Primary Skills: Erwin Data Modeler, Oracle, PL/SQL, Python, OLTP Data Modeling, Telecom/Wireless Domain
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:
- Number portability (Port-In/Port-Out)
- Telecom BSS/OSS ecosystems
Preferred Qualifications
- TM Forum SID Data Model experience
- Telecom platforms such as:
- Amdocs
- Netcracker
- Ericsson
- CSG
- Oracle Exadata
- Oracle GoldenGate
- Schema version control and automation
- Temporal and history-based data modeling
- Supertype/Subtype modeling patterns
- Capacity planning and scalability modeling
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
Nice-to-Have Skills
- TM Forum SID
- Oracle Exadata
- Oracle GoldenGate
- Amdocs / Netcracker / Ericsson / CSG
- Schema Automation & Version Control
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.
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