13 of 13 JSON Jobs in Central London

Full Stack Developer (.NET)

Hiring Organisation
DGH Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
experience building enterprise and web-based applications - Proficiency in C#, .NET/ASP.NET - Front-end skills including HTML5, CSS3, JavaScript - Experience with REST APIs, JSON - Familiarity with Git and modern development tools (e.g. Visual Studio) Desirable Skills - .NET Core/.NET 5+ - Angular, Blazor or modern JS frameworks - SQL Server ...

QA Engineer

Hiring Organisation
E-Solutions
Location
City of London, London, United Kingdom
Experience with: Automation frameworks (Jest framework, Java/Springboot, or similar) API testing tools (Postman, REST clients) Ability to: Create automated test suites Validate JSON-based inputs/outputs for APIs and events Knowledge of: BDD frameworks (Cucumber - good to have) Application Modernization Testing Experience in testing: Microservices architectures ...

Integration Architect

Hiring Organisation
Halian Technology Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £600 per day
/v13 WebSphere MQ v9.0 Oracle 19 (SQL, PL/SQL, Database design) Messaging & Integration Kafka, HP NonStop, SWIFT connectivity Message formats: MRM, XML, JSON Programming At least one of: C, C++, SQL, Linux scripting Essential Skills & Experience Proven end-to-end software development lifecycle experience Strong analytical, design ...

Professional Services Consultant

Hiring Organisation
LexisNexis Risk Solutions
Location
City of London, London, United Kingdom
meeting timescale requirements Requirements: Experience of implementing & configuring bespoke customer SaaS products Demonstrate knowledge of using REST API for integrating SaaS platforms, familiar with JSON, XML & Webhooks Have financial Crime knowledge/experience as an analyst, investigator or similar in at least one of the below areas; Application Fraud, Transaction ...

Senior Sales Engineer

Hiring Organisation
Vixio
Location
City of London, London, United Kingdom
authentication schemes (OAuth, API keys, mTLS), explain webhook patterns. Know the difference between synchronous and asynchronous integrations. Data Architecture: Understand ETL, data lakes, warehouses, JSON/XML payloads, and how data moves between systems. Can scope data volume and throughput requirements. Compliance Infrastructure: Familiar with GRC tool workflows (task management ...

Collibra Integration Engineer

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day Inside IR35
ensure solutions meet functional needs. Maintain and troubleshoot Collibra environments, including metadata ingestion pipelines and DQ scoring. Write & review technical artifacts (e.g., mapping documents, JSON payloads, Oracle query scripts). Provide Guidance to junior team members and act as a liaison between the technical team and business stakeholders. Required skills ...

Adobe AEP CDP Data Architect.

Hiring Organisation
RED Global
Location
City of London, London, United Kingdom
Proven experience in data architecture, enterprise data design, or solution architecture roles. Strong understanding of: Event‐driven data models Customer data modelling patterns APIs, JSON, and data transformation concepts Experience working with cloud data ecosystems (Azure, AWS, or GCP). Strong understanding of GDPR and privacy‐by‐design principles ...

Senior Systems Business Analyst

Hiring Organisation
Cathcart Technology
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
Proven track record delivering end-to-end technology solutions.Experience with software delivery, operating models and transformation initiatives. Understanding of system integrations, data flows and JSON structures.Ability to work confidently across business and technical teams Desirable Insurance, underwriting or pricing platform experience. Exposure to rules-based or configuration-driven solutions.Agile delivery ...

Senior Systems Business Analyst

Hiring Organisation
Cathcart Technology
Location
City of London, London, Bishopsgate, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day
track record delivering end-to-end technology solutions. Experience with software delivery, operating models and transformation initiatives. Understanding of system integrations, data flows and JSON structures. Ability to work confidently across business and technical teams Desirable Insurance, underwriting or pricing platform experience. Exposure to rules-based or configuration-driven solutions. ...

Scala Developer (Remote)

Hiring Organisation
Stealth iT Consulting
Location
City of London, 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 ...

Application Designer

Hiring Organisation
Halian Technology Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
Connect Enterprise (ACE) v12/v13 IBM WebSphere MQ v9 Databases: Oracle 19 (SQL, PL/SQL, data modelling) Messaging & Data Formats: MRM, XML, JSON Integration Exposure Kafka HP NonStop systems SWIFT connectivity Required Skills & Experience Proven experience across the full software development lifecycle Strong **analysis, design andHeres a clean … development, and administration WebSphere MQ (MQ v9+) Messaging design and implementation Oracle Database (19c) SQL, PL/SQL, and data modelling Messaging formats: XML, JSON, MRM Operating systems: Linux (RHEL) Programming/scripting (at least one of): C/C++ SQL Linux scripting Desirable Skills Knowledge of financial messaging standards ...

Credit Risk Decision Systems Analyst

Hiring Organisation
Solytics Partners
Location
City of London, London, United Kingdom
skills who can independently investigate discrepancies between expected and actual credit decision outcomes while ensuring the integrity of credit risk strategies. Key Responsibilities: Review JSON payloads and credit decision outputs to ensure accuracy and completeness. Validate decisioning outputs against expected credit risk strategy behaviour. Assess end-to-end credit decision … Strong hands-on experience with SAS . Advanced proficiency in Microsoft Excel . Experience working with Credit Risk Decision Systems . Ability to analyse JSON payloads and decision outputs. Experience building and using decision emulators for validation. Good understanding of data validation, business rules, and system integration. Domain Knowledge Strong ...

Product Owner

Hiring Organisation
JSS
Location
City of London, London, United Kingdom
Location: London (Hybrid) Reports to: Director of Product & Proposition MUST HAVE COMMERCIAL BROKING EXPERIENCE The Role An exciting opportunity for an experienced Product Owner to drive the development and continuous improvement of a premium finance ...