Online Banking
Rebuilt on Rust
A banking sector company revamped its outdated online banking platform using Rust, Actix Web, and a containerized architecture — achieving 99.99% uptime, handling 40% more concurrent users, boosting user satisfaction by 40%, and cutting operational costs by 20%.
Discuss Your Project →A banking platform held back by legacy web architecture
A company in the banking sector recognized an urgent need to revamp its online banking platform. The existing platform relied on outdated technologies that struggled with scalability and presented numerous security vulnerabilities. These legacy constraints resulted in a subpar banking experience for customers and exposed the company to potential security risks.
What prompted the project
To overhaul the digital banking experience, the client required a modern, scalable architecture that could deliver high concurrency, bank-grade security, and a great user experience — without ballooning operational costs.
High Performance & Concurrency
A robust web application capable of handling a large number of concurrent users without performance degradation.
Bank-Grade Security
Strong security measures to protect sensitive financial data, prevent breaches, and prevent fraud.
Scalability & Reliability
The ability to seamlessly scale alongside a growing user base while ensuring high availability and minimizing downtime.
Modern User Experience
An intuitive, user-friendly interface designed to enhance customer satisfaction.
Cost-Effectiveness
Improved operational efficiency to reduce long-term maintenance costs.
Why an expert partner was required
The development team faced several complex hurdles during the modernization — particularly around legacy integration, concurrency tuning, and regulatory compliance.
What We As Web delivered
We provided a comprehensive architectural overhaul leveraging modern frameworks and containerization — with a careful bridge to the existing legacy systems.
Legacy System Analysis & Documentation
A thorough analysis of the legacy systems to ensure a smooth integration with the new Rust architecture.
Rust & Actix Implementation
Rust's efficient concurrency model + Actix Web Framework to handle massive volumes of simultaneous users without bottlenecks.
Advanced Security Measures
End-to-end encryption, secure authentication, and strict compliance with banking regulations.
Containerized Deployment
Docker for consistent environments + Kubernetes for orchestration, automatic scaling, and self-healing.
Modernized Interface
A responsive, intuitive front-end interface seamlessly communicating with the PostgreSQL-backed backend.
A modern banking platform that scales, secures, and satisfies
The modernized Rust-based web application delivered dramatic improvements across availability, capacity, satisfaction, and cost.
The new architecture delivered a reliable uptime of 99.99%, minimizing downtime and ensuring high availability.
The system successfully handled up to 40% more concurrent users than the legacy platform without slowing down.
Customers reported a 40% increase in satisfaction, driven by faster loading times and a highly intuitive interface.
Operationally, the project cut costs by 20% through optimized resource usage and simplified maintenance.
Banking-grade architecture, end to end
A modern, containerized, observability-first stack — chosen for performance, reliability, and the operational rigor banking demands.
When banking reliability is non-negotiable
An online banking platform that struggles with concurrency, leaks security vulnerabilities, and frustrates customers cannot compete. By rebuilding on Rust with Actix Web, PostgreSQL, Docker, and Kubernetes — and carefully documenting the legacy systems for a smooth integration — we gave this bank a platform that scales, secures, and satisfies at banking-grade reliability.
The result is 99.99% uptime, 40% more concurrent users handled, 40% higher customer satisfaction, and 20% lower operational costs. For any bank running on legacy web architecture, this is what a modern, containerized, banking-grade rebuild looks like in production — fast where it matters, secure where it counts, and reliable by design.