Sushil Parajuli

Sushil Parajuli

Senior Full Stack Engineer

Generative AI • Distributed Systems

sushilparajuli2010@gmail.com+971-54388-5308

👋 I'm Sushil Parajuli

Senior Full Stack Engineer

Generative AI • Distributed Systems

dedicated to craft

Robust 

Web & Distributed AI Systems

Frontend Tech Stack

  • React.js
  • Next.js
  • TypeScript
  • JavaScript (ES6+)
  • HTML5
  • CSS3
  • Tailwind CSS
  • Vue.js
  • Nuxt.js
  • Redux Toolkit
  • Zustand
  • TanStack Query
  • i18n (Arabic/English)
  • RTL
  • Gsap
  • Three.js

Backend – Node.js

  • Node.js
  • NestJS
  • Fastify
  • Express
  • Zod
  • Prisma
  • TypeORM
  • Socket.io
  • BullMQ

Backend – Golang

  • Golang
  • Gin
  • Echo
  • Fiber
  • GORM
  • sqlx
  • gRPC
  • Protobuf
  • Sarama/kafka-go

Quality, Security & Architecture

  • Agile/Scrum
  • TDD
  • Jest
  • React Testing Library
  • Cypress
  • Playwright
  • Pytest
  • WCAG 2.1 AA
  • Core Web Vitals
  • OAuth2 / OIDC
  • RBAC
  • CSP / HSTS
  • Storybook
  • Figma

Data Structure and Algorithms

  • Arrays & Strings
  • Hash Tables/Maps
  • Stack/Queue
  • Graphs
  • Heaps
  • Dynamic Programming
  • Recursion
  • Trees (DOM/Virtual DOM)
  • Tries
  • Caching Strategies (LRU/MRU)

AI & LLM Engineering

  • Claude API (Anthropic)
  • Model Context Protocol (MCP)
  • GraphRAG
  • Multi-Agent Orchestration
  • Prompt Engineering
  • Structured Outputs
  • Autonomous Dev Tools
  • Cursor IDE
  • GitHub Copilot
  • ChatGPT

Data Visualization & Real-Time

  • TradingView Lightweight Charts
  • ECharts
  • Ag-Grid
  • ReactFlow
  • Monaco Editor
  • Recharts
  • TanStack Table
  • WebSockets
  • Server-Sent Events (SSE)
  • Virtualization

Backend – Python

  • Python
  • FastAPI
  • Pydantic v2
  • SQLAlchemy
  • SQLModel
  • Alembic
  • Celery
  • Redis
  • Pandas
  • Pytest

Distributed Systems & Cloud

  • Apache Kafka
  • PostgreSQL
  • MongoDB
  • Redis
  • Elasticsearch
  • GraphQL
  • Docker
  • Kubernetes (K8s)
  • AWS
  • Azure
  • GCP
  • GitHub Actions
  • Jenkins
  • GitLab CI

Mobile & Web3

  • React Native (Expo / Hermes)
  • Flutter (Webview)
  • Ethers.js
  • Wagmi
  • Notabene Web3 SDK
  • Solidity
  • Web3.js
  • Alchemy

Intro

A concise view of the core capabilities I bring to modern product engineering—balancing velocity, quality, accessibility, performance, and long‑term maintainability.

Results-driven Senior Full Stack Engineer with 10+ years architecting high-scale, resilient platforms across FinTech, Crypto, and E-commerce. Expert in distributed systems, real-time data visualization, and event-driven microservices. Demonstrated ability to reduce page load times by 30%, increase user engagement by 15%, and maintain 99.9% uptime during peak traffic.

🤖 AI Engineering & Autonomous Agent Architecture:

Focused on production LLM systems, intelligent agent architecture, and autonomous development tools. Expert in Claude API, prompt engineering, multi-agent orchestration, and GraphRAG platforms. Specializes in secure AI infrastructure via Model Context Protocol (MCP), structured prompting techniques, and hallucination prevention with responsible, human-centered AI integration.

End-to-End Engineering Strengths: Node.js, Next.js, TypeScript, Python (FastAPI), Golang, and Apache Kafka with real-time data visualization (TradingView, ECharts, AgGrid, WebSockets, SSE). Proven track record establishing reusable component libraries via Storybook, optimizing Core Web Vitals (LCP, CLS) through SSR/ISR, enforcing WCAG 2.1 AA accessibility, and hardening applications with OAuth2/OIDC, RBAC, and CSP/HSTS.

Skills & Expertise

A concise view of the core capabilities I bring to modern product engineering—balancing velocity, quality, accessibility, performance, and long‑term maintainability.

AI Engineering & Agent Architecture icon

AI Engineering & Agent Architecture

Production LLM systems, intelligent agents & MCP infrastructure.

  • Claude API, prompt engineering & structured outputs
  • Model Context Protocol (MCP) & GraphRAG platforms
  • Autonomous agent orchestration & hallucination prevention
Real-Time Data Visualization icon

Real-Time Data Visualization

High-frequency streaming charts, orderbooks & analytics.

  • TradingView, ECharts, AgGrid & Recharts integration
  • WebSockets & SSE for sub-second live data feeds
  • DOM/table virtualization for high-throughput trading data
Distributed Systems & Event Streams icon

Distributed Systems & Event Streams

Resilient microservices, high throughput & event streaming.

  • Apache Kafka event streaming with message ordering
  • High-concurrency services with FastAPI, Golang & Node.js
  • gRPC, Protobuf & RESTful contract-first design
High‑Impact Web UI Engineering icon

High‑Impact Web UI Engineering

Building performant, elegant interfaces with React + Next.js.

  • TypeScript-first, strongly typed patterns
  • Modular, accessible component composition
  • Progressive enhancement & graceful degradation
Responsive & Accessible Layouts icon

Responsive & Accessible Layouts

Pixel‑perfect adaptive design meeting WCAG 2.1 AA.

  • Semantic HTML5, CSS Grid / Flexbox
  • Keyboard & screen reader workflows
  • Bilingual Arabic/English i18n & full RTL support
Design System & Reusability icon

Design System & Reusability

Scalable component libraries & tokens for consistency.

  • Systematized primitives & variants
  • Storybook documentation & visual regression tests
  • Theming + dark mode architecture
Quality & Testing Strategy icon

Quality & Testing Strategy

Defense‑in‑depth automated testing & CI gating.

  • Unit & integration (Jest + RTL + Pytest)
  • E2E coverage (Cypress / Playwright)
  • Pre‑merge performance & a11y checks
Cross‑Functional Collaboration icon

Cross‑Functional Collaboration

Partnering across Product, Design & Backend.

  • Agile/Scrum sprint planning & backlog refinement
  • Structured code reviews with coaching
  • Clear technical documentation
Performance & Web Vitals icon

Performance & Web Vitals

Relentless focus on fast, smooth experiences.

  • SSR/ISR & granular code‑splitting
  • Lighthouse/Core Web Vitals tracking (LCP, CLS)
  • Runtime budgets & bundle analysis (30% load reduction)
Observability & Reliability icon

Observability & Reliability

Proactive monitoring & rapid incident response.

  • Instrumentation (Sentry / Datadog)
  • Real user metrics dashboards & alert routing
  • Targeting 99.9% uptime during high-traffic peaks
Mentorship & AI Workflows icon

Mentorship & AI Workflows

Developing talent & elevating engineering standards.

  • Mentoring 5+ engineers on clean TypeScript architecture
  • AI-assisted development (GitHub Copilot & Cursor)
  • Growth frameworks & engineering knowledge sharing
Mobile & Web3 Architecture icon

Mobile & Web3 Architecture

Cross-platform mobile apps & secure Web3 wallet flows.

  • React Native Expo with Hermes engine for native speed
  • Notabene Web3 SDK integration for travel rules & wallets
  • Ethers.js / Wagmi transaction UX & failure resilience
Scalable Architecture icon

Scalable Architecture

Patterns enabling evolution & low friction change.

  • Domain & feature isolation
  • Incremental migration strategies
  • Config‑driven extensibility
Continuous Delivery & Tooling icon

Continuous Delivery & Tooling

Frictionless pipelines & automated governance.

  • CI gates (GitHub Actions, Jenkins, GitLab CI)
  • Docker containerization & Kubernetes (K8s) readiness
  • Preview environments & feature flags
Developer Experience Optimization icon

Developer Experience Optimization

Improving speed, clarity & reliability for devs.

  • Local env parity & fast feedback
  • Scriptable scaffolds & generators
  • Type‑safe APIs & shared utilities
Security & Frontend Hardening icon

Security & Frontend Hardening

Proactive client security: auth integrity, headers, OWASP defenses & supply chain hygiene.

  • OWASP: XSS & CSRF prevention, input validation, output escaping, Trusted Types/DOMPurify
  • Auth integrity: OAuth2/OIDC, httpOnly+SameSite cookies, RBAC, middleware guards, session rotation
  • Defense headers: CSP (nonces), HSTS, frame-ancestors, X-Content-Type-Options, Referrer & Permissions policy
  • Supply chain & secrets: audits (Dependabot/Snyk), SBOM, locked deps, secret leak scanning

Experience Timeline

Progressive roles and measurable impact, with advancing leadership in architectural excellence, accessibility, performance discipline, security posture, and developer enablement.

  1. MULTIBANK — Senior Software Engineer

    Dubai, UAE2025 – Present

    • Engineered frontend for regulated multi-tenant crypto/fintech SaaS platform supporting live trading, staking, and digital banking workflows; leveraged React, Next.js, and TypeScript for 99.8% uptime.
    • Developed real-time data-intensive interfaces using WebSockets, ECharts, TradingView, and Ag-Grid with virtualization for high-frequency trading data; reduced data processing latency by 40%.
    • Spearheaded migration from third-party integrations to proprietary solutions using FastAPI, Golang, and Node.js for trading analytics, order execution, and compliance workflows.
    • Implemented event-driven architecture with Apache Kafka supporting trade, order, wallet, and audit event flows across distributed microservices; ensured message ordering consistency.
    • Established reusable component library via Storybook; enforced WCAG 2.1 AA accessibility; optimized Core Web Vitals (LCP, CLS) through SSR/ISR, improving SEO ranking by 35%.
    • Mentored 5+ engineers on clean architecture principles, TypeScript patterns, and AI-assisted development workflows using GitHub Copilot and Cursor; conducted code reviews in Agile sprint ceremonies.
    • Led app-stack modernization to React Native Expo with Hermes engine, achieving native-grade performance for scalable mobile architecture.

    Tech: React, Next.js, TypeScript, Node.js, FastAPI, Golang, Apache Kafka, WebSockets, TradingView, ECharts, Ag-Grid, Storybook, React Native (Expo/Hermes), GitHub Copilot, Cursor

  2. M2.COM — Senior Software Engineer

    Dubai, UAE2023 – 2025

    • Directed full-stack development of crypto trading platform (React + Next.js + TypeScript + Node.js) with live trading, staking, and multi-chain wallet integration using Notabene Web3 SDK.
    • Integrated complex Spring Boot and Node.js backend services via REST APIs; implemented event tracking for user behavior analytics across Scrum sprints.
    • Constructed high-performance dashboards and visualizations using TradingView, ECharts, and Ag-Grid with real-time data streaming; supported 50,000+ concurrent users.
    • Provisioned distributed content synchronization system connecting back-office CMS platforms to front-office applications using event-driven patterns.
    • Coordinated cross-functional Agile teams to streamline sprint delivery and enable conflict-free deployments; automated OTC desk workflows via Zendesk bot integration.
    • Enhanced application performance, accessibility, and security through SSR optimization, Core Web Vitals improvements, OAuth2/OIDC, and RBAC implementation.
    • Delivered bilingual Arabic/English UX with full RTL, semantic HTML, WCAG 2.1 AA, and Flutter WebView integration.

    Tech: React, Next.js, TypeScript, Node.js, Spring Boot, WebSockets, TradingView, ECharts, Ag-Grid, Notabene Web3 SDK, OAuth2/OIDC, RBAC, Sentry, Datadog, Flutter Webview

  3. JUMIA GROUP — Full Stack Developer

    Dubai, UAE2018 – 2023

    • Engineered scalable e-commerce modules for Africa's largest marketplace using React and Vue.js; ensured UI consistency via shared enterprise design system within Agile teams.
    • Transitioned CMS data fetching from legacy REST endpoints to GraphQL; reduced mobile data consumption by 50% and improved Largest Contentful Paint (LCP) by 28%.
    • Optimized high-concurrency checkout flows using Golang (Gin); maintained 99.9% uptime during extreme traffic spikes (Black Friday sales); handled 100,000+ TPS.
    • Developed automated catalog pipelines with FastAPI and Celery; managed real-time pricing and promotions for millions of SKUs.
    • Synchronized order fulfillment across warehouse microservices using Apache Kafka; ensured real-time inventory and payment status accuracy.
    • Modernized legacy jQuery monoliths to Nuxt.js/React SSR stack; reduced page load times by 30%, increasing conversion rates by 15%.
    • Delivered regional i18n multi-lingual support with locale formatting and mobile-first optimizations across Kanban-managed sprints.

    Tech: React, Vue.js, Golang (Gin), Python (FastAPI/Celery), GraphQL, Apache Kafka, Nuxt.js, Node.js, Webpack/Vite, i18n/RTL, Jest, RTL, Cypress

  4. GROWBYDATA — Front‑End UI/UX Developer

    Kathmandu, Nepal2015 – 2016

    • Prototyped semantic and responsive UIs (HTML5, CSS3 Flexbox, jQuery, React, AngularJS); delivered design wireframes and mockups.
    • Developed UI components across multiple squads using AngularJS and React.
    • Researched front-end performance and accessibility foundations, informing future design-system architecture.
    • Partnered with backend squads (PHP/.NET) on early RESTful integration patterns and API contract definition.

    Tech: HTML5, CSS3, jQuery, AngularJS, React, PHP, .NET, Git, Agile, Accessibility & Performance

  5. I-TECH NEPAL — Sr. Web Developer

    Kathmandu, Nepal2013 – 2015

    • Delivered mobile-first responsive web applications using PHP, jQuery, and HTML5/CSS3; reduced project turnaround time by 20% via reusable component libraries.
    • Developed and customized WordPress themes and templates to meet branding and functional requirements.
    • Produced graphics and brand assets (logos, banners, print/digital) to support marketing and product launches.
    • Planned projects and conducted research to inform IA, component choices, and UX flows.
    • Iterated quickly on client feedback to improve usability, visual polish, and content clarity.

    Tech: PHP, jQuery, HTML5, CSS3, WordPress, Adobe Creative Suite, UI/UX Wireframing