10 of 10 JSON Jobs in Central London

Mainframe Engineer

Hiring Organisation
Impellam Group
Location
City of London, London, United Kingdom
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. ...

Senior AI Engineer

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
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 ...

Senior Full Stack Engineer

Hiring Organisation
Access Computer Consulting
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £440/day
Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development (REST/JSON), including versioning and backward compatibility. Experience with UI testing, component testing, and front end build tooling. Experience in CI/CD pipelines, GitOps workflows ...

Oracle Integration Cloud Developer

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £600/day Inside IR35
integration, security, and performance Required Skills: Strong experience with Oracle Integration Cloud (OIC) Knowledge of REST/SOAP web services Experience with XML, XSLT, JSON Familiarity with Oracle SaaS (ERP/HCM) integrations Understanding of integration patterns and workflows Preferred Qualifications: Experience with Oracle SOA Suite/ICS Basic knowledge ...

Implementation Manager

Hiring Organisation
Trevose Partners
Location
City of London, London, United Kingdom
Experience in implementation, onboarding, or client delivery within financial technology Prior team lead or supervisory experience Hands-on experience working with FIX, XML, or JSON for client connectivity/integrations Understanding of electronic trading workflows and system integrations Strong client-facing experience and ability to manage multiple projects Clear communication ...

Marketing Associate

Hiring Organisation
McGregor Boyall Associates Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55,000
needs into technical solutions and scalable workflows Strong stakeholder management skills with experience working across technical and non-technical team Working knowledge of SQL, JSON, or API troubleshooting Experience with customer data platforms (CDPs) and attribution models Exposure to AI-driven automation or agent-based workflows Understanding of data privacy ...

Scala Developer (Remote)

Hiring Organisation
Stealth iT Consulting
Location
Central London / West End, London, United Kingdom
Solid understanding of functional programming concepts and idiomatic Scala (e.g., immutability, monads, cats/Scalaz familiarity advantageous). Experience designing and consuming REST APIs, JSON validation/serialization (Play JSON, Circe). Experience with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimisation. Proven experience ...

Intelligent Automation Engineer

Hiring Organisation
Rathbones Group Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
ImplementPower Automate(cloud/desktop) flows andPower Appswhere appropriate; create reusable connectors/components; apply DLP policies. Systems integration Integrate with APIs (REST/JSON), SharePoint/Teams/Outlook, CRM, data platforms and event triggers; handle identity, permissions and audit. Quality, reliability & support Write testable solutions, instrument for telemetry … APIs/connectors; permissions & governance. Power PlatformPower Automate(cloud/desktop),Power Apps(canvas/model-driven desirable), DLP, custom connectors. Integration REST/JSON, webhooks, OAuth/Entra ID, basicSQL; event-driven patterns; error/exception strategies. Dev fundamentals Git/Azure DevOps, CI/CD, environment strategy, secure ...

Configuration Engineer

Hiring Organisation
EXL Service
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
focuses on building and maintaining configuration-driven solutions that power enterprise-grade insurance SaaS platforms. You will translate business and functional requirements into structured JSON and YAML configurations, enabling dynamic forms, workflows and rule engines without heavy custom code. Working closely with business analysts, developers and QA teams, you will … particularly exposure to policy administration, underwriting, claims or insurance workflow systems. As part of your duties, you will be responsible for: Configure and manage JSON and YAML-based configurations for forms, rules and workflows Define dynamic UI forms, field validations and conditional logic using configuration files Implement and maintain business ...

Power Platform Developer

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £540/day Inside IR35
Power Platform Developer 3 Months 5 Days per week on site in Canary Wharf £(Apply online only) per day (Inside IR35 My client, in the financial services industry, are looking for a Power Platform Developer ...