1 to 25 of 31 REST Jobs in the City of London

Full Stack Developer (.NET)

Hiring Organisation
DGH Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Experience - Strong experience building enterprise and web-based applications - Proficiency in C#, .NET/ASP.NET - Front-end skills including HTML5, CSS3, JavaScript - Experience with REST APIs, JSON - Familiarity with Git and modern development tools (e.g. Visual Studio) Desirable Skills - .NET Core/.NET 5+ - Angular, Blazor or modern JS frameworks ...

QA Engineer

Hiring Organisation
E-Solutions
Location
City of London, London, United Kingdom
testing event-driven and serverless architectures Test Automation & Tools Experience with: Automation frameworks (Jest framework, Java/Springboot, or similar) API testing tools (Postman, REST clients) Ability to: Create automated test suites Validate JSON-based inputs/outputs for APIs and events Knowledge of: BDD frameworks (Cucumber - good to have ...

SC Cleared Freelance Frontend Fullstack Developer

Hiring Organisation
Opus Recruitment Solutions
Location
City Of London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £650/day
focus to build modern, scalable web applications, with some backend/API work. Tech & Skills JavaScript/TypeScript, React/Angular/Vue Node.js, REST/GraphQL APIs HTML, CSS, responsive & accessible design Testing (Jest/Cypress), CI/CD, Git Experience integrating APIs (AI exposure a bonus) Responsibilities Build ...

Camunda Developer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
code reviews, and compliance with standards .Hands‐on in Camunda BPM, BPMN/DMN modelling .Strong Java/Spring Boot development experience .Familiar with REST/SOAP integrations, messaging (Kafka/RabbitMQ) .Exposure to Docker, Kubernetes is a plus . ...

Camunda Architect

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
driven systems, and legacy syste ms.Strong expertise in Camunda Platform 8/7, BPMN 2.0, D MN.Hands‐on experience with Java/Spring Boot, REST APIs, Kafka, cloud-native microservic es.Strategically support cloud migration and modernization programs involving Camun da.Conduct POCs, evaluate tools, and propose scalable architecture improvemen ts.Mentor technical ...

Backend Software Engineer Java Kafka - Tech Consultancy

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
have 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 experience with Kafka (or similar messaging tools) You have a good understanding of AWS You have a thorough understanding of software development ...

Principal, Enterprise Integration Architect & Application Development

Hiring Organisation
excelerated
Location
City of London, London, United Kingdom
development and engineering leadership experience. Experience integrating enterprise platforms including SAP ECC, S/4HANA, Ariba, Oracle, and SaaS applications. Expertise in API technologies (REST, SOAP), messaging frameworks, and integration security (OAuth, SAML, JWT). Strong knowledge of B2B and EDI standards (ANSI X12, EDIFACT, cXML, IDoc). Demonstrated leadership ...

ServiceNow Architect

Hiring Organisation
TechNest Talent
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£90,000
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 ...

Senior Android Developer

Hiring Organisation
eTeam
Location
City of London, Greater London, UK
cause analysis, and impact assessment Skills & Experience Essential: Strong experience with Kotlin (preferred) and/or Java, and the Android SDK Proven experience integrating REST APIs (or similar services) Hands-on knowledge of Google Play Console, app signing, and release management Experience with mobile performance optimisation and secure coding practices ...

Senior C# Engineer .NET 8/9, 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 ...

AI Solutions Architect - up to £120K+Benefits - Hybrid/London

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 ...

ServiceNow Architect

Hiring Organisation
ACUMEN BAY CONSULTANCY LIMITED
Location
City of London, Greater London, UK
Strong experience with ServiceNow ITSM and at least 2 other modules (TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps). Proven expertise in ServiceNow integrations (REST, SOAP, APIs, MID Servers, etc.). Experience with ServiceNow scripting (JavaScript, Glide, Flow Designer) and ServiceNow data model. Knowledge of ITIL/ITSM processes ...

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. ...

Senior IAM & PAM Consultant

Hiring Organisation
Vanquish Technologies Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Time (JIT) access. Integrate PAM with Microsoft Entra ID, Active Directory, LDAP, cloud platforms, and enterprise applications. Develop automation using PowerShell, Python, and REST APIs. Troubleshoot authentication, provisioning, and privileged access issues. Support platform upgrades, migrations, and disaster recovery testing. Produce technical documentation and operational runbooks. Functional/Non-Technical ...

Application Engineer

Hiring Organisation
Comtecs
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
systems); experience with Sharepoint DMS would be fully acceptable here Solid understanding of core integration techniques utilising a range of the following skills SQL, REST APIs, Service Bus and C# (where applicable) Excellent vendor, stakeholder engagement, communication, training and documentation Experience of aspects of product ownership including roadmap development ...

Founding Engineer / Technical Lead

Hiring Organisation
Coburg Banks Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
transport technology Geospatial systems and location intelligence Technical Environment Experience across several of the following is valuable: Python, TypeScript, Go, Java, or similar REST APIs and distributed architectures AWS and cloud infrastructure PostgreSQL and data-intensive systems Docker, CI/CD, observability, and reliability engineering Third-party integrations and secure ...

Network Automation Developer

Hiring Organisation
Certain Advantage
Location
City of London, London, United Kingdom
production environments. Solid understanding of automation and CI/CD security best practices, including RBAC, secrets management, and pipeline hardening. Experience integrating systems using REST APIs and event-driven architectures. Familiarity with Azure cloud services and cloud-native automation approaches. Does this sound like your next career move? Apply today. ...

Workday Technical Consultant

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
integration platform. Strong understanding of relational databases, data architecture, and downstream system impacts. Experience working with Web Services and APIs, including SOAP, REST, WSDL, and related standards. Strong technical expertise in XML and Java. Experience supporting interface technologies, networking, data warehousing, and performance optimisation. Proven ability to work with third ...

Oracle FCCS Developer / EPM Technical Administrator

Hiring Organisation
The Travel Corporation
Location
City of London, London, United Kingdom
data loads and reporting. Oracle Smart View, Financial Reporting Studio and Narrative Reporting. EPM Automate. Data Management/Data Exchange/FDMEE. Groovy scripting. REST APIs and SOAP APIs. SQL for data querying, validation and issue investigation. Python or PowerShell scripting for automation. Oracle Cloud Infrastructure and cloud security best ...

Senior Business Analyst

Hiring Organisation
Tom & Co
Location
City of London, London, United Kingdom
marketing systems; Knowledge of Magento 2/Adobe Commerce or similar eCommerce platform (BigCommerce, Salesforce, Shopware, Shopify) highly desirable; Basic knowledge of SOAP/REST/GraphQL APIs and general API principles with the ability to interrogate them using tools such as Postman; Hands-on experience with AI tools ...

ServiceNow Developer | Inside IR35 | Active SC Required

Hiring Organisation
Akkodis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £600/day
delivery across ITSM, with strong exposure to ITOM (ideally incl. AIOps) Experience building and delivering end-to-end ServiceNow solutions Solid experience with integrations (REST/SOAP APIs, Integration Hub, etc.) Exposure to other ServiceNow modules (e.g. CSM, HRSD, IRM) would be highly beneficial Comfortable working in fast-paced delivery ...

Full Stack Engineer (Python/React.js) -Vietnam

Hiring Organisation
Robert Half Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
real-world problems for customers. You have strong hands-on experience with our core stack: Python, Django, PostgreSQL, TypeScript, React, and Next.js. You understand REST APIs, web development fundamentals, database design, and what it takes to build reliable, performant systems. Why Join? High-growth business with genuine progression opportunities Influence ...

Technical Consultant

Hiring Organisation
LexisNexis Risk Solutions
Location
City of London, London, United Kingdom
business customers through the full lifecycle of onboarding, meeting timescale requirements Requirements: Experience of implementing & configuring bespoke customer SaaS products Demonstrate knowledge of using REST API for integrating SaaS platforms, familiar with JSON, XML & Webhooks Have financial Crime knowledge/experience as an analyst, investigator or similar in at least ...

Solutions Engineer

Hiring Organisation
Run-Time Group Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£75,000
product and engineering improvements Requirements 3+ years experience in Solutions Engineering, Implementation, Integration, or similar roles within SaaS or web environments Strong knowledge of REST APIs, HTTP, and SQL Experience working with complex system architectures and integrations Proven troubleshooting and debugging skills Familiarity with JavaScript preferred Degree in Comp ...

Oracle MFCS Solution Architect/Functional Architect

Hiring Organisation
Square One Resources
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day
enterprise integration programs, cloud migrations, and platform upgrades. Strong functional expertise across MFCS, IMCS, POM, RIHA, RICS, RMS, SIM, ReSA, REIM, RIB, FTS, and REST-based integrations If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding ...