76 to 100 of 109 REST Jobs in Central London

Principal Engineer, Mobile Platform & Backend Systems

Location
City Of London, England, United Kingdom
code and system evolution. Ability to develop a deep understanding of unfamiliar codebases and turn investigation into sound engineering decisions. Experience designing client‐facing REST and GraphQL APIs, with sound judgment about business‐logic placement, product states, and backward compatibility. Understanding of how mobile lifecycle and network constraints affect backend ...

Global Enterprise App Support Specialist

Location
City Of London, England, United Kingdom
incidents across enterprise platforms, providing second- and third-line support and collaborating with infrastructure and development teams. You will work with AWS-hosted services, REST APIs and CI/CD pipelines, maintain documentation, and help improve operational efficiency while adhering to FCA/regulatory standards. #J-18808-Ljbffr ...

Business Analyst (Technology)

Location
City Of London, England, United Kingdom
converting product requirements into detailed user stories and acceptance criteria. Solid understanding of systems architecture, integrations, APIs and data flows. Experience working with REST APIs, JSON and tools such as Postman. Working knowledge of SQL for data analysis, investigation and validation. Experience mapping business processes and assessing downstream impacts. Excellent ...

Business Analyst (Technology)

Hiring Organisation
Morgan Philips Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70000 - £85000/annum
converting product requirements into detailed user stories and acceptance criteria. Solid understanding of systems architecture, integrations, APIs and data flows. Experience working with REST APIs, JSON and tools such as Postman. Working knowledge of SQL for data analysis, investigation and validation. Experience mapping business processes and assessing downstream impacts. Excellent ...

Integrations Engineer

Location
City Of London, England, United Kingdom
technical, software, support, engineering, or integration environment; experience with APIs, connected devices, or software integrations is a plus. A basic understanding of REST APIs, HTTP, and JSON; familiarity with API testing tools like Postman. WebSockets and OAuth2 experience is a bonus. Knowledge of OCPP is advantageous but not required. Experience ...

Data Analyst - Scala

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day insideIR35
technical environment. Key Skills: * Strong Oracle database analysis experience * Hands-on Scala development * Experience with Cats Effect and/or ZIO * Strong knowledge of REST services * Experience with Kafka and messaging platforms Desirable: * AMPS Messaging * SWAPS knowledge * Financial markets experience Immediate requirement - candidates available at short notice are particularly welcome. ...

Web Security Engineer, Akamai

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600 per day
rule tuning, exception management and application onboarding. Good understanding of OWASP Top 10 and OWASP API Security Top 10. Knowledge of HTTP/S, REST APIs and application layer attack mitigation. Experience with vulnerability management, Qualys and attack surface monitoring tools. Understanding of patch management and vulnerability remediation. Strong stakeholder ...

Senior Software Engineer

Hiring Organisation
The Portfolio Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90000/annum
tooling to AI agents. Develop agent-to-agent connectivity, including message contracts, state management, retries and failure handling. Design clear, scalable APIs using REST and/or GraphQL, including authentication, authorisation, versioning and streaming interfaces such as SSE or WebSockets. Build production frontend applications using React, TypeScript and JavaScript. Work … commercial experience with Python for backend and integration development. Strong TypeScript/JavaScript and React experience building production applications. Strong API design experience, including REST and/or GraphQL, authentication, authorisation, versioning and streaming. Hands-on experience with MCP (Model Context Protocol) or comparable tool/plugin integration technologies, alongside ...

D365 CRM Developer

Location
City of Westminster, England, United Kingdom
Model-Driven and Canvas Apps), Power Automate workflows, and Power Pages solutions. Design and implement integrations using Azure Functions, Logic Apps, Service Bus, and REST APIs. Participate in Agile ceremonies including sprint planning, backlog refinement, demos, and retrospectives. Support CI/CD deployments using Azure DevOps and Git repositories. Perform … Skills Microsoft Dynamics 365 CE/CRM C#, .NET Framework/.NET Core JavaScript/TypeScript Dataverse Power Apps (Model-Driven & Canvas) Power Automate REST APIs/Web API Azure Functions, Logic Apps, Service Bus Azure DevOps, Git SQL Server, FetchXML Experience Hands-on experience on Dynamics 365 CE development ...

Mobile Architect - Outside IR35

Location
City Of London, England, United Kingdom
module builds: enough to read, question and validate, not necessarily to write Backend, API and integration Mobile-to-backend integration patterns: BFF, API gateway, REST/GraphQL/gRPC, versioning and contract management Identity and authorisation: OAuth 2.0, OIDC, token lifecycle, session management, step-up authentication; FAPI and Open Banking ...

Dataiku Solution Architect

Hiring Organisation
Everforth Quinnox
Location
City of London, London, United Kingdom
Employment Type
Permanent
Murex, SOLARC, Position Manager, ONTAP, shared mailboxes, exposure systems, broker feeds, exchange data, market reports, web services, and APIs. Establish interface standards for REST APIs, database connections, file transfers, event-driven processes, batch integrations, and workflow callbacks. Define common data-exchange standards using formats such as JSON … with databases, APIs, file systems, enterprise applications, workflow platforms, and reporting tools. Experience with PostgreSQL, Amazon RDS, or comparable relational database platforms. Experience defining REST API, database, batch-file, XML, and event-based integration patterns. Understanding of cloud and on-premises integration architectures. Experience designing solutions with data lineage, traceability ...

Applications Developer (Web / Mobile / Server) City of London / Hybr

Hiring Organisation
Eutopia Solutions Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
applications using Microsoft .NET (.NET Core, .NET Framework) with C#, ASP.NET Core, and SQL Server Implement responsive, user-friendly front-ends Build and consume REST APIs for integration Designing and building AI-powered features and tools Developing and optimising SQL Utilising low-code development platforms such as Power Apps, Power … using Microsoft .NET (.NET Core or .NET Framework) with C#, ASP.NET Core, and SQL Server Minimum of 2 years of experience building and consuming REST APIs Minimum of 2 years of experience in HTML, JavaScript, and CSS Experience building modern, robust web applications using React; familiarity with other front ...

Software Engineer III

Location
City Of London, England, United Kingdom
environments. Collaborate with key stakeholders in Agile, Waterfall, and other development methodologies. Work with Java, Spring Boot, Spring MVC, Microservices, Hibernate, JPA, Cosmos DB, REST APIs, and distributed systems. Configure and support services using Docker, Helm, Kubernetes, CI/Cd pipelines, and cloud environments such as Azure, with a focus … Experience with Docker, Helm, Kubernetes, CI/CD (GitHub Actions preferred), and Azure cloud environments. Familiarity with Kafka/EventHub and strong understanding of REST APIs and distributed systems. Java migration experience (8 → 11/21), Databricks, and Python are good to have. Learn more about our team and culture ...

Salesforce Senior Dev/Tech Lead

Hiring Organisation
Tata Consultancy Services
Location
City of London, Greater London, UK
Lead Management Opportunity Management Account & Contact Management Forecasting Reporting & Dashboards Implement business process automation and user productivity enhancements. Integration & Technical Architecture Design integrations using: REST APIs SOAP APIs Platform Events Middleware platforms Azure Integration Services MuleSoft (preferred) Develop asynchronous integration frameworks using: Queueable Apex Future Methods Batch Apex Scheduled Apex … Experience Cloud Apex Development Lightning Web Components (LWC) Salesforce Flows SOQL & SOSL Salesforce Security Model Sharing & Visibility Design Custom Metadata & Custom Settings Integration Skills REST APIs SOAP APIs Platform Events Named Credentials Connected Apps OAuth Authentication Middleware Integration Patterns DevOps & Tools Salesforce DX Git Azure DevOps Copado Jenkins (desirable ...

AI Deployment Engineer

Hiring Organisation
Emponics
Location
City of London, London, United Kingdom
Employment Type
Permanent
storage supporting current and future AI deployments Troubleshoot integration failures, data inconsistencies, and production issues Key Skills Python & SQL (production-grade pipeline development) REST APIs, webhooks, OAuth, event-driven architecture Orchestration tools: Airflow, Prefect, or Dagster Cloud platforms: AWS, GCP, or Azure Docker & Kubernetes Microsoft 365 & Microsoft Copilot Desirable Skills … data pipelines, and production infrastructure. Strong Python and SQL skills; experienced building robust, production-grade data pipelines from scratch. Deep familiarity with integration patterns: REST APIs, webhooks, OAuth, and event-driven architectures. Experience with orchestration tools (Airflow, Prefect, or Dagster) and transformation frameworks (dbt or similar). Comfortable across cloud ...

Scala Engineer

Location
City Of London, England, United Kingdom
build it, you run it” environment. SENIOR SCALA ENGINEER ESSENTIAL SKILLS: Strong commercial experience with Scala Experience with Play Framework or other MVC/REST API frameworks Strong SQL and database experience Hands-on experience with AWS Experience developing and consuming REST APIs Experience working within Continuous Integration environments Strong ...

Automation Engineer (AppViewX and Keyfactor)

Hiring Organisation
HCLTech
Location
City of London, Greater London, UK
certificate management platforms, and driving operational efficiency through automation and process optimization. This role requires hands-on experience in PKI, Certificate Lifecycle Management (CLM), REST API integrations, scripting, and enterprise automation platforms . The candidate should have strong problem-solving skills and the ability to work collaboratively with security, infrastructure … integrations between AppViewX and Keyfactor Command . Automate certificate issuance, renewal, revocation, and discovery workflows across enterprise environments. Develop and maintain custom integrations using REST APIs , web services, and automation frameworks. Create automation scripts using Python and PowerShell to streamline certificate and PKI operations. Optimize workflow performance, scalability, and reliability ...

Engineering Lead

Location
Westminster, West End, United Kingdom
teams. Our Tech Stack A fundamental understanding of our ecosystem is important: Backend: C#/.NET Core/.NET Framework (being phased out) Patterns: REST APIs, Hangfire, MediatR, Entity Framework, Mass Transit, xUnit Azure: App Services, Functions, Service Bus, Event Hub, CosmosDB, SQL Server, Data Factory Tooling: GitHub, Azure DevOps … Experience building high-performing teams, including structured career development and mentoring staff at all levels. Core Fundamentals: Thorough understanding of OO programming, relational databases, REST APIs, and supporting critical live software services. Desirable Skills: Distributed systems and messaging. Microsoft Azure (Cosmos DB, App Services, Functions, Service Bus). Infrastructure ...

Integration Architect - Java, AWS, FS - OutsideIR35

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600 per day + Outside IR35
integration architecture aligned with enterprise standards Define and govern integration patterns across teams Design and deliver event-driven, API-first, and messaging solutions (NATS, REST) Lead end-to-end integration delivery, including hands-on development (Java/Spring) Ensure scalable, cloud-native solutions on AWS Produce architecture artefacts (blueprints, contracts … cross-team integration efforts Primary Skills: Event-driven architecture and messaging systems (NATS, pub/sub, async patterns) API-first design and integration patterns (REST, gRPC) Java/Spring Boot and microservices architecture Cloud-native integration on AWS (ECS/EKS, SQS/SNS, API Gateway) End-to-end integration ...

Salesforce Engineer

Location
City Of London, England, United Kingdom
reusable, performant, accessible UI, making heavy use of modals, custom data tables and component composition. Own integrations between Salesforce and internal/external systems: REST callouts, named credentials, authentication, request/response mapping, and robust handling of failure cases. Write clean and well-tested Apex: services, triggers, and async processing … Lightning Web Components: lifecycle hooks, reactive properties, wire adapters, events, component composition, and Jest tests. This is central to the role. Strong integration skills: REST/SOAP callouts, named credentials, authentication, data mapping, and handling failure cases properly is also central to the role. Strong design and implementation abilities. ...

Financial Crime Architecture Lead

Location
City Of London, England, United Kingdom
technology landscape, including ComplyAdvantage, OCS, Salesforce, Snowflake and supporting platforms. Determine where capabilities should be integrated, consolidated, enhanced or retired. Define integration architecture including REST APIs, event-driven patterns, data contracts, message queues and near-real-time data flows. Shape the architecture for AI-enabled Financial Crime capabilities, including alert … Compliance and Operations. Technical Environment Exposure to some of the following would be particularly relevant: Salesforce Financial Services Cloud | Snowflake | ComplyAdvantage | OCS | SQL | Python | REST APIs | Event-Driven Architecture | Cloud | CI/CD | DevSecOps | AI/ML | GenAI | LLMs | RAG | Data Governance | Data Lineage #J-18808-Ljbffr ...

Application Support Analyst | Enterprise Technology

Location
City Of London, England, United Kingdom
addition to driving resolution of day-to-day issues, managing incidents and outages to resolution, this role requires a close partnership with the rest of the infrastructure team, the service desk and the wider IT group. In this role, you will work closely with both business stakeholders and engineering teams … base. Support business users offering second- and third-line support. Provide incident management per ITIL standards. Support applications and infrastructure hosted within AWS. Support REST APIs, API gateways, microservices and distributed services. Support application releases and deployments through CI/CD pipelines, ensuring changes are managed and approved in accordance ...

Senior Software Engineer - Customer Order

Location
City Of London, England, United Kingdom
Contribute to event-driven architectures using Kafka to support high-volume transactional workflows across Payments, Pricing, and Fulfilment domains. Design and evolve GraphQL and REST APIs, ensuring consistency, performance, scalability, and an excellent developer experience. Build resilient, low-latency solutions using distributed databases, caching technologies, and modern architectural patterns. Collaborate … teams and products. Solid understanding of distributed systems, event-driven architectures, and asynchronous messaging patterns. Must have designed API-first platforms with GraphQL and REST-based services. Comfortable working with high-volume transactional systems where reliability, performance, and resilience are critical. What's in it for you Being a part ...

Senior Salesforce Developer

Location
City Of London, England, United Kingdom
across the wider Salesforce ecosystem. Drive adoption of modern Salesforce capabilities and development best practices. Integration & Technical Delivery Design and develop Salesforce integrations using REST APIs, SOAP APIs, Platform Events and enterprise integration patterns . Lead technical delivery across integrations, data migration, custom development and third-party applications . Support … Strong knowledge of Salesforce architecture, administration, configuration, security models, workflow automation, validation rules and data management . Experience designing and supporting enterprise integrations using REST/SOAP APIs , alongside strong knowledge of Salesforce integration and application development patterns. Strong experience with asynchronous Apex , including Batch Apex, Queueable Apex and Future ...

Data Engineer (AI) - London

Location
City Of London, England, United Kingdom
Processing (NLP) extract of unstructured data into structured meta-data through the use of tools such as Semantic understanding and meaning (Python, use of REST API). Support ensuring the data flow of any external content coming in is handled to the latest US and EU AI Acts concerning … reporting knowledge based off intricate understanding of business process and measures. Knowledge of Snowflake cloud data warehouse and Azure cloud is preferred. Knowledge of REST API. Good knowledge of SQL Server databases and Python programming language is required. Knowledge of C# is a bonus as is working with Azure data ...