164 API jobs in Leinster + 30 km

Senior Software Engineer

Reperio Human Capital Ltd
Dublin, County Dublin
€75,000 - €85,000 per annum
Senior Software Developer - C++ / C# - Dublin (Hybrid) C++, C#, .NET | Win32 | Azure | SQL €75,000-€85,000 + Bonus & Benefits - Hybrid - 2-3 Days Onsite - A leading software company based in Dublin is hiring a Senior Software Developer to join their growing engineering team. The role focuses on developing robust desktop applications and high-performance back-end services using a combination of C++, C#, and .NET technologies, with additional exposure to cloud integrations and Windows-based systems. You'll be working across both legacy and modern platforms, contributing to new feature development, performance optimisation, and architectural improvements. * Design, develop, and maintain critical systems using C++ and C# * Lead the modernisation of Win32 SDK applications into .NET Core environments * Build and consume APIs (REST/SOAP) for system integrations
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Oliver James have partnered with a leading Financial Services client who are going through a growth phase at present and require a Senior .Net Developer on an initial 6 month day rate contract. You will play a key role in designing, building, and maintaining high-quality .NET applications, while contributing to architectural decisions and mentoring junior team members. * Design, develop, and maintain scalable .NET applications using C#, .NET Core/.NET 6+ and related technologies. * Work closely with cross-functional teams to define and deliver new features and improvements. * Conduct code reviews and uphold coding standards and best practices. * Lead or support the migration of legacy systems to modern .NET platforms. * Identify and resolve performance issues, bugs, and technical challenges. * Provide guidance and mentorship to junior developers.
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Senior Software Developer C#

Fruition Group
Dublin, County Dublin
€70.00 - €72.00 per hour
Our Dublin based client are looking for an experienced and Senior Software Developer (C#) to join their team on a contract basis. Well known brand name and great contract opportunity - Good daily rate on offer with the option to work on a hybrid basis - Job Responsibilities * Building and maintaining Applications, using technologies such as Typescript, React * Using C# to build APIs both for application use, and more general use across the application estate * Contributing to design, build, test & maintenance activities * Motivated by delivering solutions and issue resolutions to our business * Develop and maintain CI/CD pipelines as code * Promote and adhere to development standards through automation tooling and manual controls incl. JIRA, agile standards, code reviews and release automation * Work with Product Owners, Scrum Masters and Business Analysts on the visi
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Senior Backend Software Engineer (PHP)

Reperio Human Capital Ltd
Dublin, County Dublin
€75,000 - €80,000 per annum
Location: Dublin (Hybrid) Salary: + Bonus + Benefits - Tech Stack: PHP 7/8, Symfony, MySQL, REST APIs, CI/CD - An established European product company is hiring a Senior Backend Engineer to join their engineering team in Dublin. This team owns a core domain responsible for powering the search and product catalog systems behind a high-traffic consumer platform used across travel, food, wellness, and retail experiences. This is a high-impact role where you'll work closely with engineering, product, and architecture teams to build and optimise backend services, search performance, and catalog architecture that directly impact millions of users across Europe. * Develop and maintain robust, scalable services in PHP (7/8) using Symfony * Contribute to the design and evolution of backend architecture across search and catalog systems
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Java Engineer

Oliver James
Dublin, County Dublin
€ Not Disclosed
Oliver James are hiring for our leading enterprise client: Java Engineer (6-Month Daily Rate Contract | 2 Days On site/Week | Dublin) * Strong experience with Java * Proficiency in Spring and Spring Boot * Hands-on experience with AWS * Experience with Micro services architecture * Familiarity with CI/CD tools * Exposure to Docker/Kubernetes * Strong understanding of RESTful APIs * Experience with Terraform or other Infrastructure as Code (IaC) tools * Experience working in an Agile/Scrum environment Contract: 6 months (daily rate) Location: Dublin - 2 days onsite/week Rate: Competitive, DOE Apply directly for more information. Work From Home
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Java Engineer

Oliver James
Dublin, County Dublin
€ Not Disclosed
Oliver James are hiring for our leading enterprise client: Java Engineer (6-Month Daily Rate Contract | 2 Days On site/Week | Dublin) * Strong experience with Java * Proficiency in Spring and Spring Boot * Hands-on experience with AWS * Experience with Micro services architecture * Familiarity with CI/CD tools * Exposure to Docker/Kubernetes * Strong understanding of RESTful APIs * Experience with Terraform or other Infrastructure as Code (IaC) tools * Experience working in an Agile/Scrum environment Contract: 6 months (daily rate) Location: Dublin - 2 days onsite/week Rate: Competitive, DOE Apply directly for more information. Work From Home
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PHP Tech Lead

Reperio Human Capital Ltd
Dublin, County Dublin
€85,000 - €100,000 per annum
Location: Dublin / Remote (Ireland-based) Salary: €85,000 - €100,000 DOE - Job Type: Full-Time | Permanent - Tech Stack: PHP | Laravel | Symfony | AWS | MySQL | Docker | CI/CD - Are you a seasoned PHP Developer ready to take the next step into technical leadership? Want to be the go-to person on major product decisions while still staying hands-on with code? This is your shot. We're partnering with a rapidly growing Irish SaaS company that's transforming how businesses handle their customer journeys. With a major product overhaul in the pipeline and multiple greenfield projects kicking off, they're seeking a PHP Lead who can set standards, guide the team, and deliver at scale. * Leading a team of PHP developers across feature development and system architecture * Designing and implementing scalable, secure backend services using PHP (Laravel/Symfony)
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PHP Tech Lead

Reperio Human Capital Ltd
Dublin, County Dublin
€96,000 - €108,000 per annum
Own the technical direction of a core backend domain, aligned to business priorities * Lead solution design and architecture across distributed backend systems * Collaborate with cross-functional teams and offshore engineering partners * Champion code quality, scalability, and long-term maintainability * Guide and mentor engineers through code reviews, solutioning, and best practices * Represent your domain in cross-team technical planning and discussions * Drive continuous improvement in delivery workflows and technical standards * 6+ years of backend development experience with PHP 7/8 * 2+ years' exposure in a technical lead or domain ownership capacity * Strong experience with Symfony or similar modern PHP frameworks * Deep understanding of REST/SOAP APIs, scalable architecture, and clean coding practices
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Senior .NET Developer

Reperio Human Capital Ltd
Dublin, County Dublin
€70,000 - €80,000 per annum
Job Title: Senior .NET Developer (C# | Azure | Hybrid) Location: Dublin (2 days on-site per week) Salary: €70K-€80K DOE - Type: Full-time, Permanent - Visa: Stamp 1G / Stamp 4 accepted?? * Design, develop, and maintain scalable and secure backend services using .NET Core. * Contribute to architecture discussions and help shape the direction of new features. * Build and consume REST APIs that integrate with various frontend and third-party systems. * Write clean, maintainable, and testable code with strong unit and integration test coverage. * Deploy and monitor applications in Azure using CI/CD pipelines and infrastructure-as-code. * Collaborate with frontend developers, testers, and product managers in an Agile environment. * Participate in code reviews, knowledge-sharing sessions, and technical planning meetings.
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Technical Lead - PHP Development

MCS Group Consultancy
Drogheda, County Louth
€65,000 - €75,000 per annum
MCS Group is delighted to announce an exclusive opportunity for a driven PHP specialist to join a growing Irish tech scale-up as a technical lead to mentor, coach and lead a team to further growth and success. (Hybrid 1 day per week in office - County Louth) * Lead and mentor a team of PHP developers, ensuring best coding practices and quality standards. * Design and implement scalable, secure, and high-performance PHP applications. * Collaborate with stakeholders to define project requirements and technical solutions. * Review and optimise existing codebases for performance and maintainability. * Stay updated with emerging technologies and frameworks to improve development efficiency. * Manage deployments and ensure smooth CI/CD processes. * Troubleshoot and resolve technical issues effectively. * Extensive experience with PHP and frameworks such as Laravel or Symfon
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Salesforce Developer

Reperio Human Capital Ltd
Dublin, County Dublin
€55,000 - €75,000 per annum
My client is looking for a seasoned Senior Salesforce Developer with significant expertise in coding, Salesforce Lightning development, APEX components, and API development. * Exposure to Salesforce Web Service API's, SOAP & REST API's, Bulk/Metadata API's. Salesforce, Lightning, Apex, REST API, Agile
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You will be responsible for building robust API interfaces and system integrations using Azure Integration Services, with a focus on ODATA and modern integration patterns. * API Management (APIM) * Build and manage API interfaces for integrations with Dynamics 365 and other enterprise systems. Azure Dynamics365 logic apps api data factory
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Azure Engineer

Fruition Group
Dublin, County Dublin
€ Not Disclosed
You will be responsible for building robust API interfaces and system integrations using Azure Integration Services, with a focus on ODATA and modern integration patterns. o API Management (APIM) * Build and manage API interfaces for integrations with Dynamics 365 and other enterprise systems.
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Cpl in partnership with the SK pharmteco Small Molecule, Europe, facility located in Swords, are looking for two Process Engineers for a 12 month contract for a new API facility which is under construction on the Swords campus. * Familiarity and experience of working within the Chemical / Pharmaceutical industry and knowledge of API/small molecule manufacture. Chemical Engineering API Small molecule Emerson DeltaV Commissioning Validation.
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Technical Architect

Pontoon Solutions
Dublin, County Dublin
€ Not Disclosed
The global Digital Channels team deliver high profile Financial Technology initiatives such as the Global Markets and Banking API initiative, the ever changing world of payments and the power to * Experience with containers, messaging, MongoDB, API Development
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Utilize modern technologies and frameworks to build solutions that support API-driven design, microservices architecture, and cloud-based deployments. * Strong knowledge of modern architectural patterns, including microservices, API-driven design, and cloud-native architectures.
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Frequently Asked Questions

How many API jobs are there in Leinster?
There are 164 API jobs in Leinster available on IrishJobs right now.

Where in Leinster are these jobs?

What other similar jobs are there to API jobs in Leinster?
As well as API jobs in Leinster, you can find Data Analytics, Business Intelligence, Analytics, amongst many others.

How many temporary and part-time API jobs are available in Leinster?
There are 4 temporary API jobs and 3 part-time API jobs available in Leinster at the moment.