Available for projects

Niloy Biswas

I'm a Data Analyst

Niloy Biswas — BI Analyst and AI/LLM Engineer

About Me

I turn messy data into systems that move revenue and inform decisions. Over 4+ years across EdTech and SaaS, I've built everything from BigQuery ETL pipelines and Looker Studio dashboards to production RAG agents using LangGraph and hybrid vector search.production At 10 Minute School, I contributed to a $5.5M pre-Series A and helped architect USAID's education data infrastructure across Bangladesh. Outside work, I research - my ML paper is published in Hindawi's BioMed Research International.indexed

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Turning raw data into decisions — and building the AI systems that make it scale.
— Niloy
4+ Years in Data
100+ Dashboards Built
10M+ Leads Managed
Queries Run

How I can help

Available for freelance & consulting projects

AI Agent Development

I build multi-model AI agents using RAG pipelines, LangGraph, and hybrid vector search — ready to plug into your product and scale with your users.

Analytics & Data Strategy

I model your lead funnel, score prospects, and run A/B tests—then architect the stack behind them: ETL pipelines, BigQuery warehouses, and executive dashboards built for where your business is headed.

Data Engineering

I design and optimise data pipelines and build dashboards across Looker Studio, Tableau, and Metabase that streamline decisions across product and operations.

Tools of the Trade

The data stack behind every insight.

A rolling inventory of tools, languages, and systems I reach for every day — paused on hover.

01

Languages

PythonCore Advanced SQLCore GitProficient Google Apps ScriptProficient PythonCore Advanced SQLCore GitProficient Google Apps ScriptProficient
02

Database & Storage

BigQueryCore PostgreSQLProficient MongoDBProficient PineconeProficient QdrantProficient GCPCore AirbyteCore Custom ETLCore BigQueryCore PostgreSQLProficient MongoDBProficient PineconeProficient QdrantProficient GCPCore AirbyteCore Custom ETLCore
03

AI & LLM Orchestration

LangChainCore LangGraphCore n8nCore DifyProficient OpenAIProficient GeminiProficient HuggingFaceProficient RAGCore Hybrid Vector SearchProficient LangChainCore LangGraphCore n8nCore DifyProficient OpenAIProficient GeminiProficient HuggingFaceProficient RAGCore Hybrid Vector SearchProficient
04

ML & Deep Learning

Scikit-LearnCore Computer VisionProficient Transfer LearningProficient RegressionProficient ClusteringProficient Statistical AnalysisCore Scikit-LearnCore Computer VisionProficient Transfer LearningProficient RegressionProficient ClusteringProficient Statistical AnalysisCore
05

Analytics & BI

Looker StudioCore TableauProficient MetabaseCore PandasProficient MatplotlibProficient SeabornProficient Google Analytics 4Core MixpanelProficient Looker StudioCore TableauProficient MetabaseCore PandasProficient MatplotlibProficient SeabornProficient Google Analytics 4Core MixpanelProficient

Education

DIU Logo

Software Engineering (SWE)

Jan 2017 – June 2021
Daffodil International University (DIU) (Dhaka, Bangladesh)
  • B.Sc. in Software Engineering. CGPA: 3.7/4
  • Main coursework: Data Structures, Design and analysis of Algorithms, Computer Architecture, Artificial Intelligence, Database Systems, Operating Systems, Software Engineering.

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Graduating from Daffodil - Niloy
Graduating from Daffodil - Niloy
Graduating from Daffodil - Software Engineering Dept.
Graduating from Daffodil - Software Engineering Dept.

HSC

Jan 2014 – Dec 2016
Shishukunja School & College (Jhenaidah, Dhaka)
  • Group – science | Board - Jessore.

Experiences

10MS Logo

10 Minute School | Dhaka, Bangladesh

Specialist - Business Intelligence Analyst (Full-time)
Feb 2025 - Current
  • Built multi-model AI agents applying RAG with reranking and hybrid vector search, using LangGraph, n8n, and Dify to operationalize LLMs like ChatGPT, Gemini, and open-source models from Hugging Face.
  • Developed a custom Python-based ETL pipeline to seamlessly extract, transform, and migrate data from MongoDB and PostgreSQL into BigQuery, resolving previous integration limitations encountered with Airbyte.

Sr. Business Intelligence Analyst (Full-time)
Jan 2023 - Jan 2025
  • Managed data structure, strategy, and insights delivery for the USAID-funded Higher Secondary Education Project (HSEP) in collaboration with Chemonics International and Florida State University, facilitating data-driven decisions to enhance education quality and digital integration across 3,000 colleges, covering 99% of colleges in Bangladesh.
  • Played a key role in the successful Pre-Series A funding round, raising $5.5 million, by coordinating comprehensive due diligence with KPMG, one of the Big Four accounting firms. It is the highest seed-stage funding ever secured by a Bangladeshi startup, as of 2023.
  • Led a Lead Scoring project that increased revenue by 75% in 6 months ($340K), driving sales through a combination of RFM and behavior-based scoring.
  • Collaborating with the product development team to create dynamic products that improve subscriber, retention, and product repurchase rates.
  • Awarded "Best Performer" for the July to December 2022 term, recognizing exceptional dedication and contributions to the team at 10MS.

Business Intelligence Analyst (Full-time)
July 2022 - Dec 2022
  • Conducted process automation and query optimization using GCP, reducing data processing times by 40% and lowering costs by 70%.
  • Analyzed and identified reasons for failed transactions, leading to a remarkable reduction of 76% in monthly failed transactions (from 55,000 to 13,000), resulting in a substantial decrease in lost revenue by 61%, from $65.33 million to $25.17 million.
  • Implementing Data cleansing, Feature Analysis, and Generate reports from multiple Databases.
  • Process Automation throughout data extracted from different systems and databases.
  • Supporting initiatives for data integrity and normalization.
  • Customer Lifecycle Management Strategy Development for Ed-Tech Platform.
  • A/B testing & Hypothesis testing.
  • Assisting strategic business unit.


Tools & Technology used - Python, Google BigQuery, SQL, Google Data Studio, Airbyte

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10ms promotion-ceremony of Niloy Biswas - Specialist
10ms promotion-ceremony of Niloy Biswas - Sr. Business Intelligence Analyst
10 Minute School best performer certificate of Niloy Biswas
10ms promotion of Niloy Biswas
10 Minute School best performer crest of Niloy Biswas
SheSTEM Logo

SheSTEM | Dhaka, Bangladesh (Remote)

Instructor - Python for AI & Machine Learning (Contract)
Jul 2025 – Aug 2025

Delivered hands-on instruction in Python for data analysis and introductory machine learning to contribute to SheSTEM’s mission of empowering female STEM graduates.

  • Taught Python for data analysis and introductory ML through hands-on labs.
  • Guided participants to build an end-to-end ML project (data prep → modeling → evaluation).
  • Advanced SheSTEM’s mission of Empowering Female STEM Graduates, collaborating with SheSTEM and partner orgs on curriculum and assessments.
HDNB Logo

Human Development Network Bangladesh (HDNB) | Dhaka, Bangladesh (Remote)

Instructor - Data Analytics (Contract)
May 2024 - Aug 2024

I was an instructor for the Data Analytics Bootcamp, where I taught SQL to aspiring data professionals. My sessions cover a comprehensive range of topics including:

  • Introduction to Databases and SQL.
  • Database types: OLTP, OLAP, Relational, Non-relational.
  • SQL queries from basic to intermediate.
  • Advanced SQL techniques: subqueries, views, window functions, partitioning & clustering.
  • SQL performance optimization and tuning.
  • Creating and managing live dashboards.

I am dedicated to transforming education and empowering individuals to reach their full potential. My goal is to ensure that participants not only understand the theoretical aspects of SQL but also gain hands-on experience to tackle real-world data challenges.


Looking forward to guiding the next generation of data professionals!

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Data Analytics Bootcamp - Niloy
Sheba-Platform Logo

Sheba Platform Limited | Dhaka, Bangladesh

Jr. Data Analyst (Full-time)
Feb 2022 - June 2022

Data Science, Analytics & Insights (DSAI) R&D team.

  • Exploratory Data Analysis, Automated Reports and Dashboards development using SQL & Python.
  • Process Automation throughout data extracted from different systems and databases.
  • Predictive analytics and implementation throughout the SaaS and E-Commerce systems.
  • In-App Event Tracking, Funnel, Journey & App-Based Product Performance Analysis.
  • Customer Lifecycle Management Strategy Development for SaaS and E-Commerce Platform.
  • Business KPI-Centric Strategic Planning & Process-flow Development and Piloting.
  • Assisting strategic business unit.


Tools & Technology used - Python, AWS, SQL, Metabase, Amplitude, Firebase, Play Console, Grafana


Data Analyst Trainee (Full-time)
Oct 2021 - Dec 2021
  • Data Science, Analytics & Insights (DSAI)

Publication

Machine Learning-Based Model to Predict Heart Disease in Early Stage Employing Different Feature Selection Techniques.

Hindawi Publishing Corporation (May 2, 2023)
  • Used six well-known machine learning algorithm and find the best accuracy among them.

Citation:
                                                
    Biswas, N. et al. (2023) “Machine learning-based model to predict heart disease in early stage employing different feature selection techniques,” BioMed Research International, 2023, pp. 1–15. 
    Available at: https://doi.org/10.1155/2023/6864343.
                                            
Published Article

Reviewer Recognition

Case Studies & Projects

A highly-curated archive of machine learning systems, data warehousing pipelines, and analytics suites developed to solve complex commercial scale and operational roadblocks.

Photography



Exhibitions


Achievements

  • Winner – 10 Minute School Internal Hackathon: developed an innovative idea in a competitive setting, securing 1st place among 7 teams.
  • Guest Speaker at SheSTEM Co-Design Session: Provided expert insights on emerging data science trends and essential skills at the Data Science & Analytics career track co-design workshop, organized by SheSTEM and KUET Business and Entrepreneurship Club.
  • Recognized as Top Performer at 10 Minute School in Q3 and Q4 of 2022.
  • Achieved Worldwide Rank 1 in SQL problem-solving on HackerRank.
  • Secured 5th position in the DIU Intra University Programming Contest.
  • Key organizer and academics of the National High School Programming Contest (NHSPC).
  • Solved over 200 problems across various platforms including HackerRank, Leetcode, and URI Online Judge.