Arun Yadav

About Arun Yadav

I am a results-driven Lead Software Development Engineer at Freecharge Payment Technologies (subsidiary of Axis Bank) with 4+ years of experience building scalable backend systems and fintech solutions. I specialize in Node.js, microservices architecture, and real-time systems that process transactions and interactions for over 100 million users.Core ExpertiseMy professional journey demonstrates consistent growth from technical contributor to system architect. At Freecharge, I lead the development of critical systems including:Dealer Management System: Streamlined merchant onboarding and agent interactions, improving operational efficiencyMicrolap (Loan Against Property): Built a complex, secure lending platform in collaboration with Axis Bank, handling property-backed loans with advanced automation and secure SSL-based banking integrations.Real-time Location Tracking: Implemented location-based services leveraging Kafka and microservices architecture for distance calculations and merchant verificationMerchant Account Opening: Integrated secure two-way SSL handshakes with Axis Bank for encrypted data transmission and key signingHierarchicalManagement & AI-Driven Automation: Developed dynamic form builders, agent facial recognition, and location verification for enhanced customer engagement At Click Labs/Jungleworks, I architected omnichannel communication platforms including live chat, audio/video calls, and campaign automation using real-time Socket.io communication with RFM segmentation for personalized customer engagement.Technical StackBackend: Node.js, Express.js, JavaScript, Microservices | Databases: MySQL, MongoDB | Real-time: Socket.io, Kafka | Cloud & Infrastructure: AWS (S3, EC2, API Gateway), Docker, Docker, SonarQube | Fundamentals: Data Structures, Algorithms, DBMS, Git/GitHubRecognition & AchievementsFreecharge Warrior Award & Half-Year Achievement AwardEmployee of the Month (Click Labs/Jungleworks, Oct 2022)AIR 196 in All India NIMCET 2018 (National-level MCA entrance exam)AWS Certified: Completed \"Developing on AWS\" certification6-Star Problem Solver on HackerRank3-Star proficiency in C++ and Python200+ problems solved on GeeksForGeeks | 90+ problems on HackerEarthActive open-source contributor on GitHub.#Fintech #Backend #Microservices

Experience

1. Software Development Engineer A4

   Freecharge

   Apr 2025 — Present · Gurugram, IN

   Led backend engineering with microservices architecture and REST APIs for merchant and lending workflows, significantly improving throughput. Designed event-driven systems with Kafka and Socket.io for real-time communication, ensuring high message delivery reliability and low latency. Integrated secure banking interfaces using mutual TLS, certificate/key management, and hardened auth flows, reduced security risk. Optimized MySQL and MongoDB schemas, indexing, and caching to enhance query performance and data consistency for high-traffic services. Drove code reviews, CI/CD pipelines, and SonarQube quality gates to strengthen maintainability and stability across services. Collaborated with Axis Bank, product, and ops teams to align roadmaps and streamline merchant onboarding, accelerating release cadence. Orchestrated onboarding automation to cut merchant activation time, enabling faster activation and expanded merchant base. Improved deployment stability by increasing automated test coverage, resulting in fewer production incidents across projects and services.

Education

• Govt. Nirbhay Singh Patel New Science College, Holkar College Campus, Indore

  Bachelor's degree, Computer Science(B.sc)

  2015 — 2018

• National Institute of Technology Karnataka

  Master's degree, Master of computer application

  2018 — 2021