Distributed Systems & High-Throughput Engineering

Biplab Mal

Backend & Distributed Systems Engineer

Specializing in high-throughput microservices, real-time collaboration engines, and offline-first mobile systems. Proven track record of turning complex business bottlenecks into resilient code: scaled healthcare prescription pipelines for 25k+ MAU at ScriptAssist and architected Nerd’sHive, a real-time developer hackathon platform serving live WebRTC audio/video and algorithmic teammate matching.

25,000+

MAU Scaled at ScriptAssist

99.9%

Uptime via TCP & Redis Bus

< 50ms

WebRTC & Socket.IO Latency

85%

Server RAM Slashed via S3

Explore Featured Systems Download Resume Contact Me

Direct Verified Links:

biplab@systems: ~/architecture

STABLE

// Biplab Mal — Engineering Profile & Architecture Matrix
const engineer = {
  name: "Biplab Mal",
  role: "Backend & Distributed Systems Engineer",
  location: "Bengaluru, Karnataka, India",
  coreStack: ["TypeScript", "Node.js", "NestJS", "Redis", "PostgreSQL"],
  systemsInProduction: {
    scriptAssist: {
      users: 25000 /* MAU pharmacy pipeline */,
      architecture: "NestJS Microservices + TCP + Redis",
      uptime: "99.9%",
      manualFulfillmentDrop: "-40%"
    },
    lawSikho: {
      stack: "Next.js + Supabase + PostgreSQL",
      focus: "Serverless API Routes & RLS Policies",
      period: "June 2025 - July 2025"
    },
    nerdsHive: {
      protocol: "WebRTC Mesh + Socket.IO + Redis Streams",
      latency: "< 50ms",
      ramOptimization: "85% saved via S3 pre-signed URLs"
    },
    zenLauncher: {
      dataStore: "WatermelonDB + SQLite",
      renderBudget: "< 16ms (60 FPS, offline-first)"
    }
  }
};

About Me

Turning High-Concurrency Bottlenecks Into Resilient Systems

A focused backend engineer with production experience in microservices, event-driven pipelines, real-time protocols, and offline-first mobile databases.

I am a Backend & Distributed Systems Engineer dedicated to building fault-tolerant, high-throughput software architectures that thrive under heavy workloads.

My engineering focus centers on decoupling monolithic bottlenecks into lean, maintainable microservices and creating real-time collaborative applications. During my time at ScriptAssist in the United Kingdom, I decomposed a mission-critical healthcare pharmacy platform serving 25,000+ monthly active users into modular NestJS services, architecting inter-service TCP transport and Redis pub/sub streams to guarantee 99.9% system uptime.

I thrive at the intersection of systems architecture, data isolation, and network performance. Whether that means slashing server memory footprint by 85% through direct AWS S3 pre-signed upload URLs in Nerd’sHive, orchestrating real-time WebRTC mesh audio/video rooms under 50ms latency, or engineering an offline-first launcher engine with WatermelonDB rendering within strict 16ms frame budgets (60 FPS), I prioritize clean architecture, strict data compliance, and measured outcomes.

Microservices & Event-Driven Architecture

Decoupled authentication, queues, and fulfillment via TCP transport and Redis to eliminate single points of failure.

Low-Latency Real-Time Collaboration

WebRTC mesh channels, Socket.IO adapters, and Redis Streams enabling instantaneous pair-programming and voice communication.

Security, RBAC & Compliance

Clinical-grade data isolation between doctors, patients, and pharmacies with 180-day retention policies, OAuth 2.0, and JWT.

Work History

Professional Experience

Real-world production contributions scaling healthcare SaaS pipelines and microservice architectures.

ScriptAssist

United Kingdom (Remote)

Backend Engineering Intern

July 2025 – December 2025

Focus: High-concurrency healthcare SaaS & logistics pipelines

25,000+ Monthly Active Users Supported

99.9% System Uptime Maintained

-40% Manual Dispatch Handling Time

RBAC Clinical Records Data Isolation

Key Engineering Contributions & System Deliverables:

Monolith Migration

Decomposed a monolithic pharmacy platform serving 25,000+ MAU into modular NestJS microservices, decoupling user authentication, prescription processing, and courier dispatch into isolated deployable units.
Event-Driven Resilience

Built inter-service event communication via TCP transport and Redis, eliminating cascading service failures and maintaining 99.9% system uptime across high-concurrency peak hours.
Logistics Automation

Integrated Royal Mail and DPD carrier REST APIs into automated background fulfillment queues, slashing manual dispatch handling time by 40% and expediting prescription transit tracking.
Security & Compliance

Enforced role-based access control (RBAC) on clinical records and payment flows, ensuring strict regulatory data isolation between patients, doctors, and pharmacies in accordance with healthcare compliance guidelines.

ScriptAssist Decomposed Microservices Flow TCP Transport & Redis Event-Bus

Prescription Traffic 25,000+ MAU

                        NestJS Microservices
                        Auth • Rx • Dispatch
                      

TCP & Redis Bus Zero-Cascade Events

                        Royal Mail & DPD
                        -40% Handling Time
                      

LawSikho

India (Remote)

Backend Engineering Intern

June 2025 – July 2025

Focus: Serverless backend APIs, database access control & assignment workflows

Next.js Server-Side Route Handlers

Supabase Managed Auth & Webhooks

PostgreSQL Relational Schema & Indexes

RLS Row-Level Security Policies

Key Engineering Contributions & System Deliverables:

Serverless API Development

Built and maintained server-side API routes using Next.js App Router and TypeScript to process student assignment submissions, course material lookups, and evaluation status updates.
Data Access & Row-Level Security

Designed relational schemas in PostgreSQL via Supabase and implemented granular Row-Level Security (RLS) policies, ensuring strict isolation between learner submissions and instructor grading views.
Automated Webhooks & Event Sync

Integrated Supabase Database Triggers and webhook endpoints to synchronize submission events, triggering automated grading notifications and student status updates without blocking primary request cycles.
Query Optimization

Refined SQL queries and composite indexes across frequently accessed assignment tracking tables, minimizing query response overhead for learner dashboard queries.

LawSikho Serverless & Data Security Pipeline Next.js Route Handlers + Supabase RLS

Client Requests Learner Portal

                        Next.js API Routes
                        Auth & Validation
                      

                        Supabase & RLS
                        Access Isolation
                      

PostgreSQL Store Triggers & Webhooks

Featured Engineering

Production Projects & Systems Architecture

Deep dive into real-world distributed platforms architected for low latency, heavy traffic, and seamless offline data stores.

Production Project Live in Production

Nerd’sHive — Real-Time Developer Network & Hackathon OS

Unified arena combining talent scouting, persistent team voice, and project submission for global hackathons.

Visit Live: nerdshive.online

The Problem Solved

Developers face high friction assembling hackathon squads across fragmented tools (Discord, Devpost, Zoom). Built a unified real-time arena combining talent scouting, persistent team voice, and project submission into one cohesive workspace.

Algorithmic Matchmaking (Radar)

Engineered a skill-complementarity matching engine that pairs free agents with squads based on tech stack gaps, automating seat offers with countdown SLA timers to maximize squad formation speed.

Skill Gap Matching Automated seat offers with countdown SLA timers

Real-Time Voice & Arenas

Implemented low-latency text channels and WebRTC mesh video/audio rooms using Socket.IO with Redis adapters, enabling < 50ms latency for remote pair-programming and squad vetting.

< 50ms Latency WebRTC mesh & Socket.IO Redis adapters

High-Velocity Performance

Slashed server RAM consumption by 85% via direct AWS S3 pre-signed upload URLs, cached global assets via Cloudflare Edge Rules, and indexed high-traffic tournament leaderboards with MongoDB compound indexes.

85% RAM Slashed Direct S3 pre-signed uploads & Edge caching

High-Throughput Distributed Architecture Next.js 14 • Node.js • Redis Streams • WebRTC • MongoDB • AWS S3 • Cloudflare

Client Layer

Next.js 14 App Router

React Server Components, real-time audio/video mesh canvas & live leaderboard feeds.

Real-Time Core

Socket.IO & Redis Streams

< 50ms WebRTC mesh signaling, pub/sub presence adapters & algorithmic matchmaking radar.

Persistence & Storage

MongoDB & AWS S3

Compound indexing for leaderboard queries; 85% RAM saved via pre-signed direct S3 uploads.

Edge CDN

Cloudflare Rules

Global static asset caching, DDoS mitigation, and edge header routing.

Complete Stack:

Next.js 14 Node.js TypeScript Redis Streams WebRTC Socket.IO MongoDB Compound Indexing AWS S3 Pre-signed URLs Cloudflare Edge Rules

Systems & Mobile Open-Source Engine

Zen — Android Distraction-Free Home Launcher & Focus Engine

Intentional home screen replacement physically deterring compulsive app-switching through native interventions and offline-first reactive data.

GitHub: github.com/bips241/zen

The Problem Solved

Standard smartphone home screens are engineered for doom-scrolling. Engineered a full Android home screen replacement that physically deters compulsive app-switching via intentional friction barriers.

Native Interventions & UsageStats Bridge

Hooked into Android’s UsageStats API via custom native bridge to monitor active application foreground cycles, automatically injecting a 5-second breathing barrier and hard-blocking distracting apps during scheduled sprints.

5s Breathing Barrier Android UsageStats foreground hook & hard-blocking

Offline-First Architecture & WatermelonDB

Designed a reactive local data store with WatermelonDB and SQLite, ensuring instant < 16ms (60 FPS) launcher rendering with zero network latency and complete on-device privacy.

< 16ms (60 FPS) Reactive SQLite local data store & 0 network latency

Complete Stack:

React Native Expo TypeScript Android Native Bridge UsageStats API WatermelonDB SQLite Offline-First

Technical Competencies

Technical Skills

Categorized directly from resume specifications across languages, backend architectures, data stores, and cloud infrastructure.

Core Languages

5 technologies

TypeScript
JavaScript
Python
C++
SQL

Backend Systems

10 technologies

Databases & Caching

6 technologies

PostgreSQL
MongoDB (Compound Indexing, Lean Queries)
Redis
Supabase
WatermelonDB
SQLite

Cloud, DevOps & Edge

4 technologies

AWS (S3 Pre-signed Uploads)
Cloudflare (Edge Caching & Rules)
Docker
GitHub Actions CI/CD

Frontend & Mobile

5 technologies

React.js
Next.js 14 (App Router)
React Native
Expo
Tailwind CSS

Architecture & Compliance

6 competencies

Academic Background

Education & Credentials

Formal degree and academic performance records preserved from resume.

Undergraduate Degree

June 2025

B.Tech in Information Technology

JIS College of Engineering

Graduation Result: CGPA: 7.88

Comprehensive training in Algorithms, Distributed Systems, Computer Networks, Database Management Systems, and Object-Oriented Software Design.

Higher Secondary

2021

Higher Secondary (Science)

West Bengal Council of Higher Secondary Education (WBCHSE)

Board Result: 75.4%

Physics, Chemistry, Mathematics & Computer Science stream with rigorous mathematical analysis fundamentals.

Secondary Board

2019

Secondary Examination (Madhyamik)

West Bengal Board of Secondary Education (WBBSE)

Board Result: 80.0%

Foundational curriculum in Physical Sciences, Life Sciences, Mathematics, and Languages.

Let's Connect

Get in Touch

I am actively open to discussing Backend Engineering, Distributed Systems, and Microservices opportunities.

Let's discuss engineering challenges

Whether you have an opening for a backend role, want to explore microservices migration strategies, or would like to review my live work on Nerd’sHive or Zen, my inbox is always open.

Email Address biplabmal626@gmail.com

Phone & WhatsApp +91-6294826393

Location Bengaluru, Karnataka, India

Compose Email with Prefilled Subject

Professional Profiles

All verified links present in resume:

LinkedIn Profile linkedin.com/in/biplab626

GitHub Profile github.com/bips241

Production App Live nerdshive.online