Oracle Billing Systems Engineer: Modernization

RETN; Warszawa; On-site; PLN 226,000 - 326,000; Full time

Benefits offered by this job

Health insurance

Training and development opportunities

Opportunities to exchange experience

Job summary

RETN, a telecom company with international exposure, seeks a Billing Systems Developer to support, improve, and modernize our existing billing platform in Riga. You will work on enhancing Oracle-based billing functionality, optimizing performance, and integrating with external systems.

This role requires ownership of critical systems and collaboration with internal stakeholders and external partners. We offer an international environment, professional development opportunities, and health

Qualifications

• Strong Oracle Database and PL/SQL development experience.
• Experience with SQL performance tuning and database optimization.
• Good understanding of REST APIs, system integrations, and Git/GitLab workflows.
• Experience maintaining business-critical enterprise applications.

Skills

Oracle PL/SQL

SQL performance tuning

REST APIs

System integrations

Git/GitLab

Experience maintaining enterprise apps

Tools

Git/GitLab

Job description

RETN, a telecom company with international exposure, seeks a Billing Systems Developer to support, improve, and modernize our existing billing platform in Riga. You will work on enhancing Oracle-based billing functionality, optimizing performance, and integrating with external systems.

This role requires ownership of critical systems and collaboration with internal stakeholders and external partners. We offer an international environment, professional development opportunities, and health