1 to 25 of 53 REST Jobs in Central London

Full Stack Developer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£45,000 - £65,000 per annum
trading environments Experience with WebSockets or SignalR for real-time communication Backend development experience with .NET (C#) and/or Python Strong understanding of REST APIs and microservices architecture Experience with message brokers (e.g. RabbitMQ or Kafka) Knowledge of caching technologies (e.g. Redis) Experience with Azure DevOps/CI/ ...

Senior FullStack Developer

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
architectures, and creating a reusable component library Experience with Telemetry and observability of front-end applications Back-end: Expertise in C# .NET Core , C#, REST APIs, Web APIs, and microservices-based development. Experience in transforming monolithic applications into composable microservices, or modular monoliths is a plus. Python (pyspark): Some hands ...

Principal Software Engineer

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Angular, or Vue) Strong backend development experience (e.g., Node.js, Java, Python, or Go) Proven experience designing and building scalable, distributed systems Strong experience with REST APIs, microservices architecture, and event-driven systems Cloud experience with Azure with knowledge of serverless and containerised architectures Solid understanding of DevOps practices, CI/ ...

Senior .Net Developer

Hiring Organisation
Lancesoft Ltd
Location
Westminster, Greater London, UK
experience with C# and .NET (.NET Core/.NET) Excellent Object Oriented Programming (OOP) skills and design principles Proven experience designing and implementing APIs (REST/JSON) Solid understanding of application architecture, performance, and scalability Experience with SQL databases (e.g. SQL Server) Familiarity with unit testing, integration testing ...

Principal Technical Lead

Hiring Organisation
RSSB
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Core code-first migrations and data modelling. Strong front-end engineering skills in React and TypeScript, including component architecture, state management, and integration with REST/SignalR backends. Solid understanding of event-driven architectures. Hands-on experience with PostgreSQL or comparable relational databases. Experience with API and application security. Practical ...

Full Stack Software Engineer

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
engineering roles, with a track record of building solutions end-to-end Experience deploying applications in cloud environments, preferably Microsoft Azure Strong experience in REST API design and OpenAPI standards Extensive experience working with databases, data platforms, and analytical tools Ability to research, propose, and implement solutions with minimal supervision ...

UI Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
enterprise-scale or modular applications. Deep knowledge of component-driven development, UI state management, layout systems, and SPA navigation. Strong experience working with REST APIs and .NET backends. Excellent command of C#, .NET Core 7, and asynchronous programming. Demonstrated ability to deliver pixel-perfect UIs from design specifications. Strong ...

Solutions Architect

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
team retros, sprint reviews, story-mapping, backlog refinement) helping the entire delivery team be the best that they can. Essential Skills: C# .NET Core, REST API Design and Development, API Management Document or No-SQL database solutions (particularly Elasticsearch) Messaging and microservices based architecture (Azure Service Bus, Azure Functions) Formal ...

Automation QA Analyst

Hiring Organisation
Vallum Associates
Location
City of London, London, United Kingdom
automation testing using Selenium/Playwright/Cypress Proficiency in programming languages such as Java, Python, or C# Experience with API testing (Postman, REST Assured, or similar) Knowledge of testing frameworks (TestNG, JUnit, Pytest, etc.) Familiarity with CI/CD tools (Jenkins, Azure DevOps, GitHub Actions) Good understanding of SDLC ...

Senior Java Developer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
/lift‐and‐shift) CI/CD & automation: Ansible, Chef, TeamCity Scripting (Python; legacy upgrades) Hybrid cloud exposure, infra coordination Messaging & integration (REST, Solace/streaming) Good‐to‐Have Skills Kubernetes & containerization Microservices modernization Deeper GCP/Anthos experience .NET/WPF familiarity Low‐latency/trading systems Post‐migration ...

IT Development Team Lead (Full Stack)

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
DevOps CI/CD processes, Service bus Architecture, Microservices, Functions, Web apps, IAC Experience with AI driven development tools such as Claude Experience developing REST API-driven mobile first web applications Experience of frontend application development, with a focus on React.js, Next.js and TypeScript Jira, Bitbucket, Git Flow, Confluence, Azure ...

Python Automation Engineer

Hiring Organisation
Tata Consultancy Services
Location
City of London, London, United Kingdom
Essential skills/knowledge/experience: Strong hands‐on experience with Python for test automation Proven experience using PyTest framework Experience in API automation (REST, JSON, Postman/Newman, requests, etc.) Good understanding of test design techniques, test data management, and reporting Experience with CI/CD tools such ...

Java Software Engineer

Hiring Organisation
Sanderson
Location
City of London, London, United Kingdom
This is a long-term, greenfield initiative with strong technical challenges and a modern engineering environment. Tech Stack Java (11+)/Spring Boot Microservices & REST APIs AWS (preferred) Kafka/Event-driven architecture SQL/Relational databases Docker/Kubernetes Nice to have: TypeScript, Camunda ...

Python Full-Stack Developer

Hiring Organisation
Crisil
Location
City of London, London, United Kingdom
Azure DevOps. Databases : SQL Server, Oracle, PostgreSQL, Delta Lake Big Data : Apache Spark Version Control : GitHub, Git, Azure DevOps Visualization : Power BI & Integration with REST APIs for custom dashboards. Data Integration & Workflow Orchestration : Azure Data Factory, Databricks Workflows ...

Specialised Engineer

Hiring Organisation
Vallum Associates
Location
City of London, London, United Kingdom
maintain HCL Commerce/WebSphere Commerce Suite components and extensions. Build and enhance backend services using Java, J2EE, Spring/Spring Boot, and REST APIs Ensure solutions meet scalability, performance, availability, and security standards Diagnose and resolve complex issues across application, integration, and infrastructure layer Perform root cause analysis ...

Lead .NET Engineer/Architect

Hiring Organisation
Tria
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £100000/annum
lead roles, with strong hands-on .NET/C# delivery. Demonstrable experience leading architecture decisions on production-grade systems, not just contributing to them. REST API design and integration experience at scale, including defining and governing integration standards. Microsoft SQL Server: schema design, query optimisation, and working knowledge of Always ...

Senior Full Stack Engineer

Hiring Organisation
Access Computer Consulting
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £440/day
React, Kubernetes & Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development (REST/JSON), including versioning and backward compatibility. Experience with UI testing, component testing, and front end build tooling. Experience in CI/CD pipelines, GitOps ...

Contract Senior Software Engineer (Java or Python)

Hiring Organisation
SoCode Recruitment
Location
City of London, London, United Kingdom
critically evaluate AI-generated code for correctness, security, and financial accuracy Desirable, but no essential: Experience with Apache Airflow or similar workflow schedulers REST or GraphQL API design experience Knowledge of fixed income, FX, or derivatives products and associated P&L/risk methodologies ...

Principal Software Engineer Java SpringBoot AWS

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
have strong Java development skills including multi-threading and concurrency You have experience with SpringBoot and microservices environments You have a good knowledge of REST APIs You have a good understanding of AWS You have a thorough understanding of software development and Computer Science fundamentals such as Object Oriented Programming ...

Tools Engineer

Hiring Organisation
Sing King
Location
City of London, London, United Kingdom
with the Senior Leadership you’ll define, scope, and plan improvements, new features, anticipating business needs before they happen. Maintain and develop our internal REST API that centralises business logic for the CMS, tools, asset management, data validation, and publishing of Karaoke content. Transform the CMS frontend to deliver ...

Software Engineer Middle/Back Office Asset Manager (Contract)

Hiring Organisation
Alexander Ash Consulting Limited
Location
Central London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £700 to £800 per day
Claude, Cursor, GitHub Copilot) with significant examples of delivery improvement AWS (S3, Lambda, EC2, Glue), Snowflake, Git, CI/CD, Datadog, MS SQL Server, REST, GraphQL, Airflow (as many as possible) Degree educated or higher in a relevant technical discipline from a leading university This is a £650-700/ ...

Sharepoint Administrator

Hiring Organisation
ALFA TECHNOLOGY RECRUITMENT LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
doing Leading migration from SharePoint 2016 on-prem to SharePoint SE and SharePoint Online Rebuilding legacy web parts using SPFx (TypeScript, React, REST APIs, Microsoft Graph) Administering both on-prem and cloud environments patching, upgrades, governance, DR Configuring Business Connectivity Services and External Content Types Designing and maintaining the enterprise ...

Scala Developer (Remote)

Hiring Organisation
Stealth iT Consulting
Location
City of London, London, United Kingdom
HTTP filters. Solid understanding of functional programming concepts and idiomatic Scala (e.g., immutability, monads, cats/Scalaz familiarity advantageous). Experience designing and consuming REST APIs, JSON validation/serialization (Play JSON, Circe). Experience with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimisation. ...

Scala Developer - Remote Contract - £450 Outside IR35

Hiring Organisation
Stealth iT Consulting
Location
City of London, London, United Kingdom
Strong understanding of functional programming concepts and idiomatic Scala (immutability, monads; familiarity with Cats or Scalaz is a plus). Experience designing and consuming REST APIs , including JSON validation/serialization (Play JSON, Circe). Proficiency with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query ...

Java Engineer – Buyside FX Trading Systems

Hiring Organisation
Albert Bow
Location
City of London, London, United Kingdom
work closely with a Senior Java Engineer and Lead Quant, focused on execution and delivery. Must‐Have Skills Strong Java Spring Boot REST API development Solid understanding of performance, reliability, and production systems AWS (EC2, S3) Docker/Kubernetes Terraform CI/CD pipelines Prometheus & Grafana Low‐latency or performance ...