Top Backend Jobs in Dublin

Design, build, and maintain scalable backend services that deliver ML-enriched product attributes and badges. Develop high-throughput, low-latency APIs and manage a dedicated database, CI/CD pipelines, observability, and tests. Collaborate with ML engineers and cross-functional teams to ensure reliability, performance, and availability for downstream systems and customer dashboards.

Design, deliver, and maintain high‑load real‑time recommendation web services. Implement IaC, CI/CD, observability, and stability testing. Collaborate with cross‑functional teams, integrate NoSQL/SQL and external services, and migrate features into distributed services.

Design, build, deploy, and maintain high-load, real-time ML-based ranking services and a Ranking Platform. Improve performance, feature delivery (feature store), CI/CD, and collaborate with DS, MLEs, and stakeholders.

Design, develop, and optimize high-performance Java backend systems. Contribute to architecture, implement core modules, troubleshoot production issues, perform code reviews, and improve scalability, availability, and reliability of distributed financial or blockchain systems.

Design, develop, and maintain high-performance, secure Java backend services and APIs. Ensure reliability, scalability, and cost-efficiency across microservices, databases, messaging systems, and capacity planning. Troubleshoot, profile, benchmark, and optimize systems (including ML applications) and collaborate with Kazakhstan stakeholders.

As a Backend Engineer, you will design and implement scalable backend services, develop API interfaces, enhance security, and collaborate across teams to build integrated solutions.

Build, own, and operate low-latency, high-throughput backend services for feature flag evaluation and SDKs. Improve reliability, reduce p99 latency, migrate components to Rust, design real-time cohorts and write-heavy architectures, and ship end-to-end services while maintaining uptime and developer experience.

Design and build backend services for corporate card issuance, integrate with banking systems, and improve system performance while collaborating with cross-functional teams.

As a Backend Software Engineer, you'll design scalable backend systems, optimize database performance, and collaborate with front-end and DevOps teams.

Design and build backend services for a multi-tenant cashier system, integrating with blockchain networks and ensuring scalability and security in a financial context.

Build and maintain Extensions backend for enterprise LTM products: design distributed, reproducible, observable workflows; optimize latency and throughput; collaborate with data scientists; drive architectural decisions; write high-quality, tested Python code; and document best practices for production-scale deployments.

The Backend Engineer will implement new SDK and Indexer features, automate testing, support integration, and oversee production releases.

The Staff Backend Engineer will own the Economic Core of Voyagu's Radar platform, focusing on financial systems architecture and ensuring revenue correctness and financial logic implementation across the system.

Lead design, develop, and maintain Piktochart's backend systems for scalability, performance, and security. Collaborate with product, design, and frontend teams, optimize databases and queries, conduct code reviews, evaluate new technologies, and mentor developers while integrating AI agents and improving CI/CD and cloud infrastructure.

Own end-to-end features across a React client and Python monolithic backend for an enterprise AI video SaaS. Lead multi-month projects, collaborate with product, measure impact via data pipelines, manage safe releases, and help shape long-term engineering direction.

Build and operate distributed backend services and genomic reasoning engines that combine whole genome bioinformatics with AI. Design scalable data models, retrieval and vector search systems, and deterministic guardrails to ensure scientifically accurate, explainable genomic AI for production use.

Build and maintain high-performance, fault-tolerant distributed backend services and data pipelines for large genomic and health datasets. Design storage, indexing, and async event workflows; optimize latency, throughput, and reliability. Partner with bioinformatics and product teams to validate scientific accuracy and guard AI-driven responses.

The role involves owning product feature development, participating in system design, and maintaining software performance in an agile setting.

As a Senior Backend Product Engineer, you will develop backend systems, enhance user experiences, collaborate with cross-functional teams, and ensure AI integration in product development.

The Software Engineer will develop backend systems using Rust, manage multimodal data, and improve data infrastructure with a focus on performance and design ownership.

Build and maintain backend services, APIs and workflows for an AI neobank. Support fintech products (payments, wallet, savings, investing, insurance), integrate partners (banks, payment gateways, insurers), design reliable systems for accounts, transactions, reconciliation and notifications, and improve system reliability, observability, security and performance for regulated financial products. Collaborate with product, mobile and operations teams to ship customer-facing journeys.

Build and maintain backend services and APIs for onboarding, accounts, payments, cards, transfers, rewards, FX, KYC and risk flows. Design reliable, secure, observable systems for real customer transactions, integrate with partners and AI services, ensure data integrity and incident handling, and collaborate with product and frontend teams to launch and improve financial products at scale.

The Backend Engineer will develop AI Agents, design scalable systems, integrate ML services, optimize performance, and mentor junior engineers.

As a Backend Engineer, you will design scalable APIs, create Engineering Requirement Documents, and build test suites for product analytics and performance.

The role involves leading the mk8s Core Team, managing technical projects, coaching engineers, and participating in hands-on coding and incident response.