Vishal Singh — QA Engineer

Sr. QA | 7+ Years | Automation | API & Mobile Testing | Performance | FinTech | CI/CD | AI-driven Testing Innovative Sr. QA with 7+ years of experience delivering scalable, stable, and high-quality software testing solutions across Automation, API, Mobile, Performance, and AI-powered testing. Strong advocate of integrating GenAI tools into testing workflows to accelerate delivery, optimize coverage, and reduce time-to-market. What I Do: * Build end-to-end automation frameworks using Selenium, TestNG, Cucumber BDD, JUnit & POM * Design & execute API automation (RestAssured / Postman) and mobile testing (Android/iOS) * Implement performance testing & benchmarking using JMeter * Integrate automation suites into CI/CD pipelines (Jenkins, Azure DevOps) * Leverage AI tools (Cursor AI & ChatGPT) to accelerate automation testing, enhance code quality, automate test data creation, and improve overall QA efficiency Key Achievements: * Increased automation coverage from 20% → 65%, reducing regression cycle time by 50% * Improved QA productivity by 20% using Cursor AI; achieved 30% QA effort reduction via ChatGPT-powered test design * Enhanced defect detection speed by 40% using AI-backed proactive monitoring dashboards * Reduced production defect leakage from 7% → 1.5%, moving towards near-zero defect releases * Mentored & led a team of 5 QA engineers, establishing best practices & execution excellence Skills & Tools 1) Automation & Frameworks: Selenium WebDriver | TestNG | Cucumber BDD | JUnit | POM | IntelliJ | Eclipse 2) API & Performance Testing: RestAssured | Postman | JMeter 3) CI/CD & DevOps: Jenkins | Azure DevOps | Git | Linux (Ubuntu/RHEL) 4) AI & Monitoring: ChatGPT | Cursor AI | Grafana | Redash | AWS CloudWatch 5) Databases & Utilities: MySQL | PopSQL | Robo3T 6) Project & Domain Expertise: Agile/Scrum | FinTech QA | JIRA | Windows What I Believe I believe in blending quality with speed, driving engineering excellence, and ensuring every release is reliable, scalable, and aligned with business goals

Stackforce AI infers this person is a Fintech QA expert with strong automation and AI-driven testing capabilities.

Location: New Delhi, Delhi, India

Experience: 7 yrs 5 mos

Skills

Automation Testing
Api Testing
Performance Testing
Ci/cd Integration
Mobile Testing
Payment Gateway Testing
Manual Testing

Career Highlights

Increased automation coverage from 20% to 65%
Reduced production defect leakage from 7% to 1.5%
Mentored a team of 5 QA engineers

Work Experience

Castler

Sr. QA (4 yrs 1 mo)

Galentic Technologies Private Limited

Software Test Engineer (5 mos)

MMAD Communications Pvt. Ltd.

Software Test Engineer (9 mos)

Promien consultancy services (P) Ltd.

Software Test Engineer (2 yrs 2 mos)

Education

B.tech at Allahabad Institute of Engineering & Technology

B.tech at Allahabad Institute of Engineering & Technology, Allahabad

Vishal Singh

QA Engineer

New Delhi, Delhi, India7 yrs 5 mos experience

Most Likely To SwitchAI Enabled

Key Highlights

Increased automation coverage from 20% to 65%
Reduced production defect leakage from 7% to 1.5%
Mentored a team of 5 QA engineers

Stackforce AI infers this person is a Fintech QA expert with strong automation and AI-driven testing capabilities.

Contact

Skills

Core Skills

Automation TestingApi TestingPerformance TestingCi/cd IntegrationMobile TestingPayment Gateway TestingManual Testing

Other Skills

Selenium JavaTestNGPostmanRestAssuredJMeterAutomation Framework DesignAI-assisted Testing (Cursor AI, ChatGPT)SQLJenkins CI/CDGrafanaRedashAWS CloudWatchFintech Payment SystemsAgile & ScrumSelenium

About

Experience

7 yrs 5 mos

Total Experience

1 yr 10 mos

Average Tenure

4 yrs 1 mo

Current Experience

Castler

Sr. QA

Mar 2022 – Present · 4 yrs 1 mo · Saket, Delhi, India · On-site

Roles & Responsibilities:
1) Leading end-to-end quality assurance across Web, Mobile (Android/iOS) and API layers for Castler’s Digital Escrow platform, ensuring secure and scalable transaction flows for high-volume fintech customers.
2) Performing Manual, Automation, API and Performance Testing to validate complex payment journeys including UPI, IMPS, NEFT, Cards and Net Banking integrations.
3) Designing and enhancing automation frameworks using Selenium with Java (TestNG, Maven, POM) to improve test maintainability, scalability and regression efficiency.
4) Implementing API testing and automation using Postman and RestAssured, validating banking APIs, fund movement logic, KYC workflows and third-party integrations.
5) Introducing AI-assisted testing practices using Cursor AI and ChatGPT for automated test case generation, RCA support and test data preparation, improving QA productivity by ~25%.
6) Supporting QA planning and mentoring junior QA engineers while driving improvements in test strategy, automation adoption and quality standards.
7) Integrating automation suites with Jenkins CI/CD pipelines to enable automated regression cycles and faster release validation.
8) Executing performance and load testing using JMeter, identifying system bottlenecks and improving response times by ~30%.
9) Implementing monitoring and observability dashboards using Grafana, Redash and AWS CloudWatch, reducing production issue detection time by 40%+.
10) Collaborating closely with Product Managers, Developers and DevOps teams for sprint planning, defect triage, RCA and stable production releases with minimal defect leakage
Skills: Selenium Java, TestNG, Postman, RestAssured, JMeter, API Testing, Automation Framework Design, AI-assisted Testing (Cursor AI, ChatGPT), Mobile Testing, SQL, Jenkins CI/CD, Grafana, Redash, AWS CloudWatch, Fintech Payment Systems, Agile & Scrum

Selenium JavaTestNGPostmanRestAssuredJMeterAPI Testing+13

Galentic technologies private limited

Software Test Engineer

Sep 2021 – Feb 2022 · 5 mos · Gurgaon · On-site

Roles & Responsibilities:
1) Tested Indus Forex Card mobile and web application functionalities
2) Performed regression, smoke, integration, and functional testing during each release cycle
3) Collaborated with dev teams to analyze requirements and update test cases post review
4) Focused on Android & iOS compatibility and seamless transaction validation
#MobileTesting | #RegressionTesting | #ManualTesting | #IntegrationTesting

Mobile TestingRegression Testing

Mmad communications pvt. ltd.

Software Test Engineer

Dec 2020 – Sep 2021 · 9 mos · Gurugram, Haryana, India · On-site

Roles & Responsibilities:
1) Tested iPay (IRCTC Digital Payment Gateway) with multiple payment modes including UPI, Debit/Credit Cards, and Auto-Debit
2) Conducted functional, regression, and system testing on real and cloud-based devices
3) Created and executed test cases based on business logic and verified backend data via Robo 3T and SFTP (for Mobile and backend system)
4) Performed regular regression, functional, and integration testing pre and post release
5) Collaborated with developers for issue triage and resolution
#PaymentGatewayQA | #AndroidTesting | #iOSTesting | #RegressionTesting | #Postman | #MySQLWorkbench | #SystemTesting | #Robo3T | #TestCasesDesign | #CrossPlatformTesting

Payment GatewaysDatabase TestingPayment Gateway Testing

Promien consultancy services (p) ltd.

Software Test Engineer

Sep 2018 – Nov 2020 · 2 yrs 2 mos · Noida, Uttar Pradesh, India · On-site

Roles & Responsibilities:
1) Participated in test planning, scenario creation, and review discussions with senior QA and development teams
2) Designed and executed test cases based on business requirements and functional specifications
3) Performed manual testing including smoke, sanity, functional, regression, and integration test cycles
4) Logged, tracked, and validated bugs using tools like JIRA and contributed to root cause analysis discussions
5) Maintained detailed documentation of test cases, test results, and defect reports for audit and review purposes
6) Actively participated in daily stand-ups and sprint retrospectives as part of Agile teams
#ManualTesting | #TestCaseDesign | #DefectTracking | #RegressionTesting | #AgileQA

Manual TestingTest Case Design