26 to 50 of 56 JSON Jobs in London

Contract Threat Detection Engineer

Hiring Organisation
Dynamic Search Solutions Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £500 per day
playbooks and automations Good understanding of common attack techniques, TTPs, and frameworks such as MITRE ATT&CK Scripting or automation capability (e.g., Python, PowerShell, JSON, REST APIs) Strong analytical and problem-solving skills with a methodical approach to engineering delivery Experience working in a SOC or MSSP environment Familiarity with ...

Java Developer – Market Connectivity

Hiring Organisation
Solytics Partners
Location
City of London, London, United Kingdom
Platform. Experience with electronic market protocols: FIX (4.x/5.x) Market-specific APIs (Tradeweb, Bloomberg, MTS, etc.) Binary/Streaming protocols (ITCH, FAST, SBE, JSON over TCP). Familiarity with low-latency patterns, high-throughput messaging, and microservices. Additional Skills Experience with Linux, shell scripting, and performance analysis tools. Knowledge ...

Lead AI Automation Engineer

Hiring Organisation
PaymentGenes
Location
City of London, London, United Kingdom
reporting Build event-driven workflows across email, Teams, APIs, and databases Architect Agent Systems Modular task decomposition Guardrails and validation layers Structured output validation (JSON schemas, rule checks) Logging, observability, fallback logic, and confidence scoring Secure credential and secrets management Governance & Scale Ensure explainability and traceability Design compliant automation aligned ...

ElasticSearch SME

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day up to £500pd (inside IR35)
e.g. Docker, VMware) and Linux with Shell scripting. Hands-on experience supporting ElasticSearch integrations (indexing, query DSL etc) and experience supporting search-driven services (JSON, Logstash, Kibana etc) Experience with Platforms and Operation Systems including, Oracle Solaris 10, Red Hat Enterprise Linux 8, Windows Server 2008/2016/ ...

Adobe Analytics Consultant

Hiring Organisation
Focus on SAP
Location
London Area, United Kingdom
insights. Key Responsibilities: Design and maintain Adobe Analytics tracking implementations using Adobe Launch (Tags) or AEP Web SDK . Develop and manage data layers (JSON/XDM) to ensure consistent and reliable data collection. Configure analytics components such as eVars, props, success events, and processing rules in the Adobe Analytics ...

Ruby on Rails Backend Engineer

Hiring Organisation
Rise Technical Recruitment
Location
Fulham, London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £80000/annum Private Healthcare + Holiday + Pensi
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 ...

Application Support Analyst

Hiring Organisation
FDM Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£60,000 - £70,000 per annum
querying skills and ability to analyse data issues (comfortable reading, writing, and troubleshooting SQL). Exposure to scripting or programming logic (e.g., Python, VBA, JSON, XML, or similar), with a practical, problem-solving mindset—not full-time development. Ability to investigate technical and business issues logically, identify root causes ...

BI Data Developer

Hiring Organisation
Chambers and Partners
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
working knowledge of data integration and modelling, including writing SQL, working with relational databases, and connecting to data sources such as Databricks, data lakes, JSON files, and API-driven services. Experience working confidently across multiple, complex datasets, understanding data lineage, definitions, and limitations, and ensuring outputs are accurate, consistent ...

Java Developer

Hiring Organisation
Sanderson Government and Defence
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £460 per day + Inside IR35
tools such as Apache Spark or in this instance LakeFS, for data processing and management. Useful - R, Apache Spark. Very useful - Python, SQL, JSON, LakeFS. Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome ...

Java Developer

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£460 per day
tools such as Apache Spark or in this instance LakeFS, for data processing and management. Useful - R, Apache Spark. Very useful - Python, SQL, JSON, LakeFS. Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome ...

Automation Specialist

Hiring Organisation
Linnk Group
Location
City of London, London, United Kingdom
Automation (CSA) Operations Orchestration (OO) workflow development and content pack engineering Strong API integration skills Nice to Have Skills Scripting skills ( Python, PowerShell, Bash, JSON/YAML processing ) Experience with CI/CD or version-controlled automation workflows ( Git ) Experience working within regulated enterprise environments ...

PKI/SSH Engineer

Hiring Organisation
Lorien
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
OpenSSH, Kubernetes and service mesh certificate architectures (mTLS, SPIFFE/SPIRE style identities). Proficiency with Scripting and automation (Python, PowerShell, Bash, Go, JSON) and IaC tools (Azure DevOps, Terraform, Ansible). Experience modernising TLS certificate and SSH key management processes, uplifting protocol versions, and improving trust configurations. Knowledge ...

Senior/Principal Data Modeller

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
migrations. Shape and document metadata, lineage, catalogues and source-to-target mapping. Contribute to ETL design and data movement patterns across platforms. Work with JSON, XML, Parquet and other semi-structured formats used across financial systems. Engage senior stakeholders and guide best practice within multidisciplinary teams. Principal level: provide thought ...

Application & Project Support Analyst

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Support, Systems Support, or similar technology roles. Basic understanding of SQL, including reading and running simple queries. Ability to work with and interpret JSON files. Experience reviewing and analysing log files. Understanding of application process flows and how systems interact. Knowledge of ITIL practices (certification desirable). Strong communication skills ...

Boomi Techno-Functional Consultant

Hiring Organisation
E-Frontiers
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 640 Daily
development, experience integrating SAP SuccessFactors with other systems, strong understanding of Boomi AtmoSphere platform. Experience with REST/SOAP APIs, OData services, XML/JSON data formats, data mapping and transformations, SuccessFactors APIs and integration frameworks, knowledge of HR business processes, especially Employee Central, experience with Middleware integration patterns, familiarity ...

Solution Consultant

Hiring Organisation
Mirakl
Location
London, England, United Kingdom
with a track record of leading design sessions and crafting detailed, technical solutions for SaaS platforms You are familiar with web technologies and frameworks (JSON/XML, CSV, Responsive Design, Restful APIs). Fluency in English. We welcome collaborators with their diverse perspectives and experiences to power us forward. These ...

CMS Contractor

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£370 - £390 per day
Ninetailed. * Working knowledge of the wider digital marketing ecosystem, including catalogues, identity, CDP, and consent. * Familiarity with server-side and front-end concepts including JSON and HTML. * Confident communicator with the ability to present, train, and collaborate across hybrid and international teams. For more information please click the Apply link ...

Solutions Engineer

Hiring Organisation
SEEKR
Location
London Area, United Kingdom
with citations – in seconds You might be a fit if You write solid Python and actually enjoy debugging ugly real‐world data and integrations JSON, APIs and webhooks are just part of how you think about systems You’ve built data/ML/automation workflows before and can roughly ...

Scala Developer (Remote)

Hiring Organisation
Stealth iT Consulting
Location
East 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 ...

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 ...

Scala Developer - Remote Contract - Outside IR35

Hiring Organisation
Stealth iT Consulting
Location
City of London, London, United Kingdom
functional programming concepts and idiomatic Scala (immutability, monads; familiarity with Cats or Scalaz is a plus). Experience designing and consuming REST APIs , including JSON validation/serialization (Play JSON, Circe). Proficiency with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimization. Proven experience ...

Scala Developer - Remote Contract - Outside IR35

Hiring Organisation
Stealth iT Consulting
Location
East London, London, United Kingdom
functional programming concepts and idiomatic Scala (immutability, monads; familiarity with Cats or Scalaz is a plus). Experience designing and consuming REST APIs , including JSON validation/serialization (Play JSON, Circe). Proficiency with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimization. Proven experience ...

Senior Kong Developer

Hiring Organisation
Cognizant
Location
london, south east england, united kingdom
Insomnia Stop Light Swagger Hub Swagger Postman REST/API Service Testing Containers & Orchestration Docker Container Kubernetes Security, Authentication & Authorization Authentication & Authorization Security Protocols JSON Web Token (JWT) SAML Programming Languages/Data Formats Lua JavaScript JSON REST API Nice to have skills: Domain Skills: Audit & QC-Regulations Responsibilities: Design … specifications. Oversee the deployment of applications on Kubernetes optimizing resource allocation and system scalability. Ensure robust authentication and authorization mechanisms are in place utilizing JSON Web Token and SAML protocols. Develop and maintain Lua scripts for custom functionalities enhancing application capabilities. Conduct thorough security assessments to identify vulnerabilities and implement ...

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 ...