BI Architect - Oracle Analytics & Access

Randstad Technologies Recruitment; City Of London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Randstad Technologies Recruitment is hiring a BI Architect to design and deploy a modern reporting framework in a financial services environment. The role focuses on Oracle SQL tuning, OAS/BI Publisher development, and Python-based automation to replace legacy Access/VBA solutions.

You will work across data layer engineering, BI dashboards, and automated report packs, with emphasis on high-volume, regulated workloads. London-based, 12-month contract.

Qualifications

• 8+ years Oracle DB development and SQL performance tuning.
• 5+ years OAS/BI Publisher development.
• 5+ years Python for data extraction and reporting automation.
• 3+ years migrating legacy Access/VBA apps.
• Financial services or regulated environments preferred.

Responsibilities

• Lead assessment and design of replacement reporting framework.
• Develop and tune Oracle SQL, PL/SQL, and materialized views.
• Build interactive OAS dashboards and BI Publisher data models.
• Create production Python scripts for automation and reporting.
• Perform testing, data reconciliation, and rollout handovers.

Skills

Oracle SQL tuning

OBIEE / OAS development

Python data automation

VBA/Access legacy migration

SQL performance analysis

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).