Software Engineer Jobs in Ireland

Network Software and Services for AI (nssAI) team at SpaceXAI builds cutting‑edge software, services, and frameworks to empower Network Development Engineers, focusing on metric collection, configuration, zero‑touch provisioning, monitoring, and auto‑remediation. The role designs and implements scalable, reliable tools for large GPU supercomputing network fabrics, enhances IaC pipelines, and ensures secure service delivery.

Triage Intelligence and Debug Engineering team at Apple builds automation and intelligent tooling to improve OS reliability across iPhone, Mac, and Apple Silicon. The Software Engineer will investigate crashes, develop automation pipelines, and apply ML/AI techniques to enhance triage logic.

Elasticsearch - Storage Engine team at Elastic builds core storage and query technologies for observability workloads. The Senior Software Engineer designs, implements, and optimizes Elasticsearch's storage engine, leads performance initiatives, and mentors engineers across a fully remote, globally distributed team.

MongoDB seeks a Senior Software Engineer to join its Forward Deployed Engineering team, focusing on application modernization and generative AI tooling. The role blends technical expertise with customer engagement, driving product feedback and roadmap influence.

REDAPL Graph Engine team at Datadog builds the core platform that tracks customers’ infrastructure resources and relationships, powering Cloud Security Posture Management, Cloud Cost Management, and Service Catalog. As a Senior Engineer you design and implement a high‑performance query engine for relationship traversals, lead architectural decisions, and collaborate with product teams to scale the platform across multiple regions.

Platform Engineering at Klaviyo builds infrastructure primitives, platforms, tooling, and guidance for engineering teams. The Senior Software Engineer designs and develops core platform services to improve availability, scalability, latency, and cost efficiency, mentoring engineers and driving cost‑optimization.

Amazon Web Services is hiring a Software Development Engineer to join the Network Fabric Engineering team, building software systems that power the world's largest network. You will design and develop distributed system solutions, own the full development lifecycle, and collaborate with a team of 100+ engineers to advance intelligent, automated network infrastructure.

Platform Engineering at Klaviyo builds infrastructure primitives, platforms, tooling, and guidance for engineering teams. The Software Engineer II designs and develops core platform services, improving availability, scalability, latency, and cost efficiency using Python, Go, AWS, and Kubernetes.

HubSpot's Developer Acceleration group empowers over 2,000 engineers to build, test, and deploy code at scale. The release engineering team owns the full delivery pipeline—from pull request to production—handling hundreds of thousands of builds per day.

Employee Engagement & Engineering team within Apple IS&T builds high‑scale, user‑centred tools for Apple employees. As a Swift Software Engineer you will design and deliver native macOS, iOS, and iPadOS applications in Swift/SwiftUI, integrating AI/ML features and platform interoperability.

Software Localization & Release Engineering team at Apple builds and maintains automation testing frameworks to ensure high-quality software for international users. The Software Automation Engineer creates and runs automated test suites, leverages GenAI and large language models to enhance testing capabilities, and designs comprehensive test strategies across Apple platforms.

Privacy Engineering team builds secure, reliable systems that help OpenAI meet legal obligations while protecting user data. The Software Engineer will design, build, and operate backend systems and data pipelines for lawful data access request workflows, partnering with Legal and Operations.

HubSpot's Developer Acceleration group empowers over 2,000 engineers to build, test, and deploy code at scale, with the release engineering team owning the full delivery pipeline from pull request to production. As a Principal Software Engineer, you will define the technical future of release engineering at the intersection of large-scale distributed systems and agentic AI, owning the build, test, and deploy platform while staying hands-on.

Anthropic seeks a Senior Software Engineer to enhance AI reliability by designing SLOs, monitoring, high‑availability infrastructure, automated failover, incident response, and cost optimization for large‑scale language model serving.

Elasticsearch - Storage Engine team builds core storage and query technologies for observability workloads, focusing on storage efficiency, ES|QL processing, and object‑storage data layouts. The Senior Software Engineer designs, implements, and optimizes Elasticsearch's storage engine, leads cross‑team initiatives, mentors engineers, and contributes modern Java code.

ACI Worldwide, a global leader in mission-critical real-time payments software, is hiring a Sr Software Engineer in Limerick, Co. Limerick, Ireland. The role provides technical leadership for the planning, design, and development of software systems and applications for enhancements and new products.

PlayStation SDK Developer Host Tools team builds brand‑new tools and platforms for thousands of developers worldwide. The Software Engineering Manager leads high‑impact backend and web/native frontend teams, guiding architecture, code reviews, and system design while fostering a collaborative, developer‑centric culture.

Mastercard seeks a Lead Software Engineer in Dublin, Ireland, to drive technical leadership and deliver scalable, secure software solutions. The role involves designing enterprise-scale architectures, mentoring engineering teams, and collaborating with cross-functional stakeholders to ensure high-quality product delivery.

Senior Software Engineer needed to join a multi-disciplined R&D team focused on innovative, secure, and scalable Java/JEE applications. The role requires strong front‑end skills, microservice architecture experience, and a passion for emerging technologies.

HubSpot's Adaptive Monetization group owns the systems that determine how customers buy, contract, and pay for HubSpot at scale, with direct financial consequence. As a Principal Software Engineer, you will architect and build the evolution of HubSpot's monetization model, spending roughly 70-80% of your time writing code, leading designs, and owning technical direction on complex, live systems.