26 to 50 of 52 REST Jobs in Central London

Senior React Native Engineer - London Hybrid : £100k

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
What You Bring 5+ years’ experience delivering production mobile apps for iOS and Android. Strong expertise with iOS/Android SDKs, remote data handling (REST/JSON) and third-party integrations. Solid understanding of mobile architecture, trends and best practices across the entire development lifecycle. Clear, confident communication skills — written ...

Azure AI Architect

Hiring Organisation
Infoplus Technologies UK Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
controls) and completing architecture risk assessments. Proficiency in Python and/or C# for service integration, evaluation tooling, and adapters; solid understanding of REST APIs, JSON, and async patterns. Mode of working: Hybrid(3 days) Work locations: London, Tunbridge wells, Ipswich, Bolton ...

Full Stack Developer

Hiring Organisation
Tate Recruitment
Location
City of London, London, United Kingdom
.Net - this will be a small part of the role but necessary • Experience working with component based development and design systems • Strong understanding of REST APIs, unit testing and Git • Experience with SQL, EF Core or Dapper • Experience working with UX and design tools such as Figma or Adobe ...

Lead Software Engineer, React Native

Hiring Organisation
Travelex
Location
City of London, London, United Kingdom
shipping complex mobile applications to production Comfortable mentoring peers and supporting technical decision-making. Solid understanding of API integration (GraphQL and/or REST). Strong communication skills — able to work effectively with engineers, product managers, and designers. Experience with native modules and bridging in React Native Familiarity with state ...

Java Developer

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
Soho, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
experienced Senior Java Developer, predominantly on version 21 with PostGres Database and Spring Boot, to help develop their rapidly growing application, by building REST APIs, Microservices and evolving their current financial systems. In return, you’ll get a competitive salary of up to £90k, and sign-on stock option ...

Lead Java Developer

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
Soho, London, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 per annum
experienced Senior Java Developer, predominantly on version 21 with PostGres Database and Spring Boot, to help develop their rapidly growing application, by building REST APIs, Microservices and evolving their current financial systems. In return, you’ll get a competitive salary of up to £140k, and sign-on stock option ...

Java Developer | London/Hybrid | £100,000 - £140,000 | Growing Fintech

Hiring Organisation
Opus Recruitment Solutions
Location
City of London, London, United Kingdom
scalable, secure backend systems. A lot of what you will be working on will be working on greenfield projects which will be covering building REST API,s and Microservices all with a modern Java stack and a TDD approach. This company like Developers who want to take ownership of what ...

ServiceNow Platform Developer

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
Build role-based interfaces using UI Builder and Service Portal Deliver intuitive dashboards and user journeys Integrations & Data Integrate ServiceNow with external systems using REST/SOAP APIs and IntegrationHub Support data migration and ensure data integrity across platforms Collaboration & Delivery Work alongside architects, consultants, IT, HR and customer teams ...

Back End Developer

Hiring Organisation
Apex Systems
Location
City of London, London, United Kingdom
/Remote : Hybrid – 3 days per week Duration: 1 year + option to extend Job Description: Top Must-Haves: Python Postgres SQL API Developent (REST) Good CS and OOP fundamentals. Experience with SDLC and design of new greenfield solutions Responsibilities: • Design sophisticated backend components, services, platforms, and Restful APIs ...

Data Specialist

Hiring Organisation
Alexander Edward James Consulting Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
optimisation techniques Desirable Cloud-based data and analytics services Data visualisation tools Machine learning platforms Version control and DevOps practices Experience working with REST APIs Personal Attributes Essential High personal and professional integrity with a strong drive for excellence A collaborative team player with strong interpersonal and communication skills Ability ...

Palantir Consultant

Hiring Organisation
Staffworx Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
/stream processing basics, data modelling, data quality and governance. Experience (or strong interest) in integrating Foundry with: Enterprise identity (SSO, SAML/OIDC) REST APIs and services Existing data platforms or warehouses Familiarity with modern software engineering practices: Version control and code review Automated testing CI/CD pipelines ...

Associate Instructor

Hiring Organisation
Learning Tree
Location
City of London, London, United Kingdom
Employment Type
Part Time
Intelligence, Operational Research or related field Extensive professional experience across: AI, data science and analytics Software design and full lifecycle development (.NET, Python, Azure, REST) Data modelling, Simulation and mathematical methods Enterprise consulting across public and private sector Proven experience delivering complex project such as: Decision-support systems High-integrity ...

Senior Exchange Connectivity Engineer | Crypto

Hiring Organisation
Selby Jennings
Location
City of London, London, United Kingdom
heart of their trading infrastructure, focusing on ultra-reliable, low-latency integrations with major crypto exchanges. Key Responsibilities Design and implement exchange connectivity modules (REST, WebSocket, FIX, proprietary APIs). Optimize order entry, market data ingestion, and account management for performance and reliability. Contribute to a fault-tolerant, scalable connectivity ...

Salesforce Developer

Hiring Organisation
Quinnox Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£75,000
Customize standard and custom Salesforce objects, fields, layouts, workflows, and validation rules Develop and maintain Apex classes, triggers, and test classes Implement integrations using REST/SOAP APIs Participate in requirement gathering and solution design with business stakeholders Perform code reviews and ensure adherence to Salesforce best practices Deploy changes ...

Salesforce Senior Developer

Hiring Organisation
Access Computer Consulting
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £500/day
governor limits and performance optimisation principles for efficient and scalable applications for a large active user base. Expertise in large-scale integration using SOAP, REST, Streaming (including Lightning Events), and Metadata APIs, facilitating the seamless connection of Salesforce with other systems. Please apply ASAP to find out more. ...

Dynamics 365 Architect

Hiring Organisation
Norton Blake
Location
City of London, London, United Kingdom
solution architecture and technical design for Dynamics 365 CRM, including Customer Insights, Customer Service, and Sales Architect enterprise-grade integration patterns across Azure, Dataverse, REST APIs, ESB/middleware, and external systems Design and optimize Customer Insights ingestion pipelines, unification rules, segmentation models, and predictive analytics Define CRM data models ...

IAM Engineer – Privileged Access & Secrets Management

Hiring Organisation
Levy Global
Location
City of London, London, United Kingdom
with real ownership Nice to have Exposure to secrets management concepts or platforms Cloud experience (AWS and/or Azure) Scripting or automation (PowerShell, REST APIs, etc. ...

Application Support Engineer – Elite Systematic Trading Firm - Prop Trading - Market Leading Compensation - Hybrid - London

Hiring Organisation
Mondrian Alpha
Location
City of London, London, United Kingdom
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 ...

Lead Software Engineer

Hiring Organisation
Durlston Partners
Location
City of London, London, United Kingdom
ES6+), CSS, and SCSS Strong understanding of e-commerce fundamentals, including checkout flows, product pages, and conversion optimisation Experience with the Shopify ecosystem, APIs (REST/GraphQL), metafields, and third-party integrations Experience migrating from a custom tech stack to Shopify Performance-focused mindset, with attention to site speed ...

Technical Partner Specialist (Remote - Europe-based)

Hiring Organisation
Stream
Location
Central London / West End, London, United Kingdom
technical, partner-facing role (integrations, solutions engineering, technical support, developer support, technical account management, etc.). Strong API fluency - comfortable working with REST APIs, webhooks, JSON payloads, authentication, and environments. Ability to read API documentation, diagnose integration issues, and clearly explain technical concepts to technical and non-technical stakeholders. Strong ...

Identity & Access Management Architect

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
authentication/SSO standards (OIDC, SAML, OAuth, Kerberos, LDAP). - Experience with RBAC, entitlement management, and automated provisioning/deprovisioning. - Skilled in PowerShell, REST APIs, and identity automation. - Familiar with micro-segmentation, NDR, and network-IAM interplay. - Experience with infrastructure hardening and monitoring across hybrid environments. - Knowledge of Azure Policy ...

ServiceNow Solution Architect

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£400 - £500 per day
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 ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
Central London, London, United Kingdom
Employment Type
Permanent
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 ...

Mulesoft Architect

Hiring Organisation
167 Solutions Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Process, Experience APIs) Collaborate with solution architects, product owners, and business stakeholders to define integration requirements Develop and maintain integrations using Anypoint Studio , DataWeave , REST/SOAP APIs Configure and manage deployments across CloudHub and/or Runtime Fabric Implement security, governance, and API management best practices Support CI/… environments Proven expertise with MuleSoft Anypoint Platform (Studio, API Manager, Runtime Manager) Solid understanding of API-led connectivity and enterprise integration patterns Experience with REST, SOAP, RAML/OpenAPI, JSON, XML Strong DataWeave development and transformation experience Familiarity with CI/CD pipelines and cloud deployment models Ability to manage ...

Oracle Developer

Hiring Organisation
Invitise Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £650 per day
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. ...