Kartikay Bansal

Turning raw data into real-world impact

with clean code and scalable systems

Bridging Data Engineering, Software Development, and Data Science to build intelligent, scalable systems that deliver real value.

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<About Me/>

kartikay@portfolio ~ /about

whoami

I'm a Data Engineer and Backend Developer with 3+ years of experience building scalable data pipelines, APIs, and cloud-native applications.

Core Stack:

PythonFastAPISQLAWSKafka

cat skills.txt

Designed and implemented:

→ETL workflows using PySpark & AWS Glue
→Real-time data ingestion systems
→Analytics platforms with Docker containerization
→CI/CD pipelines for automated deployments

cat expertise.md

Blending software engineering with data science, I specialize in transforming raw, high-volume datasets into reliable, actionable insights. My experience spans the entire data lifecycle—from ingestion and transformation to serving ML-ready features.

echo $PASSION

Passionate about architecting resilient systems

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Currently exploring:

AI/MLMLOpsVector DatabasesReal-time AnalyticsCloud-native Architecture

<Skills & Experience/>

A combination of technical expertise and professional experience

Data Scientist / Software Engineer - II

Here Technologies•Mumbai, India

Aug 2023 - Present

Python (Async, FastAPI)AWS (Lambda, S3, Sagemaker)SQL & NoSQL (MySQL, MongoDB)Git (GitHub, GitLab)CI/CDDockerData EngineeringData ScienceMachine LearningHere Maps SDKAdaptabilityProblem SolvingLeadership

•Delivered 3 concurrent projects by building Python libraries and FastAPI tools to automate feature engineering, data validation, and experiment tracking
•Enhanced geospatial and EV data pipelines with custom filters and transformations to boost performance and reliability
•Analyzed router-level data to identify travel behavior patterns, segment trips, and detect anomalies for feature generation
•Designed cost-efficient AWS architectures and optimized GitLab CI/CD workflows, reducing costs by 30% and improving deployment speed
•Built interactive geospatial visualizations using Here Maps SDK to improve data exploration and interpretability
•Led end-to-end project delivery, mentored interns, and actively contributed to team development

Software Engineer

Postman•Bangalore, India

Jun 2022 - Aug 2023

JavaScript (Node.js, React)API MonitoringPerformance TestingObservabilityAPI DevelopmentPythonAWS CI/CDCommunicationCollaboration

•Designed and optimized a high-scale observability solution for monitoring and analyzing API performance
•Built a GUI-based API monitoring tool achieving 90% internal adoption, improving API health tracking across teams
•Strengthened system resilience through Performance Testing & Compatibility Matrix analysis, ensuring 5000+ RPM handling capacity

Data Engineer, Intern

Postman•Bangalore, India

Sept 2021 - Jun 2022

PythonSQL (MySQL)LookerData PipelinesSlack IntegrationAutomationProblem SolvingProactive Communication

•Streamlined analytics workflows by transitioning from manual MySQL analysis to automated Looker pipelines
•Developed data transformation jobs aggregating data from multiple sources for analysis and reporting
•Built a data validation tool for automated Looker dashboard query analysis with Slack notifications

<Projects/>

Building solutions that transform data into impact

Safest Route Suggestion

Data-Driven Safety Navigation

Developed an innovative solution that recommends the safest route between two locations by analyzing crime data and implementing advanced routing algorithms. The system provides real-time safe route suggestions to help users navigate through high-risk areas more securely.

PythonFastAPIHere Maps APIData AnalysisRouting AlgorithmsGeospatial Data

Live Demo Source Code

Virtual Labs - Flow Control Protocols

Interactive Learning Platform

Collaborated with IIT Roorkee to create an interactive virtual lab focused on Flow Control Protocols. This web-based learning platform helps students visualize and understand complex networking concepts through hands-on simulations and interactive experiments.

JavaScriptHTML5CSS3Network ProtocolsInteractive SimulationsEducational Tech

Live Demo Source Code

Babble

Special Needs Therapy Platform

Designed and developed a comprehensive website for a newly established organization providing specialized treatments and therapy services for children with special needs. The platform features an intuitive interface to help families easily access and engage with various therapy services.

ReactResponsive DesignAccessibilityUI/UXBootstrapHealthcare Tech

Live Demo Source Code

<Publications/>

Research contributions in data engineering, machine learning, and analytics

Safest Route Detection via Danger Index Calculation and K-Means Clustering

CMC-Computers, Materials & ContinuaJuly 2021DOI: 10.32604/cmc.2021.018128

Research focused on developing an algorithm for identifying safe navigation routes using crime data analytics and K-Means clustering for crime hotspot detection.

Implemented K-Means clustering for crime pattern analysisDeveloped danger index calculation methodologyInternational collaboration with researchers from Korea and EgyptPublished in a peer-reviewed journal