46 senior platform engineer jobs found in London, greater london

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...

🚀 Senior Platform Engineer – Outside IR35 🚀 📍 London (3 days onsite) 📅 Start: July 💰 Depending on experience ⏳ 6 Months Initial I'm working with a leading engineering consultancy who are building a cohort of senior engineers to support a large-scale enterprise software programme. We're particularly interested in platform-focused engineers with deep cloud and Kubernetes expertise. The Role Design, deploy and operate cloud-native platforms Support engineering teams with scalable infrastructure and developer tooling Build secure, highly available environments across AWS, Azure and GCP Contribute to platform automation, observability and infrastructure-as-code initiatives Experience Required Kubernetes (EKS, AKS or GKE) Terraform and Infrastructure as Code AWS, Azure and/or GCP CI/CD, GitOps and platform automation Security, governance and cloud best practices Experience supporting enterprise SaaS platforms A plus if you have...

Senior D365 Engineer (Finance & Operations) Outside IR35 / Fully remote working / £400 - 575 per day We're working with a fast-growing global consumer brand looking for a Senior D365 F&O Engineer to help scale and optimise their finance technology landscape. You'll be responsible for delivering end-to-end D365 F&O solutions, building integrations across enterprise systems, and working closely with finance and engineering teams to drive business-critical initiatives. 6+ years' D365 F&O development experience Strong X++, C#/.NET and TypeScript skills Experience within retail, e-commerce or consumer-focused businesses Knowledge of finance processes (GL, AP, AR, reporting) Azure DevOps, CI/CD and integration experience This is a fantastic opportunity to join a high-growth organisation where you'll have real influence on architecture, platform development and future technology strategy. Outside IR35 / Fully remote working / £400 - 575...

We're partnering with a leading energy trading organisation at the forefront of global commodities markets, currently investing heavily in their ETRM platform. As part of this growth, they're looking for an experienced Java Developer to join a high-performing engineering team delivering scalable, front-to-back trading solutions. This is a standout opportunity for a strong Java engineer with energy trading exposure who is keen to step into the world of Endur ETRM and OpenComponents, gaining highly sought-after domain and platform expertise  The Opportunity You'll work on business-critical systems that support trading, risk, and operations across power, gas, and wider commodities markets. The role blends core Java engineering with the chance to quickly upskill in Endur, supported by a team of experienced SMEs. This is ideal for someone looking to bridge the gap between pure software engineering and specialist ETRM platforms Responsibilities Designing and...

Role: AI Engineer - Contract Role Seniority: Consultant - Senior Manager Day rate: Negotiable and outside IR35 Project duration: 4-6 months (3-4 days per week) Location: Hybrid in London We’re supporting a consultancy that specialises in growth and go-to-market transformation, known for fostering strong relationships while designing and delivering large-scale improvements worldwide. You'll have the opportunity build an AI capability from the ground up, designing agentic workflows that embed sales methodology into the tools teams use every day (Salesforce and Microsoft 365). You’ll work closely with GTM leadership and senior stakeholders, gaining exposure to commercial strategy while driving practical behaviour change. We’ve a preference for you to apply directly via the Project Blackbook website as the consultancy will eventually view your profile in our platform. If you are already in the community, feel free to quickly apply here or reach out to your...

SC/DV Cleared Technical Lead Engineer I'm looking for an experienced Lead Engineer with active SC or DV Clearance to provide technical leadership across complex cloud and software delivery programmes. You'll work closely with engineering teams, architects, delivery leads, and stakeholders to guide solution design, drive engineering best practice, and support successful delivery from concept through to production. Rate : £600-£650/day Outside IR35 Location : London (2-3 days/week) Contract Length : 12 months Clearance : Active SC or DV (non-negotiable) Key Responsibilities Provide technical leadership across delivery teams. Guide solution design, implementation, and operational readiness. Review technical approaches to ensure scalability, security, and maintainability. Mentor engineers and promote engineering best practices. Support Agile delivery and continuous improvement initiatives. Collaborate with architecture, security, DevOps, and testing teams. Act as an...

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.

IT Systems Engineer (Level 2) 6 Months £300 Outside IR35 Hybrid About the Role As IT Systems Engineer (Level 2), you will be the senior technical resource within the IT team, acting as the primary escalation point for complex issues whilst taking ownership of the Microsoft 365, Azure and security platforms that underpin the business. This is a hands-on engineering role combining support, infrastructure administration, security, automation and platform governance. You'll work closely with the Level 1 Analyst, lead technical improvements, and play a key role in maturing BGS's independent IT environment. We're looking for someone who enjoys solving problems, improving systems, automating repetitive tasks, and taking ownership of technology rather than simply maintaining it. Key Responsibilities IT Operations & Support Act as the senior escalation point for complex technical issues across the Microsoft estate. Handle support tickets alongside...

Senior Software Engineer - AI-Assisted Legacy Medernisation Outside IR35 - Contract (Insurance Client) About the role Softwire is helping our client modernise a business-critical legacy platform, moving it off Oracle Forms and onto a modern React and .NET stack, with the underlying Oracle database migrating to Azure SQL. We're looking for a strong full-stack contract developer to join the existing team and drive this migration forward. What sets this role apart is that the use of AI tools is the main focus, not a nice-to-have. You'll use tools such as Claude to accelerate the translation of Oracle Forms logic into the new stack and to support the database migration. We want someone who already works this way day to day and can show how AI changes the pace and quality of their delivery. Key Responsibilities Work alongside our team to migrate the legacy product onto a React / .NET architecture, keeping pace with the team's Jira workflow. Use AI tools...

Senior Software Engineer - Outside IR35 - Contract (Energy Client) About the role Softwire is looking for an experienced Software Engineer to join a team delivering the first phase of a major replatforming project. You will work in a collaborative, technically focused environment, helping to modernise a data platform that currently relies on Power Automate, Power BI, and Python scripts. You can work remotely from anywhere in the UK, as client site visits aren't mandatory. Phase one of the project will introduce a SQL database and Azure Function Apps, alongside a migration of data from SharePoint into the new database. This is a hands-on engineering role with real impact from day one. Key Responsibilities Design and build Azure Function Apps to support the replatforming initiative. Develop and maintain SQL database schemas, queries, and data pipelines. Contribute to the migration of data from SharePoint into the new database. Work with existing Power...

Senior AI Voice Engineer £500 - £550 per day Outside IR35 Remote (occasional London meet-up) Initial 6 Month Contract We are looking for a Senior AI Voice Engineer to help build and scale a production-grade AI voice platform for a major UK financial services organisation. This is not a proof-of-concept role. The business has already built initial Python-based prototypes and is now looking for an experienced contractor to take the solution into production, helping define the architecture, challenge technical decisions, and build a scalable platform capable of handling real customer interactions. You'll work directly with senior stakeholders and have significant influence over both the technical direction and implementation approach. What You'll Be Doing Designing and building production-grade AI voice agent solutions Developing scalable Python services and APIs Working with speech-to-text (STT), large language models (LLMs) and text-to-speech (TTS)...

Senior Mobile QA Engineer (iOS & Android) £400 - £425 per day | Outside IR35 | Initial 6-Month Contract | Hybrid (Stratford, London) | Immediate Start Available Our trusted partner within the Ed-Tech sector, employing over 10,000 people across 100 countries and supporting more than 600 million users globally, is seeking an experienced Senior Mobile QA Engineer to join a high-profile product engineering team developing innovative mobile learning applications. This role is ideal for a QA professional with extensive experience testing native and cross-platform mobile applications across iOS and Android environments, coupled with a strong background in test automation and modern Agile delivery practices. Key Responsibilities Lead quality assurance activities across mobile applications, ensuring exceptional user experience on both iOS and Android platforms. Develop and execute comprehensive test strategies, test plans and test cases. Design, implement and...

Senior Data Engineer / GCP / Looker / Big Query £500 - 550 per day (Outside IR35) London / Hybrid (1 day a week) This is an opportunity for you to join a rapidly growing ecommerce business who are looking for a Senior Data Engineer. This role is ideal for someone who has built and operated modern data platforms natively within GCP and can take ownership of the full data engineering lifecycle, from ingestion and transformation through to semantic modelling and reporting enablement. You must have experience in designing, building and optimising scalable data pipelines within the GCP ecosystem. You must also have experience working with Looker as this role with be integral between the commercial and BI teams. Key Requirements: Expert experience across the Google Cloud Platform ecosystem Hands-on experience with BigQuery, including optimisation, modelling and performance tuning Proven experience building scalable data pipelines within GCP Strong knowledge of...

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 Data Engineer – DBT, AWS (native), AWS DMS, ETL, Warehouse Architecture, Redshift, IaC (Terraform) Reporting to the Head of Data for this global, rapidly modernising SaaS platform , this business is scaling its data capabilities to support native AI engineering and agentic workflows. We’re looking for a Senior AWS Data Engineer who wants to shape the future of their data platform, modern analytics stack, and the way data powers decisions across the business. This is a hands‑on, architecture‑shaping, strategy‑influencing role for someone who thrives at the intersection of engineering excellence, data modelling, platform design and cross‑functional leadership. You’ll own the full data lifecycle from ingestion to modelling to consumption , and play a pivotal role in building a reliable, governed, cloud‑native data ecosystem. What you’ll be doing: Architect and deliver a cloud‑native data platform across ingestion, modelling, warehousing and BI...

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...

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 Engineer - DBT, AWS (native), AWS DMS, ETL, Warehouse Architecture, Redshift, IaC (Terraform) - OUTSIDE IR35 Reporting to the Head of Data for this global, rapidly modernising SaaS platform , this business is scaling its data capabilities to support native AI engineering and agentic workflows. We're looking for a Senior AWS Data Engineer who wants to shape the future of their data platform, modern analytics stack, and the way data powers decisions across the business. This is a hands-on, architecture-shaping, strategy-influencing role for someone who thrives at the intersection of engineering excellence, data modelling, platform design and cross-functional leadership. You'll own the full data life cycle from ingestion to modelling to consumption , and play a pivotal role in building a reliable, governed, cloud-native data ecosystem. What you'll be doing: Architect and deliver a cloud-native data platform across ingestion, modelling, warehousing...

Senior Data Engineer | Hybrid | Outside IR35 | £475 - £525 | London We are looking for a Senior Data Engineer to join a leading organisation on a contract basis. This role will suit someone with strong experience across the Azure data platform , particularly Databricks and PySpark , who can take ownership of data engineering delivery from design through to implementation. This is a hybrid role requiring the candidate to be on site 2 days per month. You will be working on building and enhancing modern data platforms, delivering scalable data pipelines, and supporting high-volume data processing in a cloud environment. Key Responsibilities Design and build scalable data pipelines using Azure technologies Develop and optimise solutions in Databricks using PySpark Work with large and complex datasets, including streaming and batch data Build and maintain data platforms and data warehouses Implement ETL/ELT processes and data transformation logic Collaborate...

Senior Data Engineer | Hybrid | Outside IR35 | £475 - £525 | London We are looking for a Senior Data Engineer to join a leading organisation on a contract basis. This role will suit someone with strong experience across the Azure data platform , particularly Databricks and PySpark , who can take ownership of data engineering delivery from design through to implementation. This is a hybrid role requiring the candidate to be on site 2 days per month. You will be working on building and enhancing modern data platforms, delivering scalable data pipelines, and supporting high-volume data processing in a cloud environment. Key Responsibilities Design and build scalable data pipelines using Azure technologies Develop and optimise solutions in Databricks using PySpark Work with large and complex datasets, including streaming and batch data Build and maintain data platforms and data warehouses Implement ETL/ELT processes and data...