57 senior platform engineer jobs found in London

Role description Location: London (Hybrid – 3 days onsite, mandatory) Employment Type : Permanent | Fixed-Term Contract | Contract (Inside IR35) Start Date : Immediate/ Short Notice period About the Role We are seeking a Senior Platform Engineer (AI, AWS & Developer Experience) to help design and build the platform from the ground up. This is a hands-on engineering role focused on AWS-native application development, internal developer platforms, agentic AI, automation, and engineering governance. You will create the tools, APIs, developer workflows, AI services, and platform capabilities that accelerate software delivery while embedding security, compliance, and operational excellence by default. Key Responsibilities Build cloud-native platform services, APIs, developer tooling, and automation on AWS. Design and develop AI-powered engineering capabilities using AWS Bedrock and agentic AI frameworks. Create reusable platform...

Location: London (Hybrid – 3 days onsite, mandatory) Employment Type : Permanent | Fixed-Term Contract | Contract (Inside IR35) Start Date : Immediate/ Short Notice period About the Role We are seeking a Senior Platform Engineer (AI, AWS & Developer Experience) to help design and build the platform from the ground up. This is a hands-on engineering role focused on AWS-native application development, internal developer platforms, agentic AI, automation, and engineering governance. You will create the tools, APIs, developer workflows, AI services, and platform capabilities that accelerate software delivery while embedding security, compliance, and operational excellence by default. Key Responsibilities Build cloud-native platform services, APIs, developer tooling, and automation on AWS. Design and develop AI-powered engineering capabilities using AWS Bedrock and agentic AI frameworks. Create reusable platform patterns, templates, and...

Role description Location: London (Hybrid – 3 days onsite, mandatory) Employment Type : Permanent | Fixed-Term Contract | Contract (Inside IR35) Start Date : Immediate/ Short Notice period About the Role We are seeking a Senior Platform Engineer (AI, AWS & Developer Experience) to help design and build the platform from the ground up. This is a hands-on engineering role focused on AWS-native application development, internal developer platforms, agentic AI, automation, and engineering governance. You will create the tools, APIs, developer workflows, AI services, and platform capabilities that accelerate software delivery while embedding security, compliance, and operational excellence by default. Key Responsibilities Build cloud-native platform services, APIs, developer tooling, and automation on AWS. Design and develop AI-powered engineering capabilities using AWS Bedrock and agentic AI frameworks. Create reusable platform...

What is Flagstone? Flagstone is many things. An online savings platform, reinventing how individuals, businesses, and charities manage, protect, and grow their cash. A diverse group of people, bound by a collaborative spirit, and shared purpose. And lastly, a thriving, profitable business – where smart people do their best work. Each definition shares a common thread: our unique culture. It’s our pride and joy. And our competitive advantage. A feel for our culture: To revolutionise the savings market, we need to be at our best. But high performance takes more than talent – it takes a culture of kindness, respect, and growth. That’s why we’re building a diverse, inclusive community, where your voice is heard and valued. Where, with close support and room to develop, you can surpass even your own expectations. And be rewarded for it. We may not change the world, but we can change the world of financial technology. And all it...

Mandatory Skillsets: Python, Snowflake, dBT, dremio, glue jobs, Apache iceberg, AWS,SQL Key Responsibilities: Architect and Develop : Contribute to the platform's architectural design and build integration, modelling, data persistence, and analytical systems. Data Pipelines : Implement, maintain, and test robust data pipelines. Metadata Management : Develop and manage metadata processes and tools. Performance Monitoring : Ensure the stability and performance of data pipelines. Data Quality : Implement tools for data curation, metadata management, and quality assurance. Collaboration : Engage with business and technology teams to align the platform with organizational goals. Preferred Technical Skills: Programming : 5+ years of experience in Python/Java. Cloud Expertise : Strong understanding of AWS services (eg, Lambda, Step Functions, ECS). Data Platforms : Hands-on experience with Snowflake and data stack technologies like...

  Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for Senior Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires...

  Senior TypeScript Engineer (Node.js, AWS Serverless), FinTech Location: London, Manchester, Leeds, Edinburgh or Bristol (flexible hybrid) Rate: £600 per day. Inside IR35 Duration: 6 months About Codurance We 're a software craftsmanship consultancy. We build software for clients, and we care about doing it properly: clean code, solid testing, sensible architecture, and teams that keep learning. Our engineers work embedded with client teams, so you get variety, real ownership, and the backing of a wider community of craftspeople who 'll challenge you and help you grow. The role We 're looking for a senior contract engineer to work on a financial platform where correctness actually matters. You 'll design, build, and run TypeScript and Node.js services on AWS serverless infrastructure. You 'll work in a small, cross-functional team alongside product, operations, and customer-facing colleagues, and you 'll be the person people go to when they 're...

Senior Cloud Engineer - Contract What is Flagstone? Flagstone is many things. An online savings platform, reinventing how individuals, businesses, and charities manage, protect, and grow their cash. A diverse group of people, bound by a collaborative spirit, and shared purpose. And lastly, a thriving, profitable business - where smart people do their best work. Each definition shares a common thread: our unique culture. It's our pride and joy. And our competitive advantage. A feel for our culture: To revolutionise the savings market, we need to be at our best. But high performance takes more than talent - it takes a culture of kindness, respect, and growth. That's why we're building a diverse, inclusive community, where your voice is heard and valued. Where, with close support and room to develop, you can surpass even your own expectations. And be rewarded for it. We may not change the world, but we can change the world of financial technology. And all...

What is Flagstone? Flagstone is many things. An online savings platform, reinventing how individuals, businesses, and charities manage, protect, and grow their cash. A diverse group of people, bound by a collaborative spirit, and shared purpose. And lastly, a thriving, profitable business – where smart people do their best work. Each definition shares a common thread: our unique culture. It’s our pride and joy. And our competitive advantage. A feel for our culture: To revolutionise the savings market, we need to be at our best. But high performance takes more than talent – it takes a culture of kindness, respect, and growth. That’s why we’re building a diverse, inclusive community, where your voice is heard and valued. Where, with close support and room to develop, you can surpass even your own expectations. And be rewarded for it. We may not change the world, but we can change the world of financial technology. And all it...

Job Title: MS AD / Entra ID Engineer - Microsoft Authenticator (MFA) Role type: Contractor (6 months) Department: Authentication/MFA & Directory Services - CIO Location: London (Hybrid) Company overview Nomura is a financial services group with an integrated global network. By connecting markets East & West, we service the needs of individuals, institutions, corporates and governments through our four business divisions: Wealth Management, Investment Management, Wholesale (Global Markets and Investment Banking) and Banking. Driven by the insights of some 28,000 people worldwide, we put our clients at the center of everything we do, delivering unparalleled access to, from and within Asia. For further information about Nomura, visit www.nomura.com Overview: We are seeking an experienced Microsoft Active Directory / Entra ID Engineer to join Authentication and Directory Services Engineering function. The position focuses on designing and delivering...

Job Title: MS AD / Entra ID Engineer - Active Directory Role type: Contractor (6 months) Department: Authentication/MFA & Directory Services - CIO Location: London (Hybrid) Company overview Nomura is a financial services group with an integrated global network. By connecting markets East & West, we service the needs of individuals, institutions, corporates and governments through our four business divisions: Wealth Management, Investment Management, Wholesale (Global Markets and Investment Banking) and Banking. Driven by the insights of some 28,000 people worldwide, we put our clients at the center of everything we do, delivering unparalleled access to, from and within Asia. For further information about Nomura, visit www.nomura.com Overview: We are seeking an experienced Microsoft Active Directory / Entra ID Engineer to join Authentication and Directory Services Engineering function. The position focuses on designing and delivering enterprise-scale...

We are currently looking for an experience Principal Engineer to join us on a contract basis. This is a hybrid position and will require 3 days per week on client site in Central London. Requirements Role responsibilities: Define and drive technical strategy, architecture, and engineering standards across the Personalisation domain Design and deliver scalable systems supporting personalisation, search, recommendations, and ML-powered features Partner closely with Product, Data Science, and Design to deliver customer-centric solutions Lead and influence technical decision-making across multiple teams and platforms Mentor and support senior engineers, helping to raise the overall engineering capability Improve engineering quality, reliability, and productivity through best practices, tooling, and platform enhancemen Who You Are An experienced technical leader with a strong background in Java/Python and large-scale production systems...

Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for Senior Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires a solid understanding of...

Job Title: AI Roku Developer Location: London Company: BritBox International Reporting to: SVP of Technology and Content Delivery Contract Type: Day rate Contractor, 3-month About Us BBC Studios’ Direct-to-Consumer (DTC) business brings premium content directly to North American audiences through two distinctive streaming brands: BritBox and BBC Select. BritBox , the ultimate streaming destination for British TV. We offer an unparalleled collection of thoughtfully curated entertainment—cleverly crafted and full of the charm, wit, and heart that define British storytelling. Born from the BBC, our mission is to bring authentic British stories to our audiences. Launched in 2017, we are a small but mighty streamer that punches above our weight—available on every major platform and even featured among the bright lights of Times Square—and we’re just getting started. BBC Select is a documentary streaming service that has been...

What is Flagstone? Flagstone is many things. An online savings platform, reinventing how individuals, businesses, and charities manage, protect, and grow their cash. A diverse group of people, bound by a collaborative spirit, and shared purpose. And lastly, a thriving, profitable business – where smart people do their best work. Each definition shares a common thread: our unique culture. It’s our pride and joy. And our competitive advantage. A feel for our culture: To revolutionise the savings market, we need to be at our best. But high performance takes more than talent – it takes a culture of kindness, respect, and growth. That’s why we’re building a diverse, inclusive community, where your voice is heard and valued. Where, with close support and room to develop, you can surpass even your own expectations. And be rewarded for it. We may not change the world, but we can change the world of financial technology. And all it...

Principal Salesforce Engineer London (Hybrid | 3 Days Onsite) Permanent | Fixed-Term Contract | Inside IR35 Contract   Build the Next Generation of Salesforce Solutions   We're seeking a Principal Salesforce Engineer to lead the design and delivery of scalable, secure, and high-performing Salesforce solutions within a leading Asset Management environment. Working closely with architects, product teams, and business stakeholders, you'll drive engineering excellence, shape platform strategy, and deliver innovative solutions leveraging modern Salesforce capabilities.   What You'll Bring: Deep expertise in Apex, Lightning Web Components (LWC), Salesforce Flows, and platform architecture. Strong experience delivering enterprise integrations using APIs, MuleSoft, and event-driven architectures. Proven track record driving engineering best practices, DevOps, CI/CD, automated testing, and code quality. Ability to translate...

We are currently looking for an experience Principal Engineer to join us on a contract basis. This is a hybrid position and will require 3 days per week on client site in Central London. Requirements Role responsibilities:   Define and drive technical strategy, architecture, and engineering standards across the Personalisation domain Design and deliver scalable systems supporting personalisation, search, recommendations, and ML-powered features Partner closely with Product, Data Science, and Design to deliver customer-centric solutions Lead and influence technical decision-making across multiple teams and platforms Mentor and support senior engineers, helping to raise the overall engineering capability Improve engineering quality, reliability, and productivity through best practices, tooling, and platform enhancemen   Who you are:   An experienced technical leader with a strong background in Java/Python...

The Synergy Programme is a large-scale transformation programme consisting of four Government departments, MOJ (Ministry of Justice), DWP (Department for Work and Pensions), DEFRA (Department for Environment, Food and Rural Affairs) and HO (Home Office). They will come together to replace their current back-office systems and introduce new ways of working for 220,000 civil servants combined. High-quality, accurate data is fundamental to ensuring a successful transition and enabling effective business processes, reporting and operations within the new ERP platform. The Data Engineer will play a critical role in supporting the MoJ contribution to the Synergy Programme by providing the technical capability required to extract, transform, manage and prepare source data for analysis. This role directly supports key programme priorities, including data quality improvement and data migration readiness.   As a  Senior Data Engineer, your main responsibilities will...

Role description Salesforce Technical Lead London (Hybrid | 3 Days Onsite) Permanent | Fixed-Term Contract | Inside IR35 Contract   Shape the Future of Salesforce within the Asset Management Domain   We are looking for an experienced Salesforce Technical Lead to drive the design, delivery, and evolution of a strategic Salesforce platform within a leading Asset Management environment. This role combines hands-on engineering, technical leadership, and stakeholder engagement, offering the opportunity to lead enterprise-scale Salesforce initiatives while leveraging emerging capabilities such as Data Cloud, AI, and Agentforce.   What You'll Bring: Proven experience leading Salesforce development teams and delivering complex Salesforce programmes. Deep expertise in Apex, Lightning Web Components (LWC), Salesforce Flows, Visualforce, and API integrations . Strong understanding of Salesforce architecture, security,...

Senior Full Stack Developer - C#/Azure/Kafka Internal Title: Software Engineering Senior Consultant Location: London, UK (Hybrid - typically 1-2 days per week in office/client site) Contract: 6-month rolling contract Rate: £600-650 per day, Outside IR35 Start: ASAP About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering capability focuses on modern application development, cloud-native architecture, event-driven systems, and improving delivery outcomes through better engineering practices. We work across complex, high-impact environments in both the public and private sector, delivering solutions where quality, scalability, reliability, and security are critical. About the Role We’re looking for a Senior Full...