Subhadip Pahari

Senior Software Engineer

Germany5 yrs 5 mos experience
AI EnabledAI ML Practitioner

Key Highlights

  • Over 10 years of software development experience.
  • Expert in full-stack development and microservices architecture.
  • Proven track record in optimizing large-scale systems.
Stackforce AI infers this person is a Full-Stack Software Engineer with expertise in Fintech and E-Commerce solutions.

Contact

Skills

Core Skills

Full-stack DevelopmentReact.jsData EngineeringAi/ml Systems ArchitectureSystem ArchitectureAd-tech SolutionsMicroservices ArchitectureFintech Project ManagementInfrastructure ArchitectureCampus Services OptimizationMobile Application DevelopmentEdtech DevelopmentE-commerce DevelopmentApi DevelopmentFintech Application DevelopmentHr Management Application Development

Other Skills

NodejsDevOpsMongoDBSpring BootJavaNext.jsLarge Scale DevelopmentApache SparkSQLApache KafkaAvroPython (Programming Language)HadoopTypeScriptVue.js

About

10 years of Software Development experience. I love creating exciting stuff.

Experience

5 yrs 5 mos
Total Experience
10 mos
Average Tenure
4 mos
Current Experience

Paypal

Senior Software Engineer

Jan 2026Present · 4 mos · India · On-site

  • I am working as Full Stack developer. Both react.js (next.js) + java (springboot) + playwright testing. I am also working on High level design docs and documentation also.
NodejsDevOpsMongoDBSpring BootReact.jsJava+2

Mastercard

Senior Software Engineer

Aug 2025Jan 2026 · 5 mos · India · On-site

  • Senior Software Engineer specializing in Data Engineering and AI/ML systems architecture. Designing and maintaining scalable backend infrastructure for Mastercard's shopper intelligence and data enhancement platforms serving millions of transactions daily.
  • Key responsibilities:
  • Architected and optimized large-scale data pipelines processing 100M+ daily events using Apache Spark, Kafka, and SQL-based systems
  • Led API gateway modernization reducing latency by 40% and improving system throughput by 3x
  • Implemented ML model integration features enhancing customer intelligence and predictive capabilities
  • Mentored junior engineers on system design patterns and best practices for distributed systems
  • Collaborated with cross-functional teams on critical customer data enhancement initiatives
  • Technologies: Spark, Kafka, Python, SQL, Spring Boot, Microservices Architecture
Large Scale DevelopmentApache SparkSpring BootSQLApache KafkaAvro+4

Walmart

Senior Software Engineer

Feb 2025Apr 2025 · 2 mos · Bentonville, AR · On-site

  • Senior Software Engineer on Walmart's Ad-Tech team, focusing on digital signage and customer engagement solutions serving thousands of retail stores globally.
  • Key accomplishments:
  • Architected and deployed digital signage management system, improving display management efficiency by 30% across retail network
  • Redesigned backend microservices architecture, increasing system robustness by 40% under high-load scenarios
  • Modernized React.js frontend with performance optimizations, improving application usability by 25% and accelerating initial page rendering
  • Optimized API gateway and database queries using caching strategies, reducing roundtrip time by 35% and improving customer experience
  • Led code reviews and architecture discussions, establishing best practices for system design and reliability
  • Collaborated with product, design, and operations teams to deliver customer-focused advertising solutions
  • Technologies: React.js, Node.js, RESTful APIs, SQL, Microservices, System Design
React.jsNode.jsSQLTypeScriptAd-Tech SolutionsMicroservices Architecture

Lykas

Senior Software Engineer ( Architect )

Feb 2024Feb 2025 · 1 yr · California, United States · Hybrid

  • Led a team of seven developers on a high-impact, large-scale fintech project, promoting agile methodologies and fostering a collaborative culture to deliver high-performance and quality-driven outcomes.
  • Architected and deployed a scalable, multi-cloud infrastructure utilizing AWS, GCP, and Linode, achieving high availability, fault tolerance, and robust backend and database reliability.
  • Directed a comprehensive system architecture overhaul (version 2), increasing system performance by 75% and reducing bugs by 30%, resulting in enhanced stability and user satisfaction.
  • Developed a micro-frontend architecture with Vue.js and React, leveraging CDN for optimized content delivery, high availability, and seamless user experience.
  • Designed and implemented Kubernetes-driven microservices, integrating service discovery, load balancing, and circuit breaker patterns to ensure scalability, resilience, and efficient resource utilization.
  • Authored 70+ pages of technical documentation and created advanced encryption protocols to securely handle Protected Personal Information (PPI), meeting regulatory compliance and data security standards.
Node.jsReact.jsVue.jsdockerKubernetesContinuous Integration and Continuous Delivery (CI/CD)+3

California state university, fullerton

Graduate Student Assistant

Oct 2022Dec 2023 · 1 yr 2 mos · Fullerton, California, United States · On-site

  • Worked as a student assistant. Deployed five ServiceNow applications incorporating Catalog Item, Glide Record, and workflow features to streamline campus services and drive higher user engagement.
  • Improved workflow functionality by integrating third-party services and working closely with stakeholders to refine project scope and meet diverse requirements.
  • Created a mobile campus map application for iOS and Android, providing real-time navigation and accessibility to over 30,000 students with Google and Apple Maps integration.
  • Performed extensive testing on mobile and ServiceNow applications to ensure reliability and deliver a seamless, cross-platform user experience.
Front-End DevelopmentSoftware DevelopmentServiceNowComputer ScienceCampus Services Optimization

Spak engineering

Full-stack Developer

Sep 2021Aug 2022 · 11 mos · Bangalore Urban, Karnataka, India · On-site

  • Led a team of five through the entire development lifecycle of an EdTech product, implementing a microservices architecture to enhance modularity and scalability.
  • Refactored 30% of legacy APIs and developed 20% of new REST endpoints, optimizing backend performance and expanding application functionality.
  • Upgraded a single MySQL server to a four-node multi-master cluster, cutting query times from 5 seconds to 200 milliseconds and significantly improving database efficiency.
  • Integrated CI/CD pipelines with Kubernetes, accelerating software delivery speed and reliability by 30%.
  • Established Cypress testing to enhance system performance and validate user interactions, strengthening application dependability.
  • Authored 50+ pages of technical documentation covering Backend, Frontend, Database, and overall system architecture to ensure maintainability and clear development guidelines.
DevOpsProject ManagementProxyNode.jsReact.jsSelenium+11

Novelship

Product Engineer

May 2021Sep 2021 · 4 mos · Singapore · Remote

  • Developed 30% of new REST APIs and refactored 20% of legacy backend code, improving functionality for high-traffic E-Commerce applications.
  • Built over 80 React components for both web and React Native mobile apps (Android and iOS), facilitating cross-platform development.
  • Optimized product search for over 1 million daily users, enhancing the user experience on web and mobile platforms.
  • Scaled the coupon system to handle over 3 million daily API requests during peak festive periods, ensuring consistent performance under heavy traffic.
  • Implemented robust backend testing protocols to achieve high test coverage, maintaining service reliability across applications
DevOpsAlgoliaReact.jsPostgreSQLFront-End DevelopmentExpress.js+10

Augustus89 technique private limited

Senior Software Engineer

Nov 2020Apr 2021 · 5 mos · Gurugram, Haryana, India · On-site

  • Led the design and maintenance of a FinTech application, boosting customer engagement by 15% through feature enhancements and an improved user experience.
  • Delivered a Data Protection module utilizing Tokenization and AES256 encryption, strengthening security and meeting industry compliance standards.
  • Implemented NLP techniques to analyze email content, enabling extraction of key financial information for better data management.
  • Built and launched an automated financial data analysis tool within three months, enhancing operational efficiency and reducing manual effort.
  • Architected serverless, high-availability functions by deploying 25% of APIs on AWS Lambda and 75% on Kubernetes pods, improving scalability and reliability.
KubernetesReact.jsFront-End DevelopmentDocker ProductsCypress.ioRedux.js+4

1101 tech corporation

Full Stack Engineer

Oct 2018Oct 2020 · 2 yrs · Gurgaon, Haryana, India · On-site

  • Oversaw Firebase implementation for real-time database, authentication, and CDN hosting across five applications, enhancing scalability and user experience.
  • Improved performance and user satisfaction in an HR management application by optimizing SQL queries, reducing response times by 20%.
  • Migrated two monolithic applications to a microservices architecture, significantly increasing scalability, maintainability, and consistency in deployments.
  • Enhanced code integrity and maintainability by refactoring 25% of the legacy codebase across multiple applications.
  • Set up a distributed MongoDB cluster with optimized data storage and continuous backup, ensuring robust and reliable data management.
  • Created a CLI-based SQL backup scheduler for the HR CMS application, streamlining data management and improving data reliability
MongoDBVue.jsNode.jsReact.jsProduction DeploymentFront-End Development+8

Education

California State University, Fullerton

Master of Science - MS — Computer Software Engineering

Aug 2022Dec 2023

Lovely Professional University

Bachelor of Technology (BTech) — Mechanical Engineering

Jan 2010Jan 2014

CONTAI HIGH SCHOOL

12TH — SCIENCE

Jan 2008Jan 2010

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