Principal systems engineer Work, Jobs in Chelmsford, Ess (with Salaries)

Principal Systems Engineer
BAE Systems —Chelmsford
- Up to £75,900 a year
- Part-time
- System design
Senior Principal Systems Engineer
Rolls-Royce Power Systems AG —Heybridge
- Full-time
- Engineering
- Programmable logic controllers
- No degree
Senior Principal Systems Engineer
Rolls-Royce —Heybridge
- Full-time
- Engineering
- Programmable logic controllers
- No degree
Principal / Lead Systems Engineer
Leonardo UK Ltd —Basildon
- £54,000 - £81,000 a year
- Full-time
- Hybrid work
- Leadership
- Communication skills
- Flexible schedule
- Referral programme
Principal Scientist, Analytical Chemist - Odour Discovery
Digital Odour Technologies Limited —London
- £50,000 - £60,000 a year
- Full-time
- Doctoral degree
- Master's degree
- Machine learning
Quick apply
1d
Principal Configuration Engineer
Leonardo UK Ltd —Basildon
- £55,000 - £65,000 a year
- Full-time
- Hybrid work
- Travel
- Accounting
- Flexible schedule
- Referral programme
Principal Supportability Engineer (ILS)
Leonardo UK Ltd —Basildon
- £53,259 - £71,400 a year
- Full-time
- Hybrid work
- Engineering
- Flexible schedule
- Referral programme
Principal Manufacturing Engineer- Digital
Leonardo UK Ltd —Basildon
- £53,269 - £60,000 a year
- Full-time
- Hybrid work
- ERP systems
- Agile
- IT
- Flexible schedule
- Referral programme
Senior/Principal System Engineer
Quest Global —Basildon
- Full-time
- Engineering
- System design
- Electrical Engineering
Quick apply
Principal Engineer - Mobile - London
Photon —London
- APIs
- Leadership
- Communication skills
Principal Machine Learning Engineer
Entain —London
- Full-time
- Hybrid work
- AWS
- Machine learning
- Python
- Annual leave
Multi-Skilled Maintenance Engineer
PrepWorld —Northfleet
- £49,000 a year
- Full-time
- Microsoft Word
- Microsoft Excel
- Maintenance
Quick apply
Principal Engineer - Javascript - London
Photon —London
- Hybrid work
- JavaScript
- APIs
- Leadership
Electrician
Kier Group —Colchester
- Full-time
- Flexible schedule
10d
Electrical Qualifying Supervisor
Kier Group —Braintree
- Full-time
- Maintenance
- Flexible schedule
Plumbing Engineer
Kier Group —Braintree
- Full-time
- Maintenance
- Plumbing
- Flexible schedule
Maintenance Engineer
PrepWorld —Northfleet
- £42,000 a year
- 12 hour shift
- Microsoft Word
- Microsoft Excel
- Maintenance
Quick apply
Missile Seeker Electronics Engineer
Leonardo UK Ltd —Basildon
- £45,000 - £71,000 a year
- Full-time
- Hybrid work
- Doctoral degree
- Engineering
- Master's degree
- Flexible schedule
- Referral programme
Contracts Manager
Primech Building Services —Gillingham
- Management
- Engineering
- Microsoft Office
- Annual leave
Quick apply
1d
Field Construction Engineer / Supervisor
Wood —Ware
- Full-time
- Computer literacy
- Engineering
- Microsoft Office
- Annual leave
- Life insurance

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Principal Systems Engineer

BAE Systems -
Chelmsford

Apply Now

Job details

Part-time
Up to £75,900 a year

Qualifications

System design
Systems engineering

Full job description

Location

Chelmsford , United Kingdom

Maritime Services

Engineering

Experienced professionals

Job Title: Principal Systems Engineer

Location: Chelmsford – Great Baddow, Hybrid, 3 days weekly onsite

We offer a range of hybrid and flexible working arrangements. Please speak to your recruiter about the options for this particular role

Salary: Up to £75,900 commensurate with skills and experience. Part time & accruing hours available’ Please let us know if you would like to discuss these options.

Put yourself into a dynamic Principal Systems Engineering role at the forefront of real world demands in the defence industry. Alongside ensuring operational excellence for our existing products, there will be the opportunity to develop next generation radar products to counter emerging threats and contribute to our strategy for new technology. Your new day-to-day will be exciting and diverse by applying the principles of Systems Engineering across the entire engineering development lifecycle as you join in developing radar systems used by those who serve and protect us.

Who we are:

Join BAE Systems and you’ll be part of something bigger. As a valued member of our global colleague network, you’ll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You’ll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us.

From the depths of the ocean, to the far reaches of space, there’s no limit to where a career at BAE Systems could take you.

What you’ll be doing:

You will develop innovative solutions to complex and emerging technical challenges within advanced radar systems, applying broad systems engineering expertise to guide design, resolve issues and ensure technical rigour. Your role includes performing detailed system analysis, managing design trade‑offs and leading the decomposition and governance of requirements using approved toolsets such as IBM DOORS Next.

Acting as a central technical authority, you will drive system‑level decision‑making, lead analytical activities and mentor team members while collaborating with multidisciplinary specialists to shape integrated design solutions. You will also direct system integration, oversee test planning and execution, and define acceptance strategies that clearly demonstrate system performance across diverse operational scenarios to stakeholders.

Core duties:

You’ll be experienced in systems design, integration & test
You’ll have an understanding of Systems and Product lifecycles from concept through to delivery
You’ll have an understanding of a range of Engineering disciplines (Software, Mechanical, Electrical)
You’ll have an understanding of Radar Systems is desirable, although not essential if other complementary skills demonstrate a capacity to understand new technologies quickly and effectively
You’ll hold good inter-personal skills with the ability to communicate to all levels within the organisation and externally
You’ll be experienced of presenting both technical and non-technical information in a formal setting
You’ll hold a degree (or equivalent) qualified in an engineering or science discipline

The Radar Systems Engineering team:

You will be working as a Principal Systems Engineer within our close-knit multi-function radar team of inter-disciplinary engineers, evolving our radar portfolio of existing and brand-new radar products to address emerging and future threats.

Join us and help shape the future of Radar technology!

Why BAE Systems?

Here you’ll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work, this is a place where you can grow your career with confidence and be empowered to be your best. You’ll be recognised for your contribution and enjoy rewards tailored to what’s most important to you and your family, support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make.

A place where everyone can thrive:

We’re committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

Closing Date: 8th July 2026

We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible.

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Maritime Services

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principal systems engineer jobs in chelmsford, ess

Principal Systems Engineer

Senior Principal Systems Engineer

Senior Principal Systems Engineer

Principal / Lead Systems Engineer

Principal Scientist, Analytical Chemist - Odour Discovery

Principal Configuration Engineer

Principal Supportability Engineer (ILS)

Principal Manufacturing Engineer- Digital

Senior/Principal System Engineer

Principal Engineer - Mobile - London

Principal Machine Learning Engineer

Multi-Skilled Maintenance Engineer

Principal Engineer - Javascript - London

Electrician

Electrical Qualifying Supervisor

Plumbing Engineer

Maintenance Engineer

Missile Seeker Electronics Engineer

Contracts Manager

Field Construction Engineer / Supervisor

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