26 to 46 of 46 REST Jobs in Central London

Full-Time .Net MAUI Mobile App Developer (iOS & Android) — Remote (South Asia)

Hiring Organisation
Astera
Location
Central London / West End, London, United Kingdom
.NET MAUI strongly preferred Proven experience implementing apps directly from Figma Strong mobile UI/UX implementation skills (spacing, typography, layout, interaction) Experience with REST APIs, auth flows, and state management Comfortable delivering apps that feel fast, clean, and well-finished 👉 We’re comfortable with AI-assisted development tools (e.g. ...

Head of Quality Engineering

Hiring Organisation
Infoplus Technologies UK Ltd
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 650 - 700 Daily
Technical Expertise (Exceptional Level) 2025+ years in QE engineering, transformation, and automation leadership. Mastery of: o Playwright, Appium, Selenium, Cypress, Java o API Automation (REST Assured, Karate, Postman) o Performance (JMeter, LoadRunner) o Cloud native testing (Azure, AWS, GCP) o Test orchestration, CI/CD pipelines o TDM, environment strategy ...

Workflow Developer

Hiring Organisation
Lynx Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
across core business systems. Create and optimize SQL queries, stored procedures, and data routines to support workflow logic and reporting. Develop integrations using APIs, REST services, and approved low-code or integration tools. Gather, analyse, and translate business requirements into technical specifications with clear acceptance criteria. Maintain technical documentation ...

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 ...

Backend Engineer

Hiring Organisation
Conquer AI
Location
City of London, London, United Kingdom
TypeScript/Node) AWS hands-on experience: Bedrock, Secrets Manager, Lambda Production LLM/AI integration experience: evals, prompt engineering, handling unpredictable model behaviour REST API fluency: you've integrated messy third-party APIs and made them behave Experience building Slack bots or Block Kit interfaces is a strong plus ...

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. ...

Lead Full Stack Developer

Hiring Organisation
G.R.E. Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
while defining technical standards, scalability strategy, and product direction across the technical ecosystem. In this role you will: Own and evolve a Laravel-based REST API Develop and maintain a Flutter mobile application (iOS & Android) Design and implement secure, multi-tenant architecture Establish clean coding standards and engineering best practices ...

Senior Software Engineer

Hiring Organisation
TogetherWeTech
Location
City of London, London, United Kingdom
solutions. Their environment is Golang (Must have experience) Lead the architecture and design of complex systems, ensuring scalability, reliability, and performance. Strong expertise in REST API, OO and functional design principles, design patterns Mentor and provide technical guidance to junior engineers, fostering a culture of continuous learning and growth. ...

Platform Security Architect (French Speaking)

Hiring Organisation
Anaplan
Location
City of London, London, United Kingdom
Technical certifications are highly regarded. ·Strong collaborator, problem-solving, and people skills. ·Experience with data integrations/architecture (SAP S/4HANA, ETL, and REST API) ·Similar roles (Level 1/Level 2 Technical Support, Post-Sales InfoSec Consulting) ·Willingness to travel occasionally (as needed). ·A bachelor’s degree ...

CRM/CPQ Junior Administrator - Revenue Cloud

Hiring Organisation
Divalentinecalver Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
platform scalability as additional countries/entities are onboarded Identify technical debt and plan remediation activities. Must have a strong understanding of integration patterns (REST, SOAP, event-driven, middleware) and a proficiency in APEX, Lightning Web Components, and Salesforce APIs. Some experience in leading technical teams and mentoring developers.Occasional travel. ...

Identity & Access Management Architect (Entra ID / Azure)

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 ...

iOS/Frontend Developer Intern

Hiring Organisation
NetMind.AI
Location
City of London, London, United Kingdom
hear from you. Build and ship user‐facing features in our iOS app using Swift and SwiftUI (with occasional UIKit where needed) Work with REST APIs to display personalised health and longevity insights, and handle local data storage (e.g. UserDefaults, basic persistence). Fix bugs, improve performance, and help keep ...

Python Developer (high-throughput/low-latency)

Hiring Organisation
Ascendion
Location
City of London, London, United Kingdom
trading platforms, financial systems, or other large-scale enterprise applications. Key Responsibilities: Design, develop, and maintain scalable backend services using Python Build and enhance REST APIs and microservices Work on high-throughput, low-latency systems Deploy and manage applications on AWS cloud infrastructure Collaborate with cross-functional teams including DevOps … trading platforms OR complex enterprise systems Hands-on experience with AWS (compute, storage, networking, security) Experience building high-performance, scalable systems Strong knowledge of REST APIs, microservices, and distributed systems Experience with SQL and/or NoSQL databases Familiarity with data querying tools such as Athena Understanding of CI/ ...

Magento Developer

Hiring Organisation
Project Recruit
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
controls, and data protection practices Integration leadership: Architect/oversee robust integrations with ERPs, CRMs, payment/shipping providers, search, and marketing platforms (via REST/GraphQL/webhooks/Middleware) DevOps & environments: Champion CI/CD, branching strategy, code quality gates, containerized environments (Docker), infra configuration (NGINX/Apache … trade-offs, and timelines clearly Key Requirements: Expert in Magento 2 architecture & custom development -deep knowledge of modules, DI, plugins, observers, service contracts, APIs (REST/GraphQL), multi store setups, and performance tuning Strong Back End & Front End capabilities - PHP 7/8, MySQL, Composer, MVC, HTML/ ...

Java Architect (with Capital Markets)

Hiring Organisation
DXC Technology
Location
City of London, London, United Kingdom
Kafka. Expertise in optimizing SQL queries on PostgreSQL databases. Strong experience with multithreading, data structures, and concurrency scenarios. Proficient in using REST APIs, XML, JAXB, and JSON in creating layered systems. Experience with AWS Services (AWS Lambda, AWS CloudWatch, API Gateway, ECS, ECR, SQS, SNS). Familiarity with Open … APIs, Agentic AI – Crew/LangChain/RAG/AutoGen/NLP/Java/Python/REST/Telemetry/Security/Auditability. Domain knowledge in client onboarding, KYC, and regulatory workflows, with a deep understanding of the client onboarding lifecycle: initiation, due diligence, approvals, legal entity structuring ...

Intelligent Automation Engineer

Hiring Organisation
Rathbones Group Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
Platform delivery ImplementPower Automate(cloud/desktop) flows andPower Appswhere appropriate; create reusable connectors/components; apply DLP policies. Systems integration Integrate with APIs (REST/JSON), SharePoint/Teams/Outlook, CRM, data platforms and event triggers; handle identity, permissions and audit. Quality, reliability & support Write testable solutions, instrument … Outlook; Graph APIs/connectors; permissions & governance. Power PlatformPower Automate(cloud/desktop),Power Apps(canvas/model-driven desirable), DLP, custom connectors. Integration REST/JSON, webhooks, OAuth/Entra ID, basicSQL; event-driven patterns; error/exception strategies. Dev fundamentals Git/Azure DevOps, CI/CD, environment ...

Oracle Fusion Lead Data Architect

Hiring Organisation
DCV Technologies Limited
Location
Central London, London, United Kingdom
Employment Type
Contract
team and implementation partners to map legacy data to Fusion data structures Lead data conversion activities using tool like Oracle FBDI, ADFdi, HDL and REST APIs Ensure data quality, integrity and compliance with governance policies and regulatory standards Collaborate with enterprise architects, DBAs and infrastructure teams to optimize data performance … Oracle Fusion data model, including ESS jobs, interfaces and seeded tables Hands-on experience with FDBI, HDL, BIP, OTBI, Snart View, OIC and REST/SOAP APIs Proven experience in large-scale data migration projects Expertise in SAL, PL/SQL and Oracle database technologies Strong knowledge of data governance ...

SharePoint 365 Developer

Hiring Organisation
Pontoon
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £415/day
right in! Ideal candidates will possess: Proven experience in SharePoint development (preferably SharePoint Online). Strong knowledge of SharePoint Framework (SPFx), REST APIs, and Microsoft Power Platform. Familiarity with JavaScript, HTML, CSS, and related web technologies. Excellent communication skills to engage with both technical and non-technical stakeholders. A team … generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention. Adecco is a disability-confident employer. ...

Software Engineer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
Sports Trading What you’ll tackle Translate data-flow headaches into buildable tech projects, managing data pipelines Python engineering to stand-up analytics services, REST APIs and lightweight front-ends. Data ingestion (SQL, files, feeds), business logic, web/UI, CI pipelines and Linux deployment. White-board with quants … need 1 + years building production-grade Python systems for data-heavy businesses; comfortable with tests, version control and optimisation. Confident SQL , exposure to REST and messaging (Rabbit, Kafka, etc.), and enough Linux to troubleshoot on the command line. Solid grounding in financial products & risk metrics —equities, bonds and derivatives ...

Lead ServiceNow Architect

Hiring Organisation
Cognizant
Location
City of London, London, United Kingdom
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/ ...

ServiceNow Developer - IRM Specialist

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£500 - £560 per day
technical skills to configure and administer ServiceNow IRM/GRC modules, including Flow Designer, ACLs, scripting (Glide), and CMDB relationships. Integrate risk data via REST APIs, MID Server, and data imports, ensuring seamless data flow and automation. What you'll bring: Proven experience configuring and managing ServiceNow IRM/… platform, including scripting, Flow Designer, and ACLs. Experience with risk registers, scoring models, control frameworks, and policy workflows. Familiarity with integration methods such as REST APIs and data imports. Ability to partner effectively with business stakeholders and translate requirements into technical solutions. This role offers an exciting chance to contribute ...