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96 API jobs in Clerkenwell + 20 miles
406 exact matches jobs are outside your preferred location
Design and manage secure networking and service meshes (TLS, Istio, Linkerd, API gateways) to ensure encrypted and reliable service-to-service communication. * Experience designing and managing secure networking and service mesh (TLS, Istio, Linkerd, API gateways).
Design and manage secure networking and service meshes (TLS, Istio, Linkerd, API gateways) to ensure encrypted and reliable service-to-service communication. * Experience designing and managing secure networking and service mesh (TLS, Istio, Linkerd, API gateways).
Preferred: Familiarity with the development of REST API services
Preferred: Familiarity with the development of REST API services
Experience in consuming a RESTful API.
Experience in consuming a RESTful API.
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
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
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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.
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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.
Provides advanced knowledge of API development, API management, and implementation strategies to enhance scalability and system efficiency.
Provides advanced knowledge of API development, API management, and implementation strategies to enhance scalability and system efficiency.
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).
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You will lead the security of high-performance computing (HPC) environments and associated systems, leveraging Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, App & API Protector) to protect classified infrastructure. * Design and implement security strategies for HPC environments and defence systems, integrating Akamai Edge solutions for DDoS mitigation, WAF, and API protection. * Expertise in Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, EdgeWorkers) for DDoS, WAF, and API protection.
You will lead the security of high-performance computing (HPC) environments and associated systems, leveraging Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, App & API Protector) to protect classified infrastructure. * Design and implement security strategies for HPC environments and defence systems, integrating Akamai Edge solutions for DDoS mitigation, WAF, and API protection. * Expertise in Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, EdgeWorkers) for DDoS, WAF, and API protection.
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Strong technical skills: HTML, CSS, basic JavaScript, API integrations, Workato and troubleshooting.
Strong technical skills: HTML, CSS, basic JavaScript, API integrations, Workato and troubleshooting.
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To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
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Code quality and API-First principles are at the heart of all our development. * Deliver high efficiency, high availability, concurrent and fault tolerant software systems using API-First principles. * An interest in setting strategy and direction, backed by real-work experience, ideally in an API-First setting. * Experience designing, building, and deploying scalable micro-services using API-First principles using at least one of REST/gRPC. * Strong understanding of RESTful API design principles and best practices. * Experience with API authentication and authorization mechanisms (e.g., OAuth, JWT). * Experience with API gateway technologies (e.g., Apigee, Kong) is beneficial.
Code quality and API-First principles are at the heart of all our development. * Deliver high efficiency, high availability, concurrent and fault tolerant software systems using API-First principles. * An interest in setting strategy and direction, backed by real-work experience, ideally in an API-First setting. * Experience designing, building, and deploying scalable micro-services using API-First principles using at least one of REST/gRPC. * Strong understanding of RESTful API design principles and best practices. * Experience with API authentication and authorization mechanisms (e.g., OAuth, JWT). * Experience with API gateway technologies (e.g., Apigee, Kong) is beneficial.
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Performing automation and API testing when required. * API automation testing using JavaScript * Experience in API and integration testing
Performing automation and API testing when required. * API automation testing using JavaScript * Experience in API and integration testing
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Extensive Salesforce development experience (including Apex triggers, classes, asynchronous Apex, API Integrations, Platform Events, LWCs and Sites)
Extensive Salesforce development experience (including Apex triggers, classes, asynchronous Apex, API Integrations, Platform Events, LWCs and Sites)
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Automated end-to-end and API testing tools and techniques
Automated end-to-end and API testing tools and techniques
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Experience creating RESTful APIs and ensuring API extensibility.
Experience creating RESTful APIs and ensuring API extensibility.
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Expertise in Salesforce deployment strategies, including change sets, Salesforce DX, and metadata API. * Experience in Salesforce API integration (REST, SOAP, Platform Events).
Expertise in Salesforce deployment strategies, including change sets, Salesforce DX, and metadata API. * Experience in Salesforce API integration (REST, SOAP, Platform Events).
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API Development and Management: Develop, deploy, and maintain custom APIs (REST, SOAP) to facilitate seamless data exchange and action execution between Agentforce and other systems. * 5+ years of hands-on experience in a technical integration role, such as an Integration Developer or API Specialist. * Expertise in API design and development (REST, SOAP, webhooks).
API Development and Management: Develop, deploy, and maintain custom APIs (REST, SOAP) to facilitate seamless data exchange and action execution between Agentforce and other systems. * 5+ years of hands-on experience in a technical integration role, such as an Integration Developer or API Specialist. * Expertise in API design and development (REST, SOAP, webhooks).
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Influence API and BFF design to optimise clientserver contracts and reduce complexity at the edges.
Influence API and BFF design to optimise clientserver contracts and reduce complexity at the edges.
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Recurring Payments Innovation: Build rock-solid API infrastructure and platform capabilities for pull payment functionality, tackling complex collection challenges head-on. * B2B Technical Product Expertise: You've got solid experience with API products, PaaS solutions, or technical SaaS platforms and love building merchant banking infrastructure for developers who integrate multiple financial endpoints and banking APIs.
Recurring Payments Innovation: Build rock-solid API infrastructure and platform capabilities for pull payment functionality, tackling complex collection challenges head-on. * B2B Technical Product Expertise: You've got solid experience with API products, PaaS solutions, or technical SaaS platforms and love building merchant banking infrastructure for developers who integrate multiple financial endpoints and banking APIs.
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