Arbaaz Laskar
Senior Software Developer
arbaazlaskar.work@gmail.com | Portfolio | LinkedIn | GitHub
Professional Summary

Full-stack software engineer with a track record of architecting and scaling high-performance systems, from multi-tenant SaaS platforms to real-time IoT data pipelines.

I specialize in leading engineering teams and building systems that handle massive scale and business-critical operations. My recent work includes processing over 14 million daily IoT telemetry events, architecting custom billing engines handling $1M+ in monthly volume, and optimizing complex database architectures in PostgreSQL.

My approach is driven by architectural pragmatism, strong domain modeling, and operational reliability. I build primarily with modern Node.js frameworks (NestJS, Fastify, Hono) and React (TanStack Query), backed by robust AWS infrastructure, CI/CD, and strict infrastructure-as-code practices.

Experience
DaaS - Developers As A Service
Senior Software Developer
Jul 2025 - Present
10 mos
  • Architected and delivered multi-tenant SaaS platforms (Enrollio.ai, Impulsion.io) from the ground up, supporting 100+ active enterprise clients generating $100k-$200k in monthly revenue per customer
  • Engineered a custom, fully automated payment infrastructure from scratch using Stripe payment intents, implementing a complex rules engine for multi-student, sibling, and parent discount workflows
  • Developed highly scalable backend systems (NestJS, Fastify, Hono) and high-performance React frontends to eliminate manual billing and streamline enrollments and scheduling
Pointo
SDE 2
Jun 2024 - Jul 2025
1 yr 1 mo
  • Grew and led a 5-person engineering team, driving the development of full-stack operational solutions (Next.js, Nest.js) that optimized org-wide KYC onboarding, collections, and inventory management
  • Built a highly scalable IoT data platform managing a fleet of 5,000+ lithium-ion batteries, processing over 14 million daily heartbeat messages via RabbitMQ
  • Architected the database layer in PostgreSQL to handle massive data ingestion and optimized complex search queries for real-time battery monitoring
  • Managed comprehensive AWS infrastructure (EC2, RDS, S3) and established CI/CD pipelines to ensure deployment reliability
BoldTek & HP
Software Developer
Mar 2022 - Apr 2024
2 yrs 1 mo
  • Developed core C#/C++ business logic and UI for HP Factory Diagnostics Software, serving as the primary quality assurance gatekeeper across all global manufacturing plants to approve products for release
  • Contributed to a unified, real-time diagnostic solution distributed to over 100 million HP customers worldwide, streamlining manufacturing and consumer diagnostic workflows
  • Modernized legacy HP UEFI scripts by migrating them to a multi-threaded, object-oriented Python architecture, drastically improving execution efficiency and scalability
  • Engineered a real-time data visualization dashboard using ReactJS and Django, enabling faster identification of hardware faults
Skills
Languages
Python, JavaScript, TypeScript, Go, C++, Rust, Java
Frameworks
Django, Flask, FastAPI, ReactJS, NodeJS, Express, NestJS, Fastify, Hono, Next.js, TanStack Query
Databases
PostgreSQL, MySQL, MongoDB, SQLite
AI & ML
LangGraph, FAISS, Ollama
Tools & Cloud
RabbitMQ, AWS, GCP
Open-Source Projects
Python, FastAPI, LangGraph, Next.js, Ollama, FAISS
  • A local-first, multi-agent AI system for adversarial due diligence on startup pitch decks. Dispatches specialized agents to extract zero-trust claims, find contradicting evidence, detect suspicious absence of proof, and propagate credibility scores through a Bayesian engine.
Next.js, React, TypeScript, Tailwind CSS
  • A real-time global intelligence dashboard aggregating and visualizing disparate data streams for geopolitical, financial, and technological insights.
F1 Race Delta — github.com/arzkar/F1RaceDelta
Python, FastAPI, React, TypeScript
  • A web application providing advanced Formula 1 race strategy analysis, delta timing simulations, and data visualizations utilizing a custom Monte Carlo engine.
Python, Go
  • A CLI to sync between android & local system using adb. Simplifies file synchronization for Android developers and automation workflows.
Python, JavaScript
  • A library to fetch data from ArchiveOfOurOwn.org. Solves real-world problems in the fanfiction community with a clean, maintainable API.