1 to 25 of 47 Permanent JSON Jobs in London

Software Engineer III

Hiring Organisation
Pearson
Location
London, England, United Kingdom
Scheduling and orchestration with DBMS_SCHEDULER, and loading data using external tables, SQL*Loader, Data Pump or DBMS_CLOUD. Integrating data from files (CSV, JSON, XML) and APIs from multiple internal and external sources. Implementing pipeline monitoring, logging, and alerting to identify and address issues proactively. Data Quality Designing ...

QA Automation Engineer / Consultant

Hiring Organisation
Methods Consulting
Location
London, UK
Employment Type
Full-time
experience with Serenity BDD, Cucumber/Gherkin, Selenium WebDriver and REST Assured, supported by frameworks such as JUnit and AssertJ.Strong understanding of REST APIs, JSON, authentication, validation and error handling. Experience testing distributed or microservice-based applications, including asynchronous processing and messaging. Ability to verify complete business workflows across service ...

Senior C# .Net Developer

Hiring Organisation
Advanced Resource Managers Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 per day
Preferred Stack C# | .NET Core/.NET 8 | ASP.NET Core | REST APIs | SQL Server | Entity Framework | Azure | Azure DevOps | Git | Docker | Kubernetes | Kafka | Redis | JSON/XML | Swagger/OpenAPI Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource ...

Fixed Income E-Trading Senior Java Developer - Vice President

Hiring Organisation
Citigroup
Location
London, UK
Employment Type
Full-time
Agile globally distributed team using tools such as Jira, Bitbucket, Sonar & Team CityWorked with tools such as IntelliJ, Gradle, etc.,Experience on JSON/XML and REST serviceEducation: Bachelor's degree/University degree or equivalent experienceCompetencies: Excellent communication skills, oral and written; ability to face off to business users. ...

Test Analyst / Software Tester

Hiring Organisation
AWD online
Location
Hounslow, Middlesex, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
functional, regression, integration and API testing concepts Ability to read basic technical documentation, data flows and integration diagrams Familiarity with REST/SOAP APIs, JSON, XML and integration testing basics Knowledge of SQL for data validation Experience testing within Agile delivery teams and sprint cycles Awareness of automation testing concepts ...

Murex Market Risk Developer (Remote) (EST)

Hiring Organisation
Resourgenix Ltd
Location
London, UK
into Murex solutions. Technical skills SQL and Oracle/relational databases Unix/Linux and Shell scripting Python and/or Java XML/JSON and REST APIs Interfaces and integration technologies Git, CI/CD and DevOps processes Batch scheduling and enterprise schedulers Candidates can be based offshore ...

Murex Risk Developer

Hiring Organisation
Advanced Resource Managers Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£60.00 - £63.00 per hour
users. Technical Skills Strong experience with several of the following: * SQL* Oracle/relational databases * Unix/Linux * Shell scripting * Python * Java * XML/JSON * REST APIs/integration technologies * Git or equivalent source-control tools * CI/CD and DevOps processes * Batch scheduling/enterprise schedulers Strong ...

Solutions Architect

Hiring Organisation
Lynx Recruitment Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
cloud-native solutions across AWS, Azure, and/or GCP. Strong understanding of API security, authentication, and integration patterns including OAuth2, OpenID Connect, REST, JSON, and API Gateway technologies. Demonstrable experience producing High-Level Designs (HLDs), solution options, architecture assessments, and technical governance documentation. Strong engineering mindset with a focus ...

Solutions Architect

Hiring Organisation
Lynx Recruitment Ltd
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £80,000 per annum
cloud-native solutions across AWS, Azure, and/or GCP. Strong understanding of API security, authentication, and integration patterns including OAuth2, OpenID Connect, REST, JSON, and API Gateway technologies. Demonstrable experience producing High-Level Designs (HLDs), solution options, architecture assessments, and technical governance documentation. Strong engineering mindset with a focus ...

Senior Solutions Engineer

Hiring Organisation
Choco
Location
London, England, United Kingdom
with low-code or automation tools such as n8n, Zapier, and Tray.ai.Basic programming knowledge (e.g. JavaScript or Python) and working knowledge of REST APIs, JSON/XML, webhooks, authentication (OAuth, API keys), and data mapping.Strong analytical and problem-solving skills with a collaborative, solution-focused mindset.Excellent communicator with the ability ...

Python Software Engineer Agentic AI

Hiring Organisation
Client Server
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
testing and deployment You have experience building AI agents or automating business processes using agentic technology You have experience of working with and creating JSON based REST APIs You're keen to work in a start-up environment You have excellent communication and collaboration skills You are a passionate technologist ...

PKI Security Engineer - CLM, Cryptography, PQC

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£700.00 per day
highly regulated Banking/Financial Services industry (or equivalent). Scripting and Automation experience using PowerShell, Python or Bash. Working knowledge of REST APIs, JSON, OAuth/service authentication and secure automation patterns. Familiarity with Infrastructure as Code (IaC) and configuration automation, Terraform/Ansible, CI/CD platforms ...

Full Stack .Net Software Developer

Hiring Organisation
Nexus Jobs
Location
London, England, United Kingdom
business process automationCapable of working with (and developing) multiple (REST) APIs documented with e.g. OpenAPI/swaggerPowerBI, PowerQuery, Dax & MOther API messaging formats e.g. JSON, XML, SOAPExperience of structured testing and quality assurance approaches (e.g. Test Driven Development and Behaviour Driven Development)A positive and cooperative individual who will work ...

Workday Integrations Consultant

Hiring Organisation
Cognizant
Location
London, UK
Employment Type
Full-time
gathering technical requirements and translating them into practical solutions. Strong troubleshooting, analytical, and problem-solving skills. Knowledge of integration architecture, data mapping, XML, XSLT, JSON, and web service technologies. Strong communication and stakeholder management skills. Ability to manage multiple priorities and work effectively in a fast-paced consulting environment. Eligible ...

Workday Integrations Consultant - AMS (Application Managed Services)

Hiring Organisation
Cognizant
Location
London, UK
Employment Type
Full-time
techno‐functional role. Hands‐on experience supporting Workday integrations in a post‐go‐live or AMS environment. Demonstrated proficiency with integration technologies, including REST, JSON, SOAP, SSL, PGP, SAML, and Workday integration tools. Experience with SaaS‐based integration architectures and monitoring/support models. Strong communication and presentation skills, with ...

Senior Business Analyst - Core Banking Transformation

Hiring Organisation
Proactive Appointments
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£550.00 - £650.00 per day
message mappings and test scenarios for treasury and payments. Strong conceptual and logical data modelling, data mapping and migration reconciliation experience. Ability to interpret JSON and XML schemas, REST APIs and event-driven API specifications. Proven experience authoring RFPs and evaluating enterprise banking software vendors. Expertise in requirements management ...

Knowledge Graph & Semantics Consultant

Hiring Organisation
Capco
Location
London, UK
Employment Type
Full-time
automation, guardrails, auditability and escalation. What We're Looking ForStrong understanding of knowledge representation and semantic technologies, including OWL, RDF, SWRL, SPARQL, JSON-LD, Turtle and N-Quads. Experience with semantic modelling and graph/triple-store technologies such as PoolParty, Stardog, TigerGraph, Ontotext GraphDB, Grakn, MarkLogic, Metaphactory or Neo4j.Ability ...

Senior Forward Deployed AI Engineer - Vice President

Hiring Organisation
Citigroup
Location
London, UK
Employment Type
Full-time
backend services. Experience with REST/gRPC API development, Docker, Git, Linux environments and CI/CD automation pipelines. Understanding of prompt engineering, structured JSON output validation (e.g. Pydantic) and vector search/retrieval patterns. Proven ability to work collaboratively in fast-paced agile squads solving ambiguous technical problems. What ...

Senior Technical Business Analyst - Business Applications - Salesforce

Hiring Organisation
TPXImpact Holdings Plc
Location
East London, London, United Kingdom
Employment Type
Permanent
Salary
£60,000
initiatives, ideally supporting sales, service, or customer operations workflows Technical skills Systems architecture & integrations: Solid understanding of modern integration patterns, web services (REST/JSON), and middleware; hands-on experience authoring technical interface specifications and source-to-target data mapping documents Process mapping & prototyping: Advanced proficiency using visual modeling tools ...

AI Production Architect

Hiring Organisation
Executive Facilities
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£420.00 per day
Python and JavaScript/Node.js with extensive experience building, connecting, and securing REST APIs. Familiarity with context engineering, prompt architecture, and structured data formats (JSON, XML) used to drive automated design and video workflows. An understanding of creative assets and production metadata. Knowing how to programmatically interact with design systems ...

Seismic Engineer

Hiring Organisation
Robert Walters
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 65,000 - 85,000 Annual
Seismic content structures, metadata, permissions, user management and content distribution. Experience troubleshooting and resolving complex technical issues within Seismic environments. Understanding of REST APIs, JSON, authentication and enterprise application integration. Ability to work with technical teams and business stakeholders to deliver Seismic platform enhancements. Experience supporting enterprise SaaS applications within ...

Site Reliability Engineer

Hiring Organisation
JAM Recruitment Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
£700 - £750 per day
Microsoft SQL Server (MSSQL) database administration, following industry best practices. Hands-on experience with identity brokers and modern authentication/authorisation mechanisms (e.g., JSON Web Tokens, PKI). Strong knowledge of Infrastructure as Code (IaC) tools such as Ansible for Linux provisioning and configuration management. Experience working with containerisation technologies ...

Oracle EBS Technical Lead - London

Hiring Organisation
Salt Search
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 - £700.00 per day
Workflow Oracle Application Framework (OAF) Oracle EBS APIs & Open Interfaces Oracle Integrated SOA Gateway (ISG) REST/SOAP API Development Web Services, REST APIs, JSON, XML Oracle Integration and Middleware concepts Technical Design, Code Reviews, Unit Testing & Deployment *Rates depend on experience and client requirements ...

Oracle EBS Technical Lead - London

Hiring Organisation
Salt
Location
London, UK
Workflow Oracle Application Framework (OAF) Oracle EBS APIs & Open Interfaces Oracle Integrated SOA Gateway (ISG) REST/SOAP API Development Web Services, REST APIs, JSON, XML Oracle Integration and Middleware concepts Technical Design, Code Reviews, Unit Testing & Deployment *Rates depend on experience and client requirements ...

Oracle EBS Technical Lead - London

Hiring Organisation
Salt
Location
South East London, UK
Workflow Oracle Application Framework (OAF) Oracle EBS APIs & Open Interfaces Oracle Integrated SOA Gateway (ISG) REST/SOAP API Development Web Services, REST APIs, JSON, XML Oracle Integration and Middleware concepts Technical Design, Code Reviews, Unit Testing & Deployment *Rates depend on experience and client requirements ...