1 to 25 of 78 Permanent JSON Jobs in London

Senior Salesforce Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
building modern UI components with Lightning Web Components (LWC) and Aura. Integrations: Proven track record of designing and executing complex API integrations (REST, SOAP, JSON, Event‐Driven Architectures). DevOps & Tooling: Proficient with Git‐based version control, SFDX, metadata deployment pipelines, and automated testing frameworks (>85% code coverage standards). ...

Senior Quality Engineer

Hiring Organisation
Pontoon
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 - £550.00 per day
Execution Automation & Tools Selenium Playwright (essential) Postman REST API Testing JMeter/Performance Testing Jira Xray/Zephyr Technical Skills SQL and Database Testing JSON/REST Services Mobile Testing (iOS & Android) Web Application Testing Test Data Management Log Analysis and Troubleshooting DevOps & Delivery GitHub Git CI/CD Pipelines ...

Senior Java Developer

Hiring Organisation
CODEVERSE LIMITED
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£300.00 - £400.00 per day
Design and optimise AWS Aurora PostgreSQL databases and data platforms. Deploy and support applications using Docker and Kubernetes . Develop API integrations using REST, JSON and modern API design practices. Implement resilient systems with appropriate retry, timeout and error-handling mechanisms. Work with monitoring and observability tools including Grafana, Prometheus ...

AVP Software Developer

Hiring Organisation
Adecco
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
frameworks like Spark. Data Engineering Knowledge: - Proven experience building ETL/ELT pipelines and using orchestration tools (Airflow, Azure Data Factory). - Understanding of JSON, XML, APIs, and data ingestion technologies. Cloud Experience: - Familiarity with cloud platforms (Azure, AWS, GCP) is a plus. Preferred Qualifications: Understanding of data governance ...

Java + CloudNative

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
JavaScript (ES6+), Redux/Context API, HTML5, CSS3, REST/gRPC integration. Streaming & Messaging: Apache Kafka, Apache Flink. APIs & Protocols: RESTful web services, gRPC, JSON, Protocol Buffers. Core Computer Science: Strong mastery of data structures, algorithms, object-oriented design, and design patterns. DevOps & Tooling: CI/CD pipelines (Jenkins, GitLab ...

Senior Java Developer (Azure)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
right job, can work with Relational (such as Postgres) and Non-relational (DynamoDb, MongoDb) data stores and is at ease when working with JSON and XML technologies We Offer Growth opportunities including access to Udemy Flexible and autonomous working Competitive salary Annual bonus 25 days holiday + bank holidays. After ...

Alpha Data Implementation, Implementation Business Analyst (AVP)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
write complex queries, joins, aggregations, reconciliation queries, and validation scripts.Experience working with structured and semi-structured data formats including SQL tables, CSV, XML, JSON, and Parquet.Exposure to cloud-based data and analytics platforms such as Snowflake, Databricks, AWS, Azure, or Google Cloud.Familiarity with reporting and business intelligence tools such ...

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 ...

Software Engineer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
Awareness of clean coding and SOLID principles. Exposure to AWS cloud services. Experience with JUnit or other testing tools. Basic knowledge of XML/JSON data formats and Unix shell scripting. Familiarity with version control and build tools like Git, Maven, Jenkins. Behavioural Competencies Collaborative team member eager to support ...

AI & Copilot Developer

Hiring Organisation
Hunter Selection
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum 33 days holiday, bonus + more
experience with Power Apps and Power Automate. Experience or exposure to Copilot Studio, AI Agents, or Microsoft AI technologies. Knowledge of Dataverse, Power FX, JSON, JavaScript, and API integrations. Familiarity with Microsoft 365 and Azure environments. Strong problem-solving and analytical skills. Excellent communication skills and the ability to work ...

Business Intelligence Developer

Hiring Organisation
Comtecs
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
experience, combined with the ability to engage confidently with business stakeholders. You will possess: Expert SQL skills including stored procedures, functions, XML and JSON data types. Strong understanding of Data Warehouse methodologies such as Kimball and Inmon. Strong Power BI report and dashboard development and DAX skills, including semantic modelling ...

Business Intelligence Developer - SQL, ETL, Power BI, DAX

Hiring Organisation
Comtecs Ltd
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
experience, combined with the ability to engage confidently with business stakeholders. You will possess: Expert SQL skills including stored procedures, functions, XML and JSON data types. Strong understanding of Data Warehouse methodologies such as Kimball and Inmon. Strong Power BI report and dashboard development and DAX skills, including semantic modelling ...

Senior Data Privacy & BigID Consultant

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
basics (IAM, RBAC) Encryption, tokenization, and data masking techniques Scripting & Automation Python/Bash for automation and data profiling scripts REST API integration and JSON/XML data handling QUALIFICATIONS Experience 7+ years in data governance, privacy, or information security 4+ years in a client-facing consulting or professional services ...

Fullstack Java Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
essential. Anypoint Studio, Anypoint Exchange, API Manager, Runtime Manager. Experienced in developing integrations using Mule 4 (flows, connectors, components), building and consuming APIs, handling JSON and XML payloads We Care About Our Employees' Happiness By providing: Pension Scheme - contributions matched up to 10% Private medical Cover Income Protection Life Assurance ...

Solutions Architect

Hiring Organisation
CSI GLOBAL LTD
Location
London, UK
Employment Type
Full-time
looking for someone with extensive exposure to API design using a range of different development tools, with experience designing and implementing APIs (REST, JSON). You will be required to: APD (API Product Design) and ATD (API Technical Design) documentation per API required to support dedicated Value Stream outcomes (supporting ...

Senior C# / .NET Developer (Risk/ Securities Lending) - Banking

Hiring Organisation
Robert Walters
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£400.00 - £650.00 per day
Operations and Compliance teams What you'll bring: Strong C# and modern .NET experience Excellent OOP and software-design skills Experience with REST APIs, JSON and SQL databases Experience with cloud platforms (Azure/AWS) Hands on with messaging technologies (e.g. Kafka) Experience in front to back trading or financing ...

Senior Android Developer

Hiring Organisation
Stott & May Professional Search Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Android SDKs, with a deep understanding of Jetpack libraries, Compose and modern Android architecture components. * Kotlin Multiplatform (KMM, KMP) * Experience with RESTful APIs, JSON, and mobile architecture patterns (MVVM, Clean Architecture). * Familiarity with Android Studio, GitHub, mobile CI/CD tools, automated testing frameworks and the Play store deployment ...

Cloud Data Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Data Modelling Skills Star Schema Snowflake Schema Dimensional Modeling Data Vault Data Warehouse Design Data Lake Architecture Data Formats Experience working with: Parquet Avro JSON CSV ORC CI/CD & DevOps Git GitHub GitLab Bitbucket Jenkins GitHub Actions GitLab CI/CD AWS DevOps Tools Domain Experience (Preferred) Experience ...

Senior Bureau Messaging Integration Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
delegated authority or Lloyd’s ecosystem platforms.* Experience with tools such as Azure Integration Services, MuleSoft, Boomi, IBM MQ, Kafka, REST/SOAP, XML, JSON, and managed file transfer solutions.* Knowledge of cloud and hybrid integration architecture.* TOGAF or similar architecture framework knowledge.* Degree in Computer Science, Information Technology, Engineering ...

Software Engineer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
Cucumber, Wiremock, Mockito; TDD and BDD. OO analysis and design; clean coding and SOLID principles. Agile frameworks and DevOps culture/practices. XML/JSON and Java serialization. Desirable Criteria Layered/clean architecture and design patterns. AWS services e.g ECS, RDS, SQS, ECR etc. Containerisation (e.g., Docker). Unix ...

Software Engineer

Hiring Organisation
17918
Location
Westminster, West End, United Kingdom
Cucumber, Wiremock, Mockito; TDD and BDD. OO analysis and design; clean coding and SOLID principles. Agile frameworks and DevOps culture/practices. XML/JSON and Java serialization. Desirable Criteria Layered/clean architecture and design patterns. AWS services e.g ECS, RDS, SQS, ECR etc. Containerisation (e.g., Docker). Unix ...

Technical Product Manager – Fixed Income Technology

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Agile globally distributed team using tools such as Jira, Bitbucket, Sonar & Team City Worked with tools such as IntelliJ, Gradle, etc., Experience on JSON/XML and REST service Core Competencies Excellent communication skills, oral and written; ability to face off to business users. Good team-work skills ...

Senior Backend Engineer x3

Hiring Organisation
IO Associates
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
based platform. The tech stack includes: Node.js, TypeScript & JavaScript AWS (ECS, Lambda, CDK, SNS, SQS, DynamoDB, X-Ray) PostgreSQL/SQL REST APIs & JSON web services Jest, Git, GitHub Flow CI/CD and modern engineering best practices You'll be a great fit if you enjoy writing clean, maintainable ...

Senior Bureau Messaging Integration Architect

Hiring Organisation
I3 Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Lloyd's ecosystem. Hands-on experience with technologies such as Azure Integration Services, MuleSoft, Boomi, IBM MQ, Kafka, REST/SOAP APIs, XML, JSON, and managed file transfer solutions. Experience designing cloud-native and hybrid integration architectures. Knowledge of TOGAF or a comparable enterprise architecture framework. A degree in Computer ...

Senior Bureau Messaging Integration Architect - Insurance

Hiring Organisation
I3 Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
delegated authority and Lloyd's ecosystem platforms. Hands-on knowledge of Azure Integration Services, MuleSoft, Boomi, IBM MQ, Kafka, REST/SOAP, XML, JSON, and managed file transfer technologies. Understanding of cloud and hybrid integration architecture. TOGAF or similar architecture framework knowledge desirable. Integration Architecture or Solution Architecture - London Market ...