Permanent Performance Optimisation Jobs in Northern Ireland

1 to 25 of 61 Permanent Performance Optimisation Jobs in Northern Ireland

Principal Software Engineer

belfast, antrim, United Kingdom
Hybrid / WFH Options
Lorien
leads, so strong stakeholder management ability is crucial. Duties: Designing, developing, and optimising full-stack JavaScript systems and components (React, Node.js, Typescript) Scaling and performance optimisation of web front-end and interaction with API layers Resolve high-level, complex software challenges and optimise system performance Implement software … caching tools and techniques, e.g. Redis, etc Understanding of fundamental software development best practices, architectures and patterns Awareness of modern deployment methodologies Expertise in performance optimisation of web technologies Willingness to challenge process and existing ways of working or to truly own the domain you’re a part More ❯
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Data Management Specialist (Azure)

belfast, antrim, United Kingdom
Initialize
Data Management Specialist (Azure) - Newcastle/Hybrid You will provide expert-level troubleshooting, root cause analysis, and performance optimisation for data platforms,, such as Azure SQL databases, Fabric Warehouse and Onelake, Databricks, and Azure Data Factory. Purview or another MDM tool is highly desirable. Skills/experience Bachelor … initiatives. Work collaboratively with IT teams, business stakeholders, and external vendors to enhance data management capabilities. Provide expert-level troubleshooting, root cause analysis, and performance optimisation for data platforms,, such as Azure SQL databases, Fabric Warehouse and Onelake, Databricks, and Azure Data Factory. Document technical solutions, best practices More ❯
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Senior Full Stack C# .NET Developer

belfast, antrim, United Kingdom
Hybrid / WFH Options
WebX Systems Ltd
Skills & Experience 5+ years of commercial experience in C# and .NET. Expertise in: .NET Framework and WinForms Modern .NET (.NET 9) SQL Server (including performance optimisation) Front-end tech (HTML, CSS, JavaScript) Proven experience with application modernisation, including migrating legacy WinForms applications to modern web platforms (Blazor preferred More ❯
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MuleSoft Developer

Belfast
Hybrid / WFH Options
CGI
connectivity solutions using MuleSoft Anypoint Platform. • Create and maintain RAML and OpenAPI specifications for RESTful APIs. • Ensure best practices in API security, governance, and performance optimization. • Perform unit testing and integration testing to validate API functionality and reliability. • Troubleshoot and resolve technical issues in integration services. • Work with CI More ❯
Employment Type: Permanent
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Senior Software Engineer

belfast, antrim, United Kingdom
Hybrid / WFH Options
83zero
and building complex front-end features using modern JavaScript frameworks. · Collaborating with UX/UI designers and stakeholders to deliver seamless user experiences. · Ensuring performance, accessibility, and cross-browser compatibility. · Influencing architecture and contributing to product design discussions. · Promoting best practices through code reviews and mentorship. · Staying up to … software. Essential Experience · Significant background in SaaS product development. · Track record of delivering high-quality, user-focused features. · Version control (Git) and collaborative workflows. · Performance optimisation and responsive design implementation. Bonus Points For · Full-stack capabilities with Node.js or similar. · Familiarity with AWS or Azure services. · Experience with More ❯
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Lead Oracle Data Engineer

belfast, antrim, United Kingdom
developrec
candidate will lead a feature team responsible for ensuring the seamless migration and integration of Oracle databases, while upholding best practices in data integrity, performance, and security. This is a pivotal role for an experienced professional passionate about data engineering and transformational delivery. Key Responsibilities Lead the planning and … execution of Oracle database modernisation, conversion, and migration activities, ensuring alignment with project timelines and deliverables. Oversee database architecture assessments and performance optimisation efforts. Collaborate with development and architecture teams to improve data flow and streamline database operations. Conduct thorough testing and validation of migrated data to ensure … members. Essential Skills & Experience Extensive experience as an Oracle DBA with deep expertise in Oracle Exadata. Strong knowledge of Oracle Database architecture, tools, and performance tuning techniques. Proven track record with data migration methodologies and execution. Skilled in SQL and PL/SQL programming. Experience with database backup, recovery More ❯
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Senior AI Engineer - Scalable LLM Systems

belfast, antrim, United Kingdom
Hybrid / WFH Options
Circuit Medical
using Python, with experience in Django, FastAPI, or similar frameworks · Architect and maintain production-grade, multi-tenant systems with a focus on security and performance · Develop RESTful and asynchronous APIs for internal and external consumption · Ensure database performance and reliability with relational and vector database technologies Cloud & Infrastructure … Design and implement AWS-based cloud infrastructure using infrastructure-as-code approaches · Optimise system resources, cost, and performance in cloud environments · Implement robust monitoring, logging, and alerting systems · Maintain CI/CD pipelines for reliable deployment and testing LLM, Agents & AI Integration · Design, build and maintain AI-driven information … cloud services (preferably AWS) and infrastructure-as-code · Experience with containerisation, orchestration, and CI/CD pipelines · Understanding of database scaling, caching strategies, and performance optimisation · Familiarity with LLM technologies and latest utilisation methodologies · Strong understanding of software design principles and coding standards Preferred Skills and Capabilities · Experience More ❯
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Python Developer

belfast, antrim, United Kingdom
Signify Technology
and microservices leveraging Python and Kafka Collaboration : Partner with frontend developers to seamlessly integrate backend logic. Contribute to UI development using TypeScript and React Performance Optimization : Ensure applications are efficient, scalable, and dependable. Troubleshooting & Monitoring : Detect and resolve issues using tools Database Management : Design and manage data models and More ❯
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Roku Developer

belfast, antrim, United Kingdom
Hybrid / WFH Options
developrec
Overview: My client is a specialist engineering company that builds white label video streaming applications for global media brands. They focus on delivering high performance, scalable solutions across Roku, web, and mobile platforms. They are now looking for an experienced Roku Developer to join their team and work across … multiple branded streaming apps. This person will take the lead on feature development, performance optimisation, and ensuring alignment with Roku certification standards. Key Responsibilities: Build and deploy Roku applications using BrightScript and SceneGraph Configure and launch white-label apps for 18+ video streaming clients Lead development of major … features including templated views, DRM, and EPG Integrate ad tech (Roku Ad Framework) and analytics (Google Analytics) Drive performance enhancements, reducing load time, memory use, and CPU usage Required Skills: Strong experience with BrightScript and SceneGraph Track record of Roku app development and deployment Familiarity with Roku Advertising Framework More ❯
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Senior Data Engineer

belfast, antrim, United Kingdom
Cornwallis Elt
solutions are properly tested, documented, and meet business needs. Manage tasks and ensure agreed-upon delivery timelines. Key Skills & Experience: Expertise in database design, performance optimization, and data warehousing. Strong experience with Azure data technologies, including Azure Databricks, SQL Database, Data Factory, and T-SQL. In-depth understanding of More ❯
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Blockchain Developer - Solidity

belfast, antrim, United Kingdom
Hybrid / WFH Options
Solas IT Recruitment
backend systems. Full-Stack Development : Build and maintain scalable front-end and back-end systems using Node.js and React (or other JavaScript frameworks). Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯
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Technical Architect

belfast, antrim, United Kingdom
Hybrid / WFH Options
Advanced Resource Managers
security considerations. Evaluate, select, and implement VDI technologies (e.g., Citrix Virtual Apps and Desktops, VMware Horizon, Microsoft Azure Virtual Desktop). Ensure high availability, performance optimization, and disaster recovery of VDI environments. Collaborate with IT security, network, and application teams to ensure seamless integration and compliance. Provide technical leadership More ❯
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Website Manager (Belfast)

Belfast, UK
Hybrid / WFH Options
Hays
related field. At least 3 years' experience in website management or development (5 years if no formal qualification), including content creation, stakeholder engagement, and performance optimisation. Strong knowledge of CMS platforms, SEO best practices, Google Analytics (GA4), and UX/UI principles. Experience managing external digital agencies and working More ❯
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Website Manager

belfast, antrim, United Kingdom
Hybrid / WFH Options
Hays
related field. At least 3 years' experience in website management or development (5 years if no formal qualification), including content creation, stakeholder engagement, and performance optimisation. Strong knowledge of CMS platforms, SEO best practices, Google Analytics (GA4), and UX/UI principles. Experience managing external digital agencies and working More ❯
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Website Manager

newtownabbey, antrim, United Kingdom
Hybrid / WFH Options
Hays
related field. At least 3 years' experience in website management or development (5 years if no formal qualification), including content creation, stakeholder engagement, and performance optimisation. Strong knowledge of CMS platforms, SEO best practices, Google Analytics (GA4), and UX/UI principles. Experience managing external digital agencies and working More ❯
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Website Manager

finaghy, antrim, United Kingdom
Hybrid / WFH Options
Hays
related field. At least 3 years' experience in website management or development (5 years if no formal qualification), including content creation, stakeholder engagement, and performance optimisation. Strong knowledge of CMS platforms, SEO best practices, Google Analytics (GA4), and UX/UI principles. Experience managing external digital agencies and working More ❯
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Senior Machine Learning Ops Engineer

Belfast, United Kingdom
DailyPay
team in Belfast. You will play a crucial role in maturing and scaling our machine learning infrastructure and processes, ensuring the reliability, scalability, and performance of our ML models in production. This role requires a strong background in MLOps principles, cloud technologies (AWS), and a passion for building robust … Observability: Build and maintain comprehensive monitoring and alerting systems for our ML infrastructure and models, leveraging tools like DataDog to ensure system health and performance Collaboration and Mentorship: Collaborate effectively with data scientists, engineers, and other stakeholders. Provide guidance and support to junior team members Performance Optimization: Continuously … optimize ML model performance, data pipelines, and infrastructure to meet evolving business needs Security and Compliance: Ensure the security and compliance of our machine learning applications and data pipelines, adhering to industry best practices and regulations Problem Solving and Troubleshooting: Proactively identify and resolve issues related to ML model More ❯
Employment Type: Permanent
Salary: GBP Annual
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Senior Fullstack Engineer (Django, React, Analytics, AWS)

belfast, antrim, United Kingdom
Aegistech
models, and A/B testing frameworks . Deploy and monitor applications using AWS (EC2, S3, CloudFormation, ECS) . Ensure data security, compliance, and performance optimization. Requirements: 4+ years of experience in software engineering, with a focus on backend development. Experience building analytics and marketing tools (e.g., dashboards, tracking More ❯
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Clinical Data Visualization & Reporting Analyst

belfast, antrim, United Kingdom
Meet Life Sciences
integrated reporting and metrics development aligned with clinical and strategic goals. Participating in lifecycle and change management of analytics platforms. Contributing to system and performance optimizations. Mentoring junior team members and leading reporting development (advanced/expert levels only). Key Tools & Technologies Visualization Tools: Tibco Spotfire, Tableau, Power More ❯
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Network Engineer

belfast, antrim, United Kingdom
Hybrid / WFH Options
Prism Digital
using Wireshark, TCPDump, NetFlow to diagnose and resolve network issues Expertise in routing and switching in WAN/LAN architectures, load balancing, and network performance optimisation Nice to have skills: Automation and scripting with Python, Terraform, or Ansible Certifications: CCNA, CCNP, AWS/Azure/GCP networking certifications … scalable, secure network infrastructures across on-prem and cloud Manage and optimise firewalls, VPNs, routing, and switching for efficient connectivity Monitor and troubleshoot network performance to ensure high availability Enhance security by enforcing access controls, encryption, and compliance policies Collaborate with cloud and security teams to align network strategies More ❯
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Senior Frontend Developer

belfast, antrim, United Kingdom
Hybrid / WFH Options
Wave Talent
and frontend architecture experience Experience building reporting or data-intensive UI components Familiarity with best practices such as TDD, SOLID principles, clean architecture, and performance optimisation Bonus: knowledge of payroll, finance, or reporting systems Comfortable working remotely, collaborating across teams 💼 Contract Details Rate: £650 + p/d More ❯
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Full Stack Magento Developer

belfast, antrim, United Kingdom
WHD Consulting Ltd
experience Proficient in PHP Familiar with Git, Jira, Bitbucket, and agile processes. Solid problem-solving abilities and a collaborative mindset. Understanding of responsive design, performance optimisation, and cross-browser/device compatibility. If this exciting opportunity could be of interest - please let me know ASAP. Interviews can be More ❯
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Power BI Developer - F&O

belfast, antrim, United Kingdom
Element Materials Technology
the rollout of new Power BI capabilities and train users where necessary. Collaborate with IT Systems and Finance teams on data improvement initiatives and performance optimisation. Skills/Qualifications Knowledge and Skills Needed to Fulfil the Role: Solid understanding of Power BI, DAX, Power Query, and data modelling best More ❯
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Revenue Operations

belfast, antrim, United Kingdom
BMS Performance
alignment. Quota Allocation: Design and implement a data-driven quota allocation framework across sales and success teams, ensuring fair, clear, and scalable target distribution. Performance Optimisation: Analyse commercial productivity metrics and deliver insights that enable performance improvement and smarter resource planning. Forecasting & Strategic Support: Support long-range … global business during a period of strong commercial expansion. You'll operate in a strategic, data-driven environment and have the opportunity to influence performance and growth at scale. If you're passionate about data, strategy, and operational excellence - and looking to step into a high-impact role within More ❯
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Oracle UI Developer

belfast, antrim, United Kingdom
Oracle Contractors
Procurement, and Financials 🔸 Develop and expose REST/SOAP APIs while leveraging OCI services such as Functions, API Gateway, and Object Storage 🔸 Optimise integration performance, ensuring secure and scalable design with RBAC , encryption, and secure access 🔸 Monitor and troubleshoot integration issues proactively, ensuring high system reliability and efficiency 🔸 Collaborate … developing and consuming REST/SOAP web services ✅ Advanced knowledge of OCI Services : API Gateway, Functions, Object Storage, Compute ✅ Strong problem-solving skills and performance optimisation expertise This is a high-impact role offering the opportunity to shape integration strategy across a mission-critical Oracle Cloud programme. About More ❯
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