I am Nrishinghananda Roy, a Rust Software Engineer. I help growing startups scale their backend infrastructure with confidence.
If your current stack is buckling under load or inflating your cloud budget, I rewrite those critical bottlenecks into predictable, lightning-fast Rust services.
I rely on a battle-tested stack. I build concurrent HTTP APIs and gRPC services leveraging Tokio, Axum, and Tonic, and I provision rock-solid cloud infrastructure on AWS using Terraform.
Selected work in systems programming, cloud infrastructure, and production Rust engineering.
Built a persistent key-value storage engine from scratch in Rust, published on crates.io as a library and CLI binary. Implemented Write-Ahead Logging for crash recovery, Bloom Filters, LRU block caching, and an arena-allocated SkipList. The same architecture underpins production storage systems like RocksDB.
Replaced a Java microservice with Rust on Axum and Tokio, rebuilding APIs and cutting response times from 3+ seconds to under 200ms. Automated legal document generation with custom PDF and DOCX parsing in Rust, reducing manual effort by 60% and accelerating processing 7x.
Provisioned and operated a fleet of 60+ global nodes using Terraform and AWS EC2. Configured Prometheus and Loki to monitor node health and log aggregation across all regions. Built GitHub Actions pipelines for automated deployment and security scanning.
I build lightning-fast async backends using Tokio, Axum, and Tonic. By prioritizing zero-cost abstractions and memory safety, I help teams eliminate performance bottlenecks, cutting API response times from seconds to milliseconds under heavy load.
I design and manage resilient cloud environments on AWS and GCP. Using Terraform, I deploy infrastructure as code (IaC) and set up GitHub Actions to automate CI/CD pipelines, security scanning, and reliable deployments.
I build custom storage components from first principles. I have implemented Write-Ahead Logs, MemTables, Bloom Filters, and lock-free data structures in Rust, demonstrating a deep, source-level understanding of how production data systems like RocksDB function under the hood.
I operate Prometheus and Loki stacks in production to monitor fleet health, track API latency, and aggregate logs. I ensure comprehensive observability so that engineering teams can proactively diagnose issues before they affect end-users.
I am an active contributor to tools like Rust Clippy. I view rigorous code review and strict linting as essential team practices. I prefer studying production codebases over surface-level tutorials to make grounded, pragmatic architectural decisions.
I operate independently across remote teams in the US, Europe, and India. I take full ownership from the initial system design to final production deployment, focusing on clear, asynchronous written communication and reliable project delivery without requiring micromanagement.
Freelance
Codefy GmbH | Remote, Germany
Dhiway | Remote, India
Trustforum | Remote, France
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.
Shipped to App Store in weeks with zero prior mobile experience. Handles festival info, real-time volunteer management, and role-based auth. 100+ downloads.