Paygasus Fintech Platform
Built a Dockerized multi-tenant fintech platform with Fastify, Next.js, RBAC, CRM integrations, and payment gateway support.
FastifyNext.jsGoogle SpannerDockerVitestSupertestCRMPayment Gateways
Work
Experience
2+ yearsSoftware Engineer
Paygasus · United States · Remote
- Built multi-tenant Fintech onboarding platform using Fastify, Next.js, and Google Cloud Spanner — cutting merchant onboarding time by ~35% via workflow automation and role-based access control.
- Integrated Zoho CRM and payment gateways with event-based triggers across a 5-country distributed team — improving data accuracy by 40% with zero downtime during rollout.
- Wrote backend test suites using Supertest and Vitest; Dockerized services and automated CI/CD with GitHub Actions, reducing deployment time by 50% and maintaining 80%+ test coverage.
- Owned features end-to-end across backend, frontend, and infrastructure — communicating progress via async documentation and Jira, consistently shipping on schedule.
Full Stack Developer
Comtranse Technology · Kolhapur, India
- Developed 3+ React web apps with REST APIs and Material UI, improving UI response times by 30% through performance optimization.
- Built React Native apps using Expo Router; managed Linux server deployments on cPanel ensuring 99.5% uptime.
Web Developer
Freelance
- Built and shipped production web applications independently — handled client requirements, architecture, and deployment solo.
Tools & Tech
Skills
Backend & Infra
PythonNode.jsExpress.jsFastifyFastAPIREST APIsEvent-Driven ArchitectureGCPDockerCI/CDGoLang
Frontend
Vue / NuxtNext.jsReact.jsReact Native (Expo)TypeScriptTailwind CSS
Databases
PostgreSQLMySQLMongoDBGoogle Cloud Spanner
AI / LLM
LangGraphLlamaIndexPineconeOllamavLLMPyTorchMCPClaude
Tools
GitHub ActionsJiraPostmanZoho CRM
Selected work
Projects
XDeepFM Recommendation Engine
22% accuracy gain in e-commerce recommendations using XDeepFM with temporal dynamics modeling. Published IJTE 2024.
PythonDeep Learning
DocuChat — AI Document Analysis
Semantic PDF chat with RAG architecture; 60% faster document queries vs manual search.
LangChainPineconeNext.js
SpiceMart — Billing App
Billing app with barcode scanning and invoice generation, streamlining SMB transactions.
React NativeExpoREST APIs
Academic
Education
B.Tech — Computer Science & Engineering
Shivaji University, Kolhapur
Dec 2020 – Jun 2024
CGPA: 8.4 / 10
Research
Publication
Enhanced Contextual Recommendation in E-commerce with XDeepFM
IJTE · Aug 2024
ISSN 0971-3034
22% accuracy gain using XDeepFM with temporal dynamics modeling in e-commerce recommendation systems.