
  • Experience as a Software Engineer with frontend development (JavaScript/TypeScript, React, npm)
  • Proven experience designing, developing, and deploying scalable backend systems
  • Familiarity with DevOps, CI/CD, and containerisation technologies (Jenkins, Kubernetes, Docker, AWS)
  • Strong communication, collaboration, and problem-solving skills
  • Experience working in an agile environment

Northrop Grumman Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Northrop Grumman and has not been reviewed or approved by Northrop Grumman.

  • Retirement Support 401(k) matching is considered strong, with additional defined-benefit coverage for certain cohorts and options like catch-up contributions. Retirement programs are repeatedly highlighted as a core strength of the total rewards.
  • Leave & Time Off Breadth PTO, company-paid holidays, and compressed work schedules (such as 9/80) provide meaningful time away and flexibility. These scheduling options are cited as a major quality-of-life benefit across many locations.
  • Parental & Family Support Paid parental leave alongside caregiver leave, adoption assistance, and back-up care supports a range of family needs. These programs have been expanded recently, signaling continued investment in family support.

Northrop Grumman Insights

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The Company
HQ: Charlotte, North Carolina
85,636 Employees

What We Do

We are a close-knit community of big thinkers collaborating to keep the world safe. Our passion, creativity and expertise bring next-level technology solutions to life in autonomous systems, cyber, C4ISR, strike, space, and logistics and modernization for our customers around the globe. On the Northrop Grumman team, you’ll join our pursuit of excellence immersed in a dynamic culture of innovation and respect. Your unique perspective will help achieve our shared vision for the future of global security. Every step of the way, you'll be supported by world-class training, employee resource groups and a comprehensive benefits package that enables greater health and happiness for you and your family. Worldwide and across disciplines, we’re challenging what’s possible for technology to protect people and places from undersea to outer space and into cyberspace. And we see the impact of our performance every day. We are Northrop Grumman, and we work on what matters—now, you too can make a difference. Explore opportunities in engineering, IT, manufacturing, business management, cybersecurity and more with us. Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer.

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