Data Analyst

Data Analyst

Haystack

April 17, 2026June 1, 2026Nigeria
Job Description
Job Overview:
We're working with a leading digital transformation consultancy delivering mission-critical public sector infrastructure on this exciting opportunity.

Duties and Responsibilities:
Lead the forensic analysis of existing systems built on Java, Node JS, and React to document end-to-end data lineage. Reverse engineer complex data models and system dependencies to support critical decommissioning and migration decisions. Use Python, PySpark, and AWS Glue to validate data pipelines and confirm how information transforms across the wider program. Ensure data integrity and accuracy by implementing rigorous testing frameworks using PyTest and Great Expectations. Collaborate with cross-functional teams to clarify ownership, integration points, and RDS storage structures.

Required Qualifications:
An active SC Clearance is mandatory due to the secure nature of the environment. Strong technical background with the ability to read and understand Java, Node JS, and React codebases. Advanced proficiency in Python, PySpark, and working with JSON/RDS datasets. Proven experience in Cloud environments (AWS preferred, Databricks is a significant plus). Expertise in Data Quality management and automated testing (PyTest, Great Expectations).

Additional Notes:
Competitive day rate of £500 - £510 (Inside IR35). 100% Remote working flexibility for a better work-life balance. Long-term stability with a 1-year contract duration. The chance to work on large-scale, impactful datasets within a high-profile secure program.

Apply now
Similar Jobs