Technical Lead, Quality Assurance (Database Testing)

Rakuten Asia Pte Ltd; Bengaluru; On-site; INR 3,000,000 - 5,100,000; Full time

Job summary

Rakuten Symphony in Bengaluru seeks a Technical Lead/Senior QA Engineer to architect and lead end-to-end integration testing across OSS platforms. You will validate CM/IM/FM/PM domains, design automation, and drive CI/CD quality gates in a cloud-native telco environment.

You will work with Java/Python, Redis, Graph DBs, Kafka, and containerized tech like Docker/Kubernetes to ensure scalable, reliable network services and observability pipelines.

Qualifications

• Bachelor’s or Master’s in CS, Telecom, or related engineering.
• 5–10 years in Software QA with telecom OSS.
• Experience in distributed systems, high availability, real-time telemetry.
• Strong analytical and cross-functional collaboration skills.
• Hands-on validation across CM/IM/FM/PM domains.

Responsibilities

• Architect and execute end-to-end integration testing across OSS environments.
• Design automated validation frameworks for CM engines.
• Validate graph databases and real-time topology data.
• Performance testing of Redis and high-throughput systems.
• Develop test libraries using Java or Python.
• Validate observability stacks with Prometheus/Grafana and Kafka.
• Lead AI/ML-driven RCA and closed-loop automation.
• Integrate quality gates into CI/CD pipelines.

Skills

OSS & Telecom

Validation testing

Multi-vendor integration

Automation testing

Test strategy design

Education

Bachelor’s or Master’s in CS/Telecom

Tools

Selenium

Playwright

PyTest

TestNG

REST Assured

Postman

Kafka

Docker

Kubernetes

Helm

Elasticsearch

PostgreSQL

Cassandra

Job description

Job Description

Greetings From Rakuten Symphony! 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: https://symphony.rakuten.com 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!

About Rakuten Group

About Rakuten Group, Inc. (TSE: 4755) is a global leader in internet services that empower individuals, communities, businesses and society. Founded in Tokyo in 1997 as an online marketplace, Rakuten has expanded to offer services in e-commerce, fintech, digital content and communications to 2 billion members around the world. The Rakuten Group has over 30,000 employees, and operations in 30 countries and regions. For more information visit https://global.rakuten.com/corp/.

Role Overview

We are seeking a highly experienced Technical Lead/Senior QA Engineer to design, architect and lead end-to-end integration testing and validation strategies across our OSS (Operations Support Systems) platforms. In this role, you will drive quality governance for complex multi-vendor ecosystems spanning Configuration Management (CM / Config Manager), Inventory Management (IM), Fault Management (FM), Performance Management (PM), Application Performance Monitoring (APM) and Cloud Observability workflows.

Key Responsibilities

• Integration & E2E Validation: Architect and execute comprehensive integration testing strategies across highly interconnected OSS environments, ensuring flawless structural data orchestration between northbound/southbound APIs, multi-vendor EMS/NMS and physical/virtual network elements.
• Configuration Management (CM) Validation: Design and drive automated validation frameworks for CM engines to audit network configurations, track baseline drift, validate parameters (e.g., cell parameters, routing tables) and verify automated network provisioning rollbacks.
• Database & Network Topology Testing: Validate large-scale Graph databases (e.g., JanusGraph)utilized for real-time network topology mapping, complex entity relationship queries and crossdomain dependency modeling.
• Performance & Cache Validation: Performance-test and validate distributed Redis DB implementations, ensuring active data structures, eviction policies, session states and highfrequency pub/sub message queuing behave reliably under simulated peak telecom traffic loads.
• Test Automation Frameworks: Design, build and scale custom test automation frameworks from scratch using Java and/or Python leveraging industry-standard tools such as Selenium, Playwright, PyTest, TestNG and REST Assured.
• Observability & Streaming Validation: Validate cloud-native observability stacks (Prometheus,Grafana, OpenTelemetry) along with high-throughput distributed messaging and event data logs streams orchestrated via Apache Kafka clusters.
• AIOps & Closed-Loop Automation: Lead end-to-end quality validation initiatives for AI/ML-driven root cause analysis (RCA), predictive network analytics, anomaly detection algorithms and closedloop self-healing operational workflows.
• CI/CD/CT Quality Gates: Embed robust automated quality validation gates, automated continuous regression suites and infrastructure tests seamlessly into DevOps deployment pipelines via Jenkins or GitLab CI/CD/CT engines.

Required Technical Skills & Competencies

OSS & Telecom Domain Expertise

• Comprehensive understanding of the FCAPS structural framework and modern Telecom Service Assurance principles.
• Hands-on validation experience covering Configuration Management (CM), Inventory Management (IM), Fault Management (FM) and Performance Management (PM) domains.
• Expertise in parsing network topology nodes, checking delta configurations and validating multivendor EMS/NMS integration points.

Database & Architectural Skills

• Strong querying and structural knowledge of Graph Databases along with graph query languages.
• Deep understanding of Redis DB core architecture, including data structures, replication, eviction policies, clustering and Pub/Sub functionality.
• Proven experience verifying log, search and transactional accuracy across distributed data backends including Elasticsearch, PostgreSQL and Cassandra.

Automation Engineering

• Advanced proficiency using Python or Java to design test libraries, custom keywords and objectoriented testing suites.
• Robust hands-on framework experience with programmatic API Testing Tools (REST Assured,Postman) and message brokers (Kafka).
• Solid architectural knowledge of containerized deployments utilizing Docker, Kubernetes orchestration and Helm charts.

Experience & Qualifications

• 5-10 years of direct, hands-on experience in Software Quality Engineering, with a heavy emphasis on Telecom OSS and Service Assurance systems.
• Proven background validating highly distributed distributed systems with demanding highavailability, real-time telemetry and complex data persistence requirements.
• Excellent analytical, root-cause isolation and communication skills to collaborate efficiently across multi-vendor technical domains.
• Education: Bachelor’s or Master’s degree in Computer Science, Telecommunications Engineering, or a related technical engineering field.

Rakuten Shugi Principles

• Always improve, always advance. Only be satisfied with complete success - Kaizen.
• Be passionately professional. Take an uncompromising approach to your work and be determined to be the best.
• Hypothesize - Practice - Validate - Shikumika. Use the Rakuten Cycle to success in unknown territory.
• Maximize Customer Satisfaction. The greatest satisfaction for workers in a service industry is to see their customers smile.
• Speed!! Speed!! Speed!! Always be conscious of time. Take charge, set clear goals, and engage your team.

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: https://symphony.rakuten.com 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!