37 senior platform engineer jobs found in London

Senior ML Platform Engineer London 5 Days a Week In Office £550- £700 Per Day, Outside IR35 Immediate Start The Company They are a technically ambitious organisation building advanced machine learning systems tightly integrated with real-world systems. Their platform supports the full lifecycle from data collection through to large-scale training and deployment. Engineering quality, reliability, and thoughtful system design are core to how they operate. The Role and Deliverables Own and evolve the operator-facing platform, including web UIs, backend services, and CLI tooling used for live data collection and dataset workflows. Design and maintain robust recording and orchestration systems that scale across robots, sensors, and lab environments. Collaborate with the ML team on dataset builders, ingestion pipelines, and infrastructure supporting large-scale distributed training. Partner with robotics engineers on ROS2 integration,...

Senior Data / ML Platform Engineer Contract | Outside IR35 | London - Hybrid £600-£700 (negotiable) DW Search is partnering with a rapidly growing organisation undertaking a significant data and machine learning transformation. We're looking for a senior engineer who can help bridge the gap between data engineering, platform engineering, and machine learning operations. This role focuses on building the systems, workflows, and infrastructure that enable machine learning models to move from experimentation into reliable production use. This is not a research or modelling role. Instead, you'll work closely with Data Scientists and engineering teams to productionise machine learning workflows, improve platform capabilities, and build scalable foundations for future AI and ML initiatives. What you'll be doing Build and optimise production-grade data and machine learning pipelines Develop feature engineering workflows that support model training and...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

AI Engineer | Hybrid | London | Outside IR35 | 6+ Months Cititec are working with a global financial markets organisation on a large scale data and platform transformation. They are looking for a Senior AI Engineer to help accelerate the migration of a complex data estate from Oracle to a Microsoft centric architecture across Azure, Cosmos DB, Microsoft Fabric and Azure Data Factory. The role will focus on applying AI and GenAI to improve developer productivity and engineering throughput, particularly across data migration, code generation and developer tooling. This includes deploying AI agents and AI assisted development tools within the Azure ecosystem. This is a high impact role operating across a large engineering environment, helping scale modern engineering practices and AI enabled development across a significant developer base.

Role Summary Wagglyn is looking for an experienced HFT DevOps: infrastructure engineer to work with the existing engineering team on the deployment, operation and production readiness of a low-latency FX trading platform. This is a hands-on contract role for someone who has worked with real production infrastructure, HFT systems, data-centre deployments or high-availability backend platforms. It is not a generic cloud-only DevOps role. Scope The contractor will help prepare, operate and support the infrastructure required to run Wagglyn’s MVP trading stack across our production sites, cloud/UAT environments and interim infrastructure. The role will involve working with the engineering team to document the current environment, define deployment and access processes, support the migration from interim to physical infrastructure, and put in place the monitoring, runbooks and controls needed for production operation. Profile ·     Senior hands-on...

Data Engineer - Contract - Outside IR35 - Wembley Hybrid This position will focus on improving and maturing the existing data platform, developing scalable data structures and pipelines, and supporting the wider business in maximising the value of its data. The environment has been established within Microsoft Fabric for several years, however there remains significant opportunity to improve data warehousing structures, data modelling, governance and reporting capabilities. The successful candidate will work across the full data lifecycle, from ingestion and transformation through to reporting and security, while collaborating closely with Data Analysts and business stakeholders. This is a hands-on role suited to someone who enjoys building practical, maintainable solutions and can balance strong technical capability with a business-focused approach. Key Responsibilities Design, develop and maintain data pipelines within Microsoft Fabric. Build and enhance...

AI Engineer Hybrid London Outside IR35 6+ Months Cititec are working with a global financial markets organisation on a large scale data and platform transformation. They are looking for a Senior AI Engineer to help accelerate the migration of a complex data estate from Oracle to a Microsoft centric architecture across Azure, Cosmos DB, Microsoft Fabric and Azure Data Factory. The role will focus on applying AI and GenAI to improve developer productivity and engineering throughput, particularly across data migration, code generation and developer tooling. This includes deploying AI agents and AI assisted development tools within the Azure ecosystem. This is a high impact role operating across a large engineering environment, helping scale modern engineering practices and AI enabled development across a significant developer base.

SENIOR APPLICATION SECURITY ENGINEER AGENTIC AI SECURITY PLATFORM £800 - 900 per Day (Dependent on Experience) Our Client is a major Financial Services Organisation undertaking a major Security Architecture Programme. They are now entering the Production Build Phase of an Agentic Application Security Agent that will fundamentally change how their Application Security is Delivered within the SDLC click apply for full job details

Job Information Date Opened 05/06/2026 Job Type Contract Industry Government & Public Sector Work Experience 5+ years Salary 400-500 Outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Consulting Scrumconnect Consulting is a leading UK digital and technology consultancy specialising in delivering impactful, user-centred services for the public sector. We work with central government departments, agencies, and local authorities to build digital products and services that improve outcomes for citizens. With a team of engineers, architects, delivery professionals, and designers, we bring deep expertise in digital transformation, cloud technologies, and agile delivery. We are committed to engineering excellence, innovation, and creating an inclusive environment where everyone can thrive. Role Overview We are seeking an experienced Azure...

Senior Software Engineer | :£950/day Outside IR35 | 6-months initial contract | London Industry: Trading Location: London - 4 days in office Job Type: Contract - 6-month initial Our client is building the next generation of execution and order management (EMS/OMS) infrastructure for global commodities trading. You will join a small, fast-moving engineering team designing and delivering a cloud-native trading platform from the ground up, tightly integrated with risk, pricing, and market data systems to support high-performance trading environments. This is a senior, hands-on role for an engineer who wants end-to-end ownership — from low-level protocol integration through to distributed execution services and trader-facing tooling. What You’ll Be Doing Design and build core components of a modern EMS/OMS platform, including order routing, order lifecycle management, venue connectivity, and execution analytics. Implement and maintain FIX protocol and...

Senior Java Developer / AI Engineer - Design & Build Payment Product / Fintech / Banking. Spring Boot, Claude/Codex also essential. ANY PAYMENT PRODUCT CONSIDERD from Current Account OR SAVINGS OR ISA's OR Fixed Term Deposits, Lending etc. £600-£650/DAY OUTSIDE IR35 PAY. Our Fintech Challenger Bank client based in Central London seeks a dynamic, eager to learn and technically astute Java Software Engineer who has extensive experience in Designing & Building a Payment Product *NOT PAYMENT PLATFORM* so the ideal candidate will come from for e.g. a Challenger Bank or Fintech Payment Product Company. STRONG skills in Java, Spring Boot, AI (Claude or Codex), working in a Fintech Payment domain. YOU WILL NOT BE CONSIDERED IF YOU DO NOT HAVE FINTECH & DESIGN & BUILD PAYMENT PRODUCT EXPERIENCE WITH JAVA, SPRING & STRONG AI! Our client is hiring a hands-on SENIOR Software Engineer / Java Developer to support delivery and development of Savings products...

Application Packaging Engineer Contract Engagement .Location: Hybrid 1-2 days onsite in London .Rate: Outside IR35 . Overvi ewAn opportunity to own application packaging and conversion for a new VDI/Intune platform at enterprise scale - App Volumes, MSIX, App-V and Intune Win32 packaging. In this role you will partner with an AccessIT Application Packager resource on volume packaging and tooling automation, authoring standards and runbooks across a globally distributed team in a regulated environmen t. Key Responsibiliti es:Package in-scope application catalogue for App Volumes, MSIX and Intune Win32 deploym entPartner with AccessIT Application Packager on volume packaging and tooling automat ionAuthor packaging standards, runbooks and the application delivery and integration stand ardSupport smoke, performance and UAT testing for packaged applicati ons Requireme nts:5+ years hands-on application packaging at enterprise sc ale.Must be...

Senior Data Engineer - Contract (outside IR35) - up to £550 per day We’re hiring a Senior Data Engineer to join a leading global organisation, helping to build and enhance a modern data platform within the insurance sector. NB London Market Insurance experience is essential. If you do not have this experience, you will not be eligible for this role. The role You’ll design and develop data pipelines using ETL/ELT, ensuring strong standards in testing, reconciliation, and documentation. You’ll contribute to data modelling, support data delivery, and build APIs/services for stakeholders. You’ll also collaborate across teams, promote best practices, and mentor junior colleagues in an Agile environment. Key requirements London Market Insurance experience (must-have) Advanced T-SQL, SSIS, Azure Data Factory Power BI/SSRS, MDX/DAX Strong data modelling Experience with Azure & on-prem SQL Azure DevOps, data APIs, solid documentation/testing practices...

Principal/Lead Engineer Python/Cloud/Terraform/IAM/DevOps/infrastructure-as-a-code IaC Rate: Circa £600 - £700 PD (Outside IR35), 6 months Location: London/Hybrid x2 days We are seeking an experienced Principal/Lead Engineer to join a highly ambitious organisation building a large-scale, mission-critical data and technology platform. This is a unique opportunity to join at the earliest stages of a major programme and play a key role in shaping its technical foundations. Working closely with the CTO and a small team of senior engineers, you will lead the design and implementation of core infrastructure, establish engineering standards and practices, and make architectural decisions that will have long-term strategic impact. If you enjoy solving complex technical challenges, influencing technology strategy, and creating robust engineering foundations, this role offers an exceptional opportunity to make a lasting impact. Role & Responsibilities Technical Leadership...

Senior Databricks Architect/Lead Databricks Engineer - Salesforce Data Architecture exp is a MUST Remote (UK) £700/day Outside IR35 Initial 12-Month Contract | Long-Term Programme | Poosible Extension We're seeking an exceptional Senior Databricks Architect with a strong hands-on Data Engineering background to join a major long-term transformation programme. This is not a pure architecture role. You'll be a Databricks specialist who remains close to the technology, designing and building enterprise-scale data solutions while driving engineering excellence across critical data platforms. You'll take ownership of delivering robust, scalable, and production-grade data solutions within a modern Databricks ecosystem, ensuring platforms are governed, secure, maintainable, and optimised for long-term growth. Key Responsibilities Architect, build and optimise enterprise-grade data solutions within Databricks Design and...

Principal / Lead Engineer Python / Cloud / Terraform / IAM / DevOps / infrastructure-as-a-code IaC Rate: Circa £600 - £700 PD (Outside IR35), 6 Months Location: London / Hybrid x2 days We are seeking an experienced Principal / Lead Engineer to join a highly ambitious organisation building a large-scale, mission-critical data and technology platform. This is a unique opportunity to join at the earliest stages of a major programme and play a key role in shaping its technical foundations. Working closely with the CTO and a small team of senior engineers, you will lead the design and implementation of core infrastructure, establish engineering standards and practices, and make architectural decisions that will have long-term strategic impact. If you enjoy solving complex technical challenges, influencing technology strategy, and creating robust engineering foundations, this role offers an exceptional opportunity to make a lasting impact. Role &...

AI Engineer | Hybrid | London | Outside IR35 | 6 + Months Cititec are working with a global financial markets organisation on a large scale data and platform transformation. They are looking for a Senior AI Engineer to help accelerate the migration of a complex data estate from Oracle to a Microsoft centric architecture across Azure, Cosmos DB, Microsoft Fabric and Azure Data Factory. The role will focus on applying AI and GenAI to improve developer productivity and engineering throughput, particularly across data migration, code generation and developer tooling. This includes deploying AI agents and AI assisted development tools within the Azure ecosystem. This is a high impact role operating across a large engineering environment, helping scale modern engineering practices and AI enabled development across a significant developer base.

Principal / Lead Engineer Python / Cloud / Terraform / IAM / DevOps / infrastructure-as-a-code IaC Rate: Circa £750 - £800 PD (Outside IR35), 6 Months Location: London / Hybrid x2 days We are seeking an experienced Principal / Lead Engineer to join a highly ambitious organisation building a large-scale, mission-critical data and technology platform. This is a unique opportunity to join at the earliest stages of a major programme and play a key role in shaping its technical foundations. Working closely with the CTO and a small team of senior engineers, you will lead the design and implementation of core infrastructure, establish engineering standards and practices, and make architectural decisions that will have long-term strategic impact. If you enjoy solving complex technical challenges, influencing technology strategy, and creating robust engineering foundations, this role offers an exceptional opportunity to make a lasting impact. Role &...

🚀 Senior Front-End Engineer – Investment Banking | Contract Upto £800 p/d (Outside IR35) | London / Hybrid (1 Day/Week in Office) We are partnering with a global investment bank to hire a Senior Front-End Engineer to join a flagship team delivering a next-generation, single-page application (SPA) platform for high-performance derivatives trading. This is a high-profile role on a mission-critical, front-office system with exceptional technical standards. You’ll work at the cutting edge of financial technology, contributing to a modern, reactive web platform used across trading desks. This is not your typical enterprise UI – it’s fast, data-intensive, and built to scale with real-time demands in a trading environment. 💼 The Opportunity Collaborate with elite engineers on a SPA used across the investment bank for derivatives trading. Build elegant, high-performance UIs with real-time data updates and functional programming paradigms. Shape a front-end...

AI Engineer | Hybrid | London | Outside IR35 | 6 + Months Cititec are working with a global financial markets organisation on a large scale data and platform transformation. They are looking for a Senior AI Engineer to help accelerate the migration of a complex data estate from Oracle to a Microsoft centric architecture across Azure, Cosmos DB, Microsoft Fabric and Azure Data Factory. The role will focus on applying AI and GenAI to improve developer productivity and engineering throughput, particularly across data migration, code generation and developer tooling. This includes deploying AI agents and AI assisted development tools within the Azure ecosystem. This is a high impact role operating across a large engineering environment, helping scale modern engineering practices and AI enabled development across a significant developer base.