Enterprise Integration Engineering

Oracle PL/SQL · Java · REST APIs · JSON/XML · ETL · SQL

Designing and supporting enterprise integrations, backend services, and data pipelines that connect operational systems, databases, reporting platforms, and business workflows.

What I Work On

My professional work focuses on integrating complex enterprise systems and making data move reliably between applications.

At CGI, I develop and support Oracle-based backend solutions, REST and messaging integrations, ETL processes, scheduled jobs, reporting solutions, and high-volume data workflows. I also work across testing, troubleshooting, implementation, and production support.

Typical Integration Challenges

System-to-System Integration

Enterprise applications often need to exchange data across systems that were designed independently.

My work includes building integrations using:

– REST APIs
– JSON and XML messaging
– middleware
– database interfaces
– ETL processes
– scheduled backend jobs
– SFTP and file-based exchanges

The goal is not simply moving data, but ensuring that mappings, validation, error handling, and downstream behavior are reliable.

Oracle Backend Development

A significant part of my work involves Oracle and PL/SQL.

I design and maintain:

– packages
– procedures
– functions
– triggers
– views
– complex SQL and PL/SQL
– scheduled processes
– database-driven integration logic

These solutions support enterprise applications where data integrity and predictable transaction processing are critical.

Data Pipelines & Processing

I build backend processes for moving and transforming data between systems, including high-volume and scheduled workflows.

That includes thinking about:

– data validation
– transformations and mappings
– transaction boundaries
– retry behavior
– exception handling
– monitoring
– reconciliation
– performance

Performance & Reliability

Enterprise integration work frequently requires troubleshooting beyond a single application.

I work across database, application, integration, and data layers to diagnose failures and improve reliability.

My experience also includes SQL and PL/SQL performance tuning, including work that reduced complex query execution times by approximately 30%.

From Design Through Production

My role extends beyond writing code.

I produce functional and technical designs covering architecture, data mappings, validation rules, error handling, and deployment requirements.

I also coordinate with:

– business stakeholders
– QA teams
– application developers
– database administrators
– technical leads

That allows me to follow an integration through the full lifecycle from requirement and design through implementation and production troubleshooting.

Technologies

Database
– Oracle · PL/SQL · SQL · Packages · Procedures · Triggers · Views

Integration
– REST APIs · JSON · XML · ETL · Middleware · SFTP

Development
– Java · Python · C# · Shell Scripting · PowerShell

Reporting & Tools
– Oracle Forms · Oracle Reports · BIRT · Git · Jira · Docker

What This Work Demonstrates

Enterprise integration requires understanding more than one technology. It requires understanding how applications, databases, interfaces, business rules, and operational processes behave together.

This work demonstrates:

– enterprise system integration
– Oracle database development
– API and messaging architecture
– backend service development
– data transformation and ETL
– performance tuning
– production troubleshooting
– technical documentation
– cross-functional collaboration
– end-to-end software delivery

Client Confidentiality

Specific client names, production data, internal architecture, and proprietary implementation details are intentionally omitted.