Data Analyst

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

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we're building a world-class platform to amplify our teams' most powerful ideas.

Engineering Team Role

As part of our engineering team, you'll shape the platforms and tools that drive high-impact research - designing systems that scale, accelerate discovery and support innovation across the firm.

Role Overview: Reference Data Data Analyst

The role Reference Data underpins G-Research's trading and research workflows by curating core market datasets. As a Data Analyst, you will own day-to-day data integrity and investigate anomalies end to end. You will partner with engineers and stakeholders to improve pipelines, controls and downstream usability. This is a highly stakeholder-facing role requiring proactive communication, accountability and strong teamwork.

Key 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

Who Are We Looking For?

The ideal candidate will have the following skills and experience:

• 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

Why Join Us?

• Highly competitive compensation plus annual discretionary bonus
• Lunch provided (via Just Eat for Business) and dedicated barista bar
• 35 days' annual leave
• 9% company pension contributions
• Informal dress code and excellent work/life balance
• Comprehensive healthcare and life assurance
• Cycle-to-work scheme
• Monthly company events

Our Commitment to Inclusion

G-Research is committed to cultivating and preserving an inclusive work environment. We are an ideas-driven business and we place great value on diversity of experience and opinions. We want to ensure that applicants receive a recruitment experience that enables them to perform at their best.

If you have a disability or special need that requires accommodation please let us know in the relevant section.