Performance Optimisation Jobs in Northern Ireland

1 to 25 of 54 Performance Optimisation Jobs in Northern Ireland

Data Management Specialist (Azure)

Belfast, Northern Ireland, United Kingdom
JR United Kingdom
narrow-right Job Views: 4 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: You will provide expert-level troubleshooting, root cause analysis, and performance optimisation for data platforms such as Azure SQL databases, Fabric Warehouse, Onelake, Databricks, and Azure Data Factory. Purview or another MDM tool is … 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, Onelake, Databricks, and Azure Data Factory. Document technical solutions, best practices, and More ❯
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Senior Software Engineer (Front End)

Belfast, Northern Ireland, United Kingdom
TP ICAP Group
tests using automation tools such as Selenium, Cypress, or similar Experience using build tools such as Webpack or Vite and configuration files Knowledge of performance optimisation techniques to optimise web performance and load times Knowledge of web security best practices to protect applications from vulnerabilities Appreciation of … It is critical that all staff discharge their risk management responsibilities when undertaking their role. Specific responsibilities are incorporated into employee objectives, and your performance against these objectives will be assessed as part of the firm’s performance management process. You will also be required to confirm that More ❯
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Software Engineer, Portfolio Management

Belfast, Northern Ireland, United Kingdom
H&R Talent
Linux environments that are hosted on their internal Openshift cluster. The three main elements of the position include: Designing and building new systems. Improving performance and increasing scalability. Continuously learning the latest technologies. Responsibilities: Taking responsibility for writing high-quality, testable code on various platforms. Performance optimisation More ❯
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Senior Engineer - Front End

Belfast, United Kingdom
Hybrid / WFH Options
VanRath
and accessible web interfaces using React , TypeScript , JavaScript , and CSS/HTML5 Apply structured UI/UX patterns with a focus on maintainability and performance Ensure consistent cross-browser experiences and responsive design Work with component libraries (e.g. Material UI , Ant Design ) and front-end tools (e.g. Webpack , Vite … test automation (e.g. Cypress , Selenium ) Collaborate with architecture, design, QA, and back-end teams in a full Agile delivery lifecycle Uphold best practices around performance tuning, security, and UI testing Take a hands-on role in feature ownership, code reviews, and mentoring junior engineers Essential Experience Strong commercial experience … front-end solutions in a production setting Expertise in building reusable UI components and responsive layouts Familiarity with automated testing tools and front-end performance optimisation Understanding of web security standards and full software development lifecycle Strong communication skills and the ability to work independently in a high More ❯
Employment Type: Permanent
Salary: GBP Annual
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Senior Full Stack C# .NET Developer

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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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Senior Frontend Engineer

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
Version 1
our digital products. Your role involves ensuring that the code aligns with these requirements and adheres to our architectural and front-end coding standards. Performance optimisation is key, and you'll employ best practices to enhance our applications. Additionally, you'll stay proactive by suggesting upgrades and updates … providing our employees with a comprehensive benefits package that prioritises their wellbeing, professional growth, and financial stability. Share in our success with our Quarterly Performance-Related Profit Share Scheme, where employees collectively benefit from a share of our company's profits. Strong Career Progression & mentorship coaching through our Strength More ❯
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MuleSoft Developer

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
Women in Tech UK
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 ❯
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Lead Oracle Data Engineer

Belfast, Northern Ireland, United Kingdom
JR United Kingdom
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 … leadership to team members. 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 Software Engineer

Belfast, Northern Ireland, United Kingdom
aPriori Technologies
front-end tooling like Lerna and Yarn, with knowledge of current best practices and async, reactive programming patterns. • Good understanding of data structures, web performance optimizations and limitations • You also could write automated comprehensive test suites at all levels of the architecture • Knowledge in event-driven architecture, including event More ❯
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Principal Software Engineer

Belfast, United Kingdom
Hybrid / WFH Options
VanRath
scale. What You'll Be Doing: Provide technical leadership across multiple product teams, setting direction and enforcing best practices Design and implement scalable, high-performance applications and APIs Participate in hands-on coding activities aligned with roadmap priorities (up to 50%) Define and evolve technical standards, architecture principles, and … .NET, Java, or similar languages Deep experience with SaaS platforms, public APIs, and distributed systems architecture Strong background in databases, caching, systems integration, and performance optimisation Experience in payment processing or financial services is a significant plus Proven ability to translate complex business requirements into scalable technical solutions More ❯
Employment Type: Permanent
Salary: GBP Annual
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Senior Data Analyst - 12 month Fixed Term Contract

Belfast, Northern Ireland, United Kingdom
JR United Kingdom
include IT support, broadband connectivity, telephone systems, and proactive cybersecurity protection. Modern Networks ensures business continuity through data backup and disaster recovery solutions, optimises performance by managing IT infrastructure, and enhances communications by monitoring and optimising network performance. They also help businesses achieve and maintain compliance with industry regulations … EPICs, Stories, Task, Issues, Bugs). Excellent stakeholder management, communication, and interpersonal skills. Skilled in data modelling, ELT pipelines, and SQL. Knowledge of cloud performance optimisation and cost management. Experience with the definition of data strategy, global data platform strategy, and development roadmaps aligned with the company’s More ❯
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Data Architect

Belfast, Northern Ireland, United Kingdom
Version 1
cloud infrastructure. Experience with multi-dimensional design, star schemas, facts and dimensions. Experience and demonstrated competencies in ETL development techniques. Experience in data warehouse performance optimization. Experience on projects across a variety of industry sectors an advantage. Comprehensive understanding of data management best practices including demonstrated experience with data More ❯
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Roku Developer

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 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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Lead Software Engineer

Belfast, UK
Hybrid / WFH Options
Wave Talent
Tech Stack: React, .NET, AWS You’ll bring: Proven expertise in React and .NET in production environments Strong experience with system design, observability, and performance optimisation Great communication and stakeholder engagement skills Background in financial, payroll, or reporting systems is a bonus Contract Details Day rate: TBC Length More ❯
Employment Type: Full-time
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Senior Fullstack Engineer (Django, React, Analytics, AWS)

Belfast, Northern Ireland, United Kingdom
JR United Kingdom
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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Blockchain Developer - Solidity

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. 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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Clinical Data Visualization & Reporting Analyst

Belfast, Northern Ireland, United Kingdom
JR United Kingdom
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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Power BI Developer - F&O

Belfast, Northern Ireland, United Kingdom
JR United Kingdom
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 optimization. Skills/Qualifications Knowledge and Skills Needed to Fulfil the Role: Solid understanding of Power BI, DAX, Power Query, and data modeling best More ❯
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Oracle UI Developer

Belfast, Northern Ireland, United Kingdom
JR United Kingdom
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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C++ Developer

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
Vanrath
test software solutions. Stay abreast of industry trends and emerging technologies to integrate new tools and methodologies. Actively participate in code reviews, troubleshooting, and performance optimization. Requirements: Proven experience as a C++ Developer, Financial Services experience is desirable Proficiency in software development methodologies, version control, and testing Excellent problem More ❯
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Dynamics 365 CE Solution Architect

Belfast, Northern Ireland, United Kingdom
JR United Kingdom
detailed technical design documentation, including data models, architecture diagrams, and system integrations. Provide leadership and mentorship to development teams, ensuring compliance with coding standards, performance optimization, and best practices. Partner with cross-functional teams to integrate CRM solutions with other business applications and platforms. What you’ll bring 5+ More ❯
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Website Manager

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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, Northern Ireland, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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

Lisburn, Northern Ireland, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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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