151 to 170 of 170 REST Jobs in London

layer connecting multiple internal and external systems within a complex energy trading environment. 💼 Required technical skills: API & Integration Architecture: Strong expertise in API integration, REST API design and exposure, interface-driven architectures, integration-heavy environments, abstraction layers, system decoupling Backend Development: .NET Core, C#, API services, integration services Architeture & Platforms … profile: 🔹 Experience in Trading/Finance/Energy environments 🔹 Senior API/Integration expert with a strong architectural mindset, 🔹 Solid experience designing and implementing REST and legacy integrations, 🔹 Strong background in .NET Core and Microsoft Stack 🔹 Structured, rigorous 🔹 Excellent communication skills with technical stakeholders, 🔹 Comfortable working mainly with technical teams ...

Lead migration of SharePoint 2016 on-premise solutions to SE and Online Build SPFx web parts, extensions, and integrations using TypeScript, JavaScript, React, and REST APIs Manage updates, patches, and service packs to ensure stability, security, and compliance Administer service and web applications, site collections, permissions, authentication, and governance Provide … SharePoint 2016 on-premise Strong expertise in SPFx development and modern front-end technologies (TypeScript, JavaScript, React, HTML5, CSS3) Experience integrating SharePoint solutions using REST APIs, Microsoft Graph, C#, and .NET Hands-on management of on-prem SharePoint environments, including patching, upgrades, performance tuning, and troubleshooting Experience with Business Connectivity ...

scalable Java-based applications across the programme Build and maintain cloud-native solutions on AWS, applying well-architected principles throughout Design, develop, and test REST APIs to a high standard, ensuring performance, reliability, and security Use Postman for API testing, documentation, and validation across development and test environments Contribute … demonstrable senior-level Java development experience on complex, enterprise-scale programmes Solid AWS experience across core services including EC2, Lambda, S3, and RDS Proven REST API design and development experience, with strong understanding of API security and governance Proficient in Postman for API testing and documentation Experience working in Agile ...

Collaborate with Architects, Product Owners, and Engineering teams to translate business requirements into scalable technical solutions Define and implement integration patterns across enterprise systems (REST APIs, middleware, event-driven architectures) Provide hands-on technical leadership , including mentoring developers, reviewing code, and resolving technical challenges Drive adoption of modern engineering practices … core Salesforce data model (Accounts, Opportunities, Cases, etc.) Architecture & Integration Proven experience designing end-to-end solutions within complex environments Strong experience with: REST API integrations Middleware platforms (e.g. MuleSoft, Boomi) Understanding of event-driven architecture and scalable integration patterns Engineering & Delivery Experience working within Agile delivery environments Strong knowledge ...

Senior Java Software Engineer - Java Developer, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Senior Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using … latest tech, generous annual leave and an amazing office with a balcony overlooking Notting Hill. Senior Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence +++++Applicants must have the right to work in the UK, no sponsorship is offered for this role++++++++ ...

support for existing data pipelines, APIs, and reporting frameworks, troubleshooting issues and resolving incidents. * Work across a technology stack centred on Python, Postgres, Docker, REST APIs, and local databases. * Assist with the management and optimisation of automated processes to improve reliability and efficiency. * Support infrastructure including virtual machines and data … role evolves. Profile * The Junior Python Developer will have commercial experience with Python or strong demonstrable project experience. * Experience or exposure to Postgres, REST APIs, and Docker is highly desirable. * Understanding of data processing, transformation, and automated workflows. * Exposure to supporting or maintaining systems, with a willingness to learn ...

Doing • Build and optimise mobile-first applications using React Native (majority of work) • Contribute to web features using React • Integrate APIs using GraphQL & REST • Own features end-to-end — from design to deployment • Improve performance, reliability, and scalability of frontend systems • Work cross-functionally in a product-driven squad model … Requirements: Strong experience with React Native (non-Expo, production-level apps) Solid fundamentals in React & modern JavaScript (ES6+) Experience integrating GraphQL/REST APIs Strong understanding of mobile performance, debugging, and lifecycle Background in fintech, payments, or data-sensitive applications Ability to communicate clearly with technical & non-technical stakeholders Experience ...

seamless data flow across procurement and finance systems. Design and deliver integration architecture across Coupa and SAP S/4HANA Build and manage APIs (REST/JSON, OData), IDocs, and BAPIs Oversee master data and transactional integration (P2P, AP) Collaborate with business and technical stakeholders across multiple teams Support full … experience integrating Coupa with SAP S/4HANA Strong knowledge of SAP MM/Procurement and FI-AP processes Hands-on experience with APIs (REST, OData), IDocs, BAPIs Experience with integration platforms (SAP CPI, MuleSoft, Dell Boomi, Azure Integration Services) Strong understanding of P2P/Procure-to-Pay and indirect ...

Azure (primary), Oracle Cloud, and AWS (as onboarded). Develop bespoke automation, integration, and AI‐driven components to support business requirements. Build and maintain REST APIs, integration services, and identity-aware solution patterns. Deliver operational (BAU) and project support for cloud and AI workloads. Collaborate across teams to enhance platform … PowerShell for automation, integration, and AI workflows. Real‐world experience implementing and supporting cloud platforms and identity solutions (Azure, Oracle, EntraID). Experience developing REST APIs, integrating services, and implementing identity flows (OAuth2, tokens). Experience with Azure OpenAI, OpenAI SDK/models, and applying AI services to real-world ...

support complex business processes Build high-quality UI components using Lightning Web Components (LWC) (and Aura/Visualforce where required) Deliver robust integrations using REST/SOAP APIs, OAuth 2.0, and Named Credentials, including error handling, logging, and monitoring Create and optimise Flows (and Flow Orchestration where applicable) to automate … security concepts Proven experience delivering and supporting Sales Cloud/Service Cloud implementations Strong experience with Flows (and Flow Orchestration beneficial) Solid integration experience (REST/SOAP, OAuth 2.0, Named Credentials) Comfortable working in agile delivery teams and communicating effectively with non-technical stakeholders Salesforce Platform Developer I (mandatory) Desirable ...

custom code, and reuse. • Govern technical delivery through design reviews, architecture boards, and technical assurance checkpoints. Integrations & Platform Engineering • Architect and govern integrations using REST, SOAP, IntegrationHub, MID Servers, and event based patterns. • Ensure integration designs are secure, resilient, scalable, and aligned with enterprise integration standards. • Oversee MID Server architecture … Proven experience governing complex, multi team ServiceNow delivery programmes. Architecture & Delivery • Proven experience defining platform wide architecture standards and guardrails. • Strong integration design experience (REST/SOAP, IntegrationHub, MID Server patterns). • Experience working in Agile/Scrum delivery environments. • Excellent stakeholder management and communication skills. ServiceNow Certifications Mandatory/ ...

We’re working with a high-growth Series A startup operating at the intersection of eCommerce and Fintech, building a product that is redefining how people shop online. Their proposition removes friction from the buying ...

opportunity to influence architectural decisions at a critical stage of growth. The Backend Engineer (Full Stack, backend-leaning) will take ownership of complex backend REST API Services and deliver scalable systems using TypeScript and Node.js . You will closely with Product, Engineering and Operations, working alongside the Lead Engineer … delivery standards and elevate system reliability. The Senior Backend Engineer (Full Stack, backend-leaning) will... • Design and maintain scalable Node.js/TypeScript services and REST APIs • Own backend initiatives end-to-end, from architecture to rollout • Strengthen testing strategy across unit and integration layers • Improve data and integration workflows with ...

Analytic Snapshots and Dashboards, Profiles, Creating Roles, Page Layouts, Org - Wide default, Sharing rules, Work Flows. Utilize Salesforce integration methods and tools such as REST/SOAP APIs. Understand and apply relational databases and data modeling principles. Manage CI/CD processes and tools for Salesforce, including Salesforce … custom controllers, Data Loader, Force.com, Eclipse IDE Plug-in, VS Code, Work Flow-Approval, Custom objects, Custom tabs, Email service, Html, Web-service (REST and SOAP) Experience in debugging the code for troubleshooting the issues . ...

Ruby Developer (Ruby, Rails, PostgreSQL, REST API's, AWS/Heroku, ReactJS) - Fully Remote* (Two meet ups per year) - Open to applicants in the UK only - Award Winning Legal Platform - £65,000 - £75,000 G.R.E. Recruitment is delighted to partner with an award-winning legal technology provider who are continuing … working from Eastern Europe. For this role I am looking for a Ruby Developer with: Minimum 6 years Ruby development experience Experience of developing REST API's Someone who is happy to work across the full stack and take on some ReactJS work on the Front-end, they will consider ...

cases (no-shows, cancellations, profile merges, reservation changes) and how they impact historical data OHIP API Strategy & Data Extraction Act as SME for OHIP REST & Streaming APIs Identify the correct endpoints and payloads for real-time and historical data Design logic for polling vs event-driven architectures (webhooks/streaming … knowledge of: Reservations & Front Desk Cashiering & Folios Profiles & Rate Management Night Audit processes Proven experience with OHIP (Oracle Hospitality Integration Platform) Strong understanding of: REST APIs & JSON API testing tools (Postman or similar) Ability to map API payloads back to real OPERA behaviour Strong analytical mindset — you enjoy digging into ...

production Laravel applications Make architectural decisions and optimise performance Build admin and internal tools using Filament Develop reactive interfaces with Livewire Design and maintain REST APIs Lead and mentor engineers through reviews and guidance Maintain CI/CD pipelines and deployment workflows Work closely with stakeholders to deliver scalable solutions … experience at a senior level Prior experience leading a development team Strong MySQL skills Experience with Filament , Livewire , and Laravel deployment (e.g. Forge) Solid REST API, CI/CD , and Git experience Nice to Have Experience with regulated or compliance-heavy platforms Multi-tenant or role-based access control experience ...

with clear communication and task delegation patterns Implement structured output handling and tool-use integrations Build and maintain scalable backend services using Node.js and REST APIs Ship production-ready agents with reliability, monitoring, and performance in mind Integrate agents with external tools, APIs, and MCP servers Establish observability … primary workflow Strong experience with multi-agent orchestration and tool integration Proficiency in JavaScript/TypeScript and Node.js Experience designing and consuming REST APIs Proven track record of shipping AI agents to production environments Preferred Qualifications Experience with MCP server development or agent-to-tool integration frameworks Familiarity with observability ...

with clear communication and task delegation patterns Implement structured output handling and tool-use integrations Build and maintain scalable backend services using Node.js and REST APIs Ship production-ready agents with reliability, monitoring, and performance in mind Integrate agents with external tools, APIs, and MCP servers Establish observability … primary workflow Strong experience with multi-agent orchestration and tool integration Proficiency in JavaScript/TypeScript and Node.js Experience designing and consuming REST APIs Proven track record of shipping AI agents to production environments Preferred Qualifications Experience with MCP server development or agent-to-tool integration frameworks Familiarity with observability ...

integration timelines and create a scalable process to close validation in weeks, not months. Facilitate architecture conversations across the technical stack we sell into: REST, streaming (WebSocket, Kafka), bulk file (S3, SFTP), Snowflake/data share, AWS PrivateLink, authentication(OAuth2, mTLS, API keys), rate limits, schema versioning, entitlements. Share ownership … background in a technical sales or product role before moving into pre‐sales. Deep fluency in the technical architecture of financial data delivery: REST, streaming (WebSocket, Kafka), bulk file (S3, SFTP), Snowflake/data share, private cloud delivery (AWS PrivateLink). You can whiteboard an integration with a quant team ...