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133 Contract API jobs in City of London + 20 miles
691 exact matches jobs are outside your preferred location
Proven track record building and scaling data platforms and API-first products, with the ability to drive innovation and adoption.
Proven track record building and scaling data platforms and API-first products, with the ability to drive innovation and adoption.
Translate datasets and domain requirements into a data model, SQL schemas, and API-driven back-end services. Applicants should have a strong knowledge of modern back-end development using C# and .NET (Core or later), including API design and modular service architecture along with analytical and problem solving skills and effective communication.
Translate datasets and domain requirements into a data model, SQL schemas, and API-driven back-end services. Applicants should have a strong knowledge of modern back-end development using C# and .NET (Core or later), including API design and modular service architecture along with analytical and problem solving skills and effective communication.
Software Engineer - Python, Cloud Architecture, Databricks (or similar tech stack) - hybrid
Software Engineer - Python, Cloud Architecture, Databricks (or similar tech stack) - hybrid
FactSet Europe Ltd
London
Competitive
Proficient in Python/Typescript/Nodejs , with strong skills in API development .
Proficient in Python/Typescript/Nodejs , with strong skills in API development .
Experience with Iron Python and the API-Rest Framework.
Experience with Iron Python and the API-Rest Framework.
Proficient in headless CMS integrations (Kontent.ai, Contentful) and API-driven development
Proficient in headless CMS integrations (Kontent.ai, Contentful) and API-driven development
Strong experience in software engineering with proficiency in a language such as Python for API development, Data engineering and automation tasks * Experience in API development using tools such as FastAPI or Flask, enabling data access and integration across systems
Strong experience in software engineering with proficiency in a language such as Python for API development, Data engineering and automation tasks * Experience in API development using tools such as FastAPI or Flask, enabling data access and integration across systems
Currently, our microservices communicate via REST API calls, fostering seamless integration between different services.
Currently, our microservices communicate via REST API calls, fostering seamless integration between different services.
Experience in consuming a RESTful API.
Experience in consuming a RESTful API.
Support reporting automation for email, push, and newsletter engagement (e.g., SailThru API integrations, open/click/bounce analysis).
Support reporting automation for email, push, and newsletter engagement (e.g., SailThru API integrations, open/click/bounce analysis).
Networking and Security: Manage Azure networking components including Firewalls, Front Door, Application Gateway, and API Management, ensuring resilience, performance, and compliance. * Solid understanding of Azure Firewall, Front Door, Application Gateway, API Management, and associated services
Networking and Security: Manage Azure networking components including Firewalls, Front Door, Application Gateway, and API Management, ensuring resilience, performance, and compliance. * Solid understanding of Azure Firewall, Front Door, Application Gateway, API Management, and associated services
Prior experience with Docker and API development
Prior experience with Docker and API development
Senior/ Staff Software Engineer, Core Banking (Relocate to Singapore)
Senior/ Staff Software Engineer, Core Banking (Relocate to Singapore)
Airwallex (UK) Limited
London
Competitive
Experience in API design best practices
Experience in API design best practices
Powered by our proprietary Play&Plug technology platform , we offer API-based solutions and manage fully cloud-native insurance programs.
Powered by our proprietary Play&Plug technology platform , we offer API-based solutions and manage fully cloud-native insurance programs.
You can design a RESTful API and list all the pros and cons of your design * You have an API-first product mindset: you care about customer outcomes and you like to listen to their use-cases before diving into code
You can design a RESTful API and list all the pros and cons of your design * You have an API-first product mindset: you care about customer outcomes and you like to listen to their use-cases before diving into code
Expertise in API testing using Postman
Expertise in API testing using Postman
We do this by providing products and services which allow our clients to efficiently collect, reconcile and disburse funds instantly via a range of payment schemes, accounts, and card products, fully controllable via API. *Familiarity withISO20022 messaging formats and flow, familiarity with API-based payment integration is a plus.
We do this by providing products and services which allow our clients to efficiently collect, reconcile and disburse funds instantly via a range of payment schemes, accounts, and card products, fully controllable via API. *Familiarity withISO20022 messaging formats and flow, familiarity with API-based payment integration is a plus.
As an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure.
As an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure.
Software Engineer II
Software Engineer II
LEXISNEXIS RISK SOLUTIONS UK LIMITED T/a LexisNexis Risk Solutions Group
London
Competitive
Experience developing web applications or services (e.g. Web API, ASP.NET MVC, etc.).
Experience developing web applications or services (e.g. Web API, ASP.NET MVC, etc.).
Strong understanding of cloud native architectures, SaaS solutions (Salesforce, SAP, Dynamics CRM,ServiceNow, etc..), cybersecurity posture fundamentals, API ecosystems and legacy on-premise enterprise architectures
Strong understanding of cloud native architectures, SaaS solutions (Salesforce, SAP, Dynamics CRM,ServiceNow, etc..), cybersecurity posture fundamentals, API ecosystems and legacy on-premise enterprise architectures
Proven experience in multi-system integration, event-driven architecture, and API governance. * Define integration patterns using SAP Integration Suite, API Management, and Cloud Connector.
Proven experience in multi-system integration, event-driven architecture, and API governance. * Define integration patterns using SAP Integration Suite, API Management, and Cloud Connector.
Experience building REST API-driven web applications for high-volume sites
Experience building REST API-driven web applications for high-volume sites
Familiarity with API design and integration patterns in financial services
Familiarity with API design and integration patterns in financial services
You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
Our team owns the web API and other integration interfaces of MediaWiki, enabling other teams to create features that allows users to access, edit, and consume knowledge efficiently and reliably. * Contributing to the adoption and advocacy of API-first development, and influencing best practices in system design, SLOs/SLAs, and OpenAPI Specification; * Interest in API-first development or improving developer experience.
Our team owns the web API and other integration interfaces of MediaWiki, enabling other teams to create features that allows users to access, edit, and consume knowledge efficiently and reliably. * Contributing to the adoption and advocacy of API-first development, and influencing best practices in system design, SLOs/SLAs, and OpenAPI Specification; * Interest in API-first development or improving developer experience.
Documenting product designs, data flows and API specs, and ensuring backlogs are maintained in Jira
Documenting product designs, data flows and API specs, and ensuring backlogs are maintained in Jira