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Data Systems Specialist

2 weeks ago

Dublin, Dublin City, Ireland beBeeEngineer Full time €95,000 - €125,000
Job Opportunity

We are seeking a skilled engineer to design and develop modern data systems.

Key Responsibilities
  • Design and implement performant data pipelines using Polars, FastAPI, and Python.
  • Collaborate closely with front end engineers, product managers, and machine learning engineers to deliver seamless features.
  • Implement API-first architecture practices, with careful attention to schema design, versioning, and documentation.
  • Work across the AWS stack, deploying scalable services that power mission-critical experiences for users.
  • Contribute to system design decisions, database modelling, and service orchestration to ensure resilient back end systems.
  • Monitor and tune application performance, from query speeds to service latency and throughput.
Required Skills
  • Few years of professional software engineering experience, ideally in B2B or data product environments.
  • Deep experience with Python, including libraries like Polars, PySpark, and frameworks such as FastAPI or Fastify.
  • Experience working on data-heavy platforms or with AI/ML outputs exposed via APIs.
  • Proficient in designing, building, and scaling RESTful APIs (GraphQL experience is a bonus).
  • Strong knowledge of cloud infrastructure, especially the AWS stack (Lambda, ECS, S3, CloudWatch, etc.).
  • Solid understanding of data performance trade-offs—e.g. query optimization, memory use, parallelism.
  • Familiarity with modern CI/CD pipelines, containerisation (Docker), and IaC tools like Terraform.
  • Strong collaboration skills—able to partner with front end teams and product stakeholders to ship well-integrated features.
Preferred Qualifications
  • Familiarity with React and how front end teams consume and interact with back end services.
  • Experience with the Databricks platform and ecosystem.
  • Working knowledge of SQL/NoSQL databases and data modelling in analytics contexts.