Engineering
Resilient
Architecture.

I am Nrishinghananda Roy, a Rust Engineer building high-performance backends, storage engines, and developer tools.

I turn complex systems problems into clean, composable Rust code that scales without surprises. Currently seeking remote Rust roles at startups where performance and reliability are not optional.

Nrishinghananda Roy
Available for Hire
Core Focus:
Rust
Distributed System
AWS

Engineering Impact

I bridge the gap between high-level application code and low-level systems internals. Here is the impact of a first-principles engineering approach.

Distributed Systems Engineering

Architected the migration of monolithic Java legacy services into highly concurrent, distributed Rust microservices. This infrastructure shift slashed global response times, stabilizing p95 latencies consistently under <200ms at scale.

15x Faster
<200ms Latency
Rust Performance Microservices

Database Internals & Storage

Engineered a persistent LSM-Tree Key-Value storage engine from scratch in Rust. Built deep system internals including an Arena-backed lock-free SkipList MemTable, Write-Ahead Logs (WAL) for crash durability, and size-tiered multi-level compaction.

  • Lock-Free Concurrency
  • Write-Ahead Logging
  • SSTable Compaction
Rust Database Internals Systems Programming

High-Efficiency Data Processing

Engineered zero-allocation data parsing binaries in Rust to entirely replace slow, complex legacy Python pipelines. Achieved extreme parallelization and memory safety, boosting enterprise document processing efficiency by 60%.

60% Efficiency Boost
Zero-Allocation Parallelism

Technical Capabilities

01

Rust Backend Engineering

Building production-grade APIs and services in Rust using Axum and the Tokio async runtime. Memory-safe, zero-cost abstractions that eliminate entire classes of bugs before they ever reach production.

02

Systems Programming

Designing storage engines, custom data structures, and low-level I/O pipelines from scratch. Every allocation is intentional, every byte layout is deliberate, every hot path is profiled.

03

Developer Tooling

Building CLI tools, custom parsers, code generators, and internal dev infrastructure that replaces fragile scripts with rock-solid compiled binaries. Making engineers faster is a force multiplier.

04

Startup-Speed Execution

Comfortable owning entire features end-to-end in fast-moving environments. Ship first, iterate fast, maintain quality. I thrive in small teams where autonomy and bias for action matter most.

05

Problem Decomposition

Breaking ambiguous, complex problems into clean, composable solutions. Whether it's a novel algorithm, a tricky concurrency bug, or an architectural decision, I reason from first principles.

06

Performance Engineering

Profiling, benchmarking, and squeezing maximum throughput from every system. From lock-free data structures to cache-aware memory layouts, I obsess over the critical path.

Professional Journey

Current

Software Engineer

Nov 2024 - Present

Freelance | Remote

  • ISKCON Phoenix (USA)
    Owned the full lifecycle of a cross-platform mobile app. Delivered a performant React Native solution to the App Store, successfully navigating strict review guidelines and implementing secure role-based authentication.
  • EdTech Platform
    Architected a high-assurance backend for medical admissions using Rust (Axum) and PostgreSQL. Implemented strict request validation and secure PII handling protocols to ensure compliance with data privacy standards.

Software Engineer

Nov 2023 - Oct 2024

Codefy GmbH | Remote, Germany

  • Spearheaded a critical system migration by rewriting slow, legacy Java microservice entirely in Rust. This massive architectural shift dramatically improved API throughput, dropping p95 latencies down to <200ms from 3+ seconds.
  • 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.
  • Improved React frontend performance by 40% for high-frequency workflows by implementing advanced caching strategies with Tanstack Query and refactoring component architecture.
  • 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.

Associate Software Engineer

Apr 2023 - Oct 2023

Dhiway | Remote, India

  • Infrastructure as Code: Provisioned and managed a distributed network of 60+ nodes globally using Terraform and AWS EC2.
  • Observability: Configured and maintained Prometheus and Loki stacks to monitor system health, node latency, and log aggregation across the distributed nodes.
  • CI/CD: Implemented CI/CD pipelines using GitHub Actions to automate the deployment process, ensuring reliable and consistent application rollouts.
  • Security: Implemented security best practices, including regular security audits and vulnerability assessments, to ensure the security of the distributed nodes.

Frontend Developer

Jan 2022 - Mar 2023

Trustforum | Remote, France

  • Architected user interfaces and Vue 3 components to establish a clean foundation for rapid feature delivery.
  • Reduced technical debt by introducing modular, reusable components, assisting in cutting development time by ~30%.

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.