I am Robin Mollah, a Senior Software Engineer architecting and building scalable software systems across cloud, backend, frontend, and AI. And probably some stories worth sharing.
Extreme Constraint Engineering Challenges Solved
Delivered software under extreme hardware constraints
100KB Web Server
Built complex web servers running in a 64MB RAM wifi router with custom security layers and TCP tunneling inside tightly constrained Wi‑Fi router environments. (Bonton Connect)
36MB Game Engine
Engineered and optimized a LibGDX framework-based game engine and full open-world game to operate within strict memory and storage limits in a 512MB RAM Android Device. Reworked asset management, minimized runtime footprint, streamlined execution paths, and restructured architecture for stability under hard caps. (71: Hit & Run)
Single digit latency
Engineered and optimized a real-time streaming system to operate under controlled environment in <=9m latency. (Eagle 3D Streaming)
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Ultra large file transfer
Optimized uploading a file from a regular user to distribute it through a complex cloud network facing and solving browser limitations, network constraints, and cloud I/O. >300GB files per upload. Speed increased to ~10x. (Eagle 3D Streaming)
Custom VPN protocol & binary‑level TCP optimization
Designed and implemented a custom VPN communication protocol enabling real-time device-to-device communication applying low-level TCP and binary payload optimizations. (Bonton Connect)
Custom web server protocol
Built a custom webserver protocol for real-time communication between devices through several proxies and binary level optimisations on TCP protocol. (Bonton Connect)
Experience
SaaS Platforms & High-Traffic APIs
Designed and delivered SaaS platforms and backend systems serving millions of requests per day. Owned architecture decisions, technology selection, database design, deployment strategy, and operational monitoring. Onboarding, mentoring and managing engineers
Organizations: Eagle 3D Streaming & Freedom2Hear
Main Tech Stack: Python(FastAPI), MongoDB, PostGres, Kubernetes, Terraform, Redis, Kafka
Data Pipelines at Scale
Designed and implemented data pipelines processing TB-scale datasets in production environments. Ensured throughput, fault tolerance, and long-term maintainability under real operational load. Ran complex analytics on scale with minimum cost.
Organizations: Freedom2Hear
Main techstack: Snowflake, Airflow, Python, MongoDB, PostGres, AWS, GCP
Cloud Infrastructure & Reliability
Architected and deployed cloud-native infrastructure from scratch, including CI/CD pipelines, containerization, monitoring, and autoscaling strategies. Resolved scaling failures, stabilized production environments under load, and reduced infrastructure cost exposure through architectural redesign and optimization.
Organizations: Eagle 3D Streaming & Freedom2Hear
Main techstack: AWS, GCP, Docker, Kubernetes, Terraform and various cloud services.