141 Back End jobs in Ireland

Bar Back

Leinster, Leinster €20000 - €40000 Y The Wright Group

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Job Description

We are currently recruiting a
Bar Back
for our fab bar The Bloody Stream in Howth.

This is a fantastic opportunity for someone who enjoys the fast-paced environment of working in a bustling Bar.

No experience needed & training will be provided.

Follow these links to see what we are all about

The ideal candidate for this role will have:

  • Controlling stock levels
  • Bar cleanliness and support
  • Stock rotation
  • Collecting and washing glasses
  • Bar and storeroom organisation
  • Restocking bars

Our Benefits

  • Opportunity to grow within company
  • Competitive salary
  • Meals on Duty
  • Provision of internal and external training and development
  • Discount in sister properties
  • Employee Recognition Awards

Apply with your CV today

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Bar Back

Dublin, Leinster €20000 - €35000 Y The Molloy Group

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Job Description

Molloy's Bar and Grill, Tallaght are looking for an energetic, reliable, and hardworking Bar Back to support our busy bar team and help keep things running smoothly behind the scenes. If you're eager to learn, thrive in a fast-paced environment, and enjoy being part of a fun, dynamic team - we want to hear from you

This position will involve working evenings, weekends and late nights.

We offer competitive rates of pay and full training.

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Bar Back

€18000 - €25000 Y Molloy Group

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Job Description

Molloy's Bar and Grill, Tallaght are looking for an energetic, reliable, and hardworking
Bar Back
to support our busy bar team and help keep things running smoothly behind the scenes. If you're eager to learn, thrive in a fast-paced environment, and enjoy being part of a fun, dynamic team - we want to hear from you

This position will involve working evenings, weekends and late nights.

We offer competitive rates of pay and full training.

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Bar Back

Galway, Connacht €35000 - €70000 Y Mary Mullens - Public House & Courtyard

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Job Description

Job Title: Bar Back & Glass Collector

Location: Mary Mullens Bar, Galway City

Employment Type: Part-Time / Full-Time (Flexible Shifts)

About Us:

Mary Mullens Bar is a lively, welcoming venue in the heart of Galway City, renowned for great drinks, friendly staff, and a buzzing atmosphere. As we prepare for a busy season, we're looking for energetic and dependable people to join our team as Bar Backs and Glass Collectors.

Key Responsibilities:

  • Collect and clear glasses from tables and bar areas quickly and efficiently
  • Keep all public areas clean and up to standard
  • Assist bartenders with restocking and keeping workstations clean
  • Ensure all bars and customer facing areas are tidy and presentable at all times
  • Help with general cleaning duties and waste disposal
  • Provide excellent customer service and assist guests when needed

What We're Looking For:

  • Friendly, positive attitude and strong work ethic
  • Ability to work in a fast-paced environment and as part of a team
  • Good communication skills
  • Willingness to work evenings, weekends, and late nights
  • Previous experience is a plus, but not required – full training provided

Benefits:

  • Competitive hourly wage
  • Tips and staff discounts
  • Flexible shift patterns
  • Supportive, fun team environment
  • Opportunities for career progression

Job Type: Part-time

Pay: From €13.50 per hour

Work Location: In person

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Back End Developer

€40000 - €60000 Y Kake

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Job Description

Back-end Engineer - Golang

Remote (US West Coast Time Zone Overlap Required)

We are seeking strong Golang Engineers to join our dynamic team. In this role, you will be responsible for designing, developing, and maintaining robust and scalable backend services and applications. You will work extensively with Go (Golang) and other core technologies within our stack, including MongoDB, AWS, and Kubernetes.

Key Responsibilities:

  • Develop high-quality, efficient, and maintainable code in Golang.
  • Design and implement solutions utilizing MongoDB for data storage and retrieval.
  • Deploy, manage, and scale applications using AWS cloud services.
  • Utilize Kubernetes for container orchestration and management.
  • Collaborate with cross-functional teams to define, design, and ship new features.
  • Participate in code reviews and contribute to a high standard of code quality.

Qualifications:

  • Proven experience as a Software Engineer with a strong focus on
    Golang
    development.
  • Solid experience working with
    MongoDB
    .
  • Hands-on experience with
    AWS
    services (e.g., EC2, S3, RDS, EKS, Lambda).
  • Proficiency in using
    Kubernetes
    for deploying and managing containerized applications.
  • Strong understanding of software development principles, data structures, and algorithms.
  • Excellent problem-solving and communication skills.
  • Ability to ensure a minimum of
    6 hours of daily overlap
    with PST or CST working hours.

Why Join Kake?

Kake is a remote-first company with a global community — we believe it's not where your table is, but what you bring to the table that matters. We provide top-tier engineering teams for some of the world's most innovative companies, fostering a culture where great people stay, grow, and thrive. We're proud to be more than just a stop along the way in your career — we're the destination.

The icing on the Kake:

  • Competitive Pay in USD
    – Work globally, get paid globally.
  • Fully Remote
    – Simply put, we trust you.
  • Better Me Fund
    – We invest in your personal growth and passions.
  • Compassion is Badass
    – Join a community that invests in social good.
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Back End Developer

Leinster, Leinster €40000 - €80000 Y Realtime Recruitment

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Job Description

About the Role

The role involves writing and reviewing code, deploying systems that support the business, and engaging in an agile software development process. You will collaborate closely with various stakeholders to deliver high-quality solutions.

Responsibilities

  • Write and review code, and deploy systems that support the business
  • Participate in application design and architecture reviews
  • Engage in an agile, iterative software development process
  • Collaborate closely with business, product and engineering stakeholders
  • Break down complex problems into simple, creative, and effective solutions
  • Build solutions for high availability, observability, and maintainability
  • Provide support for the platform

Qualifications

  • 4-7 years of software engineering experience
  • Bachelor's degree or higher in a technical field (Engineering/Mathematics/Computer Science)

Required Skills

  • Knowledge of an object-oriented programming language (Python or Java) with a proven track record of delivering high-quality data applications
  • Experience designing, delivering, and securing data-rich web applications in relevant web programming frameworks (e.g. React).
  • Familiarity with databases and data pipelines
  • Strong communication skills for interacting with stakeholders
  • Ability to think strategically and act tactically with exceptional attention to detail
  • Demonstrated curiosity, analytical skills, and resourcefulness with a proven record of ownership and the ability to deliver results in a fast-paced and dynamic environment

Preferred Skills

  • Experience with additional programming languages and frameworks
  • Knowledge of cloud services and deployment strategies
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Back End Developer

Leinster, Leinster €60000 - €120000 Y Rapinno Tech Solutions GmbH

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Job Description

Job Title:
Back End Developer

Location:
Dublin Office weekly 3 days onsite work

Type of hiring:
Contract

Eligibility:
Stamp4 (min 8 months Validity) OR Irish OR European

Note:
Experience should be 9+ yrs

A Backend Developer with finance and cards experience will design, develop, and maintain the server-side logic, databases, and APIs for financial applications, focusing on secure and efficient data management. This role requires strong programming skills, particularly in languages like Java or , and experience with financial technologies and card processing systems.

Responsibilities:

System Design and Development:

· Design, develop, and maintain robust and scalable backend systems for financial applications, including core application logic, databases, and APIs.

Data Management:

· Manage and optimize data storage and retrieval using both SQL and NoSQL databases, ensuring data integrity and security.

API Development:

· Build and maintain RESTful APIs and microservices, ensuring they are well-documented, secure, and performant.

Financial Systems Integration:

· Integrate with various financial systems, including payment gateways, card processors, and banking APIs.

Security and Compliance:

· Implement security best practices, ensuring compliance with financial regulations and data protection standards.

Performance Optimization:

· Monitor and optimize the performance of backend systems, ensuring high availability and responsiveness.

Testing and Quality Assurance:

· Write unit and integration tests, participate in code reviews, and ensure code quality.

Collaboration and Communication:

· Work closely with front-end developers, product managers, and other stakeholders to deliver high-quality solutions.

Staying Updated:

· Continuously learn and adapt to new technologies and trends in backend development and the financial industry.

Qualifications:

· Programming Languages: Strong proficiency in Java, Python, or is often required.

· Databases: Experience with both relational (SQL) and NoSQL databases is highly desirable.

· API Development: Proven experience in designing and developing RESTful APIs and microservices.

· Financial Systems: Knowledge of financial technologies, card processing systems, and relevant regulations.

· Cloud Technologies: Familiarity with cloud platforms like AWS, Azure, or Google Cloud is often a plus.

· Security: Strong understanding of security best practices and experience with secure coding.

· Problem Solving: Excellent problem-solving and analytical skills.

· Communication: Strong communication and collaboration skills.

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Back End Developer

Leinster, Leinster €60000 - €120000 Y Brightwater Recruitment

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Senior Back-End Developer – AI/Generative AI Applications

Dublin - Onsite

Overview

We are currently working with a global technology-driven firm exploring the frontiers of artificial intelligence and generative AI. The team's mission is to increase awareness and adoption of the latest AI tools across internal groups, while delivering high-impact applications that drive innovation and efficiency.

They are seeking a Senior Back-End Developer with a strong foundation in building production-grade systems and a genuine curiosity about AI/GenAI. You don't need to be a deep ML researcher, just someone eager to learn, experiment, and apply new technologies in meaningful ways.

This is a hands-on role with direct influence over technical decisions, architecture, and tool adoption, working alongside experienced engineers in a highly collaborative environment.

Key Responsibilities:

  • Design and build scalable back-end systems, services, and data pipelines for AI-driven applications.
  • Integrate LLM APIs (e.g., OpenAI, Azure, Gemini, Claude) and leverage frameworks like LangChain, LlamaIndex, MCP.
  • Apply concepts such as RAG, vector databases, embeddings, and inference optimization to production workflows.
  • Implement robust practices in DevOps, CI/CD, Docker/Kubernetes, automated testing, and debugging.
  • Collaborate with peers on technical strategy, prototyping, and evaluation of GenAI tools.
  • Stay at the forefront of AI adoption, contributing to awareness and best practices across the wider engineering community.

What We're Looking For:

Required Experience

  • 8+ years of experience building production-grade applications with Python or .NET/C#.
  • Strong proficiency with SQL/NoSQL databases and data integration.
  • Solid knowledge of OOP, CI/CD pipelines, containerization, automated testing, and debugging.
  • Familiarity with LLM APIs (OpenAI, Azure, Gemini, Claude) and frameworks (LangChain, LlamaIndex, MCP).
  • Understanding of prompt engineering techniques (prompt chaining, chain-of-thought, multi-shot).
  • Experience with developer productivity tools (GitHub Copilot, Cursor AI, Windsurf).

Preferred (Not Required)

  • Experience with .NET development (C#).
  • Exposure to open-source AI platforms (Hugging Face, Ollama).
  • Basic understanding of AI/ML Ops, model hosting, prompt tuning, and GenAI evaluation.
  • Experience with cloud platforms (Azure, GCP, AWS).
  • Frontend development skills for web or desktop UI/UX.
  • Knowledge of secure authentication (SSO, LDAP) and data handling best practices.
  • Background in finance or willingness to learn the basics.
  • General awareness of traditional AI, ML, NLP, and neural networks.

Qualifications

  • Bachelor's degree in Computer Science, Engineering, or a related field.
  • Training or certification in Generative AI is a plus but not required.
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Back End Developer

€60000 - €120000 Y Ezora

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Job Description

The Role

We're seeking an experienced Backend Software Engineer with strong application development experience and a passion for engineering excellence. This role is perfect for a very experienced developer who wants to drive technical standards, implement best practices, and help shape the architecture of a product that solves real problems for users globally.

As we continue adding customers and scaling our platform, you'll play a crucial role in building robust, maintainable systems that can handle growing data volumes and traffic. You'll champion modern development practices, mentor other team members, and help evolve our technical architecture to support our ambitious growth plans.

What makes this role special: You'll have the opportunity to influence our entire technical direction while working on challenging problems in financial data processing, real-time analytics, and large-scale integrations.

What We're Looking For

Core Engineering Excellence

  • At least 3 years of backend software development experience building production applications
  • Strong understanding of object-oriented programming principles (SOLID principles, design patterns)
  • Experience with modern development practices: automated testing, code reviews, CI/CD pipelines
  • Expertise in database design and optimisation: schema design, performance tuning, query optimization
  • Knowledge of scalable architecture patterns and building systems that grow with business needs
  • Understanding of technical debt and when refactoring is the right investment

Technical Foundation

While our current stack is primarily PHP, we welcome strong backend engineers from any modern language background, including:

  • Java, C#/.NET, Python, Go, or similar - we value strong engineering fundamentals over specific syntax
  • Experience with enterprise frameworks and dependency injection patterns
  • SQL expertise and relational database experience (MySQL, PostgreSQL, SQL Server, etc.)
  • Understanding of RESTful API design and web services integration
  • Cloud platform experience (AWS preferred, but Azure/GCP experience translates well)

Integration & Data Experience

  • Required:
  • Experience with third-party API integrations, including OAuth authentication
  • Comfortable working with various data formats: JSON, XML, CSV
  • Knowledge of data pipeline design and ETL processes
  • Bonus:
  • Experience with Parquet or other modern columnar data formats
  • Experience with columnar databases (ClickHouse, Firebolt, RedShift) or data warehousing

Systems & Infrastructure

  • Required:
  • Linux systems experience, including server setup and configuration
  • Basic security practices and system hardening knowledge
  • Cloud infrastructure experience (we use AWS, but other cloud experience is valuable)
  • Bonus:
  • Experience with Docker, Infrastructure as Code, monitoring and observability
  • Experience with GraphQL

Our Current Tech Stack

  • Backend: PHP, Python
  • Data Layer: Amazon Aurora (MySQL), Firebolt (columnar database), Redis
  • Frontend: React, TanStack Router, Zustand, shadcn/ui
  • Infrastructure: AWS (EC2, ECS, S3, RDS, S3, Elasticache & various other services)
  • Tools: Git, Docker, Redis, Python for data processing

Note: We're open to evolving our stack with the right technical input

What You'll Do

  • Build new functionality and scale existing systems to handle growing customer demand
  • Drive engineering best practices across the team, from testing strategies to code architecture
  • Optimize database performance and design schemas that scale with our data growth
  • Integrate with third-party systems from major brands, handling complex data flows
  • Collaborate closely with our Operations team to understand customer needs
  • Champion code quality through reviews, documentation, and knowledge sharing

Working at Ezora

Remote-First Culture: As a distributed team, we value self-motivation, clear communication, and the ability to deliver high-quality work independently.

Technical Growth: You'll have the opportunity to influence our technology choices, architect new systems, and solve challenging problems at scale.

Business Impact: Your work directly affects how major global brands manage their finances - the software you build makes a real difference.

Growth-Stage Opportunity: Join us at a stage where you can truly shape both the product and the company culture.

What We Offer

  • Competitive salary and equity participation
  • Flexible remote working (Ireland/UK based)
  • Professional development and conference attendance
  • Modern equipment and home office setup support
  • Collaborative culture that values technical excellence
  • Direct impact on product direction and company growth
  • Annual Offsites company sponsored 5 star team event in foreign destination

Application Process

Ready to help us build the future of financial analytics?

  1. Fill out the application form on Hire Locker - link
  2. Expect a follow up email, and potentially a short phone call
  3. Technical test - approx 1 hour head scratcher with real world problems, not leetcode
  4. Follow up interview with the team you'll be joining

Note: We are not looking for any contractors, external development agencies or recruiters.

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Back-end-developer

Mulhuddart, Leinster €60000 - €90000 Y IBM

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Introduction
A career in IBM Software means you'll be part of a team that transforms our customer's challenges in solutions.

Seeking new possibilities and always staying curious, we are a team dedicated to creating the world's leading AI-powered, cloud-native software solutions for our customers. Our renowned legacy creates endless global opportunities for our IBMers, so the door is always open for those who want to grow their career.

We are seeking a skilled back-end developer to join our IBM Software team. As part of our team, you will be responsible for developing and maintaining high-quality software products, working with a variety of technologies and programming languages. IBM's product and technology landscape includes Research, Software, and Infrastructure. Entering this domain positions you at the heart of IBM, where growth and innovation thrive.

Your Role And Responsibilities

  • The Camel Quarkus team is an integral part of IBM's runtime portfolio, focused on building and evolving Apache Camel on the Quarkus runtime, a lightweight, cloud-native integration solution.

  • As a Senior Backend Developer on this team; you will design, develop, and optimize features that enhance Camel's performance, scalability, and native execution on modern cloud platforms.

  • As a member of the Camel Quarkus team, you will contribute to enhancing and maintaining 100+ Camel extensions, ensuring they are optimized for Quarkus and ready for production use in a variety of enterprise scenarios.
  • You will contribute to upstream development, collaborate with the Apache Camel and Quarkus communities, and participate in architectural discussions to ensure alignment with product and technical goals.
  • You'll also work closely with teams across QE, documentation, product management, and support to deliver high-quality, enterprise-ready features. This role offers opportunities to engage with the broader open-source ecosystem and contribute to shaping the future of cloud-native integration.

Required Technical And Professional Expertise

  • Advanced Java proficiency:

Extensive hands-on experience with Java development, with strong expertise in modern Java (Java 11+). Familiarity with Java 17 and its advanced features is a strong plus.

  • Enterprise Integration:

Strong understanding of messaging systems, transactional workflows, and Enterprise Integration Patterns.

Experience with Apache Camel or similar frameworks.

  • Cloud-Native Fundamentals:

Experience with containerized development (Docker, Kubernetes).

Understanding of cloud-native runtimes; exposure to native compilation is a plus.

  • Build & CI/CD Tooling:

Proficiency in Maven or Gradle.

Familiarity with modern CI/CD pipelines.

  • Testing & Debugging:

Solid foundation in test-driven development, integration testing, and debugging distributed applications.

Preferred Technical And Professional Experience

  • Exposure to Quarkus or similar modern microservice frameworks.
  • Contributions to open source projects.
  • Experience delivering technical presentations, writing blogs, or engaging in developer communities.
  • Familiarity with Red Hat Middleware products.
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