Rupin Das
Automation Test Engineer
Bangalore
Summary
Test Engineer with 5+ years of experience in Supporting and Automation Testing for TMO customers in 5G NSA calls for X2AP and S1AP Protocol in L2 layer and L3 layer. Use the Two-Way Active Measurement Protocol (TWAMP) to measure round-trip IP performance between any two TWAMP-enabled units deployed in a network. With TWAMP. Configuration of QOS protocol for BTS. Feature Handled Cloud Native and Kubernetes for networking and service management Operations Support System (OSS).
Overview
5
5
years of professional experience
1
1
Certification
3
3
Languages
Work History
Automation Test Engineer
Nokia Solution and Network Limited
03.2021 - Current
- Around 5 years. of work experience in data communication Layer 2 and Layer 3 protocol.
- Handling customer escalation and driving it to closure.
- Good experience in black box testing: functional, system, and performance.
- Performing RCA (root cause analysis) for a customer escalated issue and adding a test scenario.
- Having knowledge in test automation with Robot Framework/Python.
- Proficient in protocol testing (L2 and L3 devices) and sound knowledge in routing and switching concepts.
- Good experience in packet tracing/sniffing tools like Wireshark, tcpdump, and packet generating tools like Scapy, Spirent, and IXIA.
- Good experience in handling firewall protocol rules for ingress rate in BTS.
- · Having Good Experience in Top, Sync, Top F and time synchronizations protocol with validating network synchronization and performance, particularly in Ethernet-based networks and 5G deployments.
- · Used for testing various aspects of network synchronization, including PTP (Precision Time Protocol), SyncE (Synchronous Ethernet), and other timing-related technology
- · Involved in Customer Found Defects Reproduction & verification of Fixes & Exploratory Testing for Routing Module.
- · Discussion with the Product Management Team and Accounting/Marketing team to understand the customer requirements & scope the testing.
- · Performed Functional testing and Protocol Testing for various L2 and L3 features (i.e., OSPF, LAG, LACP, VLAN, BGP, IGMP, PIM) on single unit as well as 8-unit stack.
- · Creation & execution of Test case, Test Plans for Feature and scoping of testing cycle.
- · Responsible for different platform interaction testing. Planning and execution of Scale and Performance test.
- · Involved in product boot camp training & provided internal training to other engineers.
- · Verifying modification PR, create test plan, execute and automate.
- · Check code coverage for the RLI and add test case for any gap.
- · Proficient in Protocol Testing like (UDP, TCP) for Transport Layer feature execution
- · ImplementedCI/CD-triggered nightly UI test pipelines integrated with Jenkins/GitLab CI.
- · Designed and executed automated test suites using Pytest and Robot Framework for functional and regression testing of Layer 2/3 network protocols.
- · Led end-to-end network switching validation including VLAN, STP, and routing protocols (OSPF, BGP) across CISCO and Juniper platforms.
- · Developed Python-based tools for traffic generation and packet inspection, integrating with CISCO IOS/NX-OS CLI via SSH/API.
- · Performed network testing under real-world conditions: link flaps, failovers, latency simulations, and throughput benchmarking
- · Collaborated with developers and DevOps to integrate automated tests into CI/CD pipelines, significantly reducing test cycle times.
- · Handled cloud related feature in Technologies like Kubernetes , pod, cluster for the
- Actively participated in agile ceremonies such as sprint planning and retrospective meetings, providing valuable feedback on testing activities.
- Increased software reliability, performing thorough regression tests to ensure seamless performance after updates.
- Achieved higher levels of test accuracy by designing and executing data-driven tests for various input scenarios.
- Mentored junior team members, sharing knowledge and insights on automation testing tools and techniques to foster continued growth and success within the team.
- Enabled faster issue resolution, providing detailed bug reports with clear steps to reproduce and suggested fixes.
- Implemented advanced automation frameworks such as Selenium WebDriver or Appium, optimizing code reusability and maintainability across projects.
- Ensured timely completion of all assigned tasks within deadlines while adhering to established quality parameters.
- Strengthened collaboration with developers, identifying and addressing issues in the early stages of the development process.
- Contributed to improved user experience with comprehensive usability testing across multiple platforms and devices.
- Performed gap analysis procedures and detailed data reviews to optimize implementation.
- Maintained, debugged and optimized automation programs.
- Created detailed test cases for use on diverse projects.
- Tested equipment for proper operation and freedom from defects.
- Developed and maintained defect databases for known issues.
Senior Network Test Engineer
Nokia Solution and Network Limited
01.2021 - 01.2025
- Roles and Responsibilities
- Around 9 yrs. of work experience in data communication Layer - 2 & Layer -3 protocol.
- Handling of Customer escalation and drive to closure.
- Good experience in Black Box Testing - Functional, System, and Performance.
- Performing RCA (Root cause analysis) for customer escalated issue and adding test scenario.
- Having knowledge in test automation with robot framework/Python.
- Proficient in Protocol Testing (L2 and L3 devices) and sound knowledge in Routing and Switching concept
- Good Experience in packet tracing/sniffing tools like Wireshark, tcpdump & packet generating tools like Scapy, Spirent, IXIA.
- Good Experience in handling firewall protocol rules for ingress rate in BTS.
- Having Good Experience in Top, Sync, Top F and time synchronizations protocol with validating network synchronization and performance, particularly in Ethernet-based networks and 5G deployments.
- Used for testing various aspects of network synchronization, including PTP (Precision Time Protocol), SyncE (Synchronous Ethernet), and other timing-related technology
- Involved in Customer Found Defects Reproduction & verification of Fixes & Exploratory Testing for Routing Module.
- Discussion with the Product Management Team and Accounting/Marketing team to understand the customer requirements & scope the testing.
- Performed Functional testing and Protocol Testing for various L2 and L3 features (i.e., OSPF, LAG, LACP, VLAN, BGP, IGMP, PIM) on single unit as well as 8-unit stack.
- Creation & execution of Test case, Test Plans for Feature and scoping of testing cycle.
- Responsible for different platform interaction testing. Planning and execution of Scale and Performance test.
- Involved in product boot camp training & provided internal training to other engineers.
- Verifying modification PR, create test plan, execute and automate.
- Check code coverage for the RL1 and add test case for any gap.
- Proficient in Protocol Testing like (UDP, TCP) for Transport Layer feature execution
- Implemented CI/CD-triggered nightly UI test pipelines integrated with Jenkins/GitLab CI.
- Designed and executed automated test suites using Robot Framework for functional and regression testing of Layer 2/3 network protocols.
- Led end-to-end network switching validation including VLAN, STP, and routing protocols (OSPF, BGP) across CISCO and Juniper platforms.
- Developed Python-based tools for traffic generation and packet inspection, integrating with CISCO IOS/NX-OS CLI via SSH/API.
- Performed network testing under real-world conditions: link flaps, failovers, latency simulations, and throughput benchmarking.
- Collaborated with developers and DevOps to integrate automated tests into CI/CD pipelines, significantly reducing test cycle times.
- Handled cloud related feature in Technologies like Kubernetes , pod , cluster for the Automation of the web-based configuration and monitoring interface of OpenWRT
- Sonic NOS uses Selenium WebDriver in Python.
- Built scalable test automation infrastructure supporting dynamic topology creation (spine-leaf, star, mesh) across Cisco, Sonic, and OpenWRT devices.
- Enabled cross-platform testing (Cisco ↔ Sonic ↔ OpenWRT) in a vendor-neutral.
- Project Overview: This project focused on building in robot framework for validating L2/L3 switching and routing features across multiple Network Operating Systems (NOS) including Kubernetes
Education
Master of Science - Post Graduation Diploma in Advance Computing
CDAC CHENNAI
Chennai, India 04.2020 - 01.2021
Mechanical Engineering
Gyan Ganga Institute of technology and Science
High School Diploma -
Maharishi Vidya Mandir
Jabalpur, India 04.2001 -
Skills
Languages
Python
Cloud
Kubernetes, docker cloud computing
Databases
Microsoft Azure SQL, MySQL
Tools and Services
Git, JIRA, QC hp, Troubleshooting - Wireshark Power Bi, Selenium
Collaboration Tools
Jira, Confluence, MS Teams, Kubernetes
Experience with JIRA
Skilled in Git
Mobile testing expertise
Defect tracking tools
Expertise in JavaScript
Strong Python skills
Load and performance testing
Certification
Cloud Computing from Cdac (Centre for Development of Advanced Computing) Chennai
Interests
Reading
Software
Python,Kubernates ,Cluster , Pod creation
Timeline
Automation Test Engineer
Nokia Solution and Network Limited
03.2021 - Current
Senior Network Test Engineer
Nokia Solution and Network Limited
01.2021 - 01.2025
Master of Science - Post Graduation Diploma in Advance Computing
CDAC CHENNAI
04.2020 - 01.2021
High School Diploma -
Maharishi Vidya Mandir
04.2001 -
Mechanical Engineering
Gyan Ganga Institute of technology and Science