Network Engineering - Engineer

Overview

Design, test, validate, and support network technologies, with a specialised focus on International Roaming (IREG) testing. Contribute telecommunications expertise, automation practices, and DevSecOps methodologies to improve network performance, reliability, and customer experience.

What you'll do

• Execute and support end-to-end IREG testing across voice, SMS, data, and emerging services such as VoLTE and 5G roaming.
• Coordinate with international carrier partners to plan, schedule, and complete roaming test cases and validations.
• Validate roaming interoperability, including network signalling, billing and charging scenarios, and fraud and security controls.
• Analyse test outcomes and identify defects, configuration gaps, or interoperability issues.
• Support certification and onboarding of new roaming partners to ensure compliance with Telstra and industry standards.
• Contribute to the design, integration, and testing of network platforms and services to meet business and regulatory requirements.
• Develop and execute test strategies, test cases, and automation frameworks to improve testing efficiency and coverage.
• Support troubleshooting of complex network and roaming issues across multiple domains and vendors.
• Collaborate with Product Owners, architects, and vendors to translate requirements into technical solutions.
• Build and enhance test automation capabilities aligned with DevSecOps and CI/CD practices.
• Create repeatable testing patterns and reusable frameworks.
• Review processes to improve the speed, quality, and reliability of testing and delivery.
• Work with international carriers, roaming partners, internal network engineering and operations teams, and vendors supplying network platforms and solutions.
• Assist in evaluating vendor capabilities and interoperability readiness for roaming services.
• Ensure successful completion of IREG testing and onboarding of roaming partners.
• Maintain high standards of network quality, interoperability, and compliance.
• Contribute to continuous improvement of testing frameworks and automation.
• Support delivery of a reliable and seamless international roaming customer experience.

What you'll need

• Strong understanding of mobile core networks, including 3G, 4G, and 5G, and roaming architecture.
• Experience with IREG testing, roaming certification, or inter-operator testing.
• Knowledge of signalling protocols including SS7, MAP, CAMEL, and Diameter.
• Knowledge of IP networking fundamentals, including TCP/IP, DNS, and routing.
• Exposure to network testing tools, automation frameworks, and CI/CD pipelines.
• Strong analytical and problem-solving skills in complex telecom environments.
• Ability to interpret test results and translate them into actionable engineering outcomes.
• Experience working in Agile and DevOps environments.
• Strong stakeholder engagement and communication skills.

Details

• Employment type: Permanent.
• Location: Telstra ICC Pune.
• Ways of working include Agile delivery aligned to quarterly priorities and OKRs.
• Collaborate across cross-functional squads and global partners.
• Focus on automation, quality engineering, and operational excellence.