11 senior platform engineer jobs found

Senior AI Engineer – TypeScript, React, .Net, AWS, Claude Code (or similar), Agentic Platform Development – OUTSIDE IR35 We’re seeking a Senior AI Engineer to lead the technical development of an autonomous agent platform: intelligent, self‑learning systems that act as digital counterparts to B2B professionals. You’ll be at the forefront of engineering agentic AI, multi‑agent orchestration, and production‑grade automation, building the foundations for next‑generation workflow intelligence. Working closely with Product, Architecture, Security, DevOps and Commercial teams, you’ll architect and deliver scalable AI solutions across front‑end, back‑end and cloud domains. You’ll establish the core platform that enables rapid deployment of customer‑facing AI features while ensuring reliability, security and seamless integration across the wider ecosystem. What You’ll Lead: Agentic Platform Development Architect and build scalable AI agent frameworks for...

Senior AI Engineer - TypeScript, React, .Net, AWS, Claude Code (or similar), Agentic Platform Development - OUTSIDE IR35 We're seeking a Senior AI Engineer to lead the technical development of an autonomous agent platform: intelligent, self-learning systems that act as digital counterparts to B2B professionals. You'll be at the forefront of engineering agentic AI, multi-agent orchestration, and production-grade automation, building the foundations for next-generation workflow intelligence. Working closely with Product, Architecture, Security, DevOps and Commercial teams, you'll architect and deliver scalable AI solutions across Front End, Back End and cloud domains. You'll establish the core platform that enables rapid deployment of customer-facing AI features while ensuring reliability, security and seamless integration across the wider ecosystem. What You'll Lead: Agentic Platform Development Architect and build scalable AI agent frameworks for autonomous...

Senior AI Engineer - Agentic Platforms - AWS/.Net/React - Polyglot £800-900/day | Outside IR35 | Remote (UK) | Initial 6 months Our client are looking build out their next-generation AI capability, focused on developing an autonomous agent platform that will sit at the core of their product offering. They're looking to bring in two Senior AI Engineers to take a hands-on role in designing and delivering production-ready, agentic systems - this is not research or POC work, it's about building scalable, real-world AI solutions that integrate directly into a live platform. The focus of the role is on developing intelligent, self-learning workflows, multi-agent systems, and AI-driven automation that supports real estate professionals in managing leads, workflows, and customer interactions. You'll be working closely with Product, Architecture, and Data teams to define and build the underlying platform, with a strong emphasis on engineering quality, scalability, and commercial...

Senior Machine Learning Engineer | Contract Role Outside IR35 | £600-700/day | Remote in the UK | Initial 3 Months We’ve partnered with a fast-growing tech business undergoing a major rebuild of one of their core platform capabilities. They’re looking for a Senior Machine Learning Engineer to help design and develop the modelling logic that underpins a critical decision-making system. This role sits at the intersection of machine learning, applied modelling, and software engineering - focused on solving complex, real-world problems rather than building standard predictive models. This is a hands-on role working within a small, high-impact team on a greenfield build, with direct input into how the system evolves over time. This is outside IR35, fully remote, with an initial 3-month contract and strong potential for extension. Key Responsibilities Design and build modelling logic that represents real-world rules, constraints, and pricing/cost...

Backend-leaning Staff Engineer to modernise a core CRM and build AI-driven agent capabilities We're supporting a propety-tech organisation undertaking a major modernisation of an established CRM platform, alongside building autonomous, AI-driven workflows directly into core business processes. This role is strongly Back End-focused, requiring deep .NET engineering expertise, combined with proven experience building agentic AI systems in production. T he Role Rebuild and enhance core CRM functionality within a live production environment Lead Back End development using .NET/C#, ensuring scalability, reliability, and maintainability Work across the stack where needed (TypeScript/React) but with a clear Back End-first focus Design and implement: Autonomous agents Self-learning systems AI-driven workflow automation platforms Integrate AI capabilities directly into core product workflows and business processes Drive incremental modernisation of Legacy...

Lead Data Engineer (BigQuery Consolidation, Migration & Architecture) – Contract Location: Hybrid - London Contract Length: Initial 4-week engagement with extension Day Rate: £700 per day (Outside IR35) Start Date: ASAP An ambitious, data-driven organisation is seeking a highly experienced Lead Data Engineer to assess and potentially lead the consolidation of a complex, fragmented data landscape into a single Google BigQuery platform. The business currently operates across multiple technologies and data warehouses, creating challenges around data consistency, reporting accuracy, and stakeholder trust. The objective is to establish a scalable, future-proof architecture that delivers a true single source of truth while supporting an AI-enabled data strategy. Initially, this will be a four-week exploratory engagement focused on validating the migration approach, identifying risks, and proving technical feasibility. For the right individual, there is...

Senior Data & ML Engineer Contract - Outside IR35 - Initial 6 month contract £650-£750 per day London - Hybrid working We are partnering with a rapidly growing financial services business that is investing heavily in its machine learning and data platform capabilities. This is a hands-on engineering role focused on helping Data Science teams build, deploy, and scale machine learning solutions in production. The work sits at the intersection of data engineering, machine learning engineering, and MLOps, with a strong focus on production systems, feature engineering, workflow orchestration, and model lifecycle management. What you'll be doing Design and build scalable data and feature engineering pipelines to support machine learning workloads Work closely with Data Scientists to operationalise models and improve the end-to-end machine learning lifecycle Develop and optimise PySpark-based data processing workflows and training pipelines Build and...

Senior AI Engineer – Agentic Platforms/£800–900/day/Outside IR35 Remote (UK)/6 months AWS/.Net/React We’re partnering with a market leader as they build out a next-generation AI platform at the core of their product suite. They’re looking for two Senior AI Engineers to design and deliver production-grade, agentic systems, this is not research or proof-of-concept work. You’ll be building scalable, real-world AI solutions embedded directly into a live platform. The focus is on developing intelligent, self-learning workflows, multi-agent systems, and AI-driven automation to support professionals in managing leads, workflows, and customer interactions. You’ll work closely with Product, Architecture, and Data teams to shape and deliver the underlying platform, with a strong emphasis on engineering quality, scalability, and commercial impact. - Key responsibilities: - Designing and building agentic architectures and multi-agent workflows - Developing AI-driven...

Senior AI Engineer - Agentic Platforms £800-900/day | Outside IR35 | Remote (UK) | Initial 6 months Our client are looking build out their next-generation AI capability, focused on developing an autonomous agent platform that will sit at the core of their product offering. They're looking to bring in two Senior AI Engineers to take a hands-on role in designing and delivering production-ready, agentic systems - this is not research or POC work, it's about building scalable, real-world AI solutions that integrate directly into a live platform. The focus of the role is on developing intelligent, self-learning workflows, multi-agent systems, and AI-driven automation that supports real estate professionals in managing leads, workflows, and customer interactions. You'll be working closely with Product, Architecture, and Data teams to define and build the underlying platform, with a strong emphasis on engineering quality, scalability, and commercial impact. Key areas of focus:...

£700 per day, Outside IR35 Immediate Start - ASAP 3 months with potential to extend Remote - may require occasional travel to client offices (Stevenage) My client is looking for a Salesforce Architect with strong, hands-on Jitterbit experience to join their team on an integration-focused engagement, working closely with the CTO, non-technical programme/platform leads, and delivery architects and engineers to build trust and drive momentum across the organisation. Key scope and expectations Act as technical lead and integration technical SME across an integration platform RFI/RFP, assessing options and fit with organisational needs A deep and proven track record of advising and agreeing strategy, options and roadmap with C-Suite stakeholders, having built strong trust-based relationships with multiple technical and non-technical C-Suite stakeholders Facilitate and produce agreed enterprise and platform architecture artefacts (e.g. platform models, capability mappings,...

£700 per day, Outside IR35 Immediate Start - ASAP 3 months with potential to extend Remote - may require occasional travel to client offices (Stevenage) My client is looking for a Salesforce Architect with strong, hands-on Jitterbit experience to join their team on an integration-focused engagement, working closely with the CTO, non-technical programme/platform leads, and delivery architects and engineers to build trust and drive momentum across the organisation. Key scope and expectations Act as technical lead and integration technical SME across an integration platform RFI/RFP, assessing options and fit with organisational needs A deep and proven track record of advising and agreeing strategy, options and roadmap with C-Suite stakeholders, having built strong trust-based relationships with multiple technical and non-technical C-Suite stakeholders Facilitate and produce agreed enterprise and platform architecture artefacts (eg platform models, capability mappings,...