Joseph Praveen Kumar S Joseph24x7

👋 Hey, I'm Joseph Praveen Kumar S

🚀 Lead Developer | Java & Spring Boot | Distributed Systems | Backend Engineering

Building backend systems that are scalable, resilient, and built to last.

With 11+ years of experience in software engineering, I specialize in designing and developing high-performance backend systems using Java and Spring Boot.

My experience spans Payments, Banking, and Logistics, where I've worked on distributed systems, event-driven architectures, microservices, and high-throughput applications.

I enjoy turning complex problems into simple, maintainable solutions — from writing code to designing systems.

🧑🏻‍💻 What I Work With

☕ Java / Spring Boot       → Backend & Microservices
⚡ Kafka / RabbitMQ         → Event-Driven Systems
🌊 Apache Flink             → Stream Processing
🗄️ Oracle / PostgreSQL     → Data & Persistence
🚀 AWS / Azure / GCP        → Cloud & Infrastructure
🐳 Docker / OpenShift      → Containers & Deployment
🧪 JUnit / Testcontainers  → Reliable Software
📐 HLD / LLD                → System Design
🧠 DSA / Algorithms        → Problem Solving

🏗️ Engineering Interests

Distributed Systems
Microservices Architecture
Event-Driven Architecture
High-Performance Backend Systems
Scalability & Resilience
Concurrency & Multithreading
System Design — HLD & LLD
Clean Code & Design Patterns
Performance Engineering
Developer Productivity & Best Practices

💼 My Journey

🏢 Company	💼 Role	📅 Period
🟡 CITI	Senior Application Developer	Feb 2026 – Present
🔵 UPS	Senior Application Developer	Jan 2024 – Feb 2026
🔵 Infosys	Technology Lead	Oct 2021 – Jan 2024
🔵 TCS	I.T. Analyst	Oct 2019 – Oct 2021
🔵 Infosys	Technology Analyst	May 2015 – Oct 2019

🔬 Things I Like Building

          ┌─────────────────────────────┐
          │       Business Problem      │
          └──────────────┬──────────────┘
                         ↓
              ┌────────────────────┐
              │   System Design    │
              │   HLD / LLD / DDD  │
              └─────────┬──────────┘
                        ↓
        ┌───────────────────────────────┐
        │       Java + Spring Boot      │
        │          Microservices        │
        └───────────────┬───────────────┘
                        ↓
       ┌────────────────────────────────┐
       │ Kafka │ Redis │ DB │ Flink      │
       └────────────────┬───────────────┘
                        ↓
              ☁️ Cloud + Kubernetes
                        ↓
              🚀 Scalable Systems

🧩 Current Tech Stack

Backend

Java 21 Spring Boot Spring WebFlux Hibernate REST GraphQL

Architecture

Microservices Distributed Systems Event-Driven DDD Design Patterns

Data

Oracle PostgreSQL MS SQL Couchbase Redis

Messaging & Streaming

Apache Kafka RabbitMQ Apache Flink

Cloud & DevOps

AWS Azure GCP OpenShift Docker Kubernetes Jenkins ArgoCD

Testing & Observability

JUnit 5 Testcontainers Grafana Dynatrace JMeter

🧠 Beyond Writing Code

I believe senior engineering is not just about writing more code.

It's about:

Understanding the problem → Designing the right solution → Writing maintainable code → Measuring the system → Improving it continuously.

I also enjoy mentoring developers, sharing engineering practices, and solving challenging technical problems.

📚 Currently Exploring

Advanced Distributed Systems
System Design & Scalability
Java Performance & Concurrency
Event-driven architectures
Cloud-native application design
Streaming systems with Apache Flink
Practical applications of AI in software engineering

📫 Let's Connect

📧 Email: joseph24x7@outlook.com

💼 LinkedIn: linkedin.com/in/joseph24x7

💻 GitHub: github.com/Joseph24x7

🧠 LeetCode: leetcode.com/u/joseph24x7

⚡ A Little About Me

while (true) {
    learn();
    build();
    solveProblems();
    improve();
}

"Great software is not just about making things work. It's about making them work well, reliably, and at scale."

⭐ If you find something useful here, feel free to explore my repositories.

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