Bestin Lalu - Portfolio

About Me

Hello! I'm Bestin Lalu

A passionate developer and tech enthusiast

Welcome to my portfolio! I'm a dedicated professional with expertise in backend development, software engineering, and problem-solving.

I love creating elegant solutions to complex problems and continuously learning new technologies.

Email: blalu@ncsu.edu

Location: Raleigh, NC

Skills

C++ Python Java Cloud DBMS REST API Kafka Git

Education

📚

Master of Computer Science

North Carolina State University

2025 - 2027

GPA: 4.0 / 4.0

Relevant coursework: Design and Analysis of Algorithms, DBMS, OO Design and Development, Advanced Distributed Systems

🎓

Bachelor of Technology in Computer Science and Engineering

Model Engineering College

2018 - 2022

CGPA: 8.43 / 10.0

Relevant coursework: Programming in Java, Python and C++, SDLC, Computer Networks and Architecture, AI

Experience

💼

Software Development Engineer 2

Outpayce from Amadeus

May 2024 - July 2025

• Designed and deployed two Azure cloud-native applications: a high-throughput Kafka-based service processing 1M+ transactions/day, and a REST-based marketplace platform that enables customers to compare and select payment partners, improving visibility into the payment platform and eliminating initial manual overhead, resulting in faster customer onboarding.

• Developed an 80%+ confident SARIMAX forecasting model predicting daily payment transactions, guiding capacity planning and serving as the team's first AI/ML proof of concept, driving broader adoption of ML capabilities.

• Optimized performance by 70% (from 10s to under 3s) through redesigning JSON filtering algorithm using JsonPath, reducing O(nk) complexity to O(n+c) and cutting page load.

• Reduced operational costs by 50% by leveraging Horizontal Pod Autoscaling and log volume reduction strategies on Azure.

• Enhanced Kafka service reliability by implementing health checks and pausability mechanisms, reducing missing events and unbilled transactions to zero during system crashes or broker outages.

• Developed Splunk/Kibana dashboards to monitor key KPIs, input/output flows, missing events, and data inconsistencies.

• Drove the Platform team's transition from Docker to Podman for local development, establishing standardized containerization practices supported by detailed documentation and runbooks.

• Mentored 2 junior developers, strengthening their knowledge of industry programming practices as well as agile workflows.

Java Quarkus Azure Kafka Async Splunk Prometheus/Grafana

💼

Software Development Engineer 1

Outpayce from Amadeus

May 2023 - May 2024

Worked closely on architecture and API design for the Outpayce Marketplace Catalog, creating clear low-level designs and applying industry design patterns to build a reliable, scalable platform.

Java Quarkus REST APIs MongoDB

💼

Software Development Engineer 1

Amadeus

August 2022 - April 2023

Implemented robust Credit Card Payment Authorization, Capture, and Notification features in Amadeus Payment Server using C++, ensuring reliable transactions across airlines and partners.

C++ SQL Linux

💼

Machine Learning Intern

Feynn Labs

March 2022 - April 2022

Analyzed the different nutritional deficiencies and along different regions as well as different states and compared it with a standard provided by the RDA. Produced an outcome which can serve as a potential marketable area for a Biotech start-up.

Python Pandas Numpy PCA Analyis

My Projects

📱

Course Enrollment System

Developed and deployed a full-stack enrollment platform that manages user roles and enables students to register, enroll/dropcourses, and share peer-visible feedback. Implemented a secure admin dashboard and RESTful APIs to manage CRUD operations for students, courses, and feedback.

Website Login Details:
username: admin, password: password

Ruby on Rails AWS SQLite3 HTML REST API

GitHub Website

🌤️

Attendance Marking System for Online Classes

Engineered the full ML pipeline for facial recognition, integrating a Flask API to dynamically train the TensorFlow/Keras model with new student enrollment data. Marks attendance using facial recognition technology at random intervals and exports data in CSV format.

Python Flask OpenCV TensorFlow Keras HTML/CSS

GitHub

✅

Market Segmentation for Biotech-Tech Startups

Conducted market segmentation analysis for a biotech startup using ML and datasets focusing on demographics, geography, and nutrition to identify target markets in India. Identified highly potential regions (Haryana, Meghalaya) for product launches.

Python Pandas Numpy PCA Analysis

GitHub

Certifications

🏆

Vector Databases Professional Certificate by Weaviate

View Credential

Weaviate

Issued: December 2025

Professional level certification demonstrating expertise in using vector databases for database development creating dynamic query results based on user preferences and leveraging Large Language Models (LLM) for creating generating textual responses to queries.

🏆

Docker Foundations Professional Certificate

View Credential

Docker, Inc

Issued: December 2025

Professional level certification demonstrating expertise in containerization and Docker products.

🎓

Microsoft Certified: Azure AI Fundamentals

View Credential

Microsoft

Completed: March 2025

Comprehensive course covering Artificial Intelligence workloads, fundamental principles of machine learning on Azure, features of Computer Vision, Natural Language Processing (NLP) and Generative AI workloads on Azure

📚

Microsoft Certified: Azure Fundamentals

View Credential

Microsoft

Completed: June 2024

Comprehensive course covering cloud concepts, Azure architecture and services, Azure management and governance.

🎓

Enterprise Design Thinking Practitioner

View Credential

IBM

Completed: July 2021

Acquired knowledge of applying Enterprise Design Thinking and its value.

🎓

Game Theory with Python

View Credential

Coursera

Completed: August 2020

Acquired knowledge on game theory and its applications in Python.

🎓

Python (Basic)

View Credential

HackerRank

Completed: August 2020

Completed HackerRank coding challenges on Scalar Types, Operators and Control Flow, Strings, Collections and Iteration, Modularity, Objects and Types and Classes.

🎓

Programming for Everybody (Getting Started with Python)

View Credential

University of Michigan

Completed: July 2020

Attained foundational knowledge in programming using Python.

Awards & Honors

High Flier Award

Outpayce from Amadeus

August 2025

Recognized for successful development and launch of Marketplace Catalog - a payments marketplace dedicated to travel, designed to help airlines choose the right connection to improve their performance, strengthening our role as a pioneer in payments and partnerships.

PaceSetter

Amadeus

January 2025

Awarded for effective adoption of "faster better simpler" at Amadeus Labs

PaceSetter

Amadeus

September 2024

Awarded for effective adoption of "faster better simpler" at Amadeus Labs

PaceSetter

Amadeus

December 2024

Awarded for effective adoption of "faster better simpler" at Amadeus Labs

GameChanger

Amadeus

Recognized for the Hurrah GameChanger Program; Quickly scaled up on Java, Skube, Quarkus, MongoDB. Contributed significantly to the customer management microservice. Implemented CI pipleline and helped other teammates in resolving issues.