# Siddik Mulla — Backend Engineer & Systems Thinker
# https://siddik.tech

> Siddik Mulla is a backend engineer with 2+ years of experience building production-grade
> Fintech and SaaS platforms. He specializes in distributed systems, payment infrastructure,
> REST API design, and AI-integrated backends. Open to remote engineering roles in the US and EU.

## About
- Full name: Siddik Mulla
- Role: Backend Engineer / Full Stack Developer
- Current employer: Paygasus (United States, Remote) — Nov 2024–Present
- Location: Kolhapur, Maharashtra, India
- Email: sidmm747@gmail.com
- Phone: +91 9503188010
- Website: https://siddik.tech

## Experience
- Paygasus · Software Engineer · Nov 2024–Present · Remote, US
  - Built multi-tenant Fintech onboarding platform: Fastify, Next.js, Google Cloud Spanner
  - Integrated Zoho CRM and payment gateways with event-based triggers across 5-country distributed team
  - Wrote backend test suites with Supertest and Vitest; Dockerized services; automated CI/CD with GitHub Actions
  - Reduced merchant onboarding time by ~35%, deployment time by 50%; maintained 80%+ test coverage

- Comtranse Technology · Full Stack Developer · Jun 2024–Nov 2024 · Kolhapur, India
  - Developed 3+ React web apps with REST APIs and Material UI; improved UI response times by 30%
  - Built React Native apps using Expo Router; managed Linux server deployments (99.5% uptime)

- Freelance · Web Developer · Feb 2024–Jul 2024
  - Built and shipped production web applications independently across client requirements and deployment

## Technical Skills
- Backend & Infra: Python, Node.js, Express.js, Fastify, Django, GoLang, REST APIs, Event-Driven Architecture, GCP, Docker, CI/CD
- Frontend: Next.js, React.js, Vue/Nuxt, React Native, TypeScript, Tailwind CSS
- Databases: PostgreSQL, MySQL, MongoDB, Google Cloud Spanner
- AI / LLM: LangChain, Pinecone, RAG Pipelines, Vector Embeddings
- Tools: GitHub Actions, Jira, Postman, Zoho CRM

## Key Projects
- Paygasus Fintech Platform — Fastify, Next.js, Google Spanner, Docker, Vitest, Supertest, CRM, Payment Gateways
  Multi-tenant fintech platform with RBAC, CRM integrations, and payment gateway support

- XDeepFM Recommendation Engine — Python, Deep Learning
  22% accuracy gain in e-commerce recommendations. Published in IJTE, Aug 2024

- DocuChat (AI Document Analysis) — LangChain, Pinecone, Next.js
  Semantic PDF chat with RAG architecture; 60% faster document queries vs manual search

- SpiceMart (Billing App) — React Native, Expo, REST APIs
  Billing app with barcode scanning and invoice generation for SMB transactions

## Education
- B.Tech, Computer Science & Engineering
  Shivaji University, Kolhapur | Dec 2020 – Jun 2024 | CGPA: 8.4/10

## Publication
- "Enhanced Contextual Recommendation in E-commerce with XDeepFM"
  International Journal of Technology and Engineering (IJTE) | Aug 2024 | ISSN 0971-3034

## Links
- Website: https://siddik.tech
- GitHub: https://github.com/SiddikMulla
- LinkedIn: https://www.linkedin.com/in/siddik-m/
- Medium: https://medium.com/@sidmm747
- Peerlist: https://peerlist.io/siddik_m/