151 to 175 of 182 REST Jobs in London

environment. Oracle Cloud Integrations Specialist Essential Skills & Experience Minimum 18 months hands-on experience with Oracle Integration Cloud (OIC) Strong experience designing and consuming REST APIs Proven experience with Oracle Visual Builder Cloud Service (VBCS) Solid understanding of cloud integration patterns and best practices Experience working in structured delivery environments ...

troubleshoot live issues and optimise trading operations. Build, maintain, and document proactive alerting systems and health checks for internal and external connectivity (e.g., FIX, REST APIs). Drive operational excellence through robust incident management, process improvement, and knowledge-sharing across regions. Play a key role in onboarding new trading desks ...

High level (HLD) Experience with the following service now modules: ITSM, ITOM and CSM Proficient in connecting service now with external systems using IntegrationHUb, REST/SOAP and mid servers £400 to £500 a day | London Based - Hybrid working If the above seems of interest then please apply directly ...

High level (HLD) Experience with the following service now modules: ITSM, ITOM and CSM Proficient in connecting service now with external systems using IntegrationHUb, REST/SOAP and mid servers £400 to £500 a day | London Based - Hybrid working If the above seems of interest then please apply directly ...

clients to understand requirements and translate them into technical deliverables. Providing technical expertise in Apex development, Lightning Web Components (LWC), and integrations with external REST APIs. Supporting and mentoring junior developers to build their Salesforce capabilities. Participating in pre-sales activities, helping to shape proposals and identify new opportunities. Managing ...

modelling. Skilled in 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 ...

modelling. Skilled in 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 ...

TypeScript). You'll have a 50/50 split between backend and frontend projects, from designing and developing scalable backend Java services and REST APIs, writing and optimising SQL database queries through to creating user friendly interfaces using Angular (v15+). You'll input into technical discussions and decision … front end experience with JavaScript, Angular or React You have experience with relational databases and SQL query writing You have a strong understanding of REST APIs, real-time systems, CI/CD You're comfortable working with legacy Ruby You have a strong knowledge of software engineering best practices ...

5+ years full stack web development experience 3+ years production React 3+ years production Node.js Strong JavaScript/TypeScript skills Experience designing and integrating REST APIs Solid experience with MySQL, Git, Express.js, Tailwind CSS and Next.js Comfort with AWS or GCP High level of English language proficiency Clear communicator, strong … like having ownership, responsibility, and a real impact on a product, youll thrive here. Tech Stack React, Next.js, TypeScript, Tailwind CSS Node.js, Express, REST APIs MySQL, MongoDB Git, AWS/GCP, Cloudflare Benefits Competitive salary Hybrid working (3 office/2 remote) Ownership of core product areas Additional paid leave ...

automation suites using Playwright (Python) for web applications Create reusable, modular page objects and components to maximize test reuse Implement API testing strategies (REST/GraphQL) integrated with UI tests where appropriate Write clear, maintainable automated tests with robust assertions and meaningful reporting Integrate tests with CI/CD pipelines … testing Demonstrated experience building automation frameworks from the ground up Proficient in Python, with good knowledge of software design patterns Experience with API testing (REST/GraphQL) and integrating API tests with UI tests Familiarity with test frameworks (pytest, unittest) Solid understanding of CI/CD integration and test reporting ...

small but capable engineering team. Key Responsibilities Own and maintain core backend services and APIs Design, develop, and maintain Django-based applications and REST APIs Manage background task processing and asynchronous workflows Ensure system reliability, scalability, and performance in production Work closely with frontend developers building JavaScript-based applications Support … Skills & Experience Strong experience with Python and Django Solid understanding of backend system design and operational concerns Experience building and maintaining APIs using Django Rest Framework (DRF) Experience with relational databases, particularly PostgreSQL Experience with asynchronous task queues such as Celery Familiarity with message brokers such as RabbitMQ and/ ...

collaborate effectively across teams. Key Responsibilities: Backend Development Design and develop scalable services using C#/.NET Core (6+) . Implement and maintain REST APIs aligned with best practices. Work with Entity Framework Core for database access and ORM operations. Build microservices and event-driven components. Frontend Development Develop responsive … Required Skills & Experience 10+ years of professional experience in software development. Strong backend engineering with C#/.NET Core (6+). Solid experience developing REST APIs. Strong React development expertise. Proficiency with SQL Server, stored procedures, indexing, and performance tuning. Practical experience with Azure services: App Services, Functions, APIM, Service ...

Senior Software Engineer (Backend) - Identity & Authentication AWS * TypeScript * Node.js (NestJS) * REST APIs * Auth0 * Transmit Security * GitHub * CloudFormation Permanent, up to £110,000 TC ***Hybrid - 3 days office (either London or Manchester office) Leading financial services client is seeking a Senior Software Engineer and help shape their cybersecurity in a fast … across IAM, networking and compliance. Collaborate with Agile teams to deliver high-quality, secure software at scale. Key Skills: Strong Node.js/NestJS and REST API development experience. Skilled in AWS Build and evolve backend services that support login, MFA, and client authentication Proficient with IaC, CI/CD (CloudFormation ...

Senior Software Engineer (Backend) - Identity & Authentication AWS * TypeScript * Node.js (NestJS) * REST APIs * Auth0 * Transmit Security * GitHub * CloudFormation Contract - 12 months, upto £650/day inside IR35 ***Hybrid - 3 days office (either London or Manchester office) Leading financial services client is seeking a Senior Software Engineer and help shape their cybersecurity … across IAM, networking and compliance. Collaborate with Agile teams to deliver high-quality, secure software at scale. Key Skills: Strong Node.js/NestJS and REST API development experience. Skilled in AWS Build and evolve backend services that support login, MFA, and client authentication Proficient with IaC, CI/CD (CloudFormation ...

enhance an existing automation framework using SpecFlow, C#, Playwright, and SQL. Develop robust automated test suites for React-based UI and GraphQL/REST APIs. Conduct thorough manual and exploratory testing to validate business logic, financial calculations, and data workflows. Implement maintainable, scalable test automation aligned with CI/… Skills & Qualifications: 5+ years' experience in test automation with frameworks like SpecFlow and Playwright. Strong C#/.NET programming skills Experience testing GraphQL and REST APIs and building automated test suites. Solid SQL skills for data validation and workflow testing. Proficient in manual and exploratory testing methodologies. Familiarity with ...

from experienced engineers. What you'll do: Develop and optimise platform components in Python Write and tune SQL Server queries, views & stored procedures Build REST APIs for internal/external integrations Learn and contribute to event‐driven pipelines (e.g., Kafka/RabbitMQ) Apply IaC and contribute to CI/… GitHub/portfolio link welcome (not mandatory) Why join: Build high‐impact fintech systems that move money & markets Modern stack (Python, Kafka, SQL Server, REST, Azure, Salesforce) Professional training & certification support Clear growth path as the platform scales globally Eligibility: Right to work in the UK (sponsorship not available) Commutable ...

doing: Designing and developing enterprise-grade SaaS features across backend and frontend systems Building secure, scalable, and high-performing APIs and services (NestJS, GraphQL, REST) Creating data-driven dashboards and UIs with React, Next.js, and Chakra UI Translating product and design requirements into elegant, maintainable solutions Troubleshooting and optimising performance … 5+ years’ experience building enterprise SaaS products (ideally in cybersecurity or data-heavy environments) Strong backend development with TypeScript, NestJS, Sequelize ORM, GraphQL, REST APIs Frontend expertise with ReactJS, NextJS, Typescript, Chakra UI Experience with MySQL and NoSQL databases Familiarity with messaging/event-driven systems (Kafka) Ability to work ...

Experience with database backup, replication, recovery, and high-availability strategies Exposure to NoSQL technologies such as MongoDB Experience building or supporting ETL processes and REST API integrations Strong understanding of testing, monitoring, and alerting practices Clear communication skills and the ability to work effectively in a distributed team DESIRABLE EXPERIENCE … subject to required skills) your application to our client in conjunction with this vacancy only. KEY SKILLS PostgreSQL, Python, Database Engineering, Data Infrastructure, ETL, REST APIs, MongoDB, Cloud, GCP, Docker, Kubernetes, AI Platforms, Remote Engineering ...

improve how things are built. What You’ll Be Doing Building and maintaining production backend services in Go and Python Designing and implementing clean REST APIs Working with PostgreSQL, writing and optimising SQL queries Developing services in a containerised, microservices environment Integrating with third-party APIs and internal services Building … production backend services Solid experience with Golang, or strong willingness to learn Go Experience using Python for APIs, scripts, or data processing Experience building REST APIs Familiarity with microservices architectures Strong experience with relational databases, especially PostgreSQL Confident SQL query writing, with basic optimisation and indexing Experience integrating with third ...

with OIC Excellent communication and leadership skills Strong problem-solving and analytical skills Proven hands-on expertise designing and building integrations using OIC adapters, REST/SOAP APIs, XML, XSD, XSLT, and JSON, and file-based orchestrations Experience securing integrations via OCI Vault, certificates, and OAuth2 token Top 3 essential … Integration Cloud (OIC), Oracle Service Oriented Architecture (SOA), and Oracle Service Bus (OSB) Proven hands-on expertise designing and building integrations using OIC adapters, REST/SOAP APIs, XML, XSD, XSLT, and JSON, and file-based orchestrations. Experience securing integrations via OCI Vault, certificates, and OAuth2 tokens Solid understanding ...

Java Developer - Active SC, Java, REST Up to £420 per day (Inside IR35) London/Remote 6 months My client is an instantly recognisable Consultancy who are hiring a Java Developer with Active SC Clearance (Security Cleared), Java, ReactJS and NodeJS skills to work with a high profile end client. … NodeJS for web applications. Spring/Spring Boot development. Proficiency in Test Driven Development and design patterns for modular, reusable code. Knowledge of REST APIs, asynchronous messaging, and database integration. Familiarity with continuous delivery/integration processes. Ability to work collaboratively in an agile environment and on call when needed. ...

doing: Designing and developing enterprise-grade SaaS features across backend and frontend systems Building secure, scalable, and high-performing APIs and services (NestJS, GraphQL, REST) Creating data-driven dashboards and UIs with React, Next.js, and Chakra UI Translating product and design requirements into elegant, maintainable solutions Troubleshooting and optimising performance … 5+ years’ experience building enterprise SaaS products (ideally in cybersecurity or data-heavy environments) Strong backend development with TypeScript, NestJS, Sequelize ORM, GraphQL, REST APIs Frontend expertise with ReactJS, NextJS, Typescript, Chakra UI Experience with MySQL and NoSQL databases Familiarity with messaging/event-driven systems (Kafka) Ability to work ...

Salesforce UI architecture High competency in Salesforce data modelling, security, sharing rules and large data volume handling Strong experience with Salesforce integration patterns including REST/SOAP APIs, Platform Events, and Change Data Capture Proficiency with Salesforce DevOps processes including CI/CD, source-driven development and release management Proven … Java or Go is advantageous High level of understanding of architectural patterns and distributed system design principles Strong experience working with APIs (both REST and SOAP) High level of understanding of technical security and secure development methodologies within the Salesforce ecosystem Experience working in Agile, multi-team delivery environments Experience ...

builds and enhancements to current workstreams. Essential experience: Strong development background Oracle Integration Cloud Oracle Fusion Cloud Integration work with SOAP, REST, JSON OIC, Postman, Curl Oracle VBCS ERP and HCM integrations via OIC OAUTH, IAM, JWT GIT, XML, JSON, XSLT Desirable: Public cloud and security knowledge DevOps background Experience … release processes Understanding of secure development practices Interested? Please apply below. Oracle Integration Cloud, OIC, Oracle Fusion, Oracle ERP, HCM, VBCS, OCI, Integrations, REST, SOAP, JSON, SC Cleared, Inside IR35. ...

builds and enhancements to current workstreams. Essential experience: • Strong development background • Oracle Integration Cloud • Oracle Fusion Cloud • Integration work with SOAP, REST, JSON • OIC, Postman, Curl • Oracle VBCS • ERP and HCM integrations via OIC • OAUTH, IAM, JWT • GIT, XML, JSON, XSLT Desirable: • Public cloud and security knowledge • DevOps background • Experience … release processes • Understanding of secure development practices Interested? Please apply below. Oracle Integration Cloud, OIC, Oracle Fusion, Oracle ERP, HCM, VBCS, OCI, Integrations, REST, SOAP, JSON, SC Cleared, Inside IR35. ...