Data Analyst, Reference Data & Quality

Aplaro Ltd; Greater London; On-site; GBP 65,000 - 95,000; Full time

Benefits offered by this job

Lunch provided

35 days annual leave

9% pension contributions

Healthcare and life assurance

Cycle-to-work scheme

Monthly company events

Job summary

G-Research, headquartered in London, is seeking a Reference Data Data Analyst to own daily data quality across reference data products—covering instruments, corporate actions, calendars, pricing and identifiers. You will design data quality checks, dashboards, and alerts while partnering with engineers to improve pipelines and downstream usability.

The role requires strong SQL and Python skills, experience with data analysis using pandas or polars, and a proactive, collaborative approach to

Qualifications

• Strong SQL skills.
• Strong Python skills for dataframe analytics using pandas or polars.
• Confident use of AI coding assistants with sound judgment and validation.
• Financial markets domain knowledge.
• A collaborative approach to working with stakeholders.
• An automation-first mindset to reduce RTB and eliminate recurring manual work.
• Nice to have: Familiarity with Git, notebooks and reproducible analytics practices.
• Experience working with engineers in modern deployment environments such as containers or Kubernetes.

Responsibilities

• Owning daily data quality across reference data products including instruments, corporate actions, calendars, pricing and identifiers.
• Designing and maintaining data quality checks, dashboards and alerting.
• Leading root cause analysis on incidents including trace lineage, identifying failure modes and driving remediation with engineering.
• Communicating proactively with stakeholders, setting expectations and explaining impact, severity and timelines.
• Driving issues to closure through clear ownership, tracking actions, validating fixes and preventing regressions.
• Contributing as a strong team player by documenting learnings, sharing context and improving team standards.

Skills

SQL

Python

AI coding assistants

Financial markets knowledge

Collaboration

Automation mindset

Git

Notebooks

Containers/Kubernetes

Tools

Git

Notebooks

Kubernetes

Job description

G-Research, headquartered in London, is seeking a Reference Data Data Analyst to own daily data quality across reference data products—covering instruments, corporate actions, calendars, pricing and identifiers. You will design data quality checks, dashboards, and alerts while partnering with engineers to improve pipelines and downstream usability.

The role requires strong SQL and Python skills, experience with data analysis using pandas or polars, and a proactive, collaborative approach to