The Opportunity This is your chance to build the foundational systems for 'Citi Assist', a Generative AI assistant that will reach every Citi employee globally. You'll join us on the ground floor, becoming a core builder on a high-visibility platform that sets the standard for how a global bank adopts this technology safely and at scale. Here's what makes this role unique: we know that data is the key to building a successful, safe, and scalable generative AI assistant. The difference between a good AI product and a great one isn't just the model—it's the testing, evaluation, and feedback loops that make it better every day. As a data-focused full-stack engineer, you'll help us craft the tools and systems that let us understand how Assist is performing, where it's succeeding, and where it needs to improve. You'll work across the stack, building everything from intuitive dashboards that surface insights to robust backend pipelines that process evaluation data at scale....

Job Type: Permanent Build a brilliant future with Hiscox   Reporting to:         Re & ILS Head of Data Location:                 London Type:                       Permanent Role Overview The Lead Data Scientist is a crucial member of the extended RE&ILS Tech Leadership Team, responsible for building, leading, and nurturing a highly capable (New) Data Science and Machine Learning chapter. This role facilitates the successful delivery of new AI Cloud-based solutions against our growing list of business use cases (involving complex Data Analytics, Machine Learning, and AI Agent based solutions). You will co-lead the new Data Science chapter with the RE&ILS Head of Data and help ensure its members provide Data Science capabilities and insights to support decision-making across RE&ILS strategic Value Streams. Whilst the chapter grows, you are expected to be hands-on actively helping to architect, design, and build AI or Data Science-based...

Job Type: Permanent Build a brilliant future with Hiscox   Role Purpose As a Lead Machine Learning Engineer (MLE) at Hiscox, you will shape and scale our Machine Learning Engineering capability and ensure the successful deployment and operation of ML in production. You will lead the MLE sub-chapter, line manage Machine Learning Engineers, and partner closely with the Head of Data Science, the Data Science sub-chapters and Platform/Group teams to enable scalable, reusable, and well-governed ML solutions. You will be accountable for the MLOps platform, ensuring it is reliable, secure, and continuously evolved and for ensuring our business unit ships ML to production in a scalable way that is reusable across value streams, enabling efficient model maintenance, monitoring, and lifecycle management. Combining deep technical expertise with leadership, you will set standards, uplift capability, and enable squads to deliver robust, production-grade ML systems. Key...

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.   Why Citi? Over 200 years in business with a wonderful team of creative, visionary, and entrepreneurial thinkers. Tremendous opportunities to advance, open to everyone across all levels. Learn and grow simultaneously! We a unique journey of personal and professional development,...

Senior Front-End Developer (React, TypeScript) - VP, FX Options Pricing 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. The Opportunity We are seeking a highly skilled and motivated Senior Front-End Developer to join a critical greenfield program focused on transforming our electronic FX Options Trading business. This is a multi-year,...

At Citi, we are pioneering the future of enterprise operations through innovative technology. Our COO-Technology Engineering and Architecture capability is at the forefront, responsible for architecting best-in-class solutions, driving end-to-end transformation, and integrating cutting-edge Generative AI solutions to unlock unparalleled efficiency, automation, and risk reduction across our global operations. The Team: Innovating at Scale Our team is a dynamic hub of engineers and innovators dedicated to solving complex business challenges with intelligent solutions. We believe in building robust, scalable products that deliver tangible impact. We foster an environment of continuous learning, rapid iteration, and strong engineering practices. Here, you'll work alongside passionate experts, leverage the latest in AI, and contribute to a culture that values clean code, thoughtful design, and direct, hands-on problem-solving. We're not just adopting AI; we're building the...

Job Overview: We are looking for a skilled Generative AI Developer to join our Controls Technology team and contribute to the development and integration of innovative generative AI solutions. In this role, you’ll work closely with senior developers, AI architects, and business stakeholders to deliver impactful AI-driven features and products. Key Responsibilities: Implement and fine-tune generative AI models under the guidance of senior team members. Contribute to prompt engineering and development of AI-powered workflows. Assist with the deployment, monitoring, and maintenance of AI models in production environments. Collaborate with data scientists and engineers to ensure seamless integration of AI capabilities. Perform data preprocessing, feature engineering, and API development for AI applications. Participate in code reviews, testing, and documentation to ensure quality and reliability. Stay updated with advancements in GenAI and share relevant learnings with...

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 . As an Engineering Manager you will improve the productivity of engineers, create effective reporting mechanisms, and ensure timely and budget-conscious completion of work within the Site Reliability Engineering (SRE) team. You will play a crucial role in driving operational excellence, fostering...

Senior Servicing Engineer (CCTV & Access Control) Salary: 46,000 - 50,000 per annum (DOE) Location: London - Site Based Contract: Permanent, Full-Time About the Company Our client is a well-established electronic security systems integrator delivering advanced fire, security and smart building solutions across commercial and construction environments throughout London and the wider UK. They specialise in the design, installation and ongoing support of integrated security systems , including access control, CCTV and surveillance, biometric solutions, remote monitoring and intruder alarms. Their projects demand high standards of quality, compliance and reliability , supported by industry-recognised accreditations and technical expertise. The business operates within a professional, compliance-driven environment where technical standards, accountability and dependable service delivery are essential. Employees are supported with the tools, training and...

We are partnering with a leading consultancy and professional services firm specialising in delivering innovative, modern data centre solutions. They are expanding their engineering team and seeking Intermediate and Senior Electrical Design Engineers to help deliver a wide range of technically challenging and high-value projects. This is an exciting opportunity to join a business that champions innovation, collaboration, and long-term professional development. You'll take responsibility for the design and delivery of electrical systems, from concept through to commissioning, ensuring robust and high-quality solutions for mission-critical environments. You'll be involved in a variety of consultancy packages including: Strategic consultancy, feasibility studies, and master planning Detailed electrical design and specification Engineering, commissioning, and IST management Certifications, compliance, and performance validation Key Responsibilities Design and...

Lead Maintenance Engineer London (Wembley/ Park Royal) Salary: 62,000 plus bonus Shifts: 4 on 4 off DAYS only Sector: Manufacturing / Production Overview On behalf of our client, a leading name in the manufacturing sector, we are recruiting for an experienced Lead Maintenance Engineer. This role offers an excellent opportunity for a hands-on engineer with strong leadership skills and an electrical bias to take ownership of maintenance operations within a busy production environment. The successful Lead Maintenance Engineer will be responsible for both supervising the maintenance team and remaining actively involved in day-to-day maintenance and repair activities across the facility. Key Responsibilities Act as the Lead Maintenance Engineer, overseeing and coordinating all site maintenance tasks. Lead, guide, and support a team of multi-skilled maintenance technicians, ensuring smooth operation and minimal downtime. Remain hands-on, carrying out fault...

Senior Engineer (Quality) Location: Woolwich Contract: up to £380pd (IR35 subject to determination) Length: 12 Month Contract An opportunity has arisen for a Senior Engineer with a strong focus on quality assurance to join a team delivering clean water pipeline infrastructure projects across the Thames Water region. Working on major water network upgrades, this role will play a key part in ensuring the highest standards of quality are maintained throughout the project lifecycle. You will work closely with project managers, site teams and subcontractors to ensure that pipeline installation works are delivered in line with design specifications, industry standards and client requirements. The role will involve overseeing quality processes, supporting site delivery teams and ensuring all documentation and inspection procedures are completed accurately and efficiently. Key Responsibilities Ensure all works are delivered in accordance with project specifications,...

Senior Data Engineer (Python & SQL) Location London with hybrid working Monday to Wednesday in the office Salary 70,000 to 85,000 depending on experience Reference J13026 An AI first SaaS business that transforms high quality first party data into trusted, decision ready insight at scale is looking for a Senior Data Engineer to join its growing data and engineering team. This role sits at the core of data engineering. You will work with data that is often imperfect and transform it into well structured, reliable datasets that other teams can depend on. The focus is on engineering high quality data foundations rather than analytics or cloud infrastructure alone. You will design and build clear, maintainable data pipelines using Python and SQL within a modern data and AI platform, with a strong focus on data quality, robustness, and long term reliability. You will also play an important mentoring role within the team, supporting and guiding other data engineers and...

We at randstad are seeking an experienced and technically proficient Senior Engineer to join our infrastructure team. This role is focused on the successful delivery of complex utility diversion projects , requiring a high level of technical oversight, team leadership, and site-based expertise. The successful candidate will take a lead role in managing site engineering activities, ensuring that all diversions-including water, gas, power, and telecommunications-are executed to the highest standards of safety and technical accuracy. Key Responsibilities Technical Leadership & Site Engineering Operational Oversight: Manage and coordinate all site engineering activities for utility diversion work packages. Technical Excellence: Apply in-depth technical knowledge to resolve complex engineering challenges on-site, ensuring all works align with design specifications. Self-Delivery: Oversee self-delivered utility works, maintaining direct control over quality and...

Mechanical Project Engineer - Building Services Location: London Salary: 60,000 The Role We are seeking a Project Engineer - Building Services to support the delivery of mechanical services installations across construction projects in London. You will work closely with the Project Manager, design teams and subcontractors to ensure mechanical systems are delivered safely, to specification, on programme and within budget. This role bridges design coordination and site delivery, ensuring technical excellence throughout the project lifecycle. Key Responsibilities Support delivery of mechanical systems including HVAC, heating, ventilation, pipework and public health installations. Review drawings and specifications to ensure coordinated, compliant installation. Resolve technical queries and coordinate with design teams and subcontractors. Assist with programme planning, sequencing and monitoring site progress. Support management of design changes and...

Principal Fire Engineer Locations: Bristol, Epsom, Glasgow, London or Derby (flexible / hybrid working) We are working with a leading construction and engineering consultancy recognised globally for delivering design, engineering and project management solutions across major infrastructure and built environment projects. This organisation offers more than just a job - it provides the opportunity to make a genuine impact, shaping the built environment to benefit future generations and the natural environment. Due to continued growth, they are seeking a Principal Fire Engineer to join their Building Design Practice. This role sits within a forward-thinking, multi-sector team delivering fire engineering design solutions across a wide range of sectors including Cities & Development, Commercial, Energy, Residential and Transportation. There is flexibility around location. While much of the current Fire Engineering team is based in Derby and London, there is a clear ambition...

Senior / Principal Civil Engineer - Consultancy Central London (office-based, with site visits) Permanent Role Leading UK Civil & Structural Consultancy Competitive Salary + Excellent Benefits I'm working with a well-established, multi-office civil and structural engineering consultancy that has built a strong reputation for delivering complex and high-profile development projects across the UK. With offices in major cities and a proven track record of delivering thousands of successful schemes, they're known for their technical excellence, collaborative culture, and Director-led approach . The London team is continuing to grow, and they're now looking for a Senior or Principal Civil Engineer to play a key role in the design and delivery of civil infrastructure for a diverse range of commercial, residential, and industrial developments. The Role As part of the civil engineering design team, you'll take the lead on highways and drainage design...

Established building services consultancy, hands-on project exposure an structured career development This opportunity is suited to an ambitious Junior Electrical Design Engineer looking to develop their technical expertise within a well established, design-led building services consultancy. The role offers exposure to a wide variety of project types and the chance to grow within a supportive, experienced team. Based in North West London, the successful candidate will join a multi-disciplinary consultancy delivering innovative and sustainable engineering solutions across multiple sectors. The Role: The successful candidate will join an experienced electrical design team, working closely with mechanical engineers and senior electrical engineers to support the delivery of coordinated building services designs. This is an excellent opportunity for someone with 2-3 years' UK consultancy experience who is confident working in 2D CAD and keen to transition further into a...

Senior Electrical Design Engineer Location: Farringdon, London (3 days office / 2 days home) Salary: 60,000 (flexible for the right candidate) Benefits: To be confirmed A well-established building services consultancy in Central London is seeking an experienced Senior Electrical Design Engineer to join their growing team. This is an excellent opportunity to play a key role in delivering high-quality electrical designs across predominantly residential projects, with exposure to commercial schemes. The Role You will be heavily involved in RIBA Stages 3-4 , producing detailed electrical designs and coordinating with multidisciplinary teams to ensure technical compliance and smooth project delivery. Key Responsibilities Develop electrical building services designs across RIBA Stages 3-4 Produce detailed drawings and technical documentation using AutoCAD and Revit Undertake lighting calculations using Dialux or Relux Prepare Electrical O&M manuals...

Onsite IT Support Engineer / 2nd Line Desktop Support Technician A fantastic opportunity for a skilled IT Support professional with strong Microsoft 365, Azure and endpoint management experience to join a fast-growing managed services environment delivering high-quality technical support and cloud computing solutions. If you’ve also worked in the following roles, we’d also like to hear from you: 2nd Line Support Engineer, Technical Support Engineer, IT Helpdesk Analyst, Desktop Support Engineer, Application Support Analyst, IT Technician, Deskside Support Technician, Second Line Support, Service Desk Analyst, IT Support Technician, 2nd Line IT Engineer.   SALARY: £32,000 per annum + up to £4,000 Bonus + Benefits (see below) LOCATION: Fully Onsite at London client sites (zones 1-6) JOB TYPE: Full-Time, Permanent     ONLINE TEST: To be considered you must complete an online test to see how you compare with other...