Design, implement, and optimize high-performance MongoDB and MySQL/Aurora databases on AWS. Manage RDS/Aurora, support deployments via EKS/Kubernetes, handle schema versioning with GitHub and Flyway, monitor with CloudWatch/Datadog, ensure security, DR readiness, and support cross-platform migrations alongside development teams.
About the Role
We are seeking for a Senior Database Developer with strong expertise in MongoDB and working knowledge of MySQL/Aurora on AWS. The ideal candidate will have hands-on experience designing, optimizing, and scaling databases, while collaborating closely with development teams and DBAs to ensure high availability, performance, and reliability.
This is a great opportunity for a mid-level developer who wants to expand their cloud and database expertise while contributing to mission-critical systems.
Key Responsibilities
- Design and implement high-performance MongoDB solutions for demanding workloads.
- Manage and optimize AWS RDS (MySQL/Aurora) instances, ensuring security, scalability, and cost efficiency.
- Support database deployments and orchestration with EKS (Kubernetes).
- Collaborate with developers to design efficient data models, queries, and indexing strategies.
- Manage database schema versioning and scripts with GitHub and Flyway.
- Monitor and tune performance using native tools, AWS CloudWatch, Datadog, and proactively address bottlenecks.
- Ensure data integrity, security, compliance, and disaster recovery readiness.
- Support migrations and interoperability across different RDBMS platforms.
Required Skills & Experience
- 5+ years of experience with MongoDB (architecture, development , optimization, and operations).
- 4+ years of experience with MySQL Development and administration.
- Hands-on AWS experience with RDS and/or Aurora.
- Familiarity with Kubernetes (EKS) and containerized deployments.
- Experience with GitHub-based version control and CI/CD workflows.
- Strong skills in database performance tuning, troubleshooting, and query optimization.
- Understanding of the software development life cycle (SDLC).
- Strong communication and collaboration skills in cross-functional environments.
- Knowledge of database security, disaster recovery, and data migration practices.
Nice to Have
- Exposure to Infrastructure-as-Code tools (Terraform, CloudFormation).
- Experience with CI/CD pipelines for database changes.
- Exposure to monitoring, automation, and container orchestration tools (Kubernetes, Docker).
- Familiarity with additional AWS services (e.g., Lambda, CloudWatch, IAM).
What You Can Expect
- A people-first culture that emphasizes growth, learning, and engineering excellence.
- Opportunities to influence database and platform design decisions.
- A collaborative and supportive environment with strong cross-team partnerships.
- The chance to make a tangible impact on products that directly affect customers worldwide.
Joining us is more than saying “yes” to making the world a healthier place. It’s discovering a career that’s challenging, supportive and inspiring. Where a culture driven by excellence helps you not only meet your goals, but also create new ones. We focus on creating a diverse and inclusive culture, encouraging individual expression in the workplace and thrive on the innovative ideas this generates. If this sounds like the workplace for you, apply now! We commit to respond to every applicant.
ResMed Dublin, Dublin, IRL Office
Termini, 3 Arkle Rd, Sandyford Business Park, Sandyford, Dublin 18, D18 T6T7, Ireland, Dublin, Ireland
Similar Jobs
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Lead the architecture, design, development, and modernization of Mastercard’s cloud-native experimentation and analytics platform. Build scalable services, APIs, data pipelines, and analytical capabilities using AWS, Azure, Databricks, Spark, and PySpark. Drive technical strategy, system design, code reviews, delivery, observability, security, and reliability across distributed teams while mentoring engineers and coordinating cross-functional initiatives.
Top Skills:
SparkAWSAzureCi/CdDatabricksKubernetesMicroservicesPysparkRestful Apis
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Monitor and respond to production alerts, troubleshoot distributed applications, improve reliability and system health, support CI/CD deployments, automate operational processes, analyze ITSM activities, and conduct incident response and blameless postmortems. The role also collaborates globally across development, operations, and product teams while promoting DevOps standards and mentoring junior colleagues.
Top Skills:
ApacheCC++Ci/CdDevOpsGoItsmJavaPerlPythonRest ApisRubySite Reliability EngineeringSoapSQLTomcat
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Leads the design, development, deployment, and evaluation of machine learning solutions, including predictive modeling, forecasting, recommendation systems, fraud detection, and customer analytics. Defines experimentation frameworks, applies foundation-model representations, measures business impact, and partners with cross-functional stakeholders. Mentors data scientists and AI engineers, presents recommendations to leadership, contributes to hiring, and helps shape the organization’s technical direction.
Top Skills:
SparkAWSAzureDatabricksEmbeddingsFoundation ModelsGCPLightgbmPythonPyTorchRepresentation LearningScikit-LearnSQLTensorFlowTransformer ModelsXgboost
What you need to know about the Dublin Tech Scene
From Bono and Oscar Wilde to today's tech leaders, Dublin has always attracted trailblazers, with more than 70,000 people working in the city's expanding digital sector. Continuing its legacy of drawing pioneers, the city is advancing rapidly. Ireland is now ranked as one of the top tech clusters in the region and the number one destination for digital companies, with the highest hiring intention of any region across all sectors.
