Average salary: £81,680 /yearly
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£40k - £50k per annum
...Belfast-based telecommunications and technology organisation , is hiring an API Engineer to join their existing technology team. This is an excellent opportunity for an experienced Backend/API Developer to work across a varied technology environment, developing integrations...SuggestedPermanentTemporaryHybrid workingFlexible hours£49k - £66k per annum
...microservices and message-driven architectures. We want experience developing applications with non-functional requirements in mind. We need... ...and sizing. We require experience in integration and API design. We are looking for proficiency in cloud technologies....SuggestedFull-timeRemoteFlexible hoursVersion 1
Belfast1 day ago£62k - £102k per annum
...and object-oriented programming concepts. Familiarity with REST APIs, Git or other version control systems, Agile/Scrum methodologies,... ...is advantageous but not essential. Responsibilities: Develop and maintain user interfaces using React.js and support backend services...SuggestedFull-timeCasual workHybrid workingWork from homeCitigroup
Sydenham, Belfast1 day ago- £41k - £54k per annumEstimated...Job Description We are seeking an experienced Full Stack Developer to join our technology team. This role is suited to a software... ...and TypeScript. Build and enhance backend services and APIs using .NET Core and C#. Collaborate with Product Owners, Business...SuggestedFull-timeRemoteFlexible hours
- £64k - £84k per annumEstimated...investment being made in its technology capabilities, the business is developing a new-generation platform and continuing to expand its... ...TypeScript, Java, C# or another object-oriented language REST APIs, GraphQL and WebSockets AWS and modern cloud platforms Microservices...SuggestedPermanentHybrid workingOn-site
- £68k - £86k per annumEstimated...Belfast. As a Full Stack Engineer , you'll play a key role in developing modern platforms and services, while working as part of a highly... ...TypeScript, Java, C# or another object-oriented language REST APIs, GraphQL and WebSockets AWS and modern cloud technologies...SuggestedPermanentHybrid workingOn-site
- £47k - £61k per annumEstimated...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,...SuggestedFull-timeHybrid workingOn-siteFlexible hours
£40k - £50k per annum
...in Belfast, on real production systems and rapid prototypes. WHAT YOU’LL DO (Duties) ~ Build web frontends, backend services and APIs in TypeScript across a variety of projects. ~ Contribute to design and technical decisions, from rapid prototypes to production platforms...SuggestedFull-timeHybrid workingOn-site- £63k - £81k per annumEstimated...EY and help to build a better working world. Senior Full-Stack Developer - Technology Consulting – Belfast In Digital Engineering we... ...frameworks such as React, Angular or Vue. Design and implement robust APIs and services, ensuring security, reliability and maintainability....SuggestedImmediate startFlexible hours
- £49k - £65k per annumEstimated...We are seeking a highly skilled and experienced Senior Java Developer to join our dynamic team. The ideal candidate will have a strong... ...Skills: Proficiency in Java, Spring Framework, Hibernate, and RESTful APIs. Problem-Solving: Excellent analytical and problem-solving skills...SuggestedFull-timeRemoteFlexible hours
- £56k - £75k per annumEstimated...We are looking for an experienced Java Developer to join a fast-moving delivery team building a new regulatory reporting platform for a global... ...Solid understanding of microservices architecture and RESTful API design Experience deploying to and developing in AWS or other...Suggested
- £70k - £94k per annumEstimated...to move faster, not to cut corners. Responsibilities Build production services using Python, FastAPI and Pydantic models. Develop APIs and backend workflows that support AI-enabled document and contract intelligence. Work with PostgreSQL, SQLAlchemy and Alembic to...SuggestedFull-time
£40.5k - £68.5k per annum
...similar technologies Proven ability to design and build scalable APIs and distributed systems Solid experience with relational... ...non-technical stakeholders A mentoring mindset and passion for developing others and raising team capability High ownership,...SuggestedFull-timeFlexible hoursEY (Ernst & Young)
Belfast1 day ago- £41k - £55k per annumEstimated...and want to help shape the way we embed AI tooling throughout our developer experience. Primary Job Responsibilities: Design & build... ...typing every line Exposure to building web services using Web API An understanding of database design and development Hands-on...SuggestedFull-timeHybrid working
£35k - £65k per annum
...on performance, security-first architecture, and long-term maintainability. Experience designing and deploying sophisticated RESTful APIs and distributed systems that handle high-concurrency workloads. Ability to thrive in an Agile, CI/CD-driven environment and uphold...SuggestedLong-term contractPermanentFull-timeHybrid workingRemoteWork from homeCtrl Alt
Belfast1 day ago- £67k - £90k per annumEstimated...~ Strong experience designing and building distributed systems, APIs, and cloud-native applications. ~ Deep understanding of software... ...engineering practices, including effective use of AI to improve developer productivity and software quality. Delivers long-term architectural...Long-term contract
- £55k - £72k per annumEstimated...planning, estimation, and prioritisation activities. Contribute to solution design and development, focusing on back-end services and APIs in .NET C# within a cloud-based distributed architecture. Implement and maintain Infrastructure as Code (IaC) using AWS CDK (Python...Full-timeHybrid working
£19.5k - £35.5k per annum
...Salary: £19,500 - 35,500 per year Requirements: Hands-on experience developing Extend applications. Experience developing and coding within agile delivery environments. Experience working with web service technologies (REST, SOAP). Clear and effective communicator...Full-timeRemoteKainos
Belfast1 day ago- £53k - £69k per annumEstimated...of everything we build. Responsibilities: Help build and deliver end-to-end product features across the stack: UI, APIs, and data model. Develop in TypeScript on Node and use Pulumi to deploy AWS tech like Lambda, DynamoDB and API Gateway in a way that’s reproducible...Full-timeHybrid workingOn-siteRemoteFlexible hours
- £54k - £70k per annumEstimated...setting – Speechify has no office. Overview The Platform team owns the backend behind everything Speechify ships: the public TTS API, payments, subscriptions, auth, consumption tracking, and analytics — serving over 50 million users across iOS, Android, Mac, Chrome, and...On-site
- £60k - £77k per annumEstimated...experienced AI Technical Lead. The role requires experience designing, developing, and delivering AI solutions for large-scale organisations. We... ...or similar. ~ Develop and maintain AI-powered applications, APIs, and backend services. ~ Lead the development of proof-of-...Full-timeRemoteFlexible hours
£40k - £58k per annum
...and engineering practices. What you'll be doing * Designing, developing and maintaining software applications * Building new... ...Writing clean, scalable and maintainable code * Working with APIs, databases and third party integrations * Identifying and resolving...PermanentFull-timeHybrid workingOn-site- £47k - £62k per annumEstimated...standards and deliverables Design and build integrations using APIs, connectors and Azure services Work directly with customers... ...requirements Guide ALM, DevOps and deployment approaches Mentor developers and lead distributed teams Essential skills ~7+ years Power...Full-timeRemoteFlexible hoursShift work
- £59k - £76k per annumEstimated...Understanding of cross-browser compatibility ~ Familiarity with RESTful APIs, GraphQL and Websockets ~ Experience with CSS pre-processors e... ...) Worked within an Agile Cross-functional delivery team. Developing well tested software into low latency event driven production...Full-timeHybrid working
£62k - £102k per annum
...using OnLoad is useful Knowledge of equities products such as stocks, futures, options, and swaps is beneficial Knowledge of developing database code and processes in KDB is beneficial Responsibilities: Develop new functionality for our Global Market Data platform...Full-timeCitigroup
Sydenham, Belfast1 day ago£60k - £70k per annum
...You will be joining a growing technology team responsible for developing and scaling an innovative online platform used by a large and expanding... ...technologies. Experience developing and integrating REST APIs and third-party services. Strong understanding of application...PermanentTemporaryHybrid workingFlexible hours- £70k - £89k per annumEstimated...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...Full-timeHybrid workingOn-siteFlexible hours
£55k - £70k per annum
...consumer and transactional sector. They are looking for a Senior Developer to join their expanding technology team and work on high-traffic... ...with Laravel , including MVC, Eloquent, queues, middleware and APIs Excellent MySQL skills, including schema design, indexing...PermanentTemporaryHybrid workingOn-siteFlexible hours£49k - £66k per annum
...experience with DevOps practices and tools such as Docker, Kubernetes, Jenkins, and similar tools. Responsibilities: We design and develop high-quality software architecture and technical solutions that meet business requirements. We ensure the architecture is scalable...Full-timeHybrid workingVersion 1
Belfast1 day ago- £64k - £86k per annumEstimated...the Cloud Integration Group. The XFI team oversees the integration of Post Delivery Protection & Response threat defence software, via API, to the Microsoft or Google e-mail platforms, for both inbound and outbound. You will be joining the team at an exciting time, as the...Full-timeFlexible hours
