1 to 25 of 46 Permanent JSON Jobs in London

APIs for payment processing, reconciliation, and message translation. Implement ISO 20022 (MX) to MT message transformation logic and related schema validation using XML/JSON parsers. Integrate with payment gateways, SWIFT interfaces, RTP/FedNow services , and internal systems like Core Banking or Treasury. Develop components supporting real-time payments ...

Junit, Mockito, PowerMockito & Wiremock Experience and understanding of CICD pipeline of Docker, Jenkins and Kubernetes Understanding of all the agile ceremonies. Good understanding of JSON and XML Experience in Relational Database Management System (e.g. PostgreSQL) Nice to have skills: Knowledge of Workflow/Business Process Management tools Experience with front ...

experience testing REST APIs, GraphQL services, and microservice-based systems. Experience with API testing tools such as Postman or SuperTest and strong understanding of JSON schema validation. Hands-on experience with performance testing tools such as Apache JMeter, k6, or similar frameworks. Strong understanding of automation design patterns and scalable ...

experience with PostgreSQL, including performance tuning and complex queries. Experience with background job processing using Sidekiq and Redis. Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO). Hands-on experience with AWS services and containerised deployments (Docker). Experience troubleshooting and supporting production systems. Comfortable ...

Gutenberg ecosystem Strong full‐stack capability across PHP, HTML, CSS, JavaScript, and modern front-end frameworks (React) Proven experience building custom Gutenberg blocks, WP-JSON API endpoints, and custom feeds Solid understanding of performance optimisation, Core Web Vitals, caching strategies, and scalability Confidence working with Git, Agile delivery methods ...

building UI tests with tools such as Selenium or Playwright. * Working knowledge of test frameworks such as JUnit or TestNG. * Understanding of APIs, HTTP, JSON and related testing tools. * Comfortable working in data-rich environments and validating data accuracy. * Experience using AI tools within your engineering workflow to accelerate development ...

optimizing SQL queries on PostgreSQL databases. Strong experience with multithreading, data structures, and concurrency scenarios. Proficient in using REST APIs, XML, JAXB, and JSON in creating layered systems. Experience with AWS Services (AWS Lambda, AWS CloudWatch, API Gateway, ECS, ECR, SQS, SNS). Familiarity with Open AI APIs, Agentic ...

resolve application and integration issues. xehkeey Support Azure-based application hosting and associated services. Essential Skills & Experience Candidates must have experience with: Python SQL JSON API development (WebMethods, Kong) Containerised deployments (Docker) Microsoft Azure ...

serverless technologies (e.g. AWS Lambda, API Gateway) Solid knowledge of Linux-based systems Ability to write code/scripts (ideally Python, plus YAML/JSON) Experience working with distributed, enterprise-level systems Strong communication skills and ability to work with stakeholders Additional Desirable Skills Experience with tools such as Ansible ...

serverless technologies (e.g. AWS Lambda, API Gateway) Solid knowledge of Linux-based systems Ability to write code/scripts (ideally Python, plus YAML/JSON) Experience working with distributed, enterprise-level systems xehkeey Strong communication skills and ability to work with stakeholders Additional Desirable Skills Experience with tools such ...

Kafka) and distributed processing (Spark) · Experience working with cloud infrastructure (AWS: S3, Lambda, EC2, DMS) · Experience handling structured and semi-structured data (e.g. JSON) · Familiarity with CI/CD, modular development, and code documentation · Strong communication and teamwork skills · Interest in AI, machine learning, and data-driven tools Desired Skills ...

data stores) Experience in designing and implementing effective tests (unit, component, integration, end-to-end, performance, etc.) Experience in working with technical data formats (JSON/Avro/Parquet) Strong analytical and problem-solving skills Experience in explaining and converting complex concepts into digestible information to be consumed by both ...

services (strongly preferred) and cloud-native patterns C# or Java Containerisation (Kubernetes/Docker/OpenShift) Infrastructure as code (Terraform) Integration and messaging (APIs, JSON/Swagger/OpenAPI, AMQ or similar) CI/CD and DevOps tooling; Git-based workflows Nice to have Endur modernisation experience (e.g., upgrades, cloud ...

services (strongly preferred) and cloud-native patterns C# or Java Containerisation (Kubernetes/Docker/OpenShift) Infrastructure as code (Terraform) Integration and messaging (APIs, JSON/Swagger/OpenAPI, AMQ or similar) CI/CD and DevOps tooling; Git-based workflows Nice to have Endur modernisation experience (e.g., upgrades, cloud ...

core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools (Github actions a bonus) Experience with common front-end development tools such as Babel, Webpack ...

CICS webservices, ZOS Connect EE, DB2, and batch processing. Strong skills in mainframe transaction management, JCL, and system debugging tools. Familiarity with SOAP, WSDL, JSON, and integration patterns such as SOA and RESTful APIs. Good working knowledge of AWS services, particularly CloudWatch, DynamoDB, and Lambda, including monitoring, troubleshooting, and optimisation. ...

with AI or ML systems in production and 3–5 years of substantive software/platform engineering Deep JavaScript/Node.js skills Azure Fluency JSON data structures, REST API design, and complex semi-structured data Practical LLM application — RAG architectures, prompt engineering etc Comfort with both relational ...

related risks. Required Skills & Qualifications Technical Expertise Saviynt Proficiency: 5+ years of hands-on experience with Saviynt IGA (EIC). Mastery of Saviynt UI, JSON rules, SQL queries, and API-based integrations. Identity Fundamentals: Deep understanding of LDAP/AD, SAML, OAuth, OpenID Connect, and SCIM. Programming/Scripting: Strong ...

first products that deliver measurable value. • Develop and deploy production‐grade AI agents on GCP using ADK, integrating with internal systems via REST and JSON APIs. • Build and maintain robust evaluation and monitoring frameworks, including online and offline testing, A/B experiments and performance dashboards. • Integrate AI agent functionality ...

data stores) • Experience in designing and implementing effective tests (unit, component, integration, end-to-end, performance, etc.) • Experience in working with technical data formats (JSON/Avro/Parquet) • Strong analytical and problem-solving skills • Experience in explaining and converting complex concepts into digestible information to be consumed by both ...

Cisco NSO – Service development and lifecycle Apache Airflow Hasi Corp Vault Openshift Automation development Python Fast API Rest API Netconf Yang modelling XML/Json Jinja/TextFSM Pytest Unit testing Database MongoDB DevOps Docker Git CI/CD Kubernetes Networking Ciena 517x/8180/8114 Nokia BNG/ ...

/S/4HANA patterns), TMS, WMS, carrier/telematics platforms, customer master systems Own integration architecture across: Inbound/outbound APIs (REST/JSON), event-driven messaging (queues/topics), batch feeds, file-based interfaces (S3-based exchanges), structured email fallbacks Demonstrate practical experience with API management and integration ...

etc.) Strong expertise with: AWS data services (e.g., S3, Glue, Lambda, Redshift, EMR, Kinesis or similar) Apache Kafka and event-driven/streaming architectures JSON and modern data interchange formats Deep understanding of unstructured and semi-structured data (logs, documents, streaming events, etc.) Experience designing data lakes, lakehouses, and modern ...

10+ years of Guidewire Integration development experience Proven experience leading integration teams (PolicyCenter, BillingCenter, ClaimCenter). Java, Gosu; REST/SOAP Web Services; XML, JSON Integration Gateway, Cloud API, Batch/Async processing Agile/Scrum delivery environments and using JIRA. Desirable, but not essential.. Guidewire ACE certified integration specialist ...

including task logs, RAID logs, and project trackers. Support technical integration of client data using APIs, SFTP, and UI tools, handling formats such as JSON, XML, and CSV. Analyse and debug large, complex datasets, identifying errors and ensuring data integrity. Test and validate client workflows post-integration, ensuring functionality aligns ...