31 to 55 of 139 RESTful Jobs in London

Senior Java Developer (Low-Latency Payments Systems)

Hiring Organisation
RE Partners
Location
City of London, London, United Kingdom
hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high-throughput backend systems using Core Java and SpringBoot. Build and maintain RESTful APIs and microservices that power secure payment workflows. Work with XML-based messaging standards and protocols commonly used in financial transactions. Deploy, monitor, and scale applications ...

SC Cleared Integration Developer

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day
resilient integrations using modern API-driven architectures and Azure Integration Services. Key Responsibilities Design and implement integrations supporting HubStream One migration Develop and maintain RESTful APIs and Azure-based integration services Build integration workflows using Azure Logic Apps Develop and manage Azure Web Apps/App Services Configure and support ...

Full Stack Developer - .Net

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £410 per day
Security Clearance (SC). Strong front-end experience using React and TypeScript, alongside ASP.NET MVC and/or WebForms. Demonstrated experience building and consuming RESTful APIs within microservices architectures. Solid background working with SQL Server or other relational databases. Experience writing and maintaining automated unit and integration tests. Proven delivery ...

Dotnet Developer

Hiring Organisation
LanceSoft UK
Location
London Area, United Kingdom
solutions in a regulated environment. Key Responsibilities Design, develop, and maintain C#/.NET applications supporting Risk or Securities Lending platforms Build and consume RESTful APIs to integrate with upstream/downstream systems Implement scalable, testable, and maintainable object oriented code following best practices Contribute to risk workflows including exposure ...

Senior DevOps Engineer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Java fundamentals including object-oriented programming, collections, exception handling and concurrency. Integration, API Development and Databases - Experience building and deploying event-driven and RESTful APIs, with foundational knowledge of SQL and relational database design Infrastructure and DevOps - Hands-on experience with Linux-based server environments, scripting (Bash/Python ...

Backend Developer

Hiring Organisation
Tiro Partners
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £95000/annum
enjoy working on modern software platforms. You'll ideally have experience with: Node.js and Typescript development PostgreSQL or similar relational databases. Designing and consuming RESTful APIs. Version control using Git. Debugging and performance optimisation. Writing clean, maintainable and well-tested code. Nice to have Experience in any of the following ...

Senior Backend Dev (Node.JS)

Hiring Organisation
Tiro Partners Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £95,000 per annum
enjoy working on modern software platforms. You'll ideally have experience with: Node.js and Typescript development PostgreSQL or similar relational databases. Designing and consuming RESTful APIs. Version control using Git. Debugging and performance optimisation. Writing clean, maintainable and well-tested code. Nice to have Experience in any of the following ...

Java / Cloud Technical Lead - London, Wembley

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75000 - £80000/annum + Benefits
YAML workflows - not as a DevOps engineer, but as a developer who understands the pipeline their code flows through. API Mastery: Deep expertise in RESTful API design principles, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email logic via SendGrid. Duties Engineering Standards: Define and enforce the clients ...

Lead Java Modernization Engineer - London, Wembley

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75000 - £80000/annum + Benefits
YAML workflows - not as a DevOps engineer, but as a developer who understands the pipeline their code flows through. API Mastery: Deep expertise in RESTful API design principles, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email logic via SendGrid. Duties Engineering Standards: Define and enforce the clients ...

Senior Software Engineer - hx Renew/Pricing

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 120,000 Annual
similar Insurance Pricing, Rating, Underwriting or Actuarial platforms. Strong Python development experience , ideally within insurance pricing. Experience with C# .NET would be beneficial RESTful APIs and JSON. Automated testing frameworks such as NUnit, Selenium, Jest, Jasmine, Mocha or similar. CI/CD pipelines, DevOps practices and configuration management tools. Delivering ...

Mulesoft Developer

Hiring Organisation
Miller Insurance Services LLP
Location
Greater London, England, United Kingdom
maintaining Mule runtime 4.x applications Experience working with Anypoint platform including CloudHub (1.0 or 2.0) Experience integrating with Salesforce.com, SQL Server, SOAP/RESTful APIs desirable Experience with common web connectivity and integration standards/protocols Experienced using version control tools e.g. Git Experience with DevOps and CI/ ...

Principal Java Engineer

Hiring Organisation
RE Partners
Location
City of London, London, United Kingdom
culture, we want to hear from you. Key Responsibilities: Design, develop, and optimize low-latency, high-throughput backend systems using Java. Build and maintain RESTful APIs and microservices that power secure payment workflows. Work with messaging standards and protocols commonly used in financial transactions. Deploy, monitor, and scale applications ...

Lead DevOps Engineer

Hiring Organisation
Tank Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 - 110,000 Annual
Technical Depth: Elite proficiency in managing and scaling cloud-native infrastructure, with deep expertise across AWS, Kubernetes, Docker, CI/CD pipelines, Git, and RESTful APIs. Leadership Track Record: Demonstrable experience operating in a Technical Lead, Infrastructure Architect, or Senior DevOps capacity-with the proven ability to build, scale ...

Senior Software Engineer

Hiring Organisation
Elsevier
Location
Greater London, United Kingdom
Employment Type
Full Time
Application Firewall (WAF) technologies and Cloudflare features - Solid working experience with Git and SQL - Knowledge of Terraform and experience working with Linux - Familiarity with RESTful services, event-driven architectures, scripting, testing practices in CI/CD environments, and Agile DevOps ways of working Work in a Way that Works ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
City of London, London, United Kingdom
Rails architecture Extensive experience with PostgreSQL, including performance tuning and complex queries. Experience with background job processing using Sidekiq and Redis. Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO). Hands-on experience with AWS services and containerised deployments (Docker). Experience troubleshooting and supporting ...

Sr. Software Engineer, Infrastructure

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Deep understanding of user-centered design principles, design thinking methodologies, and usability best practices. Proficient in using and maintaining Docker containers. Strong understanding of RESTful API design principles and best practices. Experience with TDD and testing frameworks such as Boost.Test, Google Test, etc... NicetoHaves: ExperiencewithAzureservicesformanagingGPTpipelinesandmulti-cloudinfrastructure. FamiliaritywithbigdatatechnologiessuchasApacheSpark,Kafka,andMSKforlarge-scaledataprocessing. ...

Senior Solutions Engineer

Hiring Organisation
Wise
Location
Greater London, United Kingdom
Employment Type
Full Time
Salary
87500 to 111000 GBP Annually
driven design (DDD), event-driven architecture (EDA), and microservices architecture. Familiarity with Java (Spring), Kubernetes, AWS, and service mesh architectures and technologies such as RESTful APIs, API design, Swagger, OpenAPI, and OAuth2. Familiarity and working experience with relational databases (e.g.MySQL, PostgreSQL) and non-relational databases (e.g., MongoDB, Cassandra). 6+ ...

Full Stack Engineer - C# / React / SQL

Hiring Organisation
Cross Atlantic Partners
Location
London, UK
database design Proven experience working on middle/back-office systems in financial services Understanding of fund operations workflows and processes Experience with RESTful APIs and microservices architecture Strong problem-solving abilities and attention to detail Highly Desirable Experience with fund accounting/administration systems (Geneva, Charles River, SimCorp, etc. ...

Sr. Java Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
practices regularly.### Skill & Experience* Strong proficiency in Java, Spring, Hibernate, and related frameworks.* Experience with relational databases, SQL, and NoSQL technologies efficiently.* Knowledge of RESTful APIs, microservices, and cloud-based solutions thoroughly.* Excellent problem-solving, debugging, and analytical thinking capabilities consistently.* Familiarity with version control systems like Git or SVN. ...

Backend Engineer

Hiring Organisation
Tiro Partners
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
enjoy working on modern software platforms. You'll ideally have experience with: Node.js and Typescript development PostgreSQL or similar relational databases. Designing and consuming RESTful APIs. Version control using Git. Debugging and performance optimisation. Writing clean, maintainable and well-tested code. Nice to have Experience in any of the following ...

Principal Engineer (Payments)

Hiring Organisation
Intec Select Ltd
Location
London, Fitzrovia, United Kingdom
Employment Type
Permanent
Salary
£90000 - £115000/annum Hybrid + 25% bonus
Architectures: Leverage modern technologies to design and implement scalable, secure, and high-performing cloud-native solutions. API Development and Integration: Design and build secure RESTful and GraphQL APIs, ensuring seamless integration with core banking systems (e.g., Mambu) and external services like Open Banking platforms. Data Engineering and Analytics: Work closely ...

Senior Backend Developer

Hiring Organisation
Rullion Managed Services
Location
City of London, London, United Kingdom
Employment Type
Contract
Skills: Demonstrated expertise as a Senior Backend Developer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency in version control tools like Git. Sound understanding of development best practices including pair programming and TDD. Eagerness to engage ...

Lead Software Engineer

Hiring Organisation
Prolo
Location
London Area, United Kingdom
engineering experience Strong proficiency in Python (3.10+) with deep understanding of async programming Experience with Poetry or similar Python dependency management tools Experience building RESTful APIs and micro-services Solid understanding of database design and optimisation (both SQL and NoSQL) Experience with graph databases (Neo4j preferred) or willingness to learn ...

GenAI Python Developer

Hiring Organisation
Sandhata Technologies Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 Annual
boundaries, and model access governance. Developement of AWS services: EC2, EKS, S3, SQS, DynamoDB, Bedrock. Preferred Skills Kong API Gateway, Kong Mesh, Flux CD. RESTful API development (FastAPI preferred), microservices, Terraform with GitOps workflows. Prompt evaluation, observability & red teaming tools (like Arize, Promptfoo). Experience with SQL (MySQL, PostgreSQL ...

Engineering Manager - Software & ML

Hiring Organisation
Capital One UK
Location
London, United Kingdom
updates and software releases move in sync. Leadership Excellence: Proven experience leading and supporting software engineering teams to achieve business goals. Excellent knowledge of RESTful API development in modern languages (Java, Python, or .Net) and experience with Cloud environments (AWS or Azure). AI Awareness: You aren't necessarily ...