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MADIGA MALLIKARJUNA

Full Stack Developer • Bengaluru • m***************@gmail.com • 951****532 • linkedin.com/••••• • drivetube.ai/•••••

Professional Summary

Full Stack Developer with 3+ years of experience designing and implementing mission-critical Smart City and IoT systems. Skilled in Java, Spring Boot, Node-RED and Angular for building scalable API gateways, real-time data pipelines, and high-availability notification services. Proven record of reducing latency and costs while improving security and operational reliability across integrated IoT deployments.

Technical Skills

Programming Languages: Java,JavaScript
Web Technologies: REST APIs
Frameworks and Libraries: Spring Boot,Hibernate,JPA,Angular,Node-RED
Databases: SQL,MySQL,Redis,PouchDB
Cloud and DevOps: Docker,Jenkins,Maven,SonarQube,SVN,Linux
Testing: JUnit,Code debugging
Tools and Methodologies: Modbus TCP,OPC UA,BACnet,MQTT,IoT Hub
API & Security: OAuth 2.0,JWT,API Gateway,Rate limiting
Streaming & Integration: Kafka Streams,Apache NiFi,Node-RED integrations
Architectures & Concepts: Microservices Architecture,High availability,Real-time analytics,Digital twinning

Work Experience

Trinity Mobility Private Ltd
Bengaluru
Full Stack Developer
Mar 2022 – Apr 2025
Worked on Smart City and Industrial IoT platforms, developing notification gateways, API gateways, IoT data gateways and R&D digital-twinning/analytics used by city operations and edge device fleets.
Tech Stack: Java, Spring Boot, Spring Security, OAuth 2.0, JWT, Node-RED, Angular, Docker, Kafka Streams, Apache NiFi, MySQL, Redis, Modbus TCP, OPC UA, BACnet, MQTT, Jenkins, Maven, SonarQube, SVN, Linux, JUnit, PouchDB
  • Scaled a high-availability notification gateway handling 100,000+ users for mission-critical SMS and email alerts; implemented Linux-based automated failover and clustering with Docker, reducing downtime by 80%.
  • Designed and implemented an Enterprise API Gateway using Spring Boot and Spring Security with OAuth 2.0 and JWT, centralizing access for 12+ third-party Smart City vendors and decreasing security vulnerabilities by 45%.
  • Standardized API contracts and applied rate limiting to vendor integrations, shortening average third-party onboarding time by 60% and reducing cross-team integration friction.
  • Developed an Industrial IoT data gateway in Node-RED integrating Modbus TCP, OPC UA and BACnet for 10,000+ edge devices; cut end-to-end data latency by 30% to enable near real-time synchronization with Java cloud backends.
  • Implemented edge-level JavaScript filters in Node-RED to pre-process sensor streams, reducing downstream cloud storage and processing costs by 20% while preserving critical telemetry for analytics.
  • Led R&D for digital twinning and real-time analytics pipelines using Kafka Streams and Apache NiFi, improving overall system performance by 20%, lowering operational costs by 15%, and automating dispatch workflows to reduce emergency response times by 25%.

Education

JNTU Kakinada
Bachelor of Technology • Kakinada, India • June 2016 – Sep 2021

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