8 Sr Front End Developer jobs in Ireland

Job Description At JP Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions of customers in the US, we have been rapidly expanding our presence in the UK and soon across Europe. We have been building the

**Lead Developer**
By Joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress.
**Team/Role Overview**
This role leads an experienced engineering team to implement new or revised application systems in coordination with the Issuer Services Technology team.
The Issuer Services business has aggressive business growth goals for the next 3-5 years and has made considerable additional investments in Technology, including quadrupling the size of the technology organization during the past few years. This role is critical to ensure our project oversight and delivery of solutions to the Operations and the Front Office businesses are best in class and scalable to continue supporting growth within the business and our internal technology organization.
**What you'll do**
An ideal candidate has a passion for technology with a strong capability in leading and directing our development teams. S/he is a senior hands-on technical lead with proven track record leading engineering teams and managing projects with acute awareness and accountability for financial and risk related objectives. S/he has strong technical and architectural skills and proactively contributes to the new technical vision and engineering best practices.
+ You should be hands on with strong analytical and technical ability with several years of experience. Previous experience involved with complex medium to large projects in a dynamic financial environment is desirable.
+ Willing to learn new techniques, particularly, low code platforms like Appian
+ There is a requirement to lead day to day delivery work and clearly set out a strategic architectural vision and identify project/program delivery risks and work on risk mitigation.
+ You should have good analytical skills to filter, prioritize and validate potentially complex material from multiple sources and employs skills and knowledge of the business to develop creative solutions to meet client and business needs.
+ You will be required to work on complex and variable issues with significant potential impact, weighing various alternatives and stabilizing potentially conflicting needs.
+ Consider budget implications and make appropriate strategic decisions to reduce Citi's risk exposure.
**What we'll need from you:**
+ Experience of Java, JavaScript/Angular
+ Experience in Appian is a plus
+ Provide strategic influence and exercise control over resources, budget management and planning while monitoring delivery and end results
+ Manage staff and vendors/contractors to accomplish established goals and conduct personnel duties for team (e.g., performance evaluations, career guidance/mentoring, hiring and disciplinary actions)
+ End to end staff and delivery management for several of the most critical application platforms utilized by Issuer Services
+ Drive the strategic recombination of platforms and applications to align with Digital First and future state objectives
+ Confirmed experience of crafting and delivering successful complex solutions in an enterprise production environment.
+ Experience in working on multiple technologies and medium to complex systems, well versed with design standards and framework.
+ Superb communication, great verbal and written skills and ability to learn fast.
+ Ability to work in a demanding and fast paced environment. Hard-working and highly motivated individual.
+ Self-starter who is passionate for learning about new tools and technologies; Ability to work both independently, with other team members, and across teams.
+ Experience with Agile and all aspects of the SDLC, and DevOps processes
+ Experience with Spring / ORM framework, and database
+ Bachelor's degree/University degree or equivalent experience, preferably in a Computer Science or related field.
**What we can offer you**
By joining Citi Dublin, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed) and enjoy a whole host of additional benefits that support you (and your family) to be well, live well and save well. Discover more here.
Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self every day. We want the best talent around the world to be energised to join us, motivated to stay, and empowered to thrive.
**Sounds like Citi has everything you need? Then apply to discover the true extent of your capabilities.**
#LI-SM9
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**Job Family Group:**
Technology
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**Job Family:**
Applications Development
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**Time Type:**
Full time
---
**Most Relevant Skills**
Please see the requirements listed above.
---
**Other Relevant Skills**
For complementary skills, please see above and/or contact the recruiter.
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_Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law._
_If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review_ _Accessibility at Citi ( _._
_View Citi's_ _EEO Policy Statement ( _and the_ _Know Your Rights ( _poster._
Citi is an equal opportunity and affirmative action employer.
Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.

The Big Data Lead Developer is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities.
**Responsibilities:**
+ Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
+ Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
+ Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement
+ Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality
+ Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems
+ Ensure essential procedures are followed and help define operating standards and processes
+ Serve as advisor or coach to new or lower level analysts
+ Has the ability to operate with a limited level of direct supervision.
+ Can exercise independence of judgement and autonomy.
+ Acts as SME to senior stakeholders and /or other team members.
**Qualifications:**
+ 5-8 years of work experience with Big Data technologies, such as Spark (Scala/Python), Kafka streaming, Hadoop, HDFS, and solid understanding of Big Data architecture
+ Good understanding on data file formats, Impala, Hadoop, Parquet, Avro, Iceberg, etc.
+ Experience with web services with Kubernetes, and Version control/CI/CD processes with git, Jenkins, harness, etc.
+ Public cloud experience is preferred, preferably AWS.
+ Strong data analysis skills and the ability to slice and dice the data as needed for business reporting
+ Experience working in an agile environment with a fast paced changing requirements.
+ Excellent planning and organizational skills
+ Strong Communication skills
+ Experience in systems analysis and programming of software applications
+ Experience in managing and implementing successful projects
+ Working knowledge of consulting/project management techniques/methods
+ Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements
**Education:**
+ Bachelor's degree/University degree or equivalent experience
**What we can offer you**
By joining Citi Dublin, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed) and enjoy a whole host of additional benefits that support you (and your family) to be well, live well and save well. Discover more here.
Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self every day. We want the best talent around the world to be energised to join us, motivated to stay, and empowered to thrive.
**Sounds like Citi has everything you need? Then apply to discover the true extent of your capabilities.**
---
**Job Family Group:**
Technology
---
**Job Family:**
Applications Development
---
**Time Type:**
Full time
---
**Most Relevant Skills**
Please see the requirements listed above.
---
**Other Relevant Skills**
For complementary skills, please see above and/or contact the recruiter.
---
_Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law._
_If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review_ _Accessibility at Citi ( _._
_View Citi's_ _EEO Policy Statement ( _and the_ _Know Your Rights ( _poster._
Citi is an equal opportunity and affirmative action employer.
Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.

Azure Senior/Lead Developer Location IE-Cork Job ID Category Engineering Position Type Regular Full-Time Overview Quest Software is excited to welcome an experienced software developer to our agile development team in Cork, Ireland. If youre passionate about innovation and eager to work on cutting-edge technology, this is the perfect opportunity for you! Join our global team and contribute to building commercial software that simplifies and enhances the management of critical enterprise data. We leverage serverless cloud-native SaaS solutions on the Microsoft Azure platform, ensuring you work with the latest technologies. In this role, you will be responsible for designing, developing, and successfully implementing software using the latest best practices. Youll thrive in a highly agile SCRUM team, collaborating with talented professionals and utilizing state-of-the-art coding environments. Be part of a forward-thinking team that values creativity, collaboration, and continuous improvement. If youre ready to make a significant impact and drive the future of enterprise software, we want to hear from you! Responsibilities You will be an important part of a R&D team building serverless cloud native SaaS solutions using the latest technologies in the Microsoft Azure platform You will build commercial products that work across numerous Microsoft technologies including Entra ID, Office 365, Active Directory, etc. You will be a member of an agile SCRUM team and be motivated to produce high quality code that meets business requirements You will take on design activities for components and lead ownership of their success Qualifications You should possess a computer science undergraduate degree or equivalent You should have a minimum of 8 years experience working in software development You should have experience of Full Stack Development C#/.NET Core You should have experience working with Azure Kubernetes Service You should have experience working with Docker and containers You should have experience in writing quality code with techniques such as unit testing, mocking, automation, integration testing, and code coverage You should have a good understanding of modern software practices including design patterns, SOLID principles, coding standards, and agile software development practices You should have a solid understanding of building scalable web applications using WebAPI, RESTful API design You should have developed and maintained CD/CI pipelines for build and deployment of services and components using Azure DevOps (preferred) or similar systems You should have experience with Azure services such as Cosmos DB, Azure Service Bus, Azure Storage, Azure Key Vault You should be able to produce and document designs and specifications for new features and services You should have experience working with multiple agile development teams You should possess excellent verbal and written communication skills You should have good interpersonal skills and ability to work well in a team environment Nice to Have: Experience with Active Directory or Entra ID Proficiency in PowerShell, ARM Templates, Terraform, Bicep Experience in working with Docker and containers Experience working with Azure Data Explorer Experience with AI frameworks, models and technologies such OpenAI Experience using AI coding assistant GitHub Copilot Full Stack development using tools such as Web Assembly, JavaScript, HTML5 Serverless development using Azure Functions or AWS Lambda Experience building Cloud Native applications using Azure or AWS using PaaS services Experience with claims-based authentication (SAML/OAuth/OIDC), JWT, MFA, and RBAC Secure Web Development Practices including OWASP and SANS Top 25 Company Description? At Quest, we create and manage the software that makes the benefits of new technology real. Companies turn to us to manage, modernize and secure their business, from on-prem to in-cloud, from the heart of the network to the vulnerable endpoints. From complex challenges like Active Directory management and Office 365 migration, to database and systems management, to redefining security, and hundreds of needs in between, we help you conquer your next challenge now? Were not the company that makes big promises. Were the company that fulfills them? Were Quest: Where Next Meets Now? Why work with us? Life at Quest means collaborating with dedicated professionals with a passion for technology? When we see something that could be improved, we get to work inventing the solution? Our people demonstrate our winning culture through positive and meaningful relationship? We invest in our people and offer a series of programs that enables them to pursue a career that fulfills their potential? Our team members health and wellness is our priority as well as rewarding them for their hard work? Quest is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances?

**Our Purpose**
_Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._
**Title and Summary**
Lead React Developer
Overview
Mastercard Developers ( is the single platform for Mastercard partners to access a diverse range of

**Job Description**
Design, devPrincipal Software Engineer (Performance & Efficiency - OCI Core Engineering)
Location:
UK / Ireland / Europe - Remote-friendly (subject to Oracle HR policy)
Note: Dublin and Czech Republic are considered key OCI hubs in Europe.
Organization:
OCI Energization / Technical Strategy Team
Level:
IC4 or IC5 preferred
(IC3 candidates with exceptional skills will also be considered)
About the Team:
This team is part of a specialized technical strategy group within Oracle Cloud Infrastructure (OCI) focused on efficiency, performance improvements, and architectural excellence across core OCI services.
Rather than building specific customer-facing services, this team partners with other internal service teams (e.g., Spot, Storage, Multi-cloud) to analyze, improve, and optimize the performance, throughput, latency, and cost-efficiency of those services.
The mission includes:
* Enhancing service performance
* Reducing resource consumption
* Identifying architectural bottlenecks
* Improving infrastructure and code-level efficiency
* Supporting OCI's next-generation infrastructure initiatives
Key Responsibilities:
* Work with OCI service teams to identify and resolve performance bottlenecks.
* Perform in-depth system analysis across software and infrastructure layers.
* Lead design discussions to improve service performance and architecture.
* Deliver efficiency improvements that translate to tangible cost savings.
* Build internal tooling or frameworks for benchmarking, profiling, and optimization.
* Write clean, efficient, and well-tested code in Java and/or systems-level languages.
* Produce detailed reports and recommendations for service teams and leadership.
* Contribute to OCI's technical strategy on cloud infrastructure efficiency.
Minimum Qualifications:
* 10+ years of hands-on engineering experience in high-scale environments.
* Strong proficiency in Java (core development, tuning, debugging).
* Deep understanding of system-level performance (latency, throughput, memory).
* Experience working in Linux environments (as a developer, not sysadmin).
* Familiarity with containerized environments and OCI/Kubernetes-based deployments.
* Demonstrated experience with profiling tools, benchmarking, and performance optimization.
* Experience with distributed systems or cloud service architecture.
* Ability to work independently and collaborate with remote global teams.
Preferred Qualifications:
* Background in performance engineering roles (e.g., bottleneck analysis, profiling).
* Experience analyzing infrastructure cost vs. compute performance trade-offs.
* Familiarity with OCI or other major cloud providers (AWS, GCP, Azure).
* Understanding of Linux kernel behavior and low-level debugging.
* Systems programming experience in C/C++ is a plus.
* Track record of delivering efficiency gains in large-scale environments.elop, troubleshoot and debug software programs for databases, applications, tools, networks etc.
**Responsibilities**
As a member of the software engineering division, you will take an active role in the definition and evolution of standard practices and procedures. You will be responsible for defining and developing software for tasks associated with the developing, designing and debugging of software applications or operating systems.
Career Level - IC4
**About Us**
As a world leader in cloud solutions, Oracle uses tomorrow's technology to tackle today's challenges. We've partnered with industry-leaders in almost every sector-and continue to thrive after 40+ years of change by operating with integrity.
We know that true innovation starts when everyone is empowered to contribute. That's why we're committed to growing an inclusive workforce that promotes opportunities for all.
Oracle careers open the door to global opportunities where work-life balance flourishes. We offer competitive benefits based on parity and consistency and support our people with flexible medical, life insurance, and retirement options. We also encourage employees to give back to their communities through our volunteer programs.
We're committed to including people with disabilities at all stages of the employment process. If you require accessibility assistance or accommodation for a disability at any point, let us know by emailing or by calling in the United States.
Oracle is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans' status, or any other characteristic protected by law. Oracle will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.

Senior / Lead Oracle Developer (PL/SQL) - Daily Rate Contract Positions - Hybrid-Working Model I am currently recruiting for 2x Senior and Lead Level Oracle PL/SQL Developers for some long-term daily rate contractor positions. Excellent opportunities to work with some of the top Oracle Developers in Ireland on global enterprise level applications. Responsibilities: Hands on senior developer, leading global teams, responsible for the design and development of technology platform solutions Design, development and support of the End to End solution, in line with over-arching architecture and technology blueprint Planning, coordinating, and execution of technology delivery within an agile framework Provide technical thought leadership based on experience building multiple software solutions Create frameworks, interfaces and complex components for team(s) to utilize and develop Constantly looks for better ways of solving technical problems and designing the solution Supports and mentors the team on design and best practices for high code performance - e.g. code / design reviews Ensure development team efficiency and looks for ways to improve Helps define the technology tool stack for the solution Contributes to test strategy creation and automation of test suites Ensure best practice delivery within Agile SDLC framework in line with the enterprise policies and standards Proven track record in software delivery management with 10+ years software development experience Key Technologies used: Oracle, PL/SQL, Informatica, Angular, Java, Spring, Autosys,and good knowledge of other emerging technologies Experience of interfacing with 3rd party vendor platforms Ability to troubleshoot and resolve complex technical issues Ability to create reusable components that can be leveraged across the enterprise Strong leader, capable of guiding tech team to implement technical designs Ability to face off to and build strong relationships with business and technology partners Excellent understanding of SDLC, Agile methodologies and JIRA framework Experience in Continuous Integration build/ deployment and toolsets e.g. Jenkins Experience with Unit Test Frameworks Experience with Linux including shell scripting. ** Live Roles - Apply for immediate consideration ** If you are interested in these positions please apply or contact in strictest confidence. Please note: We have a number of similar positions currently, and in the future, which we would like to discuss with you should you indicate your interest in this role. When we receive your application for this role, we will contact you to advise you of our process for other similar positions. Stelfox is fully compliant with GDPR regulations and you can read more in our privacy policy here: Your shared data will not be disclosed or transferred to a third party data controller or data processor located outside the EEA unless we have obtained your express consent. We look forward to working with you.