Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. What We do / The Team: Markets Operations Technology is going through an exciting phase of transformation in margin and collateral domain. We are re‑engineering our technology estate to achieve world‑leading performance and resiliency, enabling new capabilities in advanced execution, global market...

At CV-Library, we have a simple vision: to help the world to work and we are looking for exceptional and talented people to help us realise this vision in both UK and overseas markets. We are in a period of focused internal investment, following a year of key strategic acquisitions and significant investment across all parts of the business, from Tech and Data to People and HR, there's never been a more exciting time to join us or a better place to grow your career! The Role Hours: Monday-Friday, 9:00-17:30 Location: Fleet Working Pattern: Hybrid - twice a quarter We are looking for a Principal Software Engineer to provide technical leadership across multiple domains, including mobile applications and backend/server systems. This role is centred on driving alignment across teams and systems - owning how services and applications interact, ensuring consistency in interface design, and coordinating implementation approaches across Product, Architecture and...

Job Title: Principal Systems Engineer - Software/Simulation Location: Portsmouth - Broad Oak - 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 (dependent on skills and experience) 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. Role Description: As a Principal Systems Engineer within the MIMESIS team, you will have technical responsibility for the design and development of new...

Job Title: Principal Systems Engineer - Software/Simulation Location: Portsmouth - Broad Oak - 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 (dependent on skills and experience) 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. Role Description: As a Principal Systems Engineer within the MIMESIS team, you will have technical responsibility for the design and development of new...

Job Title: Principal Systems Engineer - Software/Simulation Location: Portsmouth - Broad Oak - 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 (dependent on skills and experience) 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. Role Description: As a Principal Systems Engineer within the MIMESIS team, you will have technical responsibility for the design and development of new...

Job Title: Principal Systems Engineer - Software/Simulation Location: Portsmouth - Broad Oak - 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 (dependent on skills and experience) 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. Role Description: As a Principal Systems Engineer within the MIMESIS team, you will have technical responsibility for the design and development of new...

Job Title: Principal Systems Engineer - Software/Simulation Location: Portsmouth - Broad Oak - 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 (dependent on skills and experience) 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. Role Description: As a Principal Systems Engineer within the MIMESIS team, you will have technical responsibility for the design and development of new...

Job Title: Principal Systems Engineer - Software/Simulation Location: Portsmouth - Broad Oak - 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 (dependent on skills and experience) 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. Role Description: As a Principal Systems Engineer within the MIMESIS team, you will have technical responsibility for the design and development of new...

Job Title: Principal Systems Engineer - Software/Simulation Location: Portsmouth - Broad Oak - 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 (dependent on skills and experience) 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. Role Description: As a Principal Systems Engineer within the MIMESIS team, you will have technical responsibility for the design and development of new...

Are you looking for a career move that will put you at the heart of a global financial institution? We are seeking an exceptionally skilled Principal AI Software Engineer to architect and implement robust, scalable backend systems that power our advanced AI tools and services. This hands-on individual contributor role demands expert knowledge of Python fundamentals, a profound understanding of software design principles, architectural patterns, and an unwavering commitment to writing clean, maintainable, and production-grade code that minimizes technical debt. Proficiency in FastAPI is a must. Prior hands-on expertise in Generative AI development and its associated frameworks is required. Hands-on experience and in-depth understanding of C++ is a significant bonus. By Joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress....

My client is a growing engineering consultancy operating across the UK power and utilities sector. Due to continued project demand, they are looking to appoint an experienced Principal Cable Design Engineer to support the delivery of complex, high-value infrastructure schemes. This is a technically focused role offering the opportunity to lead, check and approve cable design work while mentoring others and contributing to wider business performance. The Role You'll be responsible for delivering technically robust cable designs, ensuring work is right-first-time and compliant with statutory and industry standards. You'll work closely with Project Managers and engineering teams to deliver projects safely, on programme and within budget. Key responsibilities include: Producing, checking and approving cable designs using industry-standard software Leading technical input across projects, including design risk and constraint management Ensuring compliance with CDM,...

Job title: Senior Mechanical Engineer (Building Services) Location: Cardiff / Swansea (Hybrid 3 days per week) Pay Rate: 51 per hour Umbrella PAYE (37.5 hours per week) Qualifications required: Degree / IEng / CEng Travelling costs expensed Notice Period: 4 weeks Contract Term:4 months (with extension) About the company Our client are ranked as one of LinkedIn's Top 25 Companies, where UK professionals want to work and stay once they join. They've also made the Times Top 50 employers for women. Their Infrastructure team uses innovation, new approaches and the power of data to help our clients deliver end-to-end projects and programmes for essential future infrastructure. And as the work becomes ever more complex, their employees continue to challenge the status quo. Our client are looking for Senior / Principal Mechanical Building Services Contract Engineer to join their growing team in Cardiff. The responsibilities of the role are:...

My client is a growing engineering consultancy operating across the UK power and utilities sector. Due to continued project demand, they are looking to appoint an experienced Principal Cable Design Engineer to support the delivery of complex, high-value infrastructure schemes. This is a technically focused role offering the opportunity to lead, check and approve cable design work while mentoring others and contributing to wider business performance. The Role You'll be responsible for delivering technically robust cable designs, ensuring work is right-first-time and compliant with statutory and industry standards. You'll work closely with Project Managers and engineering teams to deliver projects safely, on programme and within budget. Key responsibilities include: Producing, checking and approving cable designs using industry-standard software Leading technical input across projects, including design risk and constraint management Ensuring compliance with CDM,...

My client is a growing engineering consultancy operating across the UK power and utilities sector. Due to continued project demand, they are looking to appoint an experienced Principal Cable Design Engineer to support the delivery of complex, high-value infrastructure schemes. This is a technically focused role offering the opportunity to lead, check and approve cable design work while mentoring others and contributing to wider business performance. The Role You'll be responsible for delivering technically robust cable designs, ensuring work is right-first-time and compliant with statutory and industry standards. You'll work closely with Project Managers and engineering teams to deliver projects safely, on programme and within budget. Key responsibilities include: Producing, checking and approving cable designs using industry-standard software Leading technical input across projects, including design risk and constraint management Ensuring compliance with CDM,...

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: £47,241+ (Commensurate with skills and experience) 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...

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: £47,241+ (Commensurate with skills and experience) 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...

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: £47,241+ (Commensurate with skills and experience) 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...

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: £47,241+ (Commensurate with skills and experience) 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...

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: £47,241+ (Commensurate with skills and experience) 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...

Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-In-Furness (Full time Onsite) 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 advanced, technology-led defence, aerospace and security solutions, 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 will be doing: In this role, you will support the development and delivery of mechanical platform systems, ensuring robust design evidence is generated to support safe and effective engineering solutions. You will contribute to testing and commissioning activities, support issue resolution, and work closely with...