Engineering
Secure
Infrastructure.

I am Nrishinghananda Roy, an Infrastructure Engineer specializing in AWS, Terraform, and Kubernetes.

I architect secure cloud infrastructure using Infrastructure as Code (IaC), building environments that scale predictably under heavy load.

I take end-to-end ownership of reliability and security. Through zero-trust networks and resilient CI/CD pipelines, I empower engineering teams to ship rapidly and friction-free.

Nrishinghananda Roy
Available for Hire

Engineering Impact

My work focuses on improving system performance, reducing operational overhead, and building reliable infrastructure that teams can depend on.

Distributed Cloud Infrastructure

Provisioned and managed distributed infrastructure across more than 60 nodes using AWS and Terraform, introducing Infrastructure as Code, centralized monitoring with Prometheus and Loki, and automated deployments through GitHub Actions.

Globe
60+ Node Distributed Network
Tettaform
Infrastructure as Code
Git merge
Observability & CI/CD
AWS Terraform DevOps
Database Architecture

LSM Tree Database

Engineered a persistent Key-Value storage engine from scratch in Rust. Implemented core database internals including Write-Ahead Logging (WAL) for absolute crash recovery, Bloom Filters, LRU block caching, and an arena-allocated SkipList to achieve zero-cost abstractions.

Performance
Lock-Free SkipList
Reliability
Write-Ahead Logging (WAL)
Rust Storage Engine Systems Programming
Rust

Document Processing with Rust

Architected and implemented a concurrent document generation microservice in Rust using the lopdf and docx-rs libraries. Replaced legacy Python scripts with a highly reliable service capable of filling templates, generating PDF and DOCX documents, and programmatically placing critical elements like signatures.

Server
Concurrent PDF Processing
File text
Custom PDF & DOCX Parsing
Rust Automation Tooling

Technical Capabilities

01

DevSecOps & Infrastructure

I approach infrastructure with a security-first, reliability-driven mindset. Managing cloud assets using AWS and Terraform, I incorporate strict access controls and robust CI/CD pipelines.

02

Rust Backend Development

I architect performant backend services in Rust (Axum, Tokio). My focus is delivering software that handles concurrency safely, remains predictable under load, and scales efficiently.

03

Python Tooling & Automation

I heavily utilize Python to build powerful internal toolings, high-performance web scrapers, and automated DevSecOps workflows, drastically reducing manual operational effort.

04

Observability & Reliability

From capturing detailed application traces to monitoring cluster health, I implement centralized logging and metrics using Prometheus, Loki, and tracing frameworks to ensure complete system observability.

05

Product & Business Awareness

I understand the business context behind the systems I build. I take full ownership of features, making practical technical decisions that align with real product goals and fast-paced startup timelines.

06

Independent Execution

I work comfortably with deep ownership and minimal supervision. Once the problem is clear, I plan the implementation, communicate progress, and deliver reliable solutions end-to-end.

Professional Journey

Current

Freelance Engineer

Nov 2024 - Present

Freelance

  • ISKCON Phoenix (USA) : Developed and shipped a cross-platform mobile application (React Native, Expo) to the Apple App Store, managing the full release lifecycle including App Store review resolution and production deployment.
  • Built and published an open-source LSM-Tree key-value storage engine in Rust, available as both a library and CLI tool on crates.io
  • Delivered Python and TypeScript automation coaching to a QA engineer, covering Cypress and pytest frameworks for test automation workflows.

Software Engineer

Nov 2023 - Oct 2024

Codefy GmbH | Remote, Germany

  • Eliminated a critical performance bottleneck by replacing a third-party Java microservice with an in-house Rust service, rebuilding 21 APIs with Rust (Axum) and PostgreSQL. Reduced response times from 3+ seconds to <200ms, enabling business growth without additional infrastructure costs.
  • Reduced manual operational effort by 60% and accelerated document generation by 7x, automating legal workflows by rewriting legacy Python pipelines in Rust with custom PDF/DOCX parsing and S3 uploads.
  • Built end-to-end features for a legal case management system used by 20+ lawyers. Worked extensively across React/TypeScript frontend and Rust (axum) backend to ship client intake, document automation, case tracking, and sales workflows.
  • Improved React frontend performance by 30% for high-frequency workflows by implementing advanced caching strategies with Tanstack Query and refactoring component architecture.

DevOps Engineer

Apr 2023 - Oct 2023

Dhiway | Remote, India

  • Provisioned and managed a globally distributed network of 60+ blockchain nodes using Terraform and AWS EC2, enabling reliable production infrastructure across multiple regions.
  • Configured and maintained Prometheus and Loki observability stacks to monitor node health, latency, and log aggregation across the distributed network.
  • Built CI/CD pipelines using Github Actions to automate security scanning and node provisioning, reducing manual deployment errors and operational overhead.
  • Executed a full cloud migration from AWS to GCP, maintaining infrastructure parity while minimising service disruption.

Frontend Developer

Jan 2022 - Mar 2023

Trustforum | Remote, France

  • Built a scalable component system using React and TypeScript for an early-stage community platform.

Engineering Showcase

LSM-Tree Key-Value Database

GitHub ↗

Engineered a persistent Key-Value storage engine from scratch in Rust. Replaced traditional database wrappers with a custom engine built strictly on zero-cost abstractions, multi-level compactions, and an arena-allocated SkipList.

Core Architecture Implemented

Lock-Free SkipList MemTable Write-Ahead Logging (WAL) Bloom Filters LRU Block Caching Snappy Prefix Compression
Project Screenshot: Jagannath Ratha Yatra App
React Native TypeScript Firebase

Jagannath Ratha Yatra App

App Store ↗

Shipped to App Store in weeks with zero prior mobile experience. Handles festival info, real-time volunteer management, and role-based auth. 100+ downloads.