76 to 100 of 157 REST Jobs in London

Full Stack Engineer

Hiring Organisation
Stealth Startup
Location
City of London, London, United Kingdom
Experience 3+ years commercial experience with a significant portion as a full-stack engineer. Strong experience with Node.js andReact.js — component architecture, state management, hooks, REST API development, authentication, middleware. PostgreSQL — schema design, query optimisation, migrations. Comfortable with multi-tenant SaaS architecture and making design decisions independently. Third-party ...

Software Engineer

Hiring Organisation
trg.recruitment
Location
City of London, London, United Kingdom
Enablement (x2) – Bristol-based What I am Looking For Strong commercial experience with .NET/C# Fintech or Payments background required. Solid understanding of REST APIs, microservices, and cloud-based architectures Experience working with frontend programming languages (React or Angular) Ability to pick up context quickly and contribute from ...

Senior Rust Developer - Rust/Linux/Low Latency - London - £120k-£160k

Hiring Organisation
Nicoll Curtin Technology
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 120,000 - 160,000 Annual
Strong Rust programming skills Linux/Unix environment experience Multithreading and concurrent programming Experience with low-latency or high-throughput systems Knowledge of WebSockets, REST APIs, and network protocols Strong problem-solving and analytical skills Desirable: Experience within financial markets or trading systems Exposure to crypto or blockchain technologies Additional ...

Senior Integration Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
preventative improvements. Required Skills: * Strong experience building enterprise integrations, preferably using Workato (although will consider other integration tool experience). * Demonstrated expertise with APIs (REST/SOAP), authentication methods, and data transformations. * Experience working in Agile/Scrum environments. * Strong problem-solving skills and ability to communicate technical concepts ...

Co-founder / CTO - Golang, AI, GCS

Hiring Organisation
Scoutifi
Location
City of London, London, United Kingdom
data pipelines and integrations → AI features powered by Google Gemini and Vertex AI that surface real insight from socio-economic data → Robust APIs (gRPC & REST) connecting our SaaS platform to client infrastructure → A CI/CD culture — clean code, automated pipelines, production-grade reliability What we're looking for: → 10+ ...

SAP BTP Integration Suite Developer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
bring: * Proven experience in designing and deploying integration flows within SAP BTP, especially CPI, API Management, and Event Mesh. * Strong knowledge of REST, SOAP, OData, and SFTP protocols. * Solid scripting skills, particularly with Groovy, and experience with message mapping. * Familiarity with Agile methodologies and CI/CD pipelines. * Ability ...

Python Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
smooth running of existing Python/SQL reporting framework. The AI enablement Engineer will have experience with the following technologies/tools: Docker, Postgres, REST APIs, SFTP, Websockets OOP + Asynchronous Design Patterns PowerQuery/DAX/M Industry standard libraries used in software development within finance (pandas, numpy, scipy ...

Founding Engineer

Hiring Organisation
Tarka Talent
Location
City of London, London, United Kingdom
systems in production and 3–5 years of substantive software/platform engineering Deep JavaScript/Node.js skills Azure Fluency JSON data structures, REST API design, and complex semi-structured data Practical LLM application — RAG architectures, prompt engineering etc Comfort with both relational (MS SQL) and document (MongoDB) databases This ...

QA Automation Test Engineer CGEMJP00337230

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
load, stress, and scalability tests Proficiency in one or more automation languages (Python, Java) Knowledge of: Distributed workload execution Multi-threading and parallelisation concepts REST API testing and validation Familiarity with Microsoft PowerBI, Fabric workloads, or similar analytical tools Soft Skills Strong attention to details and analytical thinking Excellent problem ...

Full Stack Web Developer (JQuery, PHP, MySQL)

Hiring Organisation
HireHop Equipment Rental Software
Location
London, England, United Kingdom
have but not necessary: Basic knowledge of invoicing procedures Web design skills How to work with Wordpress Written integrations with other web software using REST and webhooks ...

Senior Data Engineer

Hiring Organisation
83zero Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80,000
Synapse Analytics Azure Data Lake Storage Gen2 SQL Server Databricks Enhancements: Python (PySpark, Pandas) CI/CD (Azure DevOps) Infrastructure as Code (Terraform, Bicep) REST APIs GitHub Actions Desirable: Microsoft Fabric Delta Live Tables Power BI dataset automation DataOps practices What You'll Bring Professional experience in data engineering ...

Data Integration Engineer

Hiring Organisation
GlobalLogic
Location
City of London, London, United Kingdom
export services, ETL, reconciliation, profiling scripts Data quality assessment Apache Kafka PostgreSQL for data modelling, query design, migrations etc Data modelling and schema design REST API design Ideally you will have: Experience of C# to be able to contribute to existing service/integration codebase Memgraph or other graph databases ...

Servicenow Architect

Hiring Organisation
Experis
Location
London Area, United Kingdom
Platform, Service Catalog, Flow Designer, IntegrationHub Technical Skills Advanced knowledge of: Scoped applications and update sets Glide scripting (JavaScript) Flow Designer and Automation Engine REST/SOAP integrations and MID Server CMDB & CSDM framework Strong understanding of: Role-based security Performance Analytics UI Builder/Workspace (desirable) Certifications ServiceNow Certified ...

Salesforce Engineer - Certinia, CPQ, Billing

Hiring Organisation
Stepstone UK
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Aura/LWC, Visualforce development with a strong understanding of development best practices Knowledge in JavaScript, HTML, CSS and understanding of CI/CD, REST API Experience working with Salesforce CPQ, Salesforce Billing, Revenue Recognition Certinia Financial Management and Accounting(Desirable) Additional Information Were a community here that cares ...

Salesforce Engineer - Certinia, CPQ, Billing

Hiring Organisation
Stepstone UK
Location
London, UK
Aura/LWC, Visualforce development with a strong understanding of development best practices Knowledge in JavaScript, HTML, CSS and understanding of CI/CD, REST API Experience working with Salesforce CPQ, Salesforce Billing, Revenue Recognition Certinia Financial Management and Accounting(Desirable) Additional Information Were a community here that cares ...

React Native developer

Hiring Organisation
IBU CONSULTING LTD
Location
London, United Kingdom
Employment Type
Permanent
Testing Jest React Native Testing Library strong requirement many test files UI Styled Components 6, Reanimated, Gesture Handler, Lottie, Skia APIs GraphQL with codegen, REST with React Query Thirdparty Sentry, NewRelic, Optimizely, Braze, Auth0, Contentful Agile Work Experience ...

Full Stack Engineer - Equity

Hiring Organisation
Dental startup
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
tech team as we grow Required Skills & Experience 3+ years commercial full-stack experience Strong React.js component architecture, state management, hooks Strong Node.js REST API development, authentication, middleware PostgreSQL schema design, query optimisation, migrations Multi-tenant SaaS architecture data isolation, permissions, org-level config Comfortable making architectural decisions independently Third ...

Full-Time .Net MAUI Mobile App Developer (iOS & Android) — Remote

Hiring Organisation
Astera
Location
Central London / West End, London, United Kingdom
.NET MAUI strongly preferred Proven experience implementing apps directly from Figma Strong mobile UI/UX implementation skills (spacing, typography, layout, interaction) Experience with REST APIs, auth flows, and state management Comfortable delivering apps that feel fast, clean, and well-finished 👉 We’re comfortable with AI-assisted development tools (e.g. ...

OutSystems Developer (LowCode Orchestration)

Hiring Organisation
Infoplus Technologies UK Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 - 450 Daily
experience in OutSystems development (Traditional or Reactive Web/Mobile). Strong understanding of low-code application architecture and lifecycle. Experience with integrations (REST, SOAP, OAuth, SQL, message queues). Basic understanding of CSS, JavaScript, and relational databases (SQL Server, Oracle) click apply for full job details ...

Android Developer (Contract)

Hiring Organisation
La Fosse
Location
London Area, United Kingdom
pipelines and release processes Technology Stack Languages: Kotlin (primary), Java (legacy) Architecture: MVVM, Clean Architecture UI: XML and/or Jetpack Compose Networking & Data: REST APIs, Retrofit, Coroutines/Flow Android: Jetpack (ViewModel, Navigation) Testing: JUnit, Espresso Tools: Git, CI/CD pipelines (e.g. GitHub Actions, Jenkins) This contract will ...

Salesforce Developer

Hiring Organisation
167 Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
Salesforce solutions using Apex and Lightning Web Components (LWC) Customise Salesforce across Sales Cloud, Service Cloud and Experience Cloud Build and maintain integrations using REST/SOAP APIs Work closely with Architects, Consultants and stakeholders to deliver scalable solutions Support data migration, data modelling and system optimisation Follow Salesforce best ...

Salesforce Developer

Hiring Organisation
167 Solutions Ltd
Location
London, UK
Salesforce solutions using Apex and Lightning Web Components (LWC) Customise Salesforce across Sales Cloud, Service Cloud and Experience Cloud Build and maintain integrations using REST/SOAP APIs Work closely with Architects, Consultants and stakeholders to deliver scalable solutions Support data migration, data modelling and system optimisation Follow Salesforce best ...

Back-End Integration Engineer (Fixed-term Contract)

Hiring Organisation
I3 Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Temporary
Salary
£80,000
integration engineering experience Proven delivery of complex integrations end-to-end Expertise in APIs, microservices, and event-driven architecture Solid understanding of integration patterns (REST, messaging, orchestration) Experience with Azure integration stack (APIM, Service Bus, Event Grid, Functions) Strong coding skills in C# and/or Python Experience integrating legacy ...

Workflow Developer

Hiring Organisation
Lynx Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
across core business systems. Create and optimize SQL queries, stored procedures, and data routines to support workflow logic and reporting. Develop integrations using APIs, REST services, and approved low-code or integration tools. Gather, analyse, and translate business requirements into technical specifications with clear acceptance criteria. Maintain technical documentation ...

Integration Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
SaaS products with internal systems Solid development experience using .NET Hands-on experience with Terraform or similar Infrastructure as Code tools Good understanding of REST APIs, authentication methods, and security principles Bonus Points If You Have Experience with Azure API Management or comparable platforms Familiarity with CI/CD pipelines ...