Harish vannala

Software Engineer

Hyderabad, Telangana, India8 yrs 9 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Expertise in security testing with industry-standard tools.
Strong background in telecom product testing and automation.
Proven ability to enhance testing frameworks for better efficiency.

Stackforce AI infers this person is a Telecom Testing Specialist with a focus on Security and Automation.

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Skills

Core Skills

Security TestingAutomation TestingTelecom Domain KnowledgeFunctional TestingNetworking

Other Skills

Session Border ControllersSmart Regression DevelopmentNessusCodenomiconMcAfeeWebInspectTLS toolsRestFuzzPCRFDiameter ProtocolAgile TestingRegression TestingPythonPython ProgrammingManual Testing

About

I have strong experience in testing telecom products such as PCRF and Session Border Controllers (SBCs), which involve Diameter and SIP (Session Initiation Protocol)–based communication. I also have hands-on experience in security testing using various industry-standard tools, including Nessus, WebInspect, McAfee, Codenomicon, TLS tools, and RestFuzz. In addition, I have good knowledge of Python programming and network deployments, enabling me to analyze, automate, and validate complex systems efficiently. I am now looking to build a career in the cybersecurity domain, starting at an entry level where I can contribute to the organization’s growth while continuously enhancing my skills and advancing in the field.

Experience

8 yrs 9 mos

Total Experience

4 yrs 4 mos

Average Tenure

4 yrs 9 mos

Current Experience

Oracle

SDE-III

Jul 2021 – Present · 4 yrs 9 mos · Hyderabad, Telangana, India · Remote

At Oracle, I am responsible for contributing to the quality and security of the Session Border Controller (SBC) product through a combination of tool development, automation, and advanced security validation.
Smart Regression Development: Enhanced and maintained the in-house Smart Regression framework to provide highly accurate, optimized, and targeted test selection for each patch and release cycle. This contributed to faster validation, increased code coverage, and early detection of critical issues.
Security Testing: Performed comprehensive security testing using a wide range of industry-leading tools including Nessus, Codenomicon, McAfee, WebInspect, TLS tools, and RestFuzz. Proactively identified vulnerabilities, improved product resilience, and ensured compliance with security best practices.
Regression Automation: Led and executed automated regression testing for every release, ensuring stability, performance, and high-quality product delivery.
Raid Application Maintenance: Maintained and enhanced the internal Raid web application, improving usability, performance, and reliability. Collaborated with cross-functional teams to support feature upgrades and address operational issues.
Overall, my role focuses on strengthening product quality, optimizing automation pipelines, and improving security posture—while consistently collaborating with development and QA teams to deliver robust and customer-ready releases.

Session Border ControllersSecurity TestingAutomation TestingSmart Regression DevelopmentNessusCodenomicon+4

Hcl technologies

3 roles

Senior Software Engineer

Promoted

Mar 2019 – May 2021 · 2 yrs 2 mos · Chennai, Tamil Nadu, India

HCL (Client: Cisco) Experience
Worked on Cisco’s PCRF (Policy Charging & Rules Function) product, focusing on end-to-end functional, regression, and feature validation of telecom policy management systems.
Diameter Protocol Expertise: Strong hands-on experience with the Diameter application-layer protocol, including command flows, interfaces, and policy enforcement mechanisms.
Feature & Release Validation: Performed release-wise feature testing using Agile methodology, ensuring high-quality deliverables for every sprint and release cycle.
Telecom Domain Knowledge: Collaborated closely with development and system teams to validate PCRF integrations, policy decisions, subscriber flows, and charging functions in real-time environments.

PCRFDiameter ProtocolAgile TestingFunctional TestingRegression TestingTelecom Domain Knowledge

Software Engineer

Nov 2017 – Feb 2019 · 1 yr 3 mos · Chennai, Tamil Nadu, India

HCL (Client: Cisco) – Fresher Project Experience
Started my career working on Cisco’s VDS-TV (Video Delivery System – Television) product, focusing on automation and regression testing.
Python Automation: Worked on automated test scripts using Python, enhancing existing scripts and ensuring smooth execution across releases.
Regression Testing: Performed release-wise regression testing, validating product stability and quickly identifying functional issues.
Script Maintenance: Troubleshot and fixed automation script failures, improving reliability and execution coverage of the automated test suite.
Video Delivery Domain Exposure: Gained hands-on experience in testing IPTV/Video delivery workflows, end-to-end streaming validation, and product performance under different network conditions.

PythonAutomation TestingRegression Testing

Intern

Mar 2017 – Oct 2017 · 7 mos · Chennai, Tamil Nadu, India

Professional Training (HCL)
Completed an intensive 6-month professional training program covering:
Networking (CCNA Level): Gained strong foundational knowledge in networking concepts, protocols, routing, switching, and network troubleshooting.
Python Programming: Trained in Python fundamentals, scripting, and automation techniques used in test environments.
Testing Methodologies: Covered both Manual Testing and Automation Testing concepts, including STLC, test design techniques, test execution, defect tracking, and automation frameworks.
This training provided a strong technical foundation and prepared me for real-world projects in telecom, automation, and product testing.

NetworkingPython ProgrammingManual TestingAutomation Testing