12 of 12 Permanent API Design Jobs in Northern Ireland

Remote Senior Software Engineer

Hiring Organisation
Turing
Location
Belfast, UK
Employment Type
Full-time
Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … . Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment: flexible engagement ...

Lead Dotnet Developer

Hiring Organisation
Ocho FC
Location
Belfast, Northern Ireland, United Kingdom
platforms * Overhaul monolithic systems into scalable APIs, microservices and event-driven architectures (Azure, AWS) * Work closely with UI and backend architects to align system design, scalability and performance * Introduce and promote AI-enabled engineering practices such as Copilot and GPT-based tooling for efficiency and quality improvements Technical Leadership … evolution, including cloud migration, containerisation (Kubernetes) and automation initiatives * Diagnose and resolve complex performance issues across large-scale systems * Champion software craftsmanship, TDD, BDD, design patterns and scalable coding practices Team Management & Engineering Culture * Manage and mentor cross-functional engineering teams, supporting growth, performance and delivery excellence * Build engineering ...

Medior Software Engineer

Hiring Organisation
Parent TEST TJ Company 1
Location
Enniskillen, County Fermanagh, Northern Ireland, United Kingdom
Employment Type
Permanent
Join a global tech innovator driving digital transformation in the legal industry. This is your opportunity to design and build cutting-edge cloud-native solutions that power seamless integrations worldwide. Key Responsibilities: Develop and enhance scalable, resilient microservices in a cloud-native environment Design and implement reusable, stable … standards Drive innovation by contributing new ideas and approaches to software design. Key Requirements: Proven experience with C#, .NET, and .NET Core (Microservices, Web API, MVC, SQL Server) Proven experience in CI/CD, Unit Testing, and REST API design Strong knowledge of design patterns ...

Full Stack Node.js Developer - Must have previous government experience

Hiring Organisation
Amber Labs
Location
Belfast, UK
Employment Type
Full-time
layers, contributing to mission-critical digital services used across the UK and internationally. What You'll Do As a Full Stack Developer, you'll design and develop robust APIs and backend services using Node.js, while also contributing to frontend interfaces that deliver seamless user experiences. You'll work within … deliver resilient, maintainable solutions. Responsibilities Develop and maintain backend services and APIs using Node.js Build responsive, accessible frontend components using modern JavaScript frameworks Design event-driven systems using Kafka and SQS Implement infrastructure automation with Terraform Deploy and manage services in AWS (ECS, Cognito, SQS) Containerise applications using Docker ...

Enterprise Architect

Hiring Organisation
CitNOW Group
Location
Belfast, UK
Employment Type
Full-time
enterprise architecture framework that spans all acquired businesses Define standards and blueprints for integration, data architecture, and core enterprise systems Integration & Consolidation Lead the design of integration strategies to connect disparate platforms, applications, and processes across the group and with external third-parties Oversee consolidation of legacy systems while … ensure consistency, quality, and accessibility of information Implement governance frameworks for master data management, analytics, and compliance with industry regulations Traditional Enterprise Architecture Design and maintain models for business, application, and technology architectures Ensure scalability, security, and resilience across infrastructure and software platforms Innovation & Transformation Identify opportunities to leverage ...

Observability Engineer (Custom Data Integration)

Hiring Organisation
Ascendion
Location
Belfast, UK
Employment Type
Full-time
Title: Observability Engineer (Custom Data Integration) Location: Remote(UK) Key responsibilities Design and implement observability frameworks: Integrate and manage monitoring, logging, and tracing for cloud-native and on-premises systems. Data integration and ingestion: Build systems to collect and ingest data from various sources, often through APIs, and manage … usage. Required skills and qualifications Technical skills: Proficiency in Prometheus, Grafana, and Dynatrace. o Experience with time-series data, including PromQL. Strong knowledge of API design, data modeling, and data pipelines. Expertise in scripting and backend development (e.g., Python, Go, Java). Experience: Proven experience designing and scaling ...

Senior Implementation Architect

Hiring Organisation
Supermetrics
Location
Belfast, UK
Employment Type
Full-time
Execution. Act as the critical link between customer business objectives and technical implementation, ensuring the platform is deployed effectively and delivers maximum value. Design Scalable Solutions. Architect data integrations, API workflows, and platform customizations that align with customer goals and integration architecture. Drive Customer's Technical Success. … scalable implementation methodologies, templates, and best practices. This position is for you if you have... Extensive knowledge of JavaScript (for client and server environments), API design and integration, SQL, and database management, coupled with a background in data-driven solutions and system integrations. Proven ability to translate complex ...

Senior ML Engineer/Data Scientist

Hiring Organisation
Quantori
Location
Belfast, UK
Employment Type
Full-time
solution and code interpreter Experience with Multi-agent system architecture (e.g., LangGraph, ToolUniverse) Experience with MCP tool integration and orchestration Experience with API design and integration Experience with tool wrapping and interoperability Experience with Error handling and debugging (agentic workflows, logs) Experience with Modular system design, performance ...

Lead Product Manager

Hiring Organisation
ZONTAL
Location
Belfast, UK
Employment Type
Full-time
understand real-world workflows across R&D, QC, and manufacturing. Run structured discovery (interviews, ride-alongs, lab visits, pilots) to understand sample lifecycles, assay design, automation constraints, and regulatory requirements. Technical Product Ownership Own product requirements from problem statement through detailed specifications: user stories, data models, and non-functional … industry standards, such as Allotrope Simple Model (ASM), and related standards to create interoperable, open systems. Work with internal and external SMEs to design and evolve semantic models, controlled vocabularies, and mappings between lab systems and the ZONTAL data backbone. Ensure alignment with FAIR principles, ALCOA+, 21 CFR Part ...

Security Integrations Engineer - £80k base - Belfast

Hiring Organisation
Realtime Recruitment
Location
Belfast, UK
Employment Type
Full-time
enterprise SaaS company that's redefining how global organisations secure and connect their devices. They're hiring for a Enterprise Integrations Engineer to help design, build and scale the integrations powering their enterprise ecosystem. This is a hands-on, highly cross-functional role that bridges engineering, product, and customer … success. You'll work on cutting edge API integrations, helping customers embed security , automation, and observability into their environments at scale. What you'll do: Design and develop integrations with enterprise systems - MDMS, SIEMs, SOAR. Build and maintain APIs, SDKs, and automation frameworks. Collaborate with enterprise customers. Ensure ...

Security Integrations Engineer - £80k base - Belfast

Hiring Organisation
Realtime Recruitment
Location
Newtownabbey, Co. Antrim, UK
Employment Type
Full-time
enterprise SaaS company that's redefining how global organisations secure and connect their devices. They're hiring for a Enterprise Integrations Engineer to help design, build and scale the integrations powering their enterprise ecosystem. This is a hands-on, highly cross-functional role that bridges engineering, product, and customer … success. You'll work on cutting edge API integrations, helping customers embed security , automation, and observability into their environments at scale. What you'll do: Design and develop integrations with enterprise systems - MDMS, SIEMs, SOAR. Build and maintain APIs, SDKs, and automation frameworks. Collaborate with enterprise customers. Ensure ...

Security Integrations Engineer - £80k base - Belfast

Hiring Organisation
Realtime Recruitment
Location
Lisburn, Co. Antrim, UK
Employment Type
Full-time
enterprise SaaS company that's redefining how global organisations secure and connect their devices. They're hiring for a Enterprise Integrations Engineer to help design, build and scale the integrations powering their enterprise ecosystem. This is a hands-on, highly cross-functional role that bridges engineering, product, and customer … success. You'll work on cutting edge API integrations, helping customers embed security , automation, and observability into their environments at scale. What you'll do: Design and develop integrations with enterprise systems - MDMS, SIEMs, SOAR. Build and maintain APIs, SDKs, and automation frameworks. Collaborate with enterprise customers. Ensure ...