Quality Leadership
Team scaling (2→20+), OKR planning, roadmaps, performance reviews.
Available — Senior SDET · QA Lead · Manager Shipping AI-native QA
Quality that scales.
Now powered by AI.
I’m Vinayak —
10+ years building quality at scale — FinTech payments, Blockchain, SuperApps, and AI-powered test automation with LangChain, RAGAS, and n8n.
Bengaluru, IndiaOpen to Singapore · Netherlands · UAE
About
A quality leader at the AI × FinTech × Web3 intersection
I’m a Full Stack QA Engineer turned Engineering Manager with 10+ years of experience scaling quality for billion-dollar payment platforms. I’ve led QA organizations from 0→1 at multiple Y Combinator-backed startups, owned quality for Booking.com’s FinTech disbursement systems processing $B in partner payments, and built AI-powered test automation using LangChain, RAGAS, and n8n. My niche sits at the intersection of QA leadership, AI/LLM evaluation, FinTech, and Web3.
I believe the future of QA is continuous, automated, and AI-assisted — not manual test execution.
I enjoy ambiguity, and I'm excited about creating engineering practices from first principles.
10+
Years Experience
5
Companies as QA Lead/Manager
2
YC-Backed Founding Roles
20+
Engineers Mentored
Open to: Senior SDET · QA Lead · QA Manager · Staff Engineer
What I bring
Six pillars of impact
AI in QA
RAG evaluation (RAGAS), LangChain, n8n agentic automations, LLM test generation.
Automation Engineering
Playwright, RestAssured, OkHttp, Appium, Cypress, Selenium.
FinTech & Payments
PCI-DSS, GDPR, AML/KYC, Adyen, Stripe, Mastercard VCC.
Blockchain & Web3
WaaS, MPC Auth, NFT, Solana, MetaMask, dApps.
CI/CD & Infrastructure
Jenkins, GitHub Actions, GitLab, Docker, AWS, Terraform.
AI Lab — Featured
Bringing LLMs, agents & RAG into production-grade QA.
I don’t just test AI systems — I use AI to test everything else. Building agentic pipelines that triage regressions, generate tests, and evaluate LLM outputs at Booking.com scale.
Agentic QA automations at Booking.com
Built n8n + LangChain pipelines that auto-triage regressions, trigger targeted suites, and post triaged failures to Slack — eliminating hours of manual toil per release.
n8nLangChainSlackWebhooks
RAG evaluation with RAGAS
Faithfulness, context precision & answer relevancy scoring for production LLM features — bringing rigor to outputs that don't have a single correct answer.
RAGASEvals
0→1
LLM eval framework
LLM-assisted test generation
Prompt-engineered agents that draft API & UI tests from specs, PRs, and Swagger — reviewed by humans, shipped at engineer-speed.
ClaudeOllamaPlaywright
70% less defect leakage
Designed RFO (Reason For Outage) processes pairing AI summarization with structured retros — repeat defects cratered across payout systems.
−70%
Repeat defect leakage
Open-source AI agent for accessibility testing
Built an AI agent that audits web pages for accessibility gaps and helps teams fix them before release — open-sourced through the GDG Bangalore open-source-agents repo.
Open SourceAI AgentsAccessibility
Top 10
Google DevFest 2026 project submissions · GDG
My AI toolkit:
LangChainRAGASn8nOllamaClaude AIOpenAI EvalsVector DBsPrompt Eng.
Experience
A decade of building quality
Booking.com
Staff Test Engineer I
Jul 2023 – PresentBengaluru, India- Own quality for FinTech disbursement systems: Scheduled Payouts + VCC for 500K+ property partners globally.
- Architected API automation using OkHttp across distributed payout microservices.
- Built agentic AI automations (n8n + LangChain) eliminating manual QA toil — regression triage, test triggers, Slack pipelines.
- Designed RFO processes reducing repeat defect leakage by 70%.
Web3Auth (acquired by Consensys / MetaMask)
Lead SDET
2022 – 2023Remote / Singapore- Owned quality for WaaS, MPC Auth, NFT integrations, Solana, MetaMask SDK.
- Cut bug leakage by 25% via E2E Playwright automation.
- Built RestAssured + PactumJS API coverage across complex Web3 stacks.
Gojek (GoTo Group)
Lead QA Automation
2020 – 2022Bengaluru, India- Drove QA strategy for digital wallets, UPI, cards, net banking, refunds & APMs.
- Appium + Selenium across Android/iOS — 30% coverage uplift, cross-device via BrowserStack.
- JMeter perf + ZAP Proxy security on payment services; GitLab CI/CD — 20% faster releases.
Chargebee Technologies
Principal QA Engineer
2018 – 2020Chennai, India- Owned QA for tokenization, billing, invoicing, taxation & PIYOC FX flows.
- Jenkins + GitHub Actions CI/CD — 35% faster builds; Terraform/AWS infra automation.
- Mentored & upskilled junior QA engineers into automation ownership.
UnitedHealth Group
QA Engineer — Healthcare Integrations
2016 – 2018Chennai, India- Owned QA for OKTA-based identity & SLO-driven healthcare platforms.
- RestAssured API automation — 20% defect reduction; JMeter perf — 15% faster responses.
- TestRail-driven traceability for comprehensive coverage reporting.
ADP Solutions
Associate Software Test Engineer — Payroll & HCM
2014 – 2016Chennai, India- E2E QA for iHCM Enterprise: payroll, employee lifecycle, recruitment modules.
- Selenium (Ruby) + Cucumber BDD — 30% manual effort reduction.
Tech Stack
Tools I reach for
Programming Languages
JavaJavaScriptPython
Web & Mobile Frontend Automation
SeleniumAppiumCypressPlaywrightXCUITestEspresso
API Automation
RestAssuredPactumJSPact
Testing Approaches & Frameworks
TestNG (TDD)Cucumber (BDD)GherkinFlutter
CI/CD & Version Control
JenkinsGitHub ActionsGitLab
Performance Testing
JMeterLocustK6
Security Testing
ZAP ProxyASTRA
Test Management
JIRAXRayTestRailZephyrConfluence
Databases
SQLMongoDB
Infrastructure as Code
DockerAWSTerraform
Observability & Production Verification
DatadogNew RelicSplunkClevertapGrafanaKibanaArize Phoenix
AI / LLM Tooling
Claude & Claude SkillsNotebookLMOllamaGitHub CopilotWindsurfGleanLangChainRAGASn8nCursor
Other Tools & Concepts
Charles ProxyPostmanBitriseDrupalSelenium Grid
Recognition
Certifications & awards
GitLab Certified Associate
Certification
YugabyteDB Certified Associate
Certification
Pynt Early Adopter
Certification
Agentic AI: Build Your First Agentic AI System
Certification · LinkedIn Learning · Oct 2026
Stellar Award
Award
Role Model of the Year
Award
Top 10 Project — Google DevFest 2026
Award · Google Developer Groups (GDG)
Industry Domains
FinTech PaymentsBlockchain/Web3OTA/TravelSuperAppsDigital WalletsSaaSEdTechHealthcarePayroll/HCMCrypto/NFT
Education
Academic foundations
MBA — Systems Management
University of Madras
2016 – 2018
B.E. — Electrical & Electronics Engineering
Anna University
2009 – 2013
Contact
Let’s build something reliable together.
Open to Senior SDET, QA Lead, QA Manager, and Staff Engineer roles in India (Bengaluru), Singapore, Netherlands, and UAE.