Python AI Engineer London - Hybrid Rate: 600 - 700 Per day - Inside IR35 Start: Mid October Contract - 6 Months Python AI Engineer required to develop production-grade Python services for Generative AI and complex RAG solutions. You will work across AI workflow orchestration, information retrieval, evidence processing, LLM integration, response generation and validation This role requires strong production Python experience and practical experience delivering Generative AI and RAG solutions beyond proof of concept. Job Responsibilities/Objectives: Design, develop and maintain production-grade Python services for Generative AI and RAG solutions. Build and integrate LLM workflows using structured outputs, tool calling, schema validation and controlled fallbacks. Implement vector, lexical and hybrid retrieval, metadata filtering, reranking and evidence selection. Build asynchronous services with appropriate timeout, retry, cancellation and exception handling....

Exciting Opportunity for a Sub Agent in the Water/Wastewater Industry Role: Sub Agent Location: Multiple Position across Lancashire Rate: Up to £600 per day DOE - Inside IR35/Umbrella PAYE Duration: 12 Months+ Sector: Wastewater Non-Infrastructure About the business Join a dynamic Tier 1 contractor at the forefront of the water industry, currently delivering major projects across the United Utilities framework. Due to continued growth and a strong pipeline of AMP8 work, an exciting opportunity has arisen for an experienced Sub Agent to support the successful delivery of wastewater and water treatment projects across the Lancashire region. This contractor is recognised for embracing innovation and digital engineering, investing heavily in modern construction technologies, BIM and digital delivery systems to improve project performance. If you're looking to join a forward-thinking business that is leading the way in technology and project delivery, this is an opportunity not...

Senior Flutter Engineer Full-time Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB Join a dynamic energy provider dedicated to sustainable solutions in the UK. We are seeking an experienced Senior Flutter Engineer to join a fast-paced development team delivering high-quality mobile applications. You will play a key role in designing, developing, and maintaining cross-platform applications using Flutter, while contributing to architecture decisions, code quality, and engineering best practices. Initially it will be a six-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in their London. It is a full-time role, 37 hours per week. If this role feels right, send us your CV. Accountabilities: Design, develop, and maintain scalable Flutter applications for iOS and Android. Collaborate with Product Managers, UX/UI Designers, and Backend...

Role: Electrical Systems Modelling and Simulation Engineer Location: Derby or Bristol - 3 days in office / 2 days work from home Rate: Umbrella: 98 per hour / PAYE: 82.70 per hour Duration: 12 months with the likelihood of extending Hours: 37.5 hours per week Monday to Friday Proactive currently have an excellent opportunity for an Electrical Systems Modelling Engineer to work on cutting-edge defence technology, helping to model, simulate and validate the electrical systems that will power future airborne platforms. Working within a team of simulation experts, the Electrical System Modelling & Simulation Engineer will support the design, integration and validation of complex electrical systems through advanced modelling, simulation and analysis. This is a highly innovative R&D environment where the Electrical Systems Modelling Engineer will influence future technologies. Key Responsibilities Develop electrical system models and simulations to support...

Role: Electrical Systems Modelling and Simulation Engineer Location: Derby or Bristol - 3 days in office / 2 days work from home Rate: Umbrella: 98 per hour / PAYE: 82.70 per hour Duration: 12 months with the likelihood of extending Hours: 37.5 hours per week Monday to Friday Proactive currently have an excellent opportunity for an Electrical Systems Modelling Engineer to work on cutting-edge defence technology, helping to model, simulate and validate the electrical systems that will power future airborne platforms. Working within a team of simulation experts, the Electrical System Modelling & Simulation Engineer will support the design, integration and validation of complex electrical systems through advanced modelling, simulation and analysis. This is a highly innovative R&D environment where the Electrical Systems Modelling Engineer will influence future technologies. Key Responsibilities Develop electrical system models and simulations to support...

Role: Electrical Systems Modelling and Simulation Engineer Location: Derby or Bristol - 3 days in office / 2 days work from home Rate: Umbrella: 98 per hour / PAYE: 82.70 per hour Duration: 12 months with the likelihood of extending Hours: 37.5 hours per week Monday to Friday Proactive currently have an excellent opportunity for an Electrical Systems Modelling Engineer to work on cutting-edge defence technology, helping to model, simulate and validate the electrical systems that will power future airborne platforms. Working within a team of simulation experts, the Electrical System Modelling & Simulation Engineer will support the design, integration and validation of complex electrical systems through advanced modelling, simulation and analysis. This is a highly innovative R&D environment where the Electrical Systems Modelling Engineer will influence future technologies. Key Responsibilities Develop electrical system models and simulations to support...

Job Title: Senior Project Manager Location: London/York/Peterborough (whichever is closest) 3 days per week on site/ hybrid Contract Duration : 10 Months Daily Rate: £523 -£660 per day IR35 Status : Inside We are seeking an experienced Senior Project Manager to lead the delivery of a portfolio of Electrical Safety programmes and standards implementation projects across the Region. Reporting into the Electrical Safety leadership team, you will manage a small team of three engineers while coordinating multiple workstreams that support both national standards development and regional implementation activities As a Senior Project Manager, your main responsibilities will be to: Project manage a small team of three engineers supporting the Central Electrical Safety Delivery Team with the development of electrical safety standards and supporting the Eastern Region with the implementation of standards and technology changes. Develop, maintain and monitor project plans,...

Role: Electrical Systems Modelling and Simulation Engineer Location: Derby or Bristol - 3 days in office / 2 days work from home Rate: Umbrella: 98 per hour / PAYE: 82.70 per hour Duration: 12 months with the likelihood of extending Hours: 37.5 hours per week Monday to Friday Proactive currently have an excellent opportunity for an Electrical Systems Modelling Engineer to work on cutting-edge defence technology, helping to model, simulate and validate the electrical systems that will power future airborne platforms. Working within a team of simulation experts, the Electrical System Modelling & Simulation Engineer will support the design, integration and validation of complex electrical systems through advanced modelling, simulation and analysis. This is a highly innovative R&D environment where the Electrical Systems Modelling Engineer will influence future technologies. Key Responsibilities Develop electrical system models and simulations to support...

Key responsibilities include: Manage ECI, advanced and main works packages, including surveys, design, enabling and construction activities. Provide end-to-end project management against cost, programme, quality, safety and commercial objectives, with package values up to 35m. Lead coordination between client, contractor, designer and key stakeholders across complex rail and civils interfaces. Manage delivery within an NEC4 Target Cost Contract environment, including cost control, change, risk and forecasting. Support PACE, governance, procurement and assurance requirements. Manage access, possessions, logistics and construction sequencing within an operational railway environment. Support scope development, optioneering, value engineering and delivery strategies. Ensure compliance with Network Rail standards, CDM 2015, safety, quality and performance requirements. Manage project risks, opportunities, KPIs and project controls. Coordinate delivery across civils,...

Senior Quantity Surveyor Water Location: Lincoln / Lincolnshire Rate: £550 £580 per day (Inside IR35) Contract: Freelance Initial 6 Months Working Pattern: Circa 3 days site/office, 2 days home Start: ASAP An excellent opportunity has arisen for an experienced Senior Quantity Surveyor to join a major UK infrastructure contractor delivering capital maintenance works across the water sector. The role will initially be a 6-month contract and will see you joining a close-knit commercial team responsible for delivering a portfolio of capital maintenance schemes across Lincolnshire. With a number of projects currently working towards key completion dates, we are looking for an experienced commercial professional who can quickly integrate into the team, take ownership of existing schemes and drive them through commercial close-out. Projects typically range from circa £500k up to £2m in value. Key Responsibilities Commercial management of multiple capital maintenance...