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135 Permanent API jobs in West London + 20 miles
702 exact matches jobs are outside your preferred location
Demonstrated skills in cyber threat modeling, malware reverse engineering, and API-triggered automation.
Demonstrated skills in cyber threat modeling, malware reverse engineering, and API-triggered automation.
Minimum of 5 years experience as a C# Developer with proficiency in Python, .NET framework and C# as well as experience with ML.NET, ASP.NET, MVC, Web API Containers (Docker/Kubernetes), Machine Learning Operations (MLOps) and CI/CD
Minimum of 5 years experience as a C# Developer with proficiency in Python, .NET framework and C# as well as experience with ML.NET, ASP.NET, MVC, Web API Containers (Docker/Kubernetes), Machine Learning Operations (MLOps) and CI/CD
Uphold high standards for our uptime and latency requirements while not sacrificing the veracity of API responses
Uphold high standards for our uptime and latency requirements while not sacrificing the veracity of API responses
Replacement of current EDI provider for EMEA, with delivery through new global API led integrations - Rollout of B2B E-Invoicing compliance for Belgium, France and Germany with transition to new global API led integrations.
Replacement of current EDI provider for EMEA, with delivery through new global API led integrations - Rollout of B2B E-Invoicing compliance for Belgium, France and Germany with transition to new global API led integrations.
Replacement of current EDI provider for EMEA, with delivery through new global API led integrations * Rollout of B2B E-Invoicing compliance for Belgium, France and Germany with transition to new global API led integrations.
Replacement of current EDI provider for EMEA, with delivery through new global API led integrations * Rollout of B2B E-Invoicing compliance for Belgium, France and Germany with transition to new global API led integrations.
Experience in Java frameworks like Spring Boot, RESTful API design, microservices architecture, and integration with databases (SQL/NoSQL) and working with at least one messaging platform (MQ/ TIBCO/ Kafka/ Solace)
Experience in Java frameworks like Spring Boot, RESTful API design, microservices architecture, and integration with databases (SQL/NoSQL) and working with at least one messaging platform (MQ/ TIBCO/ Kafka/ Solace)
NEW
Experience consuming RESTful API services * Experience writing RESTful API services, either in Javascript or TypeScript
Experience consuming RESTful API services * Experience writing RESTful API services, either in Javascript or TypeScript
Manage the Kong API Gateway to allow external ingress traffic into the DataCamp Platform. * You have experience with API-gateways or service meshes (Kong, Istio, etc)
Manage the Kong API Gateway to allow external ingress traffic into the DataCamp Platform. * You have experience with API-gateways or service meshes (Kong, Istio, etc)
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.
NEW
Java development, analysis and design - becoming proficient in Git, Docker, Kubernetes, Database design SQL (specifically PostgreSQL), Cloud (specifically AWS), React, API design with REST, GraphQL, and asynchronous events.
Java development, analysis and design - becoming proficient in Git, Docker, Kubernetes, Database design SQL (specifically PostgreSQL), Cloud (specifically AWS), React, API design with REST, GraphQL, and asynchronous events.
APIs: Implement API security best practices (rate limiting, authentication, input validation)
APIs: Implement API security best practices (rate limiting, authentication, input validation)
Test automation following Test Driven Development practices including unit testing, API testing, and end-to-end testing
Test automation following Test Driven Development practices including unit testing, API testing, and end-to-end testing
Thats why our clients financial institutions from fintechs and crypto platforms, to banks and credit unions use our API to power their banking infrastructure.
Thats why our clients financial institutions from fintechs and crypto platforms, to banks and credit unions use our API to power their banking infrastructure.
We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
10+ years of professional software engineering experience with expertise in JavaScript, TypeScript, Node.js, and RESTful API design.
10+ years of professional software engineering experience with expertise in JavaScript, TypeScript, Node.js, and RESTful API design.
You enjoy sweating the details of both user experience and API design.
You enjoy sweating the details of both user experience and API design.
Experience with API-based integrations and onboarding of clients or counterparties into payments/FX systems.
Experience with API-based integrations and onboarding of clients or counterparties into payments/FX systems.
Were primarily in AWS , utilising Lambda, ECS, SQS, API Gateway among others.
Were primarily in AWS , utilising Lambda, ECS, SQS, API Gateway among others.
Designed robust data architectures with a strong grasp of distributed systems, API development, and the patterns that make complex data processing reliable and maintainable.
Designed robust data architectures with a strong grasp of distributed systems, API development, and the patterns that make complex data processing reliable and maintainable.
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Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
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Technical knowledge and experience in producing testable, scalable, reusable and resilient services to provide API services to front end systems.
Technical knowledge and experience in producing testable, scalable, reusable and resilient services to provide API services to front end systems.
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You'll work across modern architectures, leveraging containerisation, event-driven design, and API-first principles to solve complex integration challenges. * Design and manage secure REST/GraphQL APIs via API Gateway, including authentication, throttling, and schema validation. * Apply best practices in Kubernetes and API security, including TLS, KMS, RBAC, and service-to-service authentication. * Strong API design and security expertise (OpenAPI, OAuth2, JWT).
You'll work across modern architectures, leveraging containerisation, event-driven design, and API-first principles to solve complex integration challenges. * Design and manage secure REST/GraphQL APIs via API Gateway, including authentication, throttling, and schema validation. * Apply best practices in Kubernetes and API security, including TLS, KMS, RBAC, and service-to-service authentication. * Strong API design and security expertise (OpenAPI, OAuth2, JWT).
PREMIUM
API testing using coded frameworks and Postman.
API testing using coded frameworks and Postman.
PREMIUM
Lead container, API, and web application security initiatives, including code reviews.
Lead container, API, and web application security initiatives, including code reviews.
PREMIUM
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Strong experience with RESTful API design and distributed systems.
Strong experience with RESTful API design and distributed systems.