1 to 25 of 42 REST Jobs in Northern Ireland

Senior Software Engineer - BackEnd - Fintech

Location
Belfast City District, Northern Ireland, United Kingdom
native systems. Strong commercial experience with C# and modern .NET technologies , including .NET Framework and .NET Core. Strong experience designing and developing APIs, particularly REST and/or GraphQL . Solid understanding of relational database design and optimisation, ideally MSSQL and/or MySQL . Hands-on experience deploying ...

Backend/API Engineer - Telecoms & Cloud

Location
Belfast City District, Northern Ireland, United Kingdom
estate, improving automation, system interoperability and operational efficiency. The Person Experience developing RESTful APIs and backend applications in a commercial environment. Strong understanding of REST, HTTP, JSON and API design principles . Experience with one or more backend development languages such as C#, Java, Python, Node.js or PHP . Experience ...

Full Stack Lead Architect, Vice President

Location
Belfast City District, Northern Ireland, United Kingdom
architecture. Proven experience leading large-scale technology initiatives and distributed engineering teams. Technical Expertise Java 17+, Spring Boot, Microservices Angular and/or React REST APIs and Event-Driven Architecture Kafka, Solace, Redis, Hazelcast Oracle, MongoDB, Snowflake Databricks, Spark, Data Engineering concepts Azure and/or AWS Cloud Platforms Docker ...

Senior Full Stack Engineer

Location
Belfast City District, Northern Ireland, United Kingdom
following would be beneficial: TypeScript, JavaScript, React and modern front-end frameworks Backend development using TypeScript, Java, C# or another object-oriented language REST APIs, GraphQL and WebSockets AWS and modern cloud platforms Microservices and event-driven architectures SQL and NoSQL databases Unit, integration and end-to-end testing Terraform ...

Senior Front-End Web Developer (AVP)

Location
Belfast City District, Northern Ireland, United Kingdom
related field (or equivalent practical experience). Technical Skills Commercial experience of React.js, JavaScript, HTML, and CSS. Understanding of Java Familiarity with REST APIs. Knowledge of version control systems such as Git. Knowledge of Agile/Scrum methodologies Basic understanding of SQL databases. Understanding of object-oriented programming concepts. Experience ...

Senior Front-End Web Developer (AVP)

Hiring Organisation
Citigroup
Location
Belfast, UK
Employment Type
Full-time
Computer Science, Software Engineering, or a related field (or equivalent practical experience).Technical SkillsCommercial experience of React.js, JavaScript, HTML, and CSS.Understanding of JavaFamiliarity with REST APIs. Knowledge of version control systems such as Git. Knowledge of Agile/Scrum methodologiesBasic understanding of SQL databases. Understanding of object-oriented programming concepts. ...

Product Engineer - Lead Consultant (Hybrid)

Location
Belfast City District, Northern Ireland, United Kingdom
improving individual or team technical capability across full-stack, microservices, or risk product delivery. Demonstrated ability to design, develop, and integrate APIs, backend services, REST-based interfaces, SQL data stores, and event-driven components using technologies such as Kafka. Strong working knowledge of modern development workflows and engineering practices such ...

Product Engineer - Lead Consultant (Hybrid)

Location
Belfast City District, Northern Ireland, United Kingdom
improving individual or team technical capability across full‐stack, microservices, or risk product delivery. Demonstrated ability to design, develop, and integrate APIs, backend services, REST‐based interfaces, SQL data stores, and event‐driven components using technologies such as Kafka. Strong working knowledge of modern development workflows and engineering practices such ...

Lead D365 CE Engineer

Location
Newtownabbey, Northern Ireland, United Kingdom
React) JavaScript form customisation and Power Automate Knowledge of public cloud platforms, such as AWS and Azure, including SaaS and PaaS offerings Desirable Typescript REST API integrations Azure DevOps and Power Platform ALM Azure Functions APIM/Azure Service Bus AI Driven Delivery WHO YOU ARE: Our vision ...

Power Platform / D365 Technical Lead

Location
Belfast City District, Northern Ireland, United Kingdom
JavaScript, jQuery, Liquid Template Strong server-side development experience C#/.Net Strong experience using Plugins, Custom Workflow Activities, Custom APIs Integration experience with REST APIs/custom connectors Azure Integration Knowledge - Azure Functions, Logic Apps, Service Bus ALM and CI/CD experience Azure DevOps + Agile Practices Comprehensive ...

Senior Software Engineer (Belfast, UK)

Location
Belfast City District, Northern Ireland, United Kingdom
Criteria: 5+ years Java; Java 17+/21, Spring Boot or equivalent Stream/event-driven services at volume (Redis Streams, Kafka or similar) REST API design and ownership, contract-first Containerised services on Azure or another major cloud; Docker, CI/CD Strong SQL Desired Criteria: ClickHouse or another ...

Senior UI Engineer (Belfast, UK)

Location
Belfast City District, Northern Ireland, United Kingdom
Experience with data-rich interfaces, including large tables, charts and visualisations Frontend performance optimisation, particularly for complex interfaces and large datasets Consuming and shaping REST APIs; state management for complex, long-lived workspaces Desired Criteria Enterprise software development Advanced charting, data visualisation and virtualisation using tools such as D3, visx ...

Senior Software Engineer - Full Stack

Location
Belfast City District, Northern Ireland, United Kingdom
based on client and UI/UX specifications Developing reusable frontend components and contributing to the modernisation of existing web applications Developing and integrating REST APIs and backend functionality using C#/.NET Working with SQL Server and Entity Framework to support application functionality and data-driven features Applying SOLID ...

Solutions Architect

Location
Belfast City District, Northern Ireland, United Kingdom
services. Strong track record of producing architectural artefacts: Solution Architecture Descriptions, ADRs, NFR specifications, and Well‐Architected Review outputs. Experience designing system integrations, including REST and event‐based API contracts, and working within complex integration landscapes that span modern and legacy systems. Solid understanding of data architecture patterns, including data ...

Product Security Engineers (Multiple Levels) (Hybrid)

Location
Belfast City District, Northern Ireland, United Kingdom
operating scalable distributed systems and cloud‐based applications, including microservices architectures Demonstrated ability to design, develop, and integrate APIs and backend services, including REST‐based interfaces Familiarity with modern development workflows and engineering practices such as test driven development, paired programming, and continuous integration and deployment Experience collaborating effectively within ...

Mid & Senior Java Developers

Location
Belfast City District, Northern Ireland, United Kingdom
following: Commercial experience building applications using TypeScript and Node.js Modern frontend development with React or similar frameworks Experience developing cloud-hosted applications (AWS preferred) REST APIs and microservice architecture SQL databases and data modelling CI/CD pipelines and modern development practices A passion for writing clean, maintainable, well-tested ...

SOFTWARE ENGINEER/DEVELOPER

Location
Derry/Londonderry, Northern Ireland, United Kingdom
development and deployment of software solutions. Training and application of LLMs in a research or industrial setting. Experience of web API protocols such as REST or GraphQL. #J-18808-Ljbffr ...

Frontend Quality Assurance Specialist

Location
Belfast City District, Northern Ireland, United Kingdom
front‐end automation suite in Playwright to ensure regression stability across modern web interfaces Develop back‐end automation to validate Admin and Customer facing REST and Websocket API endpoints Develop back‐end end‐to‐end testing to validate critical system workflows Integrate automated test suites into the CI/ ...

Back-End Developer

Location
Belfast, Northern Ireland, United Kingdom
architecture , ORMs (Eloquent) , and service containers . Experience with MySQL databases, including schema design and query optimisation. Solid understanding of API development (REST, JSON). Proficient in Git and modern version control workflows (GitHub/Bitbucket). Experience with queuing systems (e.g. Laravel Queues, Redis, RabbitMQ). Familiarity with containerisationand ...

Software Developer - Online Prize Competitions - Exclusive

Location
Belfast City District, Northern Ireland, United Kingdom
high-traffic, high-volume or transactional websites/applications . Strong Full Stack development experience across backend and frontend technologies. Experience developing and integrating REST APIs and third‐party services . Strong understanding of application performance, scalability and optimisation. Experience with Git, code reviews, testing and software development best practices. ...

Lead Salesforce Developer

Hiring Organisation
EOS IT Solutions
Location
Armagh, Co. Armagh, UK
Employment Type
Full-time
best practices. Strong hands-on development experience with Apex, Lightning Web Components (LWC), Visualforce, and Salesforce automation tools. Experience designing complex system integrations using REST, SOAP, platform events, middleware, and other enterprise integration technologies. Expertise in Salesforce data architecture, data modelling, governance, migration, and quality management. Experience delivering scalable solutions ...

Hybrid Senior Full-Stack Engineer - AWS Fusion Platform

Location
Belfast City District, Northern Ireland, United Kingdom
backend, collaborating with AWS and other engineers. You will mentor juniors, own features end-to-end, and contribute to scalable microservices, GraphQL and REST APIs using React, TypeScript and cloud services. The role is hybrid, based in Belfast City Quays. #J-18808-Ljbffr ...

React Native Developer

Location
Belfast City District, Northern Ireland, United Kingdom
TypeScript skills Experience developing and releasing applications for both iOS and Android Strong understanding of mobile application architecture, performance and security Experience working with REST APIs and integrating backend services Familiarity with Git, CI/CD and Agile development methodologies #J-18808-Ljbffr ...

Application Support Engineer | Hybrid

Location
Belfast City District, Northern Ireland, United Kingdom
tooling in a professional setting Ability to read and modify application code in a compiled language preferred Required Skills/Abilities Strong understanding of REST APIs, Google Cloud Platform, and microservices architecture Proficiency in SQL and NoSQL databases (MSSQL, MongoDB, Postgres) Solid networking knowledge, including TCP/ ...

Senior Data Security Engineer - (Hybrid OR Remote)

Location
Belfast City District, Northern Ireland, United Kingdom
Microsoft 365 security ecosystem. Comprehensive understanding of cloud, SaaS, CASB, and enterprise data protection architectures. Proficiency in scripting and automation technologies including PowerShell, Python, REST APIs, Terraform, Bicep, YAML, JSON, or comparable tools. Demonstrated success in modernising Data Protection, DLP, CASB, or Information Protection programs through automation, standardization, and engineering ...