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72 API jobs in The City, City of London + 20 miles
373 exact matches jobs are outside your preferred location
API Testing: Ability to test APIs using tools like Postman or Swagger.
API Testing: Ability to test APIs using tools like Postman or Swagger.
2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.
2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.
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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
Experience in REST API service development a plus
Experience in REST API service development a plus
Experience in API design, integration, and management for building systems interoperability, including RESTful services, GraphQL, and real-time data streaming protocols.
Experience in API design, integration, and management for building systems interoperability, including RESTful services, GraphQL, and real-time data streaming protocols.
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
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Technical skills: Comfortable using browser developer tools and familiar with basic API testing (Postman experience preferred)
Technical skills: Comfortable using browser developer tools and familiar with basic API testing (Postman experience preferred)
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.
Were primarily in AWS , utilising Lambda, ECS, SQS, API Gateway among others.
Were primarily in AWS , utilising Lambda, ECS, SQS, API Gateway among others.
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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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Support the Developer & API team in the creation of targeted messaging and marketing strategies to influence awareness and adoption of Mastercard products among developers as part of the buying committee.
Support the Developer & API team in the creation of targeted messaging and marketing strategies to influence awareness and adoption of Mastercard products among developers as part of the buying committee.
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IT Jobs in Poland – Work Sponsorship / VISA Provided – Please apply if you are currently in Poland
IT Jobs in Poland – Work Sponsorship / VISA Provided – Please apply if you are currently in Poland
InfinityQuest Ltd,
Europe
Unspecified
IT Jobs in Poland With Work Sponsorship / VISA Hiring at Infinity Quest (Please apply if you are currently in Poland) Already living in Poland? We're hiring experienced tech professionals for global projects - full work permit provided. Only candidates based in Poland will be considered. 1. DevOps Engineer (AWS / Azure / GCP | CI/CD | Terraform / Ansible | Kubernetes) 2. Cloud Data Engineer (AWS (Redshift, Glue) / Azure (ADF, Synapse) / GCP (BigQuery, Dataflow) | Python | SQL | Spark | DBT) 3. Full Stack Engineer (React / Angular | Java / Python / Node.js | Cloud) 4. Java Backend Developer (Java | Spring Boot | Microservices | Cloud Platforms) 5. Data Engineer (Power BI / MSBI | Python | SQL | Snowflake) 6. Data Scientist / ML Engineer (Python | Pandas | TensorFlow / PyTorch | Data Modelling) 7. Golang Developer (Golang | REST APIs | Concurrency | Cloud-native develop
IT Jobs in Poland With Work Sponsorship / VISA Hiring at Infinity Quest (Please apply if you are currently in Poland) Already living in Poland? We're hiring experienced tech professionals for global projects - full work permit provided. Only candidates based in Poland will be considered. 1. DevOps Engineer (AWS / Azure / GCP | CI/CD | Terraform / Ansible | Kubernetes) 2. Cloud Data Engineer (AWS (Redshift, Glue) / Azure (ADF, Synapse) / GCP (BigQuery, Dataflow) | Python | SQL | Spark | DBT) 3. Full Stack Engineer (React / Angular | Java / Python / Node.js | Cloud) 4. Java Backend Developer (Java | Spring Boot | Microservices | Cloud Platforms) 5. Data Engineer (Power BI / MSBI | Python | SQL | Snowflake) 6. Data Scientist / ML Engineer (Python | Pandas | TensorFlow / PyTorch | Data Modelling) 7. Golang Developer (Golang | REST APIs | Concurrency | Cloud-native develop
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Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
Define and maintain API specifications. You understand and have implemented Application Programming Interface (API) standards and cataloguing to drive API/service adoption and commercialization.
Define and maintain API specifications. You understand and have implemented Application Programming Interface (API) standards and cataloguing to drive API/service adoption and commercialization.
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The candidate will hold specialization in designing web applications, middleware/API layer and AWS.
The candidate will hold specialization in designing web applications, middleware/API layer and AWS.
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Create and manage REST/SOAP API integrations with third-party systems.
Create and manage REST/SOAP API integrations with third-party systems.
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Build models, services, and libraries that fulfil the stated API contract and metrics for a project
Build models, services, and libraries that fulfil the stated API contract and metrics for a project
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Knowledge and/or work experience with API's
Knowledge and/or work experience with API's
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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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At NiCE, we dont limit our challenges. We challenge our limits. Always. Were ambitious. Were game changers. And we play to win. We set the highest standards and execute beyond them. And if youre like us, we can offer you the ultimate career opportunity that will light a fire within you. Senior Implementation Engineer, Southampton (5 days a week) So, whats the role all about? We are looking for a talented implementation specialist to join our technology team. Primary focus will be on implementing the technical aspects of NiCE product deployments and non-standard configuration requests as well as assisting product teams to successfully introduce new products/versions. Championing supportability and delivering preventative actions on behalf of our customers is also key. How will you make an impact? * Implementing and supporting custom deployments and integration of vario
At NiCE, we dont limit our challenges. We challenge our limits. Always. Were ambitious. Were game changers. And we play to win. We set the highest standards and execute beyond them. And if youre like us, we can offer you the ultimate career opportunity that will light a fire within you. Senior Implementation Engineer, Southampton (5 days a week) So, whats the role all about? We are looking for a talented implementation specialist to join our technology team. Primary focus will be on implementing the technical aspects of NiCE product deployments and non-standard configuration requests as well as assisting product teams to successfully introduce new products/versions. Championing supportability and delivering preventative actions on behalf of our customers is also key. How will you make an impact? * Implementing and supporting custom deployments and integration of vario
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The primary responsibility of the CI group is to work with broker-dealers and institutional clients to help them integrate their systems to the MarketAxess Fixed Income trading system via Application Programming Interfaces (API). * FIX API integration for various fixed income products as well as Post-Trade and Data API products. * Work closely with Product Owners and customers on the deployment of new API functionality and workflows and implement features with client requirements/needs in mind
The primary responsibility of the CI group is to work with broker-dealers and institutional clients to help them integrate their systems to the MarketAxess Fixed Income trading system via Application Programming Interfaces (API). * FIX API integration for various fixed income products as well as Post-Trade and Data API products. * Work closely with Product Owners and customers on the deployment of new API functionality and workflows and implement features with client requirements/needs in mind
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