Job Description: Solution Architect OLTP Data Modeling (Telecom/Wireless)

Job Title: Solution Architect OLTP Data Modeling
Location: St. Louis, MO

Work Arrangement: Onsite (4 days/week, No Remote Option)
Experience Required: 10+ Years
Primary Skills: Erwin Data Modeler, Oracle, PL/SQL, Python, OLTP Data Modeling, Telecom/Wireless Domain

Looking for: A hands-on Solution Architect who can gather business requirements, design enterprise-grade OLTP data models, implement Oracle database solutions, and optimize transactional systems within a Telecom/Wireless environment.

Position Overview

We are seeking an experienced Solution Architect with deep expertise in OLTP Data Modeling and Data Architecture within the Telecom/Wireless industry.

This role requires a hands-on architect capable of designing and governing highly normalized transactional databases that support customer-facing mobile applications, subscriber management systems, product catalogs, order management, and activation workflows.

The ideal candidate will have strong experience with Erwin Data Modeler, Oracle Database, PL/SQL, and Python, along with a proven track record of architecting scalable, high-volume transactional systems in a telecom environment.

Note: This is an OLTP-focused role. Candidates with primary experience in Data Warehousing, BI, Analytics Engineering, Reporting, or ETL/ELT development will not be considered.

Key Responsibilities

Data Architecture & Modeling

Translate business requirements into conceptual, logical, and physical data models.
Design and maintain highly normalized (3NF) enterprise data models.
Create conceptual Entity Relationship Diagrams (ERDs) and logical data models.
Establish and govern business data definitions, standards, and naming conventions.

Oracle Database Design

Design Oracle physical schemas, including:

Tables and columns
Primary and foreign keys
Indexing strategies
Constraints and sequences
Partitioning structures

Ensure database scalability, integrity, and performance.

Erwin Data Modeling

Develop and maintain enterprise data models using Erwin Data Modeler.
Manage model versioning through Erwin Mart.
Perform forward and reverse engineering.
Utilize Complete Compare to identify and resolve schema differences.
Maintain naming standards, domains, and model governance.

PL/SQL Development & Performance Tuning

Develop and optimize complex PL/SQL code.
Analyze execution plans and identify performance bottlenecks.
Optimize indexing strategies and database queries.
Troubleshoot locking, contention, and concurrency issues in high-volume transactional environments.

Data Governance & Quality

Define data modeling standards, governance procedures, and review processes.
Develop data dictionaries and impact analysis documentation.
Establish controls for data quality, consistency, completeness, and integrity.
Ensure compliance with security and privacy requirements.

Python Automation

Develop automation tools for:

Model validation
Metadata extraction
Schema compliance checks
Data profiling
Deployment support

Required Qualifications

10+ years of Data Architecture and Data Modeling experience.
Majority of experience focused on OLTP/transactional systems.
Strong hands-on expertise with:

Erwin Data Modeler
Oracle Database
Advanced PL/SQL Development
Python

Expert understanding of:

3NF data modeling and normalization
Logical and physical data modeling
Database performance tuning
Data governance practices

Ability to work directly with business stakeholders and translate requirements into technical solutions.

Telecom/Wireless Domain Experience (Mandatory)

Candidates should possess hands-on experience in one or more of the following areas:

Subscriber and account lifecycle management
Multi-line and hierarchical account structures
Product catalogs, rate plans, and offers
Features, entitlements, compatibility, and eligibility rules
Order management, activation, and provisioning workflows
Device and equipment management
Device financing and installment plans
Mobile subscriber identifiers:

MSISDN
IMSI
ICCID/SIM
IMEI

Number portability (Port-In/Port-Out)
Telecom BSS/OSS ecosystems

Must-Have Skills

OLTP Data Modeling
Data Architecture
Erwin Data Modeler
Oracle Database
Advanced PL/SQL
Database Performance Tuning
Python Automation
Telecom/Wireless Domain Experience
Data Governance & Standards

Solution Architect OLTP Data Modeling (Telecom/Wireless)

Key skills

About this role