Senior Software Engineer: Oracle PL/SQL + .NET Backend

ICterra Information and Communication Technologies; Beşiktaş; On-site; TRY 350,000 - 550,000; Full time

Job summary

ICterra Information and Communication Technologies seeks an experienced Senior Software Engineer with strong Oracle Database and PL/SQL development expertise, plus hands-on .NET/C#. You will work on high-volume, transaction-heavy enterprise applications and contribute to modernization of critical business processes.

The role focuses on Billing, Order Management, Invoicing/Invoice, Collections, and Payment Gateway development, collaborating with cross-functional teams to deliver robust backend

Qualifications

• Hands-on software development experience in high-volume, transactional environments such as Billing, Order Management, Invoicing or Collections.
• Minimum 5 years of hands-on Oracle Database and PL/SQL development experience.
• Advanced knowledge of SQL/PLSQL, including packages, procedures, functions, triggers, views, and complex queries.
• Strong experience with Oracle database performance tuning, indexing, and execution plan analysis.

Responsibilities

• Design, develop, optimize, and maintain complex software solutions using Oracle PL/SQL and .NET/C#.
• Develop and maintain PL/SQL packages, procedures, functions, triggers, views, and complex SQL queries.
• Implement database-side business logic and data processing solutions.
• Design and optimize database structures, queries, indexes, and data access patterns for high-volume transactional systems.
• Perform SQL/PLSQL performance tuning, execution plan analysis, troubleshooting, and production issue resolution.
• Develop backend applications and services using C#, ASP.NET, .NET Framework, and .NET Core.
• Develop and maintain REST/SOAP integrations and backend services interacting with Oracle Database.
• Participate in analysis, design, development, testing, deployment, and production support activities.
• Contribute to software and database architecture decisions, coding standards, code reviews, and technical documentation.
• Work closely with business, analysis, testing, and architecture teams on enterprise business processes.

Skills

Oracle PL/SQL

SQL

C#

ASP.NET

REST APIs

Tools

Git

CI/CD

DevOps

Kibana

Elasticsearch

Job description

ICterra Information and Communication Technologies seeks an experienced Senior Software Engineer with strong Oracle Database and PL/SQL development expertise, plus hands-on .NET/C#. You will work on high-volume, transaction-heavy enterprise applications and contribute to modernization of critical business processes.

The role focuses on Billing, Order Management, Invoicing/Invoice, Collections, and Payment Gateway development, collaborating with cross-functional teams to deliver robust backend