Computer Science & Engineering Student at Bangamata Sheikh Fojilatunnesa Mujib Science & Technology University (BSFMSTU)
Specialized in Enterprise Microservices (Spring Boot 3, Go, FastAPI), Event-Driven Architecture (Saga Pattern), AWS Cloud Infrastructure, and Cross-Platform Mobile Applications (Flutter).

• Core Focus: Designing and implementing scalable, fault-tolerant distributed backends, cloud-native services, and responsive cross-platform mobile applications.
• Cloud & Infrastructure: Actively working with Amazon Web Services (AWS) and preparing for the AWS Certified Solutions Architect – Associate (SAA-C03) examination.
• Backend & Systems: Architecting polyglot systems using Go (Golang), Java 21 (Spring Boot 3, Spring Cloud), and Python (FastAPI) with event-driven pipelines (RabbitMQ Saga Pattern).
• Technical Writing: Regularly publishing cloud computing deep-dives and architectural guides on Hashnode.
• Mobile Engineering: Developing production-grade mobile applications with Flutter, following Clean Architecture and modern state management patterns (GetX, BLoC, Riverpod, Provider), along with native hardware and sensor integrations.
• UI/UX & Product Design: Creating modern, user-centric interfaces and interactive prototypes in Figma.

Dhaka, Bangladesh • Hybrid
Jun 2026 – Present

• Promoted to Software Engineer following impactful delivery as Associate Engineer.
• Architecting scalable enterprise backend services, microservices, and robust APIs.
• Specializing in high-performance backend systems with Java and Spring ecosystem.
• Core Tech: GO, AWS, Core Java, Java Spring Boot, Spring Cloud, Microservices, PostgreSQL.

Dhaka, Bangladesh • Hybrid
Jul 2025 – Jun 2026 (1 year)

• Encompassed full-stack responsibilities delivering production mobile and backend solutions.
• Focused on building resilient, decoupled modules, state management, and API integrations.
• Core Tech: Python, FastAPI, Flutter, GetX, Clean Architecture, RESTful Services.

Dhaka, Bangladesh • Remote
Feb 2025 – Jul 2025 (6 months)

• Engineered a scalable SaaS-based Point-of-Sale (POS) system for SMEs with enhanced modular architecture.
• Collaborated across the full Software Development Life Cycle (SDLC) for mobile and web components.
• Core Tech: Mobile Application Development, Flutter, SDLC, Modular Design.

I actively document my cloud computing journey and architectural insights on robiulsuny.hashnode.dev:

👋 Hello World! I'm Robiul Suny Welcome to my digital space! I am a passionate Software Developer with a strong focus on Cloud Computing, DevO...	AWS Academy Cloud Foundations (Module 03) ক্লাউড কম্পিউটিংয়ের দুনিয়ায় Amazon Web Services (AWS) বর্তমানে সবচেয়ে জনপ্রিয় নাম। কিন্তু আপনি কি জানেন, পৃথিব...
AWS Academy Cloud Foundations (Module 02) ১. ভূমিকা (Introduction) AWS (Amazon Web Services) ব্যবহার করার আগে এর খরচ কীভাবে হিসাব করা হয় এবং বিলিং কীভা...	AWS Academy Cloud Foundations (Module 01) ১. ভূমিকা (Introduction) আজকের তথ্যপ্রযুক্তির যুগে "Cloud Computing" শব্দটি আমরা প্রতিনিয়ত শুনে থাকি। কিন্তু ক...

• Distributed Systems: Saga Pattern (Choreography & Rollbacks), Event-Driven Architecture, Microservices Decomposition.
• Cloud Architecture: High Availability (HA), Fault Tolerance, Decoupled Services, AWS Well-Architected Framework.
• Backend Architecture: Domain-Driven Design (DDD), Repository-Service Pattern, Clean Code Standards.
• Mobile Patterns: Clean Architecture, Separation of Concerns, Reactive State Management (GetX, BLoC).
• Security & Resilience: Defense-in-depth, Role-Based Access Control (RBAC), JWT Rotation, Bcrypt/Argon2 Hashing, Self-Healing Connection Pooling.

• Distributed Consistency in Fintech: Implemented RabbitMQ event-driven Saga choreography in micro-wallet to ensure transactional integrity across multi-service digital wallets with automated compensation and rollbacks.
• Ultra-Low Latency Streaming: Integrated LiveKit WebRTC SFU in instalive to achieve sub-500ms broadcast latency with real-time room webhooks and an automated 3-second unpaid viewer preview timeout.
• Zero-DB-Clutter OTP Engine: Architected an ephemeral OTP verification flow in grandmart using Upstash Redis TTL, eliminating relational database write overhead during registration peaks.
• Smart Subscription Detection Engine: Designed a time-delta and merchant grouping algorithm in Subsync to automatically identify recurring billing cycles (weekly, monthly, yearly) from raw bank transactions.

Backend & Distributed Systems Cloud, DevOps & Tooling Messaging & Streaming

Mobile Development Databases, ORM & Caching UI/UX & Languages

Demonstrated foundation in Data Structures, Algorithms, and System Design through continuous practice:

• 🎯 Target Certification: Preparing for the AWS Certified Solutions Architect – Associate (SAA-C03).
• 🐹 Systems Engineering: Building concurrent, cloud-native services and CLI tooling with Go (Golang).
• ✍️ Technical Writing: Authoring AWS architectural and foundational articles on Hashnode.
• 🤖 AI Engineering: Exploring LLM orchestration and Agent Tool Calling within mobile applications.

Continuous learner committed to expanding language proficiencies and CS fundamentals. Verified coursework and problem-solving metrics on W3Schools Profile:

_{Key Milestones: Go (100% Completed) • C# (100% Completed) • Pandas (Data Analysis)}

• Operating Systems: Windows, Linux (Ubuntu/Debian)
• Cloud & Containers: Amazon Web Services (AWS), Docker, Docker Compose
• IDEs: GoLand, IntelliJ IDEA, VS Code, Android Studio
• API & Testing: Postman, Swagger/OpenAPI, Bruno, Testcontainers
• VCS & Automation: Git, GitHub CLI, GitHub Actions

• Email: robiulsunyemon@gmail.com
• Blog: robiulsuny.hashnode.dev
• GitHub: @robiulsunnyemon
• LinkedIn: Robiul Suny
• NeetCode: LuckyVulture227