Bi Developer - Oracle Analytics

Randstad Technologies Recruitment; City Of London; On-site; GBP 85,000 - 120,000; Full time

Job summary

Randstad Technologies Recruitment seeks an BI Architect to lead the replacement reporting framework for a legacy MS Access/VBA application. You will work across data layer engineering, OAS/BI Publisher builds, and Python ETL/automation in a financial services environment.

The role oversees Oracle SQL tuning, OBIEE/OAS development, Python scripting for automation, and migration of Access/VBA components, with CI/CD and enterprise schedulers in scope.

Qualifications

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

Responsibilities

• Discovery & Assessment: Inventory legacy MS Access databases, 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.
• OAS & BI Publisher: Build interactive dashboards, analyses, and BI Publisher data models, layouts, bursting, and automated schedules.
• Python Automation: Design Python scripts 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.

Skills

Oracle DB development

SQL performance tuning

OAS / OBIEE

BI Publisher development

Python development

Data extraction/automation

Legacy Access/VBA migration

DevOps concepts

Git

CI/CD

Control-M

Autosys

Tools

Git

CI/CD

Control-M

Autosys

Job description

Hiring: BI Architect - Oracle Analytics & Access

Location: London (Canary Wharf)

Duration: 12-Month Contract

Workstream: Finance / Operations Reporting Modernisation

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).