76 to 99 of 99 RESTful Jobs in London

are deeply integrated with the Android OS. Strong understanding of mobile security principles and best practices, including secure data storage, network communication (mTLS), and threat modelling. Proficiency in consuming RESTful APIs and Real Time data streams (eg, WebSockets) in a mobile environment. Strong understanding of Android performance profiling tools and techniques to debug and optimize for latency. Experience with multi More ❯

are deeply integrated with the Android OS. ? Strong understanding of mobile security principles and best practices, including secure data storage, network communication (mTLS), and threat modeling. ? Proficiency in consuming RESTful APIs and real-time data streams (e.g., WebSockets) in a mobile environment. ? Strong understanding of Android performance profiling tools and techniques to debug and optimize for latency. ? Experience with multi More ❯

You will play a key role in designing scalable, secure, high-performance services that power mission-critical applications within the healthcare technology landscape. Key Responsibilities * Design, develop, and maintain RESTful APIs and microservices using Vue JS and Spring Boot . * Implement scalable, secure, and highly available solutions for enterprise and healthcare applications. * Integrate backend services with NHS Digital systems , including … Information Governance requirements. Required Skills & Experience 5+ years of professional Vuen JS development experience Strong expertise with Spring Boot , Spring Cloud, and distributed microservices. Proven experience designing and building RESTful APIs. Experience working with NHS Digital services , healthcare APIs, or standards such as FHIR, HL7, OpenAPI, or integration with NHS Spine (highly desirable). Hands-on experience with Docker , Kubernetes More ❯

and mobile responsiveness. Database Management: Design and maintain databases (MySQL, PostgreSQL, or equivalent). Optimize database queries and perform routine maintenance tasks. API Development and Integration: Develop and integrate RESTful APIs to enhance application functionality. Work with third-party APIs to integrate additional services. Collaboration: Work closely with designers, developers, and project managers to deliver high-quality products. Participate in … HTML, CSS, JavaScript, and modern JavaScript frameworks). Experience with database design and management (MySQL, PostgreSQL, or equivalent). Familiarity with version control systems (e.g., Git). Experience with RESTful API development and integration. Soft Skills: Strong problem-solving skills and attention to detail. Excellent communication and teamwork abilities. Ability to manage multiple tasks and meet deadlines. Preferred Qualifications Experience More ❯

role focuses on delivering high-quality automated testing across web, API, and data validation for investment and wealth management platforms.You will execute automation scripts, validate complex data flows, test RESTful APIs, and ensure releases meet reliability and performance standards. Role & Responsibilities Develop, maintain, and execute automation frameworks for web, API, and data validation testing within wealth management and trading systems … Perform functional, regression, performance, and integration testing for complex financial applications Test RESTful APIs using tools such as Postman or RestAssured Validate data and perform back-end testing using SQL Integrate automated tests within CI/CD pipelines using Azure DevOps, Jenkins, or equivalent tools Collaborate with developers, product owners, and business analysts to troubleshoot issues and ensure high-quality … Experience 7+ years’ experience in QA engineering within financial services or other complex enterprise environments Strong Python scripting skills for automation Experience with Avaloq (desirable) Hands-on experience testing RESTful APIs and performing data validation Familiarity with CI/CD pipelines, version control (Git), and Agile methodologies Strong SQL skills and experience with back-end testing Excellent analytical and problem More ❯

.NET Developer, .NET 9, C# - Break Into Banking - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Are you stuck in a catch 22 situation i.e. want to get into the financial services arena but your lack of experience within the industry is preventing you … some or all of the following (full training will be provided to fill any gaps in your skill set): .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and Azure SQL. No previous banking experience is required. This is a once in a lifetime opportunity to get involved in one of the More ❯

Graduate .NET Developer - Investment Bank - London (Tech stack: Graduate .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, Graduate .NET Developer) Our client is the world's most respected banking institution. Their story dates back to the 1890s and today they operate from over 10,000 offices in 100 countries. … framework (.NET, .NET Core/ASP.NET MVC, C# or C#.NET winforms) and Azure SQL. Our client offers training in: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. This is a truly amazing opportunity to work for a prestigious banking brand that will do wonders for your CV. They invest More ❯

.NET Developer - Global Phenomenon - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client has created a global phenomenon, connecting people online to unique travel experiences, in more than 60,000 cities and 180 countries. As they approach their 10th anniversary they are looking … .NET Core/ASP.NET MVC, C# and Azure SQL. You will receive industry recognized training in all aspects of: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. Our client offers a structured career progression programme. It is common place for developers within their firm to receive their first promotion More ❯

Data Integration & API Architecture - Build robust integrations with calendar APIs (Google, Outlook), email parsing, e-commerce platforms (Amazon, Target), messaging services, and weather/location APIs. Need experience with RESTful APIs, webhooks, and managing multiple third-party service integrations. - AI/ML Integration & Natural Language Processing - Implement intelligent text parsing to extract party details from emails/calendars, build a More ❯

.NET Developer, .NET 9, C# - Global Record Label - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) We are pleased to announce that our client, one of the largest and most recognised brands within the music industry, is seeking .NET Developer to work out of … set that encompasses: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client can provide training into: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. My client offers flexible working hours, home working and amazing offices (onsite cinema, pool tables, bar, free canteen, gym). These positions More ❯

.NET Developer, .NET 9, C# - Computer Gaming Company - London (Tech stack: .NET Developer, .NET 9, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Having sold over 100 million games consoles and over 500 million games over the last decade, my client is undoubtedly the world's most recognised computer gaming brand. We … that encompasses: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client can provide with exposure to: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. This is a truly amazing opportunity to work for a forward thinking and progressive company, one that can provide you with an More ❯

.NET Developer - Fastest-Growing Internet Co Ever - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is changing the way merchants and consumers connect with each other worldwide, and the change has barely started. In 2024, they were the fastest-growing internet company … of: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client can provide you with training into: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. These positions come with an extensive benefits package including bonuses, pension, private medical healthcare, a training budget and 25 days holiday. Location More ❯

.NET Developer (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is a global video technology company with a strong presence in 17 countries. Using cutting edge technologies they help their clients join the dots on Facebook, YouTube and the social web. Their mission … SQL. Our client will give you the opportunity to work on enterprise level software development projects and training into: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. You will follow the firm's rapid career progression programme. Previous top performers have achieved several promotions (and pay rises) within More ❯

.NET Developer - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) After 15 years' experience in the fashion industry, our client has a mission to change the way people find clothes they love by combining technology with the personal touch of seasoned style experts. Our … .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. There are opportunities for training into technologies such as: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. Their benefits include the following: Bonus (10-15%). Share options. Private medial healthcare (family plan included). Company pension (15% company More ❯

.NET Developer, .NET 9, C#, Agile - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is a global innovator who builds software products and apps that are defining the way individuals and teams work today. They make it easy for users and to … Our client will give you the opportunity to work on enterprise level software development projects and provide training into: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. The company is quick to recognize talent and keen to nurture and develop it, as such your career with the company will More ❯

for all Welcome Manager features, including intent-capture, post-call summarization with entity extraction, and error handling. API & Application Development Design, build, and scale the mission-critical, high-availability RESTful APIs that serve our mobile clients (Android-first). Architect and manage the Real Time streaming data flows (audio and text) required for the live transcription feature, utilizing technologies like … Technical & Backend Skills Expert-level proficiency and at least 5 years of production experience with C++ OR Go (Golang) . Strong, proven experience designing, building, and scaling high-availability RESTful APIs for mobile or web clients. Deep experience with distributed systems, microservices architecture, and event-driven patterns. Demonstrated experience with Real Time applications and data streaming technologies (eg, WebSockets, gRPC More ❯

for all Welcome Manager features, including intent-capture, post-call summarization with entity extraction, and error handling. API & Application Development Design, build, and scale the mission-critical, high-availability RESTful APIs that serve our mobile clients (Android-first). Architect and manage the real-time streaming data flows (audio and text) required for the live transcription feature, utilizing technologies like … Technical & Backend Skills Expert-level proficiency and at least 5 years of production experience with C++ OR Go (Golang) . Strong, proven experience designing, building, and scaling high-availability RESTful APIs for mobile or web clients. Deep experience with distributed systems, microservices architecture, and event-driven patterns. Demonstrated experience with real-time applications and data streaming technologies (e.g., WebSockets, gRPC More ❯

collaborate closely with engineering teams and business stakeholders to design and build backend services, APIs, and cloud hosted systems. You will work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services. You will also support deployments, performance tuning, and the improvement of backend architecture and development processes. The ideal candidate will have strong commercial experience … in backend focused .NET development with solid skills in C#, ASP.NET, SQL Server, and AWS cloud environments. Experience working with RESTful APIs, HTML, CSS, JavaScript for integration, and a desire to keep up with modern backend technologies is essential. This is an exciting role that provides the opportunity to join a company at the beginning of its next phase of … processes, and codebase standards The Person: * Experienced .NET Backend Developer with strong C#, ASP.NET, and SQL Server skills * Commercial experience with backend focused development * Proficient in designing and consuming RESTful APIs * Knowledge of HTML, CSS, and JavaScript for integration and debugging * Experience working with AWS services * Strong problem solving skills with good attention to detail and communication abilities More ❯

collaborate closely with engineering teams and business stakeholders to design and build backend services, APIs, and cloud hosted systems. You will work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services. You will also support deployments, performance tuning, and the improvement of backend architecture and development processes.The ideal candidate will have strong commercial experience in … backend focused .NET development with solid skills in C#, ASP.NET, SQL Server, and AWS cloud environments. Experience working with RESTful APIs, HTML, CSS, JavaScript for integration, and a desire to keep up with modern backend technologies is essential.This is an exciting role that provides the opportunity to join a company at the beginning of its next phase of expansion, offering … processes, and codebase standards The Person: * Experienced .NET Backend Developer with strong C#, ASP.NET, and SQL Server skills* Commercial experience with backend focused development* Proficient in designing and consuming RESTful APIs* Knowledge of HTML, CSS, and JavaScript for integration and debugging* Experience working with AWS services* Strong problem solving skills with good attention to detail and communication abilities More ❯

integration patterns (such as synchronous APIs, event-driven architecture, asynchronous messaging, and batch ETL). Lead the design and documentation of internal and external APIs, ensuring best practice in RESTful design, versioning, and OpenAPI standards. Work with Engineering and Data teams to standardise the technical approach for messaging, data extraction, transformation, and load (ETL/ELT) processes across underwriting, finance … an architect specialising in software development, integration, and technical architecture. Advanced knowledge of API implementation, message queues (e.g., Azure Service Bus, Kafka), and event-driven architecture. Deep expertise in RESTful API design, API gateways (ideally Azure API Management), and the OpenAPI specification. Strong understanding of DevOps practices and hands-on experience with CI/CD tooling such as Azure DevOps More ❯

integration patterns (such as synchronous APIs, event-driven architecture, asynchronous messaging, and batch ETL). Lead the design and documentation of internal and external APIs, ensuring best practice in RESTful design, versioning, and OpenAPI standards. Work with Engineering and Data teams to standardise the technical approach for messaging, data extraction, transformation, and load (ETL/ELT) processes across underwriting, finance … an architect specialising in software development, integration, and technical architecture. Advanced knowledge of API implementation, message queues (e.g., Azure Service Bus, Kafka), and event-driven architecture. Deep expertise in RESTful API design, API gateways (ideally Azure API Management), and the OpenAPI specification. Strong understanding of DevOps practices and hands-on experience with CI/CD tooling such as Azure DevOps More ❯

and implement API automation frameworks using Python (PyTest, Requests, or Robot Framework). Automate validation for AI-driven systems, including Agentic AI, LLMs, and data pipelines. Test and validate RESTful APIs, data services, and backend microservices for reliability and performance. Build and maintain automated regression suites for large-scale, data-intensive systems. Integrate automated tests within CI/CD pipelines … improving test automation standards. Required Qualifications: Strong experience in Python for test automation. Proficiency in API testing frameworks such as PyTest, Requests, Robot Framework, or Behave. Good understanding of RESTful APIs. Hands-on experience testing or validating AI services (e.g., LLMs, Cognitive Services, or Agentic AI systems). Experience working with data-heavy systems and validating ETL pipelines or data More ❯

days/week to either London (or) Edinburgh Office Key Skills: OKTA Identity Cloud/WIC (workforce identity cloud)/CIC (customer Identity Cloud) OKTA APIs and SDKs. RESTful APIs and developing web applications. OAuth, OIDC, SAML Implementing Single Sign-On (SSO) with OIDC Okta Lifecycle Management and administrative APIs Java Additional Skills : Azure DevOps/CICD Azure AD/… Entra APIGEE Kubernetes Istio service mesh Requirements Key Skills: OKTA Identity Cloud/WIC (workforce identity cloud)/CIC (customer Identity Cloud) OKTA APIs and SDKs. RESTful APIs and developing web applications. OAuth, OIDC, SAML Implementing Single Sign-On (SSO) with OIDC Okta Lifecycle Management and administrative APIs Java More ❯

Technical Business Analyst - London/Remote (Technical Business Analyst, Technical BA, Business Analyst, BA, Technical Analyst, Systems Analyst, Solutions Architect, API Designers, Systems Analysts, RESTful APIs, Web APIs, JIRA, Confluence, user stories, JSON, Open API Specification, Swagger, HTTP, Agile, SQL) Our client is an exciting and cutting-edge fintech giant with a global presence. They have been a market leader … and their worldwide client base has never been stronger, with significant growth in the last 12 months. They are looking for a Technical Business Analyst with a background designing RESTful API services in fast-paced development teams, to work on consulting projects and help to align information technology with business operations and processes. We are seeking an Technical Business Analyst … with a background in software development and strong experience designing Restful APIs, data models and event-driven processes for development teams. You will also need to be comfortable in HTTP, JIRA/Confluence, user stories, JSON Schema and Open API Specification (Swagger). Excellent Agile and SQL is expected, as is experience in Postman, BPMN and Gherkin. Exceptional communication and More ❯