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📄 Resume

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Ramachadran Nellaiyappan

Senior Java Developer

Experienced Java Developer with 12+ years of expertise in building scalable web applications using Java, Spring, Angular, and databases like Postgres and Oracle. Skilled in agile methodologies. Passionate about enhancing code quality, driving productivity through innovative automation, and leading initiatives to improve development processes.

💼 Professional Experience

Senior Software Developer | 1&1 Mail & Media Development & Technology GmbH | January 2021 – Present (4+ Years)

  • Leading projects for Germany’s top e-mail provider with 43M+ users
  • Designed and developed applications using Java Spring frameworks and Apache Wicket
  • Designing effective solutions for real-time problems and translating them into actionable, implementable plan
  • Architected microservices-based solutions, ensuring modularity, reusability, and maintainability of the codebase
  • Migrated legacy applications to modern Java architectures, reducing tech debt
  • Integrated varies automation tools like Renovate, Open-Rewrite to reduce technical debt
  • Strengthened security with penetration testing and thread modeling.
  • Brainstormed and documented clear process and authored many How-To procedures, ensuring consistent processes, supporting team onboarding, and promoting best practices

Assistant Consultant | Tata Consultancy Services | January 2013 – December 2020 (8 Years)

  • Developed enterprise-grade Java applications for international clients
  • Developed RESTful web services to integrate with internal and external third-party systems
  • Received Service & Commitment Awards for major database migrations
  • Designed and Migrated varies legacy applications to modern Java architectures, reducing technical debt and improving system security and performance
  • Regularly conducting security auditing on varies projects and provides & receives feedback to improve application security
  • Creating a detailed delivery plan and overseeing the progress to meet delivery point
  • Facilitate delivery planning and stakeholder meetings
  • Developed and optimized complex SQL queries, stored procedures, triggers, and views to read & write data efficiently
  • Analyzed & implemented indexing strategies, partitioning, and query optimizations to improve database performance

💻 Technical Skills

  • Backend Languages & Frameworks: Java, Spring Frameworks, SpringBoot, Hibernate, Kafka
  • Frontend Languages & Frameworks: Apache Wicket(Java Server Side Rendering), Typescript, Angular, SAAS, Tailwind CSS
  • Databases: Postgres, Oracle, MongoDB, SQL & PL/SQL
  • DevOps & Cloud: Docker, Kubernetes, CI/CD, Git & GitLab, GitHub
  • Methodologies:
    • Agile (Scrum)
    • Test-Driven Development (TDD for Development)
    • Behavioral-Driven Development (BDD for Testing)
  • Security Testing Tools & Methodologies: STRIDE Thread Modeling, Penetration Testing, OWASP ZAP
  • Application Testing Languages & Frameworks: Junit5, Serenity, Cucumber
  • Build Tools: Maven, NPM
  • Documentation: ASCIIDOC, MkDocs, OpenAPI with Swagger

🧠 Soft Skills

  • Enthusiastic
  • Continuous Learning & Innovation
  • Leadership & Mentorship
  • Effective Communication
  • Problem-Solving & Decision-Making
  • Productivity
  • Planning & Prioritization

🛠️ Tools

  • Agile: JIRA, Confluence, MIRO
  • Project Design: Figma, PlantUML
  • Development: IntelliJ IDEA, SonarQube, JFrog, Docker, Git, TestContainers
  • CICD: GitHub Actions, Jenkins, GitLab
  • Deployment:
    • Kubernetes
    • Vercel (Serverless Functions)
    • GitHub Pages (for static sites)
    • Render.io (Docker containerized services)
  • Monitoring: Kibana, Grafana, Prometheus

🎓 Education

Bachelor of Engineering in Computer Science and Engineering(B.E) | National Engineering College, Tamil Nadu, India

  • Duration: 2008 – 2012 (4 Years)
  • Graduation: First Class with a GPA of 8/10
  • Project: Intelligent Traffic Control System with Radio Frequency Identification
    • Published, Presented the paper in various colleges and received awards as well
    • Developed a system using RFID technology for real-time traffic monitoring and intelligent traffic control with an AI powered Decision-making system
    • The project aimed to improve traffic flow and reduce congestion by automating signal control based on real traffic patterns

🗣️ Speaking Skills

  • English (Fluent)
  • Deutsch (A1—Very Basic)
  • Tamil (Native)

🎖️ Certifications

Oracle Certified Associate PL/SQL Developer

🏆 Awards & Recognitions

  • Certificate of Excellence - December 2019
    • Issued by Client Partner Telefonica GmbH
    • Awarded for successfully completing TWO major Java, Weblogic & Database upgrades
  • Star of the Month Award - November 2019
    • Issued by Tata Consultancy Services
    • Awarded for successfully completing Migration Projects
  • Service & Commitment Award - January 2018
    • Issued by Client Partner British Telecom
    • Awarded for successfully completing Cloud Transformation projects
  • Service & Commitment Award - January 2016
    • Issued by Tata Consultancy Services
    • Awarded for successfully completing major Oracle Database migration

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