Senior Test Engineer

Why should you choose us?

Rakuten Symphony is reimagining telecom, changing supply chain norms and disrupting outmoded thinking that threatens the industry’s pursuit of rapid innovation and growth. Based on proven modern infrastructure practices, its open interface platforms make it possible to launch and operate advanced mobile services in a fraction of the time and cost of conventional approaches, with no compromise to network quality or security. Rakuten Symphony has operations in Japan, the United States, Singapore, India, South Korea, Europe, and the Middle East Africa region. For more information, visit:

Building on the technology Rakuten used to launch Japan’s newest mobile network, we are taking our mobile offering global.

To support our ambitions to provide an innovative cloud-native telco platform for our customers, Rakuten Symphony is looking to recruit and develop top talent from around the globe. We are looking for individuals to join our team across all functional areas of our business – from sales to engineering, support functions to product development.

Let’s build the future of mobile telecommunications together

Required Technical Skills:

• OSS Systems: Expertise in telecom management, Rollout tooling & process, Service assurance, FCAPS & Orchestration tool.
• Experience with specific OSS vendors (Ericsson ENMS, Nokia NetAct, Huawei U2000, Cisco NSO) or similar platforms
• Testing Tools: JIRA, Jenkins, Git, Postman, JMeter
• Programming: Python, Java, Shell scripting, SQL,
• Protocols: SNMP, REST, SOAP, 3rd Party APIs
• Telecom Knowledge: 3GPP standards, network topology, KPI analysis
• Cloud & Virtualization: Docker, Kubernetes, OpenStack

Key Responsibilities:

• Architect comprehensive test strategies for OSS platforms supporting 4G/5G networks.
• In-depth knowledge of OSS functionalities and processes (inventory management, service provisioning, trouble ticketing, etc.).
• Proven expertise in testing network management systems (Fault, Configuration, Accounting, Performance, Security - FCAPS)
• Experience with monitoring and observability tools (Prometheus, Grafana, Kibana)
• Deep understanding of telecom network technologies (RAN, Core, Transport, BSS)
• Strong experience with OSS protocols and interfaces (SNMP, NETCONF/YANG, REST APIs, Kafka)
• Working experience in container orchestration platforms (Kubernetes, Openstack) for cloud-native OSS
• Proven expertise for network provisioning & commissioning via ZTP and Orchestration tool.
• Ability to fully understand system logs, test tool logs and use this understanding for debugging issues and identifying accurate root causes for the problems seen on the system under test or in the network
• Analyze client requirements and identify opportunities for improvement within their OSS landscape.
• Work closely with cross-functional teams (development, operations, sales) to ensure successful project delivery.
• Good understanding of K8S Architecture and CNF Life Cycle Management & working knowledge with Helm, json, yaml etc.
• Proficiency in SQL for database validation and test data management
• Working expertise to create/build test plan as per the test strategy of the feature.
• Expertise in executing test cases and validating the test scenarios as per the solution design expectations.
• 3rd party integration with OSS applications & Inventory data management system.
• Ability to align testing strategies with business objectives and digital transformation goals
• Strong working experience in scrum process & Agile delivery model.

Required Qualifications:

• Bachelor's/Master's degree in Computer Science, Telecommunications, or related field
• 10-15 years of hands-on experience in OSS application testing
• ISTQB Advanced Level certification preferred.
• Experience with Agile/Scrum methodologies
• Strong analytical and problem-solving skills