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principal software engineer
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BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Frimley, Camberley, UK
Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive 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: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Sandhurst, UK
Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive 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: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Fleet, UK
Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive 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: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Aldershot, UK
Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive 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: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Guildford, UK
Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive 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: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Hook RG27, UK
Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive 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: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Wrecclesham, Farnham, UK
Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive 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: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You...
Aldwych Consulting
13 Mar, 2026
Permanent
Senior/Principal Mechanical Engineer
Aldwych Consulting 39 Holloway Rd, London N7 8JP, UK
Senior / Principal Mechanical Engineer London I'm currently working with a well-established building services engineering consultancy that is looking to appoint a Senior or Principal Mechanical Engineer to join their growing team. With over 30 years' experience delivering mechanical, electrical and public health (MEP) engineering design , the consultancy works across a wide range of sectors including commercial, residential, healthcare, education, leisure and mixed-use developments . They provide practical, sustainable engineering solutions and support projects from early feasibility and concept design through to detailed design and project completion . Due to continued growth and a strong pipeline of work, they are looking for an experienced Mechanical Engineer who can lead mechanical design work, manage projects and support the development of junior engineers . The Role As a Senior / Principal Mechanical Engineer, you will: Lead the mechanical design on a...
Matchtech
13 Mar, 2026
Permanent
Manufacturing Test Engineer
Matchtech Bolton, UK
Working: The role offers flexible working but does require engineers on site for 4-5 days per week and is on a secure site where SC clearance is needed. . We have a great opportunity for an Electronics Test Engineer to join the Manufacturing team at one of our major defence clients. . The Manufacturing Test Engineer will be providing technical support to the manufacturing test capability, to ensure programme targets are met to agreed time, cost and quality requirements. . The Manufacturing Test Engineer will be working with a small team of dedicated engineers in a fast-paced but friendly and inclusive manufacturing environment. The team has a great mix of people, ranging from apprentices and graduates through to experienced engineers, all striving to deliver technical excellence across a number of different projects in development and production. - Main Responsibilities; Providing Test Engineering support during Design / Development phases from initial concept through...
Aldwych Consulting
13 Mar, 2026
Permanent
Senior/Principal Electrical Engineer
Aldwych Consulting 39 Holloway Rd, London N7 8JP, UK
Senior / Principal Electrical Engineer London I'm working with a well-established building services engineering consultancy that is looking to appoint a Senior or Principal Electrical Engineer to join their growing team. With over 30 years' experience in the industry, this consultancy specialises in delivering mechanical, electrical and public health (MEP) design solutions across a wide range of sectors including commercial, residential, healthcare, education, leisure and mixed-use developments . They are known for providing practical, sustainable engineering solutions from early-stage feasibility through to detailed design and project delivery. Due to continued growth and a strong pipeline of projects, they are looking for an experienced Electrical Engineer who can play a key role in leading electrical design work, managing projects and supporting the development of junior engineers . The Role As a Senior / Principal Electrical Engineer, you will: Lead the...
Rullion Engineering Cumbria
13 Mar, 2026
Permanent
Senior EC&I Engineer
Rullion Engineering Cumbria Woolston, Warrington, UK
Position: Senior EC&I Engineer - 5 year minimum in the Nuclear sector Location: Warrington - able to consider Abingdon/Cumbria Working Pattern: Hybrid, 2 days a week onsite, up to 37 hours per week Contract Type: PERM Role Overview The Senior EC&I Design Engineer will support the Principal Engineer in delivering complex engineering projects and may take ownership of smaller work packages with assistance from the wider team. The role covers the full lifecycle of EC&I design, from early concept development through detailed design, manufacture, installation, and commissioning. Key Responsibilities Lead or support the delivery of EC&I design work across all project stages. Produce high-quality design documentation, drawings, and calculations in line with project standards and regulatory requirements. Plan, coordinate, and manage design activities to ensure deadlines and quality expectations are met. Collaborate with multidisciplinary teams...
Starling Bank
13 Mar, 2026
Permanent
Staff Software Engineer (Team Lead) - Engine by Starling
Starling Bank 39 Holloway Rd, London N7 8JP, UK
Description At Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a year ago we split out as a separate business. Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. The Engine technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. Our technologists are at the very heart of Engine and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Hutton, Brentwood, UK
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...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Basildon, UK
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...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Chelmsford, UK
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...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Witham CM8, UK
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...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Ingatestone CM4, UK
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...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Maldon CM9, UK
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...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Harlow, UK
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...
BS
13 Mar, 2026
Permanent
Principal Systems Engineer
BAE Systems Billericay, UK
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...
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