1 to 25 of 42 Permanent JSON Jobs in London

Azure Developer

Hiring Organisation
CDW UK
Location
London, England, United Kingdom
Apps, Service Bus, Event Grid, API Management, App Service, Data Factory, Key Vault, Azure Monitor, Application Insights. Engineering: C#, .NET, REST APIs, SOAP APIs, JSON, XML, SQL, T-SQL, unit testing, design patterns and SOLID principles. DevOps: Azure DevOps, Git, CI/CD, YAML pipelines, release approvals, build automation ...

NetSuite Technical Lead - Remote working

Hiring Organisation
Communicate Recruitment Solutions LTD
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £80,000 per annum
Systems Integration Design, implement, and support integrations between NetSuite and third-party applications Work with REST/SOAP APIs and data formats such as JSON and XML Support and enhance middleware-based integrations (e.g., Boomi) and direct custom integrations Technical Design & Architecture Translate complex business requirements into technical specifications ...

Director, Application Development Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
level proficiency in Java and frameworks like Spring Boot for building microservices. Strong expertise with relational databases (Oracle) and data modelling (canonical data models, JSON). Deep experience with enterprise messaging platforms (Kafka, IBM MQ). Proven experience implementing AI/ML solutions (using Python or other frameworks) to solve ...

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 ...

Fabric Data Engineer

Hiring Organisation
Initialize
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 per annum
Python and/or PySpark for data transformation and automation. Understanding of Power BI, semantic models, DAX and reporting requirements. Experience working with APIs, JSON, CSV, Parquet, Delta tables and common enterprise data formats. Knowledge of data governance, access control, data quality, metadata and lineage. Good documentation skills ...

Dotnet Developer

Hiring Organisation
LanceSoft UK
Location
London Area, United Kingdom
C# and .NET (.NET Core/.NET) Excellent Object Oriented Programming (OOP) skills and design principles Proven experience designing and implementing APIs (REST/JSON) Solid understanding of application architecture, performance, and scalability Experience with SQL databases (e.g. SQL Server) Familiarity with unit testing, integration testing, and CI/ ...

Integration Developer – Boomi

Hiring Organisation
Required IT
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
Working with Azure Integration Services — including Logic Apps, API Management, Service Bus, and Event Grid Working with SQL databases and handling complex data transformations (JSON, XML) Writing clean, maintainable code in Python or similar languages to support integration workflows Contributing to integration strategy and technical architecture decisions Providing technical guidance ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

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

AWS Databricks Engineer

Hiring Organisation
Capgemini
Location
London Area, United Kingdom
Experience in building ETL/ELT pipelines for batch and near-real-time data processing. Experience with data formats such as Parquet, Avro, ORC, JSON, and CSV. Good understanding of data modelling, data warehousing, and dimensional modelling concepts. Experience with data validation, reconciliation, data quality, audit, and logging frameworks. Experience ...

Threat Detection Engineer

Hiring Organisation
Barclay Simpson
Location
London Area, United Kingdom
Technical Expertise Hands-on experience with SIEM platforms such as Splunk, Microsoft Sentinel, QRadar, Elastic, ArcSight, LogRhythm, or Exabeam Strong understanding of log formats (JSON, syslog, XML, CEF) and ingestion methods (APIs, Kafka, Event Hubs, agents) Experience in detection engineering, threat modelling, and attacker behaviour analysis Proven ability to build ...

Technical Product Manager

Hiring Organisation
City Elite Transaction Services Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 per annum
agile scrum team Familiarity with financial asset classes and the trading lifecycle Exposure to SQL and object-oriented languages Understanding of XML, FIX, JSON or other messaging formats and protocols Benefits Comprehensive health and wellness coverage Generous annual leave Continuous learning and development resources Competitive salary, retirement planning and financial ...

Software Engineer

Hiring Organisation
Scalian
Location
Hounslow, United Kingdom
management, concurrency, and object-oriented design . Hands-on experience with AngularJS and front-end development ( HTML, CSS, JavaScript ). Familiarity with REST APIs , JSON , and web service integration . Experience working in software maintenance/support roles with bug fixing and system enhancements. Strong debugging and problem-solving skills ...

Implementation Lead (EMEA)

Hiring Organisation
WTW
Location
Greater London, United Kingdom
Employment Type
Full Time
EntraID, Group Policy Strong exposure to automation (Azure DevOps, GitHub, Puppet, Terraform) Good understanding of provisioning and configuration systems – DSC, ARM Python, PowerShell, CLI, JSON SQL, SQL Azure, MS Fabric, Databricks IIS (Internet Information Services) Windows Operating System (Windows 10, Windows 11) Windows Server (2016, 2019, 2022, 2025) Exposure ...

Senior Data Pipeline Engineer

Hiring Organisation
NETbuilder
Location
Greater London, England, United Kingdom
processors OpenTelemetry: strong working knowledge of the OpenTelemetry Collector (receivers, processors, exporters) and OTLP Scripting and automation: Python, Bash Data formats and parsing: JSON, regex, syslog, and common log, metric and trace formats Cloud platform knowledge: AWS, Azure, and/or GCP Container and orchestration: Kubernetes, Docker, OpenShift Familiar with ...

Network Engineer

Hiring Organisation
Capgemini
Location
Greater London, United Kingdom
Employment Type
Full Time
Experience of working in a secure, accredited environment with a strong governance model Experience of automation/Orchestration: Network stack integration, Terraform, Ansible, Python, JSON, APIs. Experience with key vendors, primarily Cisco (IOS, NX-OS, ACI), F5 (LTM, GTM, ASM), Palo Alto, Fortigate, Checkpoint, Juniper, Azure, Amazon and Google Cloud ...

eDV Application Support Engineer

Hiring Organisation
17918
Location
London, United Kingdom
Skills: Active eDV clearance is essential Proven experience supporting enterprise infrastructure in secure or complex environments Experience working with structured data formats such as JSON, XML and CSV Knowledge of synchronous and asynchronous systems and integrations Desirable skills: Familiarity with API definitions: Swagger/Open API 3/Shell Scripting ...

Power Platform Developer - Hybrid

Hiring Organisation
Silver Birch Rec Ltd T/A Etech Partners
Location
London, United Kingdom
Employment Type
Permanent
Salary
£65,000
collections and variables. Good knowledge of Power Fx formulas and functions. Experience building automated workflows using Power Automate. Experience working with HTTP connectors, Parse JSON and API integrations. Knowledge of custom connectors, REST APIs and web services. Experience implementing error handling, conditions and parallel processing within flows. Ability to work ...

eDV Application Support Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Westminster, Greater London, UK
Skills: Active eDV clearance is essential Proven experience supporting enterprise infrastructure in secure or complex environments Experience working with structured data formats such as JSON, XML and CSV Knowledge of synchronous and asynchronous systems and integrations Desirable skills: Familiarity with API definitions: Swagger/Open API 3/Shell Scripting ...

Ruby Developer

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 80,000 Annual
Strong understanding of OOP & Rails architecture Extensive experience with PostgreSQL (performance tuning, complex queries) Background job processing with Sidekiq & Redis Expertise in RESTful APIs , JSON, JWT, SSO Experience with AWS & Docker Production system support & troubleshooting Strong communication skills & Agile/Scrum experience Ruby on Rails Developer Due to the volume ...

Application Support Engineer

Hiring Organisation
4Square Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
deployed into customer or operational environments Strong troubleshooting skills across interconnected systems Experience analysing logs, metrics, telemetry or time-series data Familiarity with SQL, JSON, Python, Excel or similar tools Strong written communication skills and confidence dealing with customers Ability to work autonomously and know when to escalate issues Familiarity ...

Ruby on Rails Developer

Hiring Organisation
Rise Technical
Location
London Area, United Kingdom
Rails developer with deep expertise in PostgreSQL and background processing via Sidekiq and Redis. You should be highly proficient in building RESTful APIs, managing JSON serialisation, and implementing secure authentication methods like JWT or SSO. Beyond coding, you will possess knowledge of Docker and AWS, alongside the communication skills required ...

Solutions Architect, Legal Technology

Hiring Organisation
Brimstone Consulting
Location
City of London, London, United Kingdom
Employment Type
Permanent
solutions meet security, compliance, and governance requirements Contribute to solution scoping, costing, and technical decision-making Skills & Experience Strong experience with API integrations (REST, JSON, OAuth, event-driven architecture) Background in cloud ecosystems (e.g. Microsoft 365, Azure or similar) Experience with workflow automation tools (e.g. Power Automate, Logic Apps ...

Pre-Sales Technical Architect for SaaS Integrations

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Experience in a technical pre-sales, solution architecture, or sales engineering role within a SaaS environment for large enterprise clients. Familiarity with RESTful APIs, JSON/XML, authentication protocols (OAuth, SAML), and cloud platforms (AWS, Azure, GCP). Understanding of cloud data platforms (Azure experience preferred). Familiarity with version ...

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 ...