About Deep Singh — Java Developer & Technical Trainer
Deep Singh is an ambitious and results-driven Java Developer and Technical Trainer with over 9+ years of experience in technical training and 4.5+ years of hands-on software development experience.
He specializes in designing, developing, and deploying scalable enterprise applications using Java-based technologies and modern development practices, with a strong focus on microservices, cloud integration, and enterprise-grade FinTech systems.
Professional Summary
Deep Singh is an experienced Java Developer and Technical Trainer who combines deep technical expertise with a passion for mentoring. He has proven ability to work independently and collaboratively in agile teams to deliver high-quality, performance-driven software solutions.
He is skilled in analyzing complex business requirements, translating them into technical solutions, and applying industry best practices throughout the software development lifecycle. His training experience spans thousands of students and professionals across Java, Spring Boot, Microservices, Android, and Flutter.
Beyond development and training, Deep Singh is passionate about sharing knowledge through his blog, YouTube channel, and open-source contributions on GitHub.
Technical Skills
Programming & Core Concepts
- Core Java & Advanced Java
- Object-Oriented Programming (OOP)
- Multithreading & Concurrency
- Exception Handling
- Collections Framework
Frameworks & Technologies
- Struts
- Spring Boot
- Spring Security
- Spring Batch
- Spring Cloud (Eureka, API Gateway)
- Microservices Architecture
- Hibernate ORM
Databases
- MySQL
- MongoDB
Web Technologies
- HTML, CSS, JavaScript
- jQuery, AJAX
- JSP
Build & Version Control
- Maven
- Gradle
- Git, GitHub, GitLab
Project Management & Tools
- Jira
- CanvasJS
Professional Experience
FinTech Project Experience
Hands-on experience in developing and supporting enterprise-grade financial applications, including:
- Payment Gateway (PG) Systems — secure, high-throughput transaction processing
- Customer Relationship Management (CRM) Systems — enterprise CRM platforms for financial services
- Domestic Money Transfer (DMT) Solutions — real-time money transfer systems
- Aadhaar Enabled Payment System (AEPS) — biometric authentication-based payments
Training & Mentorship
Deep Singh is an experienced technical trainer delivering structured learning programs across multiple technologies:
- Java Development — Core to Advanced, including OOP, Collections, Multithreading, and JDBC
- Spring Boot & Microservices Architecture — REST APIs, Spring Cloud, Eureka, API Gateway
- Android Application Development — Activities, Fragments, RecyclerView, Retrofit
- Flutter Framework — Widgets, State Management, API Integration
His teaching style focuses on practical, project-based learning — students build real applications while learning the underlying concepts.
API Integration Experience
Deep Singh has integrated a wide range of third-party APIs into production applications:
- Google Maps API
- Facebook Login & Integration
- Gmail API Integration
- Firebase Cloud Messaging (FCM)
- Phone Authentication Services
- YouTube API
- Weather API Integration
Frequently Asked Questions
Who is Deep Singh?
Deep Singh is an ambitious and results-driven Java Developer and Technical Trainer with over 9 years of experience in technical training and 4.5+ years of hands-on software development experience.
What technologies does Deep Singh specialize in?
Deep Singh specializes in Core Java, Advanced Java, Spring Boot, Spring Security, Spring Batch, Spring Cloud, Microservices Architecture, Hibernate ORM, MySQL, MongoDB, Android, and Flutter development.
What domains has Deep Singh worked in?
Deep Singh has hands-on experience in enterprise-grade FinTech applications including Payment Gateway (PG) systems, Customer Relationship Management (CRM) systems, Domestic Money Transfer (DMT) solutions, and Aadhaar Enabled Payment System (AEPS).
Does Deep Singh offer technical training?
Yes. Deep Singh delivers structured training programs in Java Development (Core to Advanced), Spring Boot & Microservices Architecture, Android Application Development, and the Flutter Framework.
How can I contact Deep Singh?
You can reach Deep Singh through his blog at deepsingh44.blogspot.com, YouTube channel @deepsingh44, GitHub profile github.com/deepsingh44, and LinkedIn profile in.linkedin.com/in/deepsingh44.
Let's Connect
Whether you are looking for enterprise Java development expertise, technical training, or collaboration on a project, feel free to reach out through any of the channels above.
Explore more: Browse tutorials on the D.Tech Academic blog covering Java, Spring Boot, Microservices, Android, Flutter, and more.
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