1 to 25 of 38 Permanent REST Jobs in Central London

Software Developer / Software Engineer - (Python / API / AWS)

Hiring Organisation
GIOS Technology
Location
City of London, London, United Kingdom
Python/Angular 6/Java/JavaScript/JSON/CI/CD tools such as Bamboo/Microservices and API development/REST API integrations/Event-driven architecture/AWS and Azure cloud platforms/AWS deployment models including EC2, Docker, and Pivotal Cloud Foundry (JVM) Experience ...

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/ ...

Technical Lead

Hiring Organisation
Synergize Consulting
Location
City of London, London, United Kingdom
enterprise solutions while collaborating closely with cross-functional teams across the full software development lifecycle. Technical Skills Java Angular 6 Microservices and API development REST API integration (OpenAPI preferred) Event-driven architecture Hands-on cloud experience across AWS and Azure, including serverless deployments Experience with AWS services and deployment approaches ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Full Stack Developer (C#)

Hiring Organisation
Ibex Talent Solutions
Location
City of London, London, United Kingdom
Build & maintain secure, scalable backend services using .NET (Core 6/8+) + C# Develop frontend features with JavaScript + React (REST/GraphQL APIs) Own CI/CD pipelines (GitHub Actions, GitLab CI, or Azure DevOps) Integrate AI capabilities – e.g., message routing, anomaly detection, compliance checks Collaborate ...

.NET Developer (CMS / Charity) – Remote (UK)

Hiring Organisation
La Fosse
Location
Central London / West End, London, United Kingdom
doing Designing, building and supporting applications using .NET/C#, Azure and modern web technologies Developing and maintaining APIs and system integrations (REST, middleware, third-party systems) Supporting and improving CMS-driven websites (ideally Umbraco) and public-facing digital platforms Helping modernise legacy applications and support system transition and replacement ...

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 ...

Python Developer

Hiring Organisation
DNS Info Ltd
Location
City of London, London, United Kingdom
security of backend systems. Databricks & Data Engineering Develop ETL pipelines and workflows using PySpark on Databricks. Work with Delta Lake, Unity Catalog, and Databricks REST APIs. Optimize queries and pipelines for cost efficiency in cloud environments (Azure/AWS). SQL Database Management Write and optimize complex SQL queries. Manage ...

Lead Python Engineer – AI & Data

Hiring Organisation
RAW Search
Location
City of London, London, United Kingdom
across several Python services while remaining highly hands‐on. The opportunity You will: Lead the design and development of Python‐based services and REST APIs (Django or similar) used across multiple AI and data use cases. Own and manage the code repository: structure, branching strategy, pull requests, code reviews ...

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 ...

Microsoft 365 Architect

Hiring Organisation
Coltech
Location
City of London, London, United Kingdom
Microsoft 365 Architect or Senior Technical Lead Deep knowledge of Exchange Online, SharePoint Online, Teams, Intune, and Power Platform Experience with Microsoft Graph, REST APIs, and M365 integrations Hands-on experience with Copilot Studio and enterprise AI solutions Strong background in migrations (SharePoint, email, tenant-to-tenant) Excellent communication ...

KDB Developer - Outside IR35 - Up to £800 per day

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
historical data pipelines (tick data capture, ingestion, querying, and distribution systems) Proficiency in additional languages such as Python or Java, including API integration (REST, messaging frameworks) Familiarity with Linux-based environments, scripting, and networking concepts (process management, sockets, IPC) Experience with cloud platforms (e.g., AWS, GCP) and containerisation tools (Docker ...

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 - £400 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 ...

Agentic AI Architect – Insurance Domain

Hiring Organisation
MANNING SERVICES LIMITED
Location
City of London, London, United Kingdom
retrieval optimization; RAG design, grounding strategies, context management Tool Access & Integration - MCP (Model Context Protocol) architecture and tool design; API design (FastAPI/REST/microservices); Integration with enterprise systems and third-party APIs AI Safety & Governance - NVIDIA NeMo Guardrails;Microsoft Presidio (PII detection/masking); Guardrails for prompt injection ...

Lead Fullstack Engineer

Hiring Organisation
Immersum
Location
City of London, London, United Kingdom
modern frontend framework (React, Vue, Next.js) Experience designing and delivering scalable, cloud-based systems (AWS, Azure or GCP) Strong understanding of API design (REST/GraphQL), databases and system architecture Experience with CI/CD, infrastructure as code (e.g. Terraform) and automated testing Ability to design for non-functional requirements ...

Senior Software Engineer – AI / Agentic Systems

Hiring Organisation
MA (Montreal Associates)
Location
City of London, London, United Kingdom
building and scaling distributed systems or cloud-native platforms (AWS preferred) Experience delivering end-to-end solutions in production environments Technical Skills API development ( REST/GraphQL ) and third-party integrations Strong knowledge of databases (SQL & NoSQL) Experience with event-driven systems/messaging (Kafka, RabbitMQ, SQS, etc.) Solid understanding ...

AI Forward Deployed Engineer - Contract - Inside IR35

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
/Experience: • Strong Python + TypeScript engineering background • Experience building LLM applications in production • Claude/OpenAI APIs, prompting, tool use & structured outputs • Azure, REST APIs, webhooks, SSO/Entra ID • Exposure to agentic systems, orchestration frameworks, evals or observability • Comfortable working directly with business stakeholders 📍 London – Hybrid ...

Guidewire Technical Architect

Hiring Organisation
eTeam
Location
City of London, London, United Kingdom
Guidewire Data Model • Customization & Integration: o Sound knowledge of Guidewire xCenters (version 10.x & SaaS) customization and integration (Intra and Inter system integration) using REST and SOAP APIs • Technical Skills: o Experience with batch processes, Guidewire Messaging framework, and OOTB plugins o Familiarity with Infra concepts and deployment architecture ...

Backend Software Engineer (Remote, UK)

Hiring Organisation
esenda
Location
City of London, London, United Kingdom
hands-on use of Flask (or similar frameworks). Solid understanding of Postgres (schemas, migrations, query performance, transactions). Experience designing and maintaining APIs (REST; event-driven experience is a plus). Comfortable shipping in cloud environments—ideally AWS—and working with modern CI/CD pipelines. A strong quality ...