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73 Contract API jobs in South East + 20 miles
LSEG is seeking a Senior Vulnerability Management Engineer to join our internal offensive security team with focus on driving closure of penetration testing findings. This role bridges offensive security and engineering by translating penetration test results into clear, actionable remediation guidance and partnering with application and platform teams to implement secure fixes. The successful candidate has a strong penetration testing or application security background, hands on remediation experience, and the ability to coordinate multiple collaborators to reduce risk at scale. This is a highly technical, delivery focused role with responsibility for both individual findings and systemic improvements. Key Responsibilities * Analyze and review penetration test reports to understand technical impact, exploitability, and business risk.
LSEG is seeking a Senior Vulnerability Management Engineer to join our internal offensive security team with focus on driving closure of penetration testing findings. This role bridges offensive security and engineering by translating penetration test results into clear, actionable remediation guidance and partnering with application and platform teams to implement secure fixes. The successful candidate has a strong penetration testing or application security background, hands on remediation experience, and the ability to coordinate multiple collaborators to reduce risk at scale. This is a highly technical, delivery focused role with responsibility for both individual findings and systemic improvements. Key Responsibilities * Analyze and review penetration test reports to understand technical impact, exploitability, and business risk.
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Im working with a global, purpose-driven technology group thats hiring a Solutions Engineer to support large-scale digital transformation across a diverse portfolio of innovative businesses. This Solutions Engineer role sits within a central Digital Solutions team and offers the chance to work with cloud, AI and emerging technologies to build scalable, real-world solutions used across multiple industries. As a Solutions Engineer, youll be hands-on designing and prototyping modern platforms, influencing engineering best practice, and creating reusable technical assets. Its a great opportunity for engineers who want exposure to cloud services, Generative AI, VR/AR and edge technologies in a highly collaborative environment. * Designing and developing cloud-native solutions and proof-of-concepts * Working with modern cloud services, APIs and microservices
Im working with a global, purpose-driven technology group thats hiring a Solutions Engineer to support large-scale digital transformation across a diverse portfolio of innovative businesses. This Solutions Engineer role sits within a central Digital Solutions team and offers the chance to work with cloud, AI and emerging technologies to build scalable, real-world solutions used across multiple industries. As a Solutions Engineer, youll be hands-on designing and prototyping modern platforms, influencing engineering best practice, and creating reusable technical assets. Its a great opportunity for engineers who want exposure to cloud services, Generative AI, VR/AR and edge technologies in a highly collaborative environment. * Designing and developing cloud-native solutions and proof-of-concepts * Working with modern cloud services, APIs and microservices
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FTSE Russell | LSEG Technology - FTSE Russell is a leading global provider of financial services, specializing in the creation and management of indexes, data, and analytic solutions. A subsidiary of the London Stock Exchange Group (LSEG), FTSE Russell supports investors worldwide in making informed decisions across asset classes, investment strategies, and market segments. Its products are trusted by institutional and retail investors, asset managers, and pension funds to benchmark performance, build investment portfolios, and manage risk. With a reputation for innovation, transparency, and robust governance, FTSE Russell plays a critical role in shaping global financial markets. FTSE Russell is seeking a senior software engineer to be part a dynamic team of software engineers building all distribution capabilities of our index products to the financial community wor
FTSE Russell | LSEG Technology - FTSE Russell is a leading global provider of financial services, specializing in the creation and management of indexes, data, and analytic solutions. A subsidiary of the London Stock Exchange Group (LSEG), FTSE Russell supports investors worldwide in making informed decisions across asset classes, investment strategies, and market segments. Its products are trusted by institutional and retail investors, asset managers, and pension funds to benchmark performance, build investment portfolios, and manage risk. With a reputation for innovation, transparency, and robust governance, FTSE Russell plays a critical role in shaping global financial markets. FTSE Russell is seeking a senior software engineer to be part a dynamic team of software engineers building all distribution capabilities of our index products to the financial community wor
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This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds. Working alongside some of the best engineers in the industry, youll contribute to code and systems that go into production and are used by millions every day. In Production Engineering at Meta, we navigate uncharted waters daily solving problems at a scale few others face. * Own back-end services like our container fleet management systems, front-end services like Chat and Newsfeed, infrastructure components like our Memcache infrastructure, and everything in between
This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds. Working alongside some of the best engineers in the industry, youll contribute to code and systems that go into production and are used by millions every day. In Production Engineering at Meta, we navigate uncharted waters daily solving problems at a scale few others face. * Own back-end services like our container fleet management systems, front-end services like Chat and Newsfeed, infrastructure components like our Memcache infrastructure, and everything in between
Deep knowledge of REST API design, scalability, fault tolerance, and performance optimization.
Deep knowledge of REST API design, scalability, fault tolerance, and performance optimization.
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Salesforce Marketing Cloud Engineer
Salesforce Marketing Cloud Engineer
Stackstudio Digital Ltd.
Paddington, West London (W2)
From £450 to £500 per day
Strong understanding and experience in SFMC API development.
Strong understanding and experience in SFMC API development.
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Fire Service Site Engineer
Fire Service Site Engineer
Chubb Fire & Security Limited
Brighton (BN1)
From £40,000 to £45,000 per annum
As part of the global API Group, we join a family of organisations where leadership, and leadership development is our most powerful strategic advantage and the best way to invest in our people.
As part of the global API Group, we join a family of organisations where leadership, and leadership development is our most powerful strategic advantage and the best way to invest in our people.
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You consider things like API documentation, SDK functionality, and developer onboarding and can speak the language of a developer.
You consider things like API documentation, SDK functionality, and developer onboarding and can speak the language of a developer.
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Based in Northamptonshire, our Rushden site is a centre of excellence for Radiolabelled Sciences incorporating both Metabolism (which includes Clinical Metabolism, Pre-clinical ADME, In vitro and DDI services, Large Molecule Metabolism, Environmental Fate, Plant Metabolism and Metabolite Identification) in addition to Chemistry (which includes API and IMP manufacture).
Based in Northamptonshire, our Rushden site is a centre of excellence for Radiolabelled Sciences incorporating both Metabolism (which includes Clinical Metabolism, Pre-clinical ADME, In vitro and DDI services, Large Molecule Metabolism, Environmental Fate, Plant Metabolism and Metabolite Identification) in addition to Chemistry (which includes API and IMP manufacture).
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Strong systems and distributed design skills: concurrency, performance, resiliency, API design, and fault isolation.
Strong systems and distributed design skills: concurrency, performance, resiliency, API design, and fault isolation.
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Experience building Rest API with authorization logic
Experience building Rest API with authorization logic
Optimise page load speed, rendering performance, and API response times. * Familiarity with RESTful API design and backend performance considerations.
Optimise page load speed, rendering performance, and API response times. * Familiarity with RESTful API design and backend performance considerations.
Who are we? Look at the latest headlines and you will see something Ki insures. Think space shuttles, world tours, wind farms, and even footballers legs. Kis mission is simple. Digitally disrupt and revolutionise a 335-year-old market. Working with Google and UCL, Ki has created a platform that uses algorithms, machine learning and large language models to give insurance brokers quotes in seconds, rather than days. Ki is proudly the biggest global algorithmic insurance carrier. It is the fastest growing syndicate in the Lloyd's of London market, and the first ever to make $100m in profit in 3 years. Kis teams have varied backgrounds and work together in an agile, cross-functional way to build the very best experience for its customers. Ki has big ambitions but needs more excellent minds to challenge the status-quo and help it reach new horizons. Where you come in?
Who are we? Look at the latest headlines and you will see something Ki insures. Think space shuttles, world tours, wind farms, and even footballers legs. Kis mission is simple. Digitally disrupt and revolutionise a 335-year-old market. Working with Google and UCL, Ki has created a platform that uses algorithms, machine learning and large language models to give insurance brokers quotes in seconds, rather than days. Ki is proudly the biggest global algorithmic insurance carrier. It is the fastest growing syndicate in the Lloyd's of London market, and the first ever to make $100m in profit in 3 years. Kis teams have varied backgrounds and work together in an agile, cross-functional way to build the very best experience for its customers. Ki has big ambitions but needs more excellent minds to challenge the status-quo and help it reach new horizons. Where you come in?
Head of Business Operations & Business Support (Hospitality Distribution Tech) with Chinese
Head of Business Operations & Business Support (Hospitality Distribution Tech) with Chinese
Shiji Group
London
Competitive
Technical experience in API integrations, connectivity.
Technical experience in API integrations, connectivity.
Appium for mobile automation strong communication skills collaboration with development and DevOps teams test automation strategy execution API testing proficiency with Postman and experience managing CICD pipelines under deadlinedriven environments - Good to Have Skills : API/Microservices RestAssured Testing, Mobility Testing (iOS, Android, Streaming)
Appium for mobile automation strong communication skills collaboration with development and DevOps teams test automation strategy execution API testing proficiency with Postman and experience managing CICD pipelines under deadlinedriven environments - Good to Have Skills : API/Microservices RestAssured Testing, Mobility Testing (iOS, Android, Streaming)
You will be able to understand and reason about a complex distributed system with a comprehensive data processing API, the ability to process a wide range of complex input data types, and the capability to query that data with a SQL-like query engine.
You will be able to understand and reason about a complex distributed system with a comprehensive data processing API, the ability to process a wide range of complex input data types, and the capability to query that data with a SQL-like query engine.
Youll design, implement, and maintain integration solutions that power our business operations, leveraging your expertise in both traditional EDI standards and modern API integrations. * Collaborate with internal teams and external partners to gather requirements and ensure compliance with API standards * Monitor and troubleshoot EDI/API transactions, resolving errors to ensure smooth information flow * Create and maintain documentation for EDI processes, API specifications, and trading partner profiles * Provide training and support to internal users on EDI/API processes and best practices * Experience with API-based integrations and EDI platforms * Solid understanding of HTTP, authentication (OAuth2, JWT), and API lifecycle management
Youll design, implement, and maintain integration solutions that power our business operations, leveraging your expertise in both traditional EDI standards and modern API integrations. * Collaborate with internal teams and external partners to gather requirements and ensure compliance with API standards * Monitor and troubleshoot EDI/API transactions, resolving errors to ensure smooth information flow * Create and maintain documentation for EDI processes, API specifications, and trading partner profiles * Provide training and support to internal users on EDI/API processes and best practices * Experience with API-based integrations and EDI platforms * Solid understanding of HTTP, authentication (OAuth2, JWT), and API lifecycle management
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Youll design, implement, and maintain integration solutions that power our business operations, leveraging your expertise in both traditional EDI standards and modern API integrations. * Collaborate with internal teams and external partners to gather requirements and ensure compliance with API standards * Monitor and troubleshoot EDI/API transactions, resolving errors to ensure smooth information flow * Create and maintain documentation for EDI processes, API specifications, and trading partner profiles * Provide training and support to internal users on EDI/API processes and best practices * Experience with API-based integrations and EDI platforms * Solid understanding of HTTP, authentication (OAuth2, JWT), and API lifecycle management
Youll design, implement, and maintain integration solutions that power our business operations, leveraging your expertise in both traditional EDI standards and modern API integrations. * Collaborate with internal teams and external partners to gather requirements and ensure compliance with API standards * Monitor and troubleshoot EDI/API transactions, resolving errors to ensure smooth information flow * Create and maintain documentation for EDI processes, API specifications, and trading partner profiles * Provide training and support to internal users on EDI/API processes and best practices * Experience with API-based integrations and EDI platforms * Solid understanding of HTTP, authentication (OAuth2, JWT), and API lifecycle management
Knowledge of Protocol Buffers schema evolution and API versioning strategies
Knowledge of Protocol Buffers schema evolution and API versioning strategies
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
Technical working knowledge of API integrations (REST & SOAP).
Technical working knowledge of API integrations (REST & SOAP).
Senior Machine Learning Operations Engineer
Senior Machine Learning Operations Engineer
FIRST CENTRAL SERVICES (UK) LIMITED
Haywards Heath, West Sussex
£65,000 - £75,000 a year
Understanding of microservices architecture, RESTful API design, development, and integration
Understanding of microservices architecture, RESTful API design, development, and integration
The Developer Platform team supports 75B+ API calls and a growing marketplace with 300+ partner applications.
The Developer Platform team supports 75B+ API calls and a growing marketplace with 300+ partner applications.
Facilitate Onboarding: Youll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
Facilitate Onboarding: Youll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
May participate in standards development committees or task groups such as API
May participate in standards development committees or task groups such as API