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80 Permanent API jobs in West Fields, South West London + 20 miles
184 exact matches jobs are outside your preferred location
Role Summary - LSEGs ambition is to be one of the worlds greatest companies and best places to work. To achieve this, we are on a journey of building a world class engineering function supporting our Customer Data Master (CDM) Platform team. The team has embarked on a journey to provide internal teams and platform teams with a fully managed customer data master platform. The role will take part in the definition of the CDM strategy and execution of the CDM engineering strategy and deliver the technology capability, in line with the Corporate Engineering (CE) strategy which includes evolving our current master data capability. What youll be doing * Lead a senior engineering team (5 growing to ~10 ) to design, build and run the Customer MDM platform as a durable product with clear ownership. * Own platform engineering: architecture, coding standards, quality, observabil
Role Summary - LSEGs ambition is to be one of the worlds greatest companies and best places to work. To achieve this, we are on a journey of building a world class engineering function supporting our Customer Data Master (CDM) Platform team. The team has embarked on a journey to provide internal teams and platform teams with a fully managed customer data master platform. The role will take part in the definition of the CDM strategy and execution of the CDM engineering strategy and deliver the technology capability, in line with the Corporate Engineering (CE) strategy which includes evolving our current master data capability. What youll be doing * Lead a senior engineering team (5 growing to ~10 ) to design, build and run the Customer MDM platform as a durable product with clear ownership. * Own platform engineering: architecture, coding standards, quality, observabil
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Principal Software Engineer - Frontend
Principal Software Engineer - Frontend
Fruition Group
London
£95000 - £120000 per annum + Equity + Benefits
London (Remote First - Occasional travel) Salary: £95,000 - £120,000 + equity + benefits - An established, global technology business within the hospitality-tech industry is seeking a talented Principal Frontend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. * Set the technical vision and architectural direction for frontend systems, ensuring performance, scalability, and maintainability across complex products. * Lead design and delivery of modern, component-based web applications built with TypeScript, React, and Redux, integrating seamlessly with cloud-based APIs and data pipelines. * Collaborate with engineering, design, and product leadership to define long-term frontend st
London (Remote First - Occasional travel) Salary: £95,000 - £120,000 + equity + benefits - An established, global technology business within the hospitality-tech industry is seeking a talented Principal Frontend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. * Set the technical vision and architectural direction for frontend systems, ensuring performance, scalability, and maintainability across complex products. * Lead design and delivery of modern, component-based web applications built with TypeScript, React, and Redux, integrating seamlessly with cloud-based APIs and data pipelines. * Collaborate with engineering, design, and product leadership to define long-term frontend st
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6 Month Contract - Newbury/Reading (Hybrid) £500-£550/day (Outside IR35) TSOM (Telecom Service & Operations Management) project experience with ITSM i.e other modules (TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps). A chance to work with a global IT Consultancy on a ServiceNow project for an external client. Hybrid working - working 2-3 days/week remotely from home (WFH) + 2-3 days/week from the office in either Newbury or Reading (depending on your preference). Paying up to £550/day (Outside IR35). Start ASAP ideally in October/November 2025. * Experienced needed TSOM (Telecom Service & Operations Management) implementation project toLead the design and implementation of ServiceNow modules, including ITSM, ITOM, ITAM, HRSD, CSM, GRC, SecOps and custom applications. * Strong experience ServiceNow ITSM and other modules i.e (TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps).
6 Month Contract - Newbury/Reading (Hybrid) £500-£550/day (Outside IR35) TSOM (Telecom Service & Operations Management) project experience with ITSM i.e other modules (TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps). A chance to work with a global IT Consultancy on a ServiceNow project for an external client. Hybrid working - working 2-3 days/week remotely from home (WFH) + 2-3 days/week from the office in either Newbury or Reading (depending on your preference). Paying up to £550/day (Outside IR35). Start ASAP ideally in October/November 2025. * Experienced needed TSOM (Telecom Service & Operations Management) implementation project toLead the design and implementation of ServiceNow modules, including ITSM, ITOM, ITAM, HRSD, CSM, GRC, SecOps and custom applications. * Strong experience ServiceNow ITSM and other modules i.e (TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps).
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6 Month Contract - Newbury/Reading (Hybrid) £500-£550/day (Outside IR35) TSOM (Telecom Service & Operations Management) project experience with ITSM i.e other modules (TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps). A chance to work with a global IT Consultancy on a ServiceNow project for an external client. Hybrid working - working 2-3 days/week remotely from home (WFH) + 2-3 days/week from the office in either Newbury or Reading (depending on your preference). Paying up to £550/day (Outside IR35). Start ASAP ideally in October/November 2025. * Experienced needed TSOM (Telecom Service & Operations Management) implementation project toLead the design and implementation of ServiceNow modules, including ITSM, ITOM, ITAM, HRSD, CSM, GRC, SecOps and custom applications. * Strong experience ServiceNow ITSM and other modules i.e (TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps).
6 Month Contract - Newbury/Reading (Hybrid) £500-£550/day (Outside IR35) TSOM (Telecom Service & Operations Management) project experience with ITSM i.e other modules (TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps). A chance to work with a global IT Consultancy on a ServiceNow project for an external client. Hybrid working - working 2-3 days/week remotely from home (WFH) + 2-3 days/week from the office in either Newbury or Reading (depending on your preference). Paying up to £550/day (Outside IR35). Start ASAP ideally in October/November 2025. * Experienced needed TSOM (Telecom Service & Operations Management) implementation project toLead the design and implementation of ServiceNow modules, including ITSM, ITOM, ITAM, HRSD, CSM, GRC, SecOps and custom applications. * Strong experience ServiceNow ITSM and other modules i.e (TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps).
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Mid-Level Mobile Developer (iOS) Brighton, 4 days per week in office, £50,000-£70,000 DOE - Mid-Level iOS Developer required by a Brighton based Software House. This is a new role which would be perfect for someone looking to build polished, high-performing mobile apps while working in a collaborative, creative environment. * Designing, building, and maintaining iOS applications in Swift * Creating clean, modern UIs with SwiftUI * Applying SOLID principles to write scalable, maintainable code * Working with RESTful APIs to integrate app functionality * Ensuring apps perform smoothly through memory management, multi-threading, and performance optimisation * Collaborating with cross-functional teams on exciting projects * Nice to have: experience with Android development (Kotlin) Our client offers a vibrant office culture and you will have the opportunity to work on div
Mid-Level Mobile Developer (iOS) Brighton, 4 days per week in office, £50,000-£70,000 DOE - Mid-Level iOS Developer required by a Brighton based Software House. This is a new role which would be perfect for someone looking to build polished, high-performing mobile apps while working in a collaborative, creative environment. * Designing, building, and maintaining iOS applications in Swift * Creating clean, modern UIs with SwiftUI * Applying SOLID principles to write scalable, maintainable code * Working with RESTful APIs to integrate app functionality * Ensuring apps perform smoothly through memory management, multi-threading, and performance optimisation * Collaborating with cross-functional teams on exciting projects * Nice to have: experience with Android development (Kotlin) Our client offers a vibrant office culture and you will have the opportunity to work on div
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Location: UK - Rate: £400.00 Outside IR35 - We are seeking a dedicated and technically proficient AI Prompt Engineer to spearhead the development and optimisation of prompts for advanced platforms such as DealCloud, Filament Sifter, and Capsa. The ideal candidate will possess hands-on experience with generative AI technologies, leveraging their skills to significantly enhance user interactions and outcomes. This role involves close collaboration with leading AI vendors to ensure optimal prompt performance and foster innovation. In addition to prompt engineering, the successful candidate will play a vital role in supporting chatbot development and integrating AI-driven insights into enterprise workflows and interactive dashboards, thereby driving efficiency and improving decision-making processes across the organisation.
Location: UK - Rate: £400.00 Outside IR35 - We are seeking a dedicated and technically proficient AI Prompt Engineer to spearhead the development and optimisation of prompts for advanced platforms such as DealCloud, Filament Sifter, and Capsa. The ideal candidate will possess hands-on experience with generative AI technologies, leveraging their skills to significantly enhance user interactions and outcomes. This role involves close collaboration with leading AI vendors to ensure optimal prompt performance and foster innovation. In addition to prompt engineering, the successful candidate will play a vital role in supporting chatbot development and integrating AI-driven insights into enterprise workflows and interactive dashboards, thereby driving efficiency and improving decision-making processes across the organisation.
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Opportunity for a AI Engineer Developer to work for an established FinTech company * Salary up to £75k depending on experience * Hybrid working out of Sevenoaks HQ * Tech stack - LLMs, Langchain, OpenAI, n8n, Flowable - We're working with a well-established, technology-driven FinTech company that's redefining how automation and AI power financial services. Combining innovation with stability, they've built a reputation as one of the UK's fastest-growing and most forward-thinking finance providers, now they're looking to strengthen their AI and automation capability. * Build intelligent workflows using n8n, Microsoft Power Automate, Flowable, and similar tools. * Design and implement agentic AI solutions, integrating LLMs and frameworks such as LangChain, AutoGen, and RAG pipelines with platforms like OpenAI.
Opportunity for a AI Engineer Developer to work for an established FinTech company * Salary up to £75k depending on experience * Hybrid working out of Sevenoaks HQ * Tech stack - LLMs, Langchain, OpenAI, n8n, Flowable - We're working with a well-established, technology-driven FinTech company that's redefining how automation and AI power financial services. Combining innovation with stability, they've built a reputation as one of the UK's fastest-growing and most forward-thinking finance providers, now they're looking to strengthen their AI and automation capability. * Build intelligent workflows using n8n, Microsoft Power Automate, Flowable, and similar tools. * Design and implement agentic AI solutions, integrating LLMs and frameworks such as LangChain, AutoGen, and RAG pipelines with platforms like OpenAI.
We are looking for an Engineering Manager (f/m/d) to lead a high-performing, remote-first API development team based in Europe who are driving Contentful's REST and GraphQL APIs that enable customers to manage and deliver content at scale. We aim to help customers accelerate innovation, reduce operational complexity, and unlock new growth opportunities through a secure, performant, and extensible API ecosystem. * Lead and grow a globally-distributed API development team, ensuring a culture of high performance, collaboration, and continuous improvement. * Experience with API-first platforms.
We are looking for an Engineering Manager (f/m/d) to lead a high-performing, remote-first API development team based in Europe who are driving Contentful's REST and GraphQL APIs that enable customers to manage and deliver content at scale. We aim to help customers accelerate innovation, reduce operational complexity, and unlock new growth opportunities through a secure, performant, and extensible API ecosystem. * Lead and grow a globally-distributed API development team, ensuring a culture of high performance, collaboration, and continuous improvement. * Experience with API-first platforms.
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Experience with Java and API testing using Postman.
Experience with Java and API testing using Postman.
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RESTful API development
RESTful API development
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Knowledge of the following tools Cucumber Godog or other BDD tools Kubernetes Docker Rest Assured Rest or other REST API testing tools Wiremock Mountebank or other HTTP stubbing tools
Knowledge of the following tools Cucumber Godog or other BDD tools Kubernetes Docker Rest Assured Rest or other REST API testing tools Wiremock Mountebank or other HTTP stubbing tools
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Experience with some of the technologies we make use of: Groovy, Python, AWS Serverless (API Gateway, Lambdas), XML, JSON, Open API, virtualisation in general and especially Docker and its eco system, Git, NoSQL products and concepts (Dynamo, column family, etc.)
Experience with some of the technologies we make use of: Groovy, Python, AWS Serverless (API Gateway, Lambdas), XML, JSON, Open API, virtualisation in general and especially Docker and its eco system, Git, NoSQL products and concepts (Dynamo, column family, etc.)
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Build, fine-tune, and evaluate LLM-based Q&A models using frameworks like AWS Bedrock, Langchain, HuggingFace Transformers or OpenAI API.
Build, fine-tune, and evaluate LLM-based Q&A models using frameworks like AWS Bedrock, Langchain, HuggingFace Transformers or OpenAI API.
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Apply DevOps concepts and use Azure ADB2C and cloud services (API management, App Service, Azure configurations).
Apply DevOps concepts and use Azure ADB2C and cloud services (API management, App Service, Azure configurations).
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Build, fine-tune, and evaluate LLM-based Q&A models using frameworks like AWS Bedrock, Langchain, HuggingFace Transformers or OpenAI API.
Build, fine-tune, and evaluate LLM-based Q&A models using frameworks like AWS Bedrock, Langchain, HuggingFace Transformers or OpenAI API.
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4+ years automation testing skills (Selenium, Katalon, GT-UI, GT-API). * Web services testing / API testing skills is a plus.
4+ years automation testing skills (Selenium, Katalon, GT-UI, GT-API). * Web services testing / API testing skills is a plus.
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Building and maintaining API-driven Java microservices hosted on public cloud infrastructure * Deep understanding of microservices architecture, cloud-native applications, and API development
Building and maintaining API-driven Java microservices hosted on public cloud infrastructure * Deep understanding of microservices architecture, cloud-native applications, and API development
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RESTful API design and development
RESTful API design and development
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Strong application security background (OWASP Top 10, API security).
Strong application security background (OWASP Top 10, API security).
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Data exchange and processing skills (e.g. ETL, ESB, API...)
Data exchange and processing skills (e.g. ETL, ESB, API...)
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Solid experience with AWS services particularly Lambda, S3, API Gateway, Chime, and Connect.
Solid experience with AWS services particularly Lambda, S3, API Gateway, Chime, and Connect.
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Understanding of the product management lifecycle, especially API-based products and solutions.
Understanding of the product management lifecycle, especially API-based products and solutions.
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Large Language API's (from 2021) * Assisting with the maintenance and iteration of a FastAPI-based web API hosted on AWS.
Large Language API's (from 2021) * Assisting with the maintenance and iteration of a FastAPI-based web API hosted on AWS.
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Understanding of cloud-based solutions and communication protocols (SOAP, API, HTTPS, SFTP, etc.).
Understanding of cloud-based solutions and communication protocols (SOAP, API, HTTPS, SFTP, etc.).
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As the leader of the Shipping Platform product, you will guide a team of product managers in delivering cutting-edge solutions across both mobile, web and API platforms at a global scale, ensuring alignment with eBays strategic goals around driving GMV and revenues.
As the leader of the Shipping Platform product, you will guide a team of product managers in delivering cutting-edge solutions across both mobile, web and API platforms at a global scale, ensuring alignment with eBays strategic goals around driving GMV and revenues.
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Related Jobs
Locations
- The City, City (EC3)
- Southwark
- The City, City (EC4)
- West Fields
- The City, City (EC2)
- Canary Wharf
- Euston
- Frimley
- Holborn
- Ireland
- City of London
- Central London
- South East London
- West End
- Cambridge
- South West London
- Reading
- Newbury
- Milton Keynes
- Abingdon
- London
- Berkshire
- Cambridgeshire
- Surrey
- Oxfordshire
- Buckinghamshire
- Hampshire
- Hertfordshire
- Bedfordshire
- East Sussex
- South East
- East Anglia