Back-end Development | Out of the Box Systems

Back-end Development

We are a team of talented and highly-skilled back-end developers focused on the development of the server part of the program, processing, saving data, and integration with other services, basic understanding of algorithms, data types, and theory of computation. So we can implement your product at the highest level.

Technology stack: Rust, JavaScript, Node.js, API, Software Architecture & Design, Functional Programming, Virtual Machine, Algorithm Development

We are experienced on:

- Design and develop web backend in Rust.
- Development from scratch / custom development.

Our main stack include but not limited:

- Programming languages: Rust, GPU, JavaScript, NodeJS, PHP.
- Web servers: Apache, Nginx, Microsoft IIS.
- Databases: MySQL, PostgreSQL, MongoDB.
- Backend Frameworks: Laravel Expert, Codeigniter, Frappe, Rocket, Hyper.
- Crates: rocket, axum, hyper, reqwest, warp, tonic.

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Portfolio

Google Maps distance calculator

Google Maps distance calculator

Competencies: google_maps, async, serde, backend development, Rust

The project is a modern financial switch using Rust, an open source platform to unify and integrate the growing diversity of payment options across the globe.
It connects the merchants and the financial ecosystem players like payments processors, payments networks and banks.
It’s related to building the UPI platform, BHIM, as well as the extensively used UPI Common Library, in partnership with NPCI.
We created a payment application from scratch that enables end-to-end payment transactions.
We worked on code quality improvement and investigated the appropriateness of using some databases, including Diesel.
We realized tracing and observability; we used OpenTelemetry for this.
Also, we’ve worked with grpc tonic and used actix-web for Back-End Development.

Microservice Development

Microservice Development

Competencies: Neo4j, Amazon Web Services, Google Cloud Platform, Rust, Microservice

А shop platform layered application using Rust.
It consists of 3 layers: database, service, and interface.
Each layer handles its own work and is split up into microservices.
The database layer stores data and synchronizes it with other database services.
The service layer handles logic and recourse-heavy manipulations such as verifying payment information, hashing the data, or handling chat communication.
The interface layer acts as a shield: it checks user authorization and role, filters methods by permissions, and handles access token generation/verification.

Schnorr signature

Schnorr signature

Competencies: cryptography, rust, fuzzing

The task was to create a distance calculator for Google maps.
So the app calculates the distances to nearby points of interest like grocery shops, bars, etc.
We used the google_maps crate for the ability to communicate with Google Maps API, dotenv for reading Google API Key from a file, and serde/serde_json for deserializing points of interest.