1 to 25 of 42 Web Services Jobs in London

experienced Mainframe Developer to join a prestigious financial institution on a 6-month contract. The role will focus on developing and supporting CICS web services, ZOS Connect EE, and DB2 REST interfaces within a dynamic hybrid working environment. The ideal candidate will have strong experience with CICS web … services, SOAP, WSDL, JSON, and RESTful APIs, and be comfortable working in an Agile/DevOps environment using modern toolsets. Key Responsibilities Design, develop, and maintain CICS web services and ZOS Connect EE/DB2 REST services. Work with Mainframe development tools such as FileAid, Xpediter ...

authority, bordereaux, syndicate operations, and regulatory reporting. Key Responsibilities Guidewire Integration Development Design and develop integrations using Guidewire Integration Framework (GOSU, SOAP/REST Web Services, Messaging, Batch Processes) Build integrations with key London Market systems such as: Lloyd's Delegated Data Manager (DDM) Velonetic (Central Settlement, CLASS … syndication, claims, and endorsements Technical Design & Delivery Translate business requirements into technical designs and integration specifications Optimize performance of integrations across middleware and Guidewire services Conduct code reviews and enforce development best practices Collaboration Work with cross-functional teams: Underwriting, Operations, Claims, Technology Collaborate with offshore/onshore teams ...

Integration Developer - ClaimCenter Location: London, UK Duration: Contract - Inside IR35 Job Description: Design and develop integrations using Guidewire Integration Framework (GOSU, SOAP/REST Web Services, Messaging, Batch Processes) Build integrations with key London Market systems such as: o Delegated Data Manager (DDM) o Velonetic (Central Settlement, CLASS … planning. Required Skills & Experience Technical Skills Strong hands-on experience with Guidewire 10+ (ClaimCenter). Expertise in: o GOSU programming o SOAP/REST Web Services o Messaging, Kafka, MQ, ESB/MuleSoft, Dell Boomi, Azure Integration Services (If applicable) o JSON, XML, XSD, XSLT ...

team delivering innovative solutions as part of the DX Programme. You will be responsible for designing, developing and implementing solutions using the MS Integration Services & MS Power Platform suite including but not limited to Logic Apps, Service Bus, Event Grid, APIM, Functions & Function Apps, SQL Server, Azure SQL, Dataverse … understand client pain points and troubleshoot as challenges arise. Overall Role Objectives Design, develop, and implement successful custom integrations solutions using MS Integrations Services and Power Platform components to automate processes, streamline operations and extend functionality of core applications. Build out an enterprise class data platform interfacing with ...

maintenance & support. Experience of Workday Integration Tools: Proficiency with Workday's integration tools and technologies, including Workday Studio, Enterprise Interface Builder (EIB), and Workday Web Services (WWS). System Integration: Skills in integrating Workday with external systems, such as ERP, CRM. Workday report writer and Payroll interfaces PECI … integration solutions that meet business needs by designing and configuring Workday integrations using tools such as Workday Studio, Enterprise Interface Builder (EIB), and Workday Web Services (WWS). Data Mapping and Transformation: Create data mapping and transformation rules to ensure that data flows accurately between Workday and other ...

Java Developer Permanent Location: Home Based Salary: £70,000 - £75,000 Skills: Java 8, Spring, Maven, Git, JUnit, Web APIs (REST/JSON and XML/SOAP), SC Clearance We are looking to recruit an SC Cleared Java Developer to join a leading technology consultancy working on the upgrade … Responsibilities Design, develop, and enhance Java-based applications supporting legacy systems Contribute to iterative development within an Agile/Scrum environment Build and consume web services using REST/JSON and XML/SOAP APIs Write clean, maintainable, and well-tested code Collaborate closely with other developers, testers ...

their award-winning systems to ensure reliability. In time, this role is expected to expand to support other additional clients as we introduce 'Managed Services' to our portfolio of service offerings. The ideal candidate will be responsible for handling escalations by our support team, developing and maintaining software applications … products and underlying technologies to deliver expert-level support. Essential Skills & Experience Proficiency in C# .NET software development. Comfortable working on backend (e.g. API) web services, as well as Front-end (UX, Blazor predominantly) web services. Experience in cloud-based development, solutions and architectures, preferably on Azure. ...

solid understanding of the software development lifecycle (SDLC). Technical experience with OOAD, SOA, Java, J2EE, Spring, React.js, Node JS, Hibernate, SOAP/REST web services, Spring security, SpringBoot, and AMQP/RabbitMQ. Experience with application servers (Jboss/WebSphere). Experience in writing SQL query reports ...

deep technical capability and delivery quality. Key Responsibilities Design & Build: Lead design and hands‐on development of Java‐based, event‐driven and API‐centric services (microservices), ensuring scalability, resilience, and observability for payments workloads. Payments Programme Delivery: Engineer solutions that align to ISO 20022 message standards and RTP scheme … functional requirements (performance, resilience, security), and programme governance; contribute to audit‐ready documentation. Must‐Haves Strong hands‐on software engineering experience within financial services or similarly regulated, high‐scale environments. Strong expertise in Java/J2EE, Web Services/REST, and microservices design and implementation. Hands ...

required by the business Skills and Experience: Essential 1+ years Microsoft ASP .NET experience C# ASP.NET core MVC/WebAPI Entity Framework RESTful web services and JSON Javascript HTML/CSS Degree in computer science or another closely related subject Desirable T-SQL Web Security and Cryptography ...

managing, and maturing the organisation's business systems, digital products and integration capabilities ensuring they support GGF's business strategy and enable delivery of services to our members and customers. You will need to be hands-on, building the frameworks, processes, and governance structures that will underpin future digital … their newly designed function. Responsibilities: Understand external customer and business needs, through regular stakeholder engagement and effective relationship management, to develop and deliver services that meet and exceed expectations. Establish, own and manage the application portfolio Creation, ownership and management of roadmaps, technical design governance and development processes Lead ...

electronic trading platforms. Messaging Protocols: Familiarity with FIX protocol, MQ, JMS, or similar messaging solutions. API Development: Experience with RESTful and/or SOAP web services. Low Latency Programming: Understanding of techniques for minimizing latency in trading applications. Spring Framework: Proficiency with Spring Boot, Spring MVC, and related technologies. ...

Senior Software Engineer (.Net & Angular) - £70,000 – £85,000 pa + 25% Bonus + Benefits I am working with a leading professional services client in London that are looking for a Senior Software Engineer with full stack capabilities to join a small but talented team. The team is responsible … .NET development. Good level of Angular development and principles (TypeScript, HTML, CSS/SCSS) Strong SQL Server (T-SQL) Experience of building and consuming web services and APIs (SOAP, REST using XML, JSON ) In line with the Conduct Regulations 2003, when advertising permanent vacancies JNC Recruitment are acting ...

currently working with a financial services company in London that is actively recruiting for a Junior Full Stack Developer to join them on a permanent basis. Working as part of a small but growing team, the Junior Developer will be supporting the full development lifecycle, working with the newest … updated and maintained Experience required: 1+ years experience working with C# and .NET Understanding of Angular development Excellent SQL Server skills Experience with web services and APIs, e.g. SOAP, REST CI/CD tooling experience Understanding of Agile/Scrum methodologies In line with the Conduct Regulations ...

assist with all testing and apply bug fixes where required Implement integrations with external systems using REAT or SOAP API's Required experience Web application development skills including JavaScript, CSS HTML Effective Team-player with good communication skills Experience with REST and/or SOAP web services ...

Build LLM-powered features on Azure (e.g., Azure OpenAI, Azure Functions). Utilize and manage RESTful APIs/SDKs to integrate model calls within web services, back-end jobs, and enterprise applications. Design and implement RAG pipelines (chunking, embeddings, indexing, ranking/citation policies) to ground responses … Azure (e.g., Azure OpenAI, Azure Functions, App Service, Key Vault). Proficiency with REST APIs and JSON; integrating LLM calls into applications/services using Python or C# (Node.js also acceptable). Working knowledge of embeddings, document chunking strategies, indexing, semantic search, and citation/grounding techniques. Experience with ...

Automation Engineer | Hybrid 3 days a week in office | London | Permanent A leading financial services client in London is seeking a talented AI Automation Engineer to join their team. Please see below for key details. Role Overview: Analyse and optimise business processes for automation whilst designing, building, and deploying … building end-to-end business process applications, configuring workflows, implementing business rules, managing records, and integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing ...

ensuring adherence to best practices and coding standards, and collaborating with product managers and other stakeholders to deliver high-quality products for the financial services industry. Key responsibilities include coding, debugging, and maintaining applications, conducting code reviews, troubleshooting complex technical issues, and driving innovation with new technologies. Key Responsibilities … Leadership Skills: Demonstrated leadership and team management experience. • Technical Skills: Proficiency in Java and its related frameworks (e.g., Spring Boot, Maven, Gradle), knowledge of web services, and understanding of database technologies like SQL/Oracle are often required. • Soft Skills: Excellent communication, problem-solving, analytical, and interpersonal skills ...

inside IR35 Tech Stack C# .NET Core SQL/Oracle React/Typescript Role Deliver, modernise, and support business-critical applications, frameworks and services across our stack (.NET Framework/.NET Core, HTML/CSS/TypeScript/React, Python, SQL Server, Oracle). The role focuses on refactoring … codebases: modularisation, dependency updates, performance tuning, improved observability, and raising automated test coverage within CI/CD. Embed modern security patterns and controls across web services: strong authentication/authorization (e.g., OAuth2/OpenID Connect), token-based access, secure session management, least privilege/role-based access, mTLS ...

What you'll be doing This role is software-first . BIM is context, not dogma. You’ll be: Designing and building custom tools, services, and integrations Working with C#, JavaScript/TypeScript , APIs, cloud services, and data pipelines Building plugins and automation for platforms like Revit, Dynamo … also web services, internal tools, and bespoke platforms Collaborating directly with clients (engineers, product teams, digital leads) Turning messy real-world problems into clean, maintainable code Some weeks you’ll be deep in an API. Some weeks you’ll be prototyping fast. Some weeks you’ll be untangling ...

week onsite) Duration: 6 Months Day rate: £450 Inside IR35 Minimum of 5 years UK residency required Skills and experience required: Vue Js Responsive Web Development HTML CSS Node JS JavaScript Knowledge of C# .NET (particularly ASP.NET Core) Experience with HTML, JavaScript and web development frameworks (Vue.JS … experience with software design and object-oriented development methodologies Knowledge with both relational and NoSQL databases Knowledge with cloud (Azure preferred) Strong experience with web services development (REST) Knowledge of object-oriented programming, MVC, MVVM, Design patterns and SOLID principles ...

have strong hands-on experience with a variety of test tools and frameworks including Selenium, Appium, TestNG, JUnit, Cucumber/Gherkin, REST/RESTful web-services, Github, TeamCity, Octopus, Jenkins, Postman You have strong JavaScript and TypeScript coding skills, C# development skills also highly desirable You have ...

2+ years’ Oracle Integration Cloud (OIC) experience . 2+ years’ Oracle Fusion Cloud experience . Hands-on development and unit testing of integration components & web services (SOAP/REST/JSON), using OIC, Postman and Curl. Experience developing custom elements using Oracle VBCS . 3+ years’ experience working ...

operating in a Technical Design Authority mode and demonstrable trusted advisor experience Ability to demonstrate advanced scripting and integration skills – JavaScript, SQL, API Web Services Experience integrating ServiceNow with Cloud Infrastructure (e.g AWS, Azure, GCP) Nice to have: Cloud migration experience GenAI experience ITILv4 or equivalent Certified … days leave per year for charitable work of your choice! Flexibility and mobility are required to deliver this role to deliver the first-class services we are known for. Closing Date for Applications: 28/02/2026 Accenture reserves the right to close the role prior to this ...

situations to completion with little to no management involvement. Major Product Areas Technical Post Trade FIX Imports Exports Real Time API/Web Services/XML System Admin Database Performance Web Admin Middle Tier End of Day Reporting Upgrades Batch Compliance Excel AI Citrix Data Management Functional ...