1 to 25 of 54 REST Jobs in the City of London

Fullstack Developer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
Grid Real-time communication using WebSockets or SignalR Strong experience building real-time trading or financial applications Back End C# .NET 8 Python REST APIs/Web APIs Microservices Architecture Messaging & Caching RabbitMQ Redis DevOps & Cloud Azure DevOps Git/Repos CI/CD Pipelines Azure and/ ...

Lead Software Engineer- Tax & Legal Technology –108720

Hiring Organisation
KPMG UK
Location
City of London, London, United Kingdom
languages such has C# or Java Enterprise Expertise : Expertise in software design patterns, clean code, and clean architecture principles & Knowledge of how to build REST APIs and have experience of messaging. Data Modelling: Worked with defining data models and interacting with database Proven Track Record: Built software that includes user ...

Java + CloudNative

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
ReactJS. Cloud & Serverless: AWS Lambda, AWS Cloud Services, Kubernetes. Additional Technical & Functional Competencies Frontend Architecture: TypeScript, JavaScript (ES6+), Redux/Context API, HTML5, CSS3, REST/gRPC integration. Streaming & Messaging: Apache Kafka, Apache Flink. APIs & Protocols: RESTful web services, gRPC, JSON, Protocol Buffers. Core Computer Science: Strong mastery of data ...

C# .NET Developer

Hiring Organisation
N P Associates
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £80,000 per annum
Experience with Microsoft Azure (App Services, Functions, Storage, Entra ID). Experience with Azure DevOps and CI/CD pipelines. Experience with REST APIs and third-party integrations. Experience with Blazor or modern web frameworks. Experience with AI-assisted development tools and AI integration within business applications. Experience of working ...

Software Development Manager

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
technical foundation in the Microsoft stack, including the .NET framework (versions .NET Core, 8 and beyond), SQL Server, and microservices architectures. Familiarity with microservices, REST APIs, Docker, Redis, and cloud platforms (such as AWS or Azure) is essential. You’ll also be comfortable working in a DevOps-driven culture, using ...

Automation Test Engineer

Hiring Organisation
Accenture
Location
City of London, London, United Kingdom
tools, self-healing automation, LLM-assisted scripting or debugging Independence: Ability to manage workstreams and collaborate effectively with minimal supervision API Testing: Experience testing REST APIs using tools like Postman or automation frameworks Desirable Skills (The Competitive Edge) Cloud Proficiency: Experience with AWS or GCP (e.g., S3, EC2, Lambda ...

Senior AI Engineer

Hiring Organisation
Aimtech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
requires onsite attendance in Central London 23 days per week. Technical Skills C#, ASP.NET Core, Entity Framework Python, FastAPI JavaScript, TypeScript React or Angular REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL and vector databases Azure App Services, Azure Functions, API Management Docker, Kubernetes (AKS) Azure DevOps, Git repositories … applications using Microsoft Azure Strong front-end development experience with React, Angular, JavaScript, and TypeScript Strong back-end development experience with ASP.NET Core, Python, REST APIs, and microservices architecture Experience building and integrating enterprise APIs and third-party services Experience working with both relational and non-relational databases Experience integrating ...

Senior Data Privacy & BigID Consultant

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Purview) Identity & Access Management basics (IAM, RBAC) Encryption, tokenization, and data masking techniques Scripting & Automation Python/Bash for automation and data profiling scripts REST API integration and JSON/XML data handling QUALIFICATIONS Experience 7+ years in data governance, privacy, or information security 4+ years in a client-facing ...

Camunda Architect / Lead Architect (Camunda 8 Preferred)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Strong background in: microservices architecture event-driven systems distributed systems Strong backend engineering experience using Java/Spring Boot or equivalent Experience working with: REST APIs Kafka/RabbitMQ/messaging systems Docker Kubernetes cloud-native deployments Strong understanding of security, scalability, resilience, and reliability principles Strong communication and stakeholder ...

Senior C# Engineer .NET 9, AWS Lambda, SQS, SNS Outside IR35

Hiring Organisation
Smart Sourcer Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £700 to £800 per day
What Youll Bring: Senior/Staff-level backend mastery in C# and .NET 8/9 , with the ability to architect and lead distributed REST microservices at scale. Strong authority in AWS serverless engineering: Lambda-first mindset, hands-on experience with API Gateway, SQS, Step Functions, EventBridge and IAM. Deep ...

BMC Helix Solution Architect

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £775/day Negotiable based on experience
certifications (Helix ITSM, Remedy, Discovery or Digital Workplace). Experience with Azure, AWS or hybrid cloud environments. Scripting and automation experience (Python, PowerShell, REST APIs or orchestration tools). Experience integrating BMC Helix with monitoring, security or DevOps platforms. Familiarity with Agile, DevOps and CI/CD delivery practices. Experience ...

ServiceNow Technical Architect

Hiring Organisation
Anson McCade
Location
City of London, London, United Kingdom
developing ServiceNow technical teams. Strong experience implementing technical governance, architecture reviews and coding standards. Advanced JavaScript development and scripting expertise. Strong knowledge of REST APIs, SOAP Web Services and enterprise integrations. SQL and integration design experience. Experience integrating ServiceNow with AWS, Microsoft Azure and/or Google Cloud Platform. Experience ...

ServiceNow Architect

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
developing ServiceNow technical teams. Strong experience implementing technical governance, architecture reviews and coding standards. Advanced JavaScript development and scripting expertise. Strong knowledge of REST APIs, SOAP Web Services and enterprise integrations. SQL and integration design experience. Experience integrating ServiceNow with AWS, Microsoft Azure and/or Google Cloud Platform. Experience ...

Principal Software Engineer Java Spring Boot AWS

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
strong Java development skills including multi-threading and concurrency You have experience with Spring Boot 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 ...

Senior Software Engineer

Hiring Organisation
OB Collective
Location
City of London, London, United Kingdom
building and reasoning about concurrent, fault-tolerant services Experience with data pipelines — ingestion, transformation, lineage, streaming and batch Solid API and structured-data fluency: REST/gRPC, JSON/Avro/Protobuf Sound CI/CD and testing discipline — correctness matters in high-assurance work Self-directing: able to take ...

Integration Specialist - Active SC, Azure Integration & PaaS

Hiring Organisation
Hays Technology
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £465/day Up to £465pd (Inside IR35)
Clearance. Experience migrating services from Azure IaaS to Azure PaaS. Knowledge of API-led, event-driven and messaging-based integration patterns. Experience with REST APIs, JSON, XML and secure integrations. Strong understanding of Azure networking, Entra ID, managed identities and Key Vault. Experience with Azure DevOps, CI/CD pipelines ...

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

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 ...

C# Developer

Hiring Organisation
Impellam Group
Location
City of London, London, United Kingdom
Required Skills & Experience Essential Expert-level development experience in C#/.NET Strong experience with SQL Server Proven experience working with service-based architectures (REST, gRPC, web technologies) Solid understanding of asynchronous programming and multithreading Experience with messaging middleware (e.g., IBM MQ or similar) Experience working with front office, trading ...

Senior GenAI Architect for Cloud-Native AI Solutions

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
experience with AI-assisted development tools Strong knowledge of cloud AI and ML platforms and associated architecture patterns Experience designing and managing APIs including REST and GraphQL Strong understanding of microservices and serverless architectures Practical experience with DevOps and MLOps practices including CI/CD pipelines Knowledge of security frameworks ...

Network Automation Architect

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £740/day
work collaboratively with various teams. Essential Skills: Cisco NX OS (VXLAN BGP EVPN, vPC, SNMPv3, TACACS+). Python for production-quality automation and REST API integration. GitHub/GitLab experience, including self-hosted runner configuration. YAML and JSON data handling. Red Hat Ansible Automation Platform. Experience producing HLD/ ...

React.js UI Developer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript Real-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs State Management & Programming: Solid experience with state management libraries (e.g., Redux) and reactive programming paradigms Architecture: Strong understanding of micro-frontends and Single Page ...

Golang Technical Lead

Hiring Organisation
Gazelle Global Consulting Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
while working closely with architects and business stakeholders to deliver modern cloud-native platforms. Key Skills Golang development Microservices architecture Azure Cloud Distributed Systems REST API design Document Databases & NoSQL Solution architecture and technical governance Agile technical leadership Kubernetes (AKS) CI/CD and DevOps practices For more information ...

Duck Creek Developer

Hiring Organisation
Versified
Location
City of London, London, United Kingdom
Billing and Claims. What you'll be doing: Developing and configuring Duck Creek solutions for Policy, Billing and Claims Integrating third party systems via REST/SOAP APIs Working within Duck Creek Studio and the wider toolset Managing source code and version control through Git Contributing to CI/ ...

ServiceNow Architect

Hiring Organisation
TECHNEST TALENT LTD
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 - 90,000 Annual
technical standards. Design and implement solutions across ITSM and additional ServiceNow modules including ITOM, ITAM, HRSD, CSM, GRC and SecOps. Drive integrations using REST, SOAP APIs and MID Servers. Ensure platform scalability, security and performance. Lead architecture workshops and mentor junior technical teams. Essential Skills: Extensive ServiceNow architecture experience. Strong ...