Bi Developer - Oracle Analytics

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Bi Developer - Oracle Analytics

Randstad Technologies Recruitment | Greater London, ENG, GB

Posted 25 days ago

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Description

Hiring: BI Architect - Oracle Analytics & Access


Location: London (Canary Wharf)


Duration: 12-Month Contract


Workstream: Finance / Operations Reporting Modernisation


Are you an experienced Solution Architect / Lead Engineer with deep expertise in Oracle Analytics, Python, and legacy Access modernization? We are looking for a hands-on Lead Architect to drive the end-to-end migration and modernization of an enterprise Microsoft Access & Oracle reporting environment into a modern Oracle Analytics Server (OAS), BI Publisher, and Python-driven automation architecture.


Role Overview


In this role, you will lead the assessment, design, build, and deployment of a replacement reporting framework for a legacy MS Access/VBA application. You will work across data layer engineering, OAS/BI Publisher builds, Python ETL/automation, and stakeholder engagement within a financial services / enterprise environment.


Key Responsibilities



  • Discovery & Assessment: Inventory legacy MS Access databases (.mdb/.accdb), linked tables, pass-through queries, macros, and VBA logic to define target-state architecture.

  • Oracle DB Engineering: Develop and tune complex Oracle SQL, PL/SQL, views, materialized views, and stored procedures. Analyze execution plans, AWR/ASH evidence, and TEMP/PGA usage for high-volume workloads.

  • OAS & BI Publisher: Build interactive OAS dashboards, analyses, and BI Publisher data models, layouts, bursting, and automated schedules.

  • Python Automation: Design production-grade Python scripts (pandas, oracledb, SQLAlchemy, openpyxl, etc.) to replace Access macros, automate extraction, and deliver automated report packs.

  • Testing & Delivery: Conduct parallel runs, complete data reconciliation, establish rollback plans, and deliver production runbooks and team support handovers.


Required Experience & Skills



  • 8+ years of Oracle DB development and SQL performance tuning.

  • 5+ years in OAS / OBIEE and BI Publisher development.

  • 5+ years in Python development for data extraction, transformation, and reporting automation.

  • 3+ years migrating legacy Microsoft Access / VBA applications.

  • Strong experience in Financial Services or highly regulated enterprise environments preferred.

  • Experience with DevOps concepts, Git, CI/CD, and enterprise schedulers (e.g., Control-M, Autosys).


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