Jobs in Ireland

Hands On Java Developer in Ireland

43 active opportunities · Updated October 2026

Explore current hands on java developer jobs across Ireland. Filter by work mode, employment type, experience, department, date posted and distance.

S
📍 Ireland· Full-time
✓ High-confidence listingCompany trend -73.9%
Quick readStrong listing-quality and freshness signals

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team The Proactive Threat team is responsible for identifying vulnerabilities and security weaknesses across Stripe's systems, applications, networks, and cloud infrastructure — before adversaries do. We operate as a hybrid offensive function: conducting penetration testing, emulating real-world threat actors through red team operations, and partnering closely with our defensive security teams to validate detection capabilities and improve Stripe's overall security posture. We are builders first. Our team develops custom tooling, automation frameworks, and internal platforms that scale our offensive capabilities and enable repeatable, high-fidelity assessments. We believe the best offensive security engineers are equal parts hacker and engineer. The team is distributed across the United States, primarily operating in Eastern and Pacific time zones, and collaborates regularly with security, engineering, and product stakeholders across Stripe — including teams in Europe and Asia. What you'll do As an Offensive Security Engineer on the Proactive Threat team, you will simulate the tactics, techniques, and procedures (TTPs) of real-world adversaries to uncover security risks across Stripe's products and infrastructure. You'll conduct hands-on penetration testing, lead red team engagements, and collaborate with blue team counterparts to validate and improve detection and response capabilities. Your work will directly influence how Stripe builds, ships,

PythonAWSAzureGCP
S
📍 Dublin, Ireland· Full-time
✓ Quality checkedCompany trend -73.9%

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies - from the world’s largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team Abuse Operations is the front-line incident response and remediation function handling active product abuse and fraud impacting Stripe and its merchants. This multi-disciplinary group, spanning Incident Managers, Investigators, Forward Deployed Security Engineers, and Data Scientists, neutralizes active attacks, gathers requirements for operational tooling, and leads incidents. The team works directly with impacted merchants to resolve incidents and policy abuse rapidly. Operating primarily across Eastern, Pacific and Western European time zones, these team members regularly coordinate with global stakeholders across the world. What you’ll do In this role, you will play a critical part in safeguarding our financial ecosystem through two main pillars: actively responding to live fraud and abuse incidents as a hands-on security engineer, and serving as a key bridge between incidents and merchants to help them remediate threats, improve security posture, and protect their accounts. Leveraging your technical depth in fraud, abuse, and security engineering, you will investigate high-risk accounts, perform post-incident analyses, gather operational requirements, and drive agentic response capabilities ensuring we neutralize threats with speed and precision while elevating Stripe's product integrity function. Responsibilities Respond to live fraud and abuse incidents as a Forward Deployed Security Engineer, investigating high-risk activity, neu

PythonSQLGitAI
S
📍 Dublin, Ireland· Full-time
✓ Quality checkedCompany trend -73.9%

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team Strategy and Analytics maximizes and accelerates Operations' ability to make Stripe work for our users. We aspire to be the COOs for Stripe Ops, working cross-functionally with global teams to help run the day-to-day business and articulate and achieve the longer-term, high-effort, high-value strategic priorities. We take a data-driven approach that combines strategy and analytics to help Ops leaders solve their most complex and most important issues while also driving the business planning and operational cadence end-to-end, from strategy to goal-setting to execution. What you'll do In this role, you'll be the go-to expert for your business area. You'll be hands-on and responsible for delivering critical insights, ensuring data-driven decision-making is at the core of what we do. You'll also partner with leadership to drive business strategy, planning, goal-setting, and performance tracking. You'll also scope and lead business-critical projects and execute on strategic initiatives. Responsibilities Wrangle large, highly complex datasets using SQL into actionable insights and become the data expert for your business area. Develop metrics and large-scale dashboards to track the health of our user-facing and internal teams. Perform analyses using SQL and other analytical tools and languages, identify trends, conduct research, build models, all to deliver objective, critical insights that can inform leadership of opportunities, risks, and strat

M
📍 Cork, Ireland; Dublin, Ireland· Full-time
✓ Quality checkedCompany trend -92.6%

Join the MongoDB Server Query team, and help us build a world-class distributed open source query engine. Our team plays a crucial role in the experience and performance of data processing. We are responsible for the MongoDB Query Language and the lifecycle of each query, from parsing to optimization to plan selection and finally execution. This also includes our geospatial search and update subsystems. Our global team is growing fast. In North America, we have a presence across the US and Canada including New York, West Coast, Toronto. In Europe, we have a presence in Dublin, Germany, France, Netherlands, UK, Bulgaria, Spain and Italy currently. We support office-based and remote work and align projects with convenient work hours for each time-zone. We have tons of interesting problems to solve with direct impact on users for transactional, time-series and analytical workloads. We need your help to design and build the heart of a distributed, flexible schema, document database. We are looking to speak to candidates who are based in Dublin or Cork for our hybrid working model. Candidate Profile 3+ years of experience in data intensive environments Hands-on experience building industrial-strength software Solid computer science fundamentals, with strong competencies in data structures, algorithms, and software design/architecture Experience with large code bases B.Sc in Computer Science or similar field, or equivalent practical experience Experience in C++ and in developing database systems is a plus Interest in the theory and practice of database query engines. Hands-on experience or M.Sc./Ph.D in the domain is a plus Position Expectations Understand and improve current functionality of the MongoDB query engine Identify, design, implement, test, and support new features related to query performance and robustness, query language enhancements, diagnostics for query performance problems, and integration with other products and tools Work with other engineers to

MongoDBAWSAzureRest
M
📍 Dublin, Ireland· Full-time
✓ Quality checkedCompany trend -92.6%

At MongoDB, we are disrupting industries and equipping developers with the tools to create extraordinary applications that impact daily lives. As the leading developer data platform and the pioneering database vendor to execute an IPO in over two decades, we offer an environment at the cutting edge of creativity and innovation. The international data management software landscape is vast and expanding swiftly. Data from IDC indicates the global database management systems (DBMS) software market was valued at roughly $82 billion in 2023 and is projected to scale to approximately $200 billion by 2030, demonstrating an exceptional compound annual growth rate. We are looking to speak to candidates who are based in Dublin or Cork for our hybrid working model. The Role & Team Overview We are seeking an accomplished technical leader to join our Technical Services organization as the head of the EMEA Incident & Escalation Management teams. In this critical capacity, you will guide the teams responsible for ensuring our clients can smoothly operate MongoDB at scale and seamlessly navigate any technical hurdles. This position demands a leader who can maintain a hands-on approach—taking direct ownership of high-profile escalations that require coordinated corporate responses—while concurrently expanding the team, refining processes, and advancing strategic objectives within a global critical situations management framework. Team Overview: As an integral component of the Customer Organization, Technical Services boasts more than 500 global members across worldwide offices. We maintain industry-leading customer satisfaction metrics through a 24x7x365 'follow-the-sun' support framework, with specialized regional teams across the Americas, EMEA, and APAC. The EMEA team operates out of hubs including Dublin, Milan, Barcelona, and Tel Aviv. Core Responsibilities Collaborating with global leadership to architect and execute strategic plans for critical situations management,

SQLMongoDBAWSAzure
O
Relocation support. Relocation assistance is stated. This does not establish visa sponsorship.
📍 Dublin, Leinster, Ireland· Full-time
✓ Quality checkedCompany trend -100%

About the Team The Solutions Engineering team consists of trusted technical advisors who help organizations adopt OpenAI’s technology safely, effectively, and responsibly. We partner closely with customers, Sales, Product, Engineering, Research, and Security to translate frontier AI capabilities into practical workflows that create measurable impact. Cybersecurity is one of the most important areas where AI can help. As frontier models become increasingly capable of reasoning across code, logs, infrastructure, vulnerabilities, and security evidence, customers need expert guidance to evaluate and deploy these systems safely. Our Field Security Specialists help security leaders and practitioners apply OpenAI models, APIs, Codex, agentic workflows, and emerging cyber capabilities to real defensive challenges. About the Role We are looking for a Manager of Field Security Specialists to build and lead our customer-facing cyber solutions engineering function. This is a hands-on leadership role for someone who can develop an exceptional team while remaining close to the technology and our customers. You will establish the operating model for the function, raise the quality of specialist engagements, and personally support our most strategic and technically complex customer opportunities. You will work across CISO-level strategy, practitioner-level cybersecurity challenges, and hands-on solution design. Your team will help customers explore workflows including application security, secure software development, vulnerability management, threat modeling, cloud and identity security, SOC operations, detection engineering, incident response, and security validation. This is not an internal CISO or corporate incident-response role. It is a customer-facing leadership opportunity focused on helping defenders achieve safe, measurable outcomes with frontier AI. In this role, you will: Hire, coach, develop, and lead a high-performing team of Field Security Specialists. Establish the

AWSCI/CDGitRest
PE
📍 Dublin, Ireland· Full-time· Hybrid
✓ Quality checked

Shape the Future with Dun & Bradstreet At Dun & Bradstreet, we believe data has the power to create a better tomorrow. As a global leader in business decisioning data and analytics, we help companies worldwide grow, manage risk, and innovate. Since 1841, businesses have trusted us to turn uncertainty into opportunity. We’re a diverse, global team that values creativity, collaboration, and bold ideas. Are you ready to make an impact and help shape what’s next? Join us! Explore opportunities at dnb.com/careers. We are seeking an experienced and visionary AI Software Architect to lead the design and delivery of enterprise-scale AI and GenAI solutions. This role requires a strong foundation in software engineering, deep expertise in AI/ML frameworks, and a strategic mindset to architect secure, scalable, and high-performance systems. The ideal candidate will have a proven track record of hands-on development and architectural leadership across diverse AI domains.

F
📍 Dublin, Ireland· Full-time
✓ Quality checkedCompany trend -100%

Fin is the AI Customer Agent company on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey – from service, to sales, to ecommerce. Powered by our own AI models, Fin resolves complex customer issues end-to-end across every channel, with minimal set-up and integration. Fin can also be combined with our natively integrated Intercom help desk for one single system that is designed to meet the needs of modern day support teams. Founded in 2011, Fin became one of the fastest growing companies and remains one of the largest private software companies in the world with nearly 30,000 global businesses using our products to transform their customer support. Driven by our core values, we push boundaries, build with speed and intensity, and relentlessly deliver incredible value to our customers. What's the opportunity? Fin's Machine Learning team is responsible for defining new ML features, researching appropriate algorithms and technologies, and rapidly getting first prototypes in our customers’ hands. We are an extremely product focussed team. We work in partnership with Product and Design functions of teams we support. Our team's dedicated ML product engineers enable us to move to production fast, often shipping to beta in weeks after a successful offline test. We are very passionate about applying machine learning technology, and have productized everything from classic supervised models, to cutting-edge unsupervised clustering algorithms, to novel applications of transformer neural networks. We test and measure the real customer impact of each model we deploy. What will I be doing? Play an active role in hiring, mentoring and career development of other engineers Raise the bar for technical standards, performance, reliability, and operational excellence Identify areas

SQLRestMachine LearningAI
F
📍 Dublin, Ireland· Full-time
✓ Quality checkedCompany trend -100%

Fin is the AI Customer Agent company on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey – from service, to sales, to ecommerce. Powered by our own AI models, Fin resolves complex customer issues end-to-end across every channel, with minimal set-up and integration. Fin can also be combined with our natively integrated Intercom help desk for one single system that is designed to meet the needs of modern day support teams. Founded in 2011, Fin became one of the fastest growing companies and remains one of the largest private software companies in the world with nearly 30,000 global businesses using our products to transform their customer support. Driven by our core values, we push boundaries, build with speed and intensity, and relentlessly deliver incredible value to our customers. What's the opportunity? Fin's Machine Learning team is responsible for defining new ML features, researching appropriate algorithms and technologies, and rapidly getting first prototypes in our customers’ hands. We are an extremely product focussed team. We work in partnership with Product and Design functions of teams we support. Our team's dedicated ML product engineers enable us to move to production fast, often shipping to beta in weeks after a successful offline test. We are very passionate about applying machine learning technology, and have productized everything from classic supervised models, to cutting-edge unsupervised clustering algorithms, to novel applications of transformer neural networks. We test and measure the real customer impact of each model we deploy. What will I be doing? Identify areas where ML can create value for our customers Identify the right ML framing of product problems Working with teammates and Product and Design stakeholders Conduct exploratory da

SQLRestMachine LearningAI
F
📍 Dublin, Ireland· Full-time
✓ Quality checkedCompany trend -100%

Fin is the AI Customer Agent company on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey – from service, to sales, to ecommerce. Powered by our own AI models, Fin resolves complex customer issues end-to-end across every channel, with minimal set-up and integration. Fin can also be combined with our natively integrated Intercom help desk for one single system that is designed to meet the needs of modern day support teams. Founded in 2011, Fin became one of the fastest growing companies and remains one of the largest private software companies in the world with nearly 30,000 global businesses using our products to transform their customer support. Driven by our core values, we push boundaries, build with speed and intensity, and relentlessly deliver incredible value to our customers. What's the opportunity? Fin's AI Group is responsible for defining new ML products, researching appropriate algorithms and technologies, and rapidly getting first prototypes in our customers’ hands. We are extremely product-focussed. Our team of 50+ ML scientists, ML engineers, designers and researchers works in partnership with other teams across the whole company. We move to production fast, often shipping to beta in weeks after a successful offline test. We are very passionate about applying machine learning technology, and have productized everything from classic supervised models, to cutting-edge unsupervised clustering algorithms, novel applications of transformer neural networks and fine-tuned LLMs. We test and measure the real customer impact of everything we deploy. We plan to double in size, and are on the lookout for an experienced manager to manage a team of highly-performing ML scientists. Engineering managers in Fin are not just people

SQLMachine LearningAIGo
T
📍 Ireland· Full-time· Remote
✓ Quality checkedCompany trend -60%

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . About the job This position is needed to support our customers with account administration and billing inquiries through effective troubleshooting, timely escalations, and cross-functional collaboration, ensuring we deliver world-class support to every Twilio customer. We’re looking for someone who is excited by solving tough problems and enjoys helping others work through complex technical issues. You’re a strong communicator to both technical and non-technical audiences via phone or email and you’re able to empathize with frustrated customers from all backgrounds. You enjoy collaborating with colleagues on your team, help them with the day to day challenges, and are able to contribute ideas on how to improve the team’s work. You should have a firm understanding of the technology stacks common to the Web ecosystem and experience in a telecom environment. You’ve got strong time management skills, and are efficient at getting work done in a dynamic work environment while sti

SQLRestAIGo
T
📍 Ireland· Full-time· Remote
✓ Quality checkedCompany trend -60%

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . Who we are At Twilio, we’re shaping the future of communications

RestScrumAIGo
C
📍 Dublin, Ireland· Full-time
✓ Quality checkedCompany trend -85.7%

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI. We are an AI-native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible. 🚀 You are a solution seller by nature, training, and experience, who is genuinely curious and confident initiating conversations with new prospects. You're a persuasive, driven self-starter with a hunter mentality who thrives on building pipeline from scratch through cold outreach. You have experience running multi-channel outbound motions (phone, email, social), selling SaaS (ideally productivity solutions), and engaging mid-size to large enterprise companies across a variety of industries. A majority of your time will be spent proactively opening doors: cold calling, running personalized email sequences, social selling on LinkedIn, and booking web conferences with prospects who haven't raised their hand yet. We expect high activity, an infectiously positive attitude, and the resilience to keep dialing when results aren't immediate. Our secret sauce is pairing relentless outbound effort with genuine value: helping people see how ClickUp solves real problems and stepping in to accelerate product-led growth. The Role: Run effective outbound prospecting campaigns including cold calls, cold emails, and social touches to generate new pipeline. Build and manage targeted prospect lists, research accounts, and identify key decision-makers. Represent our brand to customers at the start of their research journey. Schedule appointments and demos for new logo acquisition and expansion across the existing customer base. Serve as a product specialist on ClickUp products and services. This is a hybrid position in Dublin, Ireland Qualifications: 1-2 years relevant work experience in cold calling, outbound sales motions

AWSMachine LearningAIGo
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