D. Jana

Verified ExpertIndia

Senior Backend Architect

Java
Distributed Systems
DSA & Database Engineering
DBMS
SQL
Operating Systems

0(0 reviews)

14 ordersMember since 2014

I am deeply passionate about the Mathematical Foundations that power modern computation and have served as a Senior Backend Architect and Technical Leader with 15+ years of deep-tech experience spanning industry-scale product engineering at PayPal, high-volume data research at IIT KGP, and large-scale mentorship. My engineering philosophy is rooted in First Principles—I don't just consume frameworks; I architect their internal mechanics to build, scale, and debug high-throughput systems from the ground up. 🎓 Academic Qualification Bachelor’s Degree in Computer Science & Engineering — WBUT (West Bengal University of Technology) 💼 Qualification & Expertise Computer Science & Engineering graduate with expertise in Backend Architecture, Java, Distributed Systems, Data Structures & Algorithms, DBMS, SQL, Operating Systems, and System Design. Experienced in designing, scaling, debugging, and optimizing high-performance backend systems. Subjects covered 💻 Computer Science ☕ Java Programming 🧩 Data Structures & Algorithms (DSA) 🌐 Distributed Systems & Distributed Computing 🏗️ Backend Development 🧠 System Design & Architecture 🗄️ Database Management Systems (DBMS) 📊 SQL Programming ⚙️ Operating Systems 🔗 API Design & Development 🏛️ Software Architecture 📈 Scalable & High-Performance Systems 🔄 Concurrency & Multithreading 🧮 Algorithms & Problem Solving 🔧 Software Engineering 🐞 Debugging & Performance Optimization 📡 Computer Networks Fundamentals 🗃️ Database Design & Optimization sarvice offer 🛠️ Services Offered — Debasis Jana 👨‍🏫 1-to-1 Computer Science Tutoring ☕ Java Programming Guidance 🧩 DSA & Algorithm Problem Solving 🏗️ Backend Development Support 🧠 System Design & Architecture Guidance 🌐 Distributed Systems Support 🗄️ DBMS & Database Design Guidance 📊 SQL Query & Optimization Support ⚙️ Operating Systems Guidance 🔗 API Design & Development Support 🔄 Concurrency & Multithreading Guidance 🐞 Code Debugging & Performance Optimization 📝 Assignment & Coursework Guidance 🎓 Academic & Software Project Guidance 💼 Technical Interview Preparation 💡 Concept & Doubt Clearing

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Data-structures-and-algorithm (DSA)Distributed-computingJAVASQL programmingOperating SystemDatabase management system (DBMS)PythonComputer-NetworksComputer-fundamentalsComputer-graphicsComputers and structuresComputer ScienceComputer Applications in PharmacyComputer-organisation-and-architectureC++C#C ProgrammingClip-ProgrammingGit & GitHUBMATLABEnglishHindi

Message

Starting from

$20–$30/hr

Orders completed14

Delivery rate90%

Response time1.1 hr

Message Expert

FLN team will connect with D. Jana — if not available will arrange another best rated tutor according to your requirements .

Orders completed

90%

Delivery rate

1.1 hr

Avg response time

About

🎓 Academic Qualification Bachelor’s Degree in Computer Science & Engineering — WBUT (West Bengal University of Technology) 💼 Qualification & Expertise Computer Science & Engineering graduate with expertise in Backend Architecture, Java, Distributed Systems, Data Structures & Algorithms, DBMS, SQL, Operating Systems, and System Design. Experienced in designing, scaling, debugging, and optimizing high-performance backend systems.

Subjects covered

💻 Computer Science ☕ Java Programming 🧩 Data Structures & Algorithms (DSA) 🌐 Distributed Systems & Distributed Computing 🏗️ Backend Development 🧠 System Design & Architecture 🗄️ Database Management Systems (DBMS) 📊 SQL Programming ⚙️ Operating Systems 🔗 API Design & Development 🏛️ Software Architecture 📈 Scalable & High-Performance Systems 🔄 Concurrency & Multithreading 🧮 Algorithms & Problem Solving 🔧 Software Engineering 🐞 Debugging & Performance Optimization 📡 Computer Networks Fundamentals 🗃️ Database Design & Optimization

sarvice offer 🛠️ Services Offered — Debasis Jana 👨‍🏫 1-to-1 Computer Science Tutoring ☕ Java Programming Guidance 🧩 DSA & Algorithm Problem Solving 🏗️ Backend Development Support 🧠 System Design & Architecture Guidance 🌐 Distributed Systems Support 🗄️ DBMS & Database Design Guidance 📊 SQL Query & Optimization Support ⚙️ Operating Systems Guidance 🔗 API Design & Development Support 🔄 Concurrency & Multithreading Guidance 🐞 Code Debugging & Performance Optimization 📝 Assignment & Coursework Guidance 🎓 Academic & Software Project Guidance 💼 Technical Interview Preparation 💡 Concept & Doubt Clearing

Academic background

Qualifications

Bachelor's — WBUT — Computer Science and Engineering
Software Engineering
Software Architecture

Languages

EnglishHindi

Expertise

Specialization

Java DevelopmentBackend Architecture & DevelopmentDistributed SystemsSystem Design & ArchitectureData Structures & Algorithms (DSA)DBMSSQL & Database OptimizationOperating SystemsAPI Design & DevelopmentConcurrency & MultithreadingScalable & High-Performance SystemsSoftware ArchitectureDatabase Design & EngineeringPerformance Optimization & DebuggingSoftware Engineering

Services Offered

Assignment helpLive tutoringCoursework helpLive tutorinHomework help solution

Courses

Web development html css jsPython for data science

Student reviews

What students say

Rated 5 out of 5
Excellent work — well-structured, properly cited, and delivered ahead of the deadline. Exactly what I needed to push my grade up.
Alex M.
Academic Essay
Rated 5 out of 5
Really impressed with the quality and the attention to detail. The feedback notes helped me understand what to look for in my own writing going forward.
Jamie K.
Assignment
Rated 5 out of 5
Clear communication throughout and delivered exactly what was asked for, on time.
Riya S.
Coursework
Rated 5 out of 5
Really helped me understand the topic properly, not just handed me a finished piece.
Tom M.
Assignment
Rated 5 out of 5
Professional, responsive, and the work was properly researched.
Priya L.
Research Paper