I’m a passionate software engineer who loves designing scalable systems, solving complex backend problems, and building products that empower businesses and people.
I focus on clean, maintainable, and production-ready solutions across backend and cloud environments.

• 💻 I specialize in Golang, Node.js (TypeScript & JavaScript), and microservice architectures.
• 🧩 Experienced in building scalable APIs, real-time messaging systems, and background job infrastructures.
• ☁️ I deploy and manage applications using Docker, DigitalOcean, and CI/CD pipelines.
• 🗄️ Strong experience with MongoDB, PostgreSQL, Redis, and message queues.
• 💬 Skilled in gRPC, REST, and event-driven systems.
• 🧭 Currently combining my Surveying & Geoinformatics background with software engineering to build geospatial automation tools.
• 🌐 Deeply exploring Web3 development, smart contracts, token standards, and decentralized architecture, highly interested in how blockchain can power secure, trustless financial and geospatial systems.
• 💡 Constantly learning, experimenting, and open to collaboration on impactful projects.

A full microservices-based lending as a service platform with automated recollection via card/direct debit.
Tech: Go, gRPC, Redis, Asynq, MongoDB, Docker, Fiber, DigitalOcean

• Built automated repayment collection modes (card/direct debit).
• Designed task scheduling with asynq.PeriodicTaskManager.
• Implemented idempotent transaction flows to avoid double charges.

Multi-tenant school platform for managing students, grading, and generating dynamic report cards.
Tech: Go, Redis, Excel/Word Automation, HTML Templates, Docker

• Generated student report cards in Excel and Word formats using dynamic templates.
• Built Redis-based background queue for async report generation.
• Designed notification pipeline for processing completion status tracking.

A CAD integration tool that plots survey coordinates and generates DWG files automatically.
Tech: TypeScript, ezdxf, Python, AutoCAD integration

• Automated the conversion of survey data into CAD-ready formats.
• Implemented scaling modes (1:500, 1:1000, etc.) and layout templates.

End-to-end BNPL platform for merchants and customers.
Tech: TypeScript, gRPC, Fiber, MongoDB, Redis, Docker

• Designed the merchant dashboard, SDK checkout, and approval workflow.
• Integrated settlement logic and webhook-based payment status tracking.

• 🧩 Clean Architecture: I separate domain, application, and infrastructure for scalability.
• ⚙️ Reliability: Implemented idempotent transaction and task handling to prevent double processing.
• 📈 Performance: Designed Redis-based caching and background workers for efficiency.
• 🕸️ Distributed Systems: Comfortable with gRPC microservices and inter-service communication.
• 🔐 Security: Handle authentication, webhook verification, and secure external integrations.

• 🧩 AI-driven Automation: Using ML to automate workflows in finance and education systems.
• 🗺️ Geospatial Intelligence: Applying ML to survey data analysis, terrain mapping, and feature extraction.
• 🤖 LLM Integrations: Embedding large language models into backend services for intelligent interactions.
• 📊 Predictive Analytics: Building models to forecast repayment patterns and student performance.
• ⚙️ MLOps: Studying how to train, deploy, and monitor models in production environments.

• 🌐 Portfolio: Coming Soon
• 💼 LinkedIn: linkedin.com/in/rajman01
• 🐦 Twitter/X: @boy_dev3loper
• ✉️ Email: alaameenraji31@gmail.com

“I build software that works — reliably, cleanly, and at scale.”