Fintech · Web3 · Highload Engineering

Code that moves business

We build platforms, mobile apps, payment integrations, Web3 bridges and APIs of any complexity. Scalable digital products engineered for performance, security (PCI DSS, GDPR) and business outcomes.

Expertise:

Services

Full-cycle digital product development: from business analysis and consulting to building complex systems, web applications and AI solutions. We provide support, scaling and automation across the entire lifecycle.

Systems & Web Development

We design and build highload web platforms and enterprise systems on modern architectures — from idea to production.

  • Microservices
  • React/Vue
  • Node.js/Go

Digital Maintenance

Monitoring, updates and technical support for your products — stable systems, around the clock.

  • 24/7 monitoring
  • Updates
  • Backups

Analysis & Consulting

Audits, technology selection and architecture decisions that cut risk and speed up delivery.

  • Audit
  • Architecture
  • Optimization

AI Solutions & Implementation

Chatbots, RAG systems and ML models that automate processes and boost business efficiency.

  • RAG & LLM
  • NLP
  • Computer Vision

Pipelines & Automation

CI/CD, infrastructure as code and test automation — fast, reliable code delivery.

  • CI/CD
  • Docker/K8s
  • IaC

Fintech & Payment Solutions

Payment integrations, Web3 bridges and PCI DSS compliance for fintech products of any complexity.

  • Stripe/PayPal
  • Web3
  • PCI DSS

API & Microservices

Fault-tolerant REST/GraphQL APIs and microservices with clear documentation and versioning.

  • REST/GraphQL
  • Swagger
  • Rate limiting

Mobile Applications

Native and cross-platform apps for iOS and Android, built with UX and security in mind.

  • Swift/Kotlin
  • Flutter/RN
  • App Store/Google Play

Our products

In-house products: a mobile infrastructure toolkit for DevOps and a SaaS platform for waste-management operators — contract maps, registries and field control in one ecosystem.

MInfra app logo
In-house product · Android

MInfra — my infrastructure

A mobile infrastructure control center: domain and SSL expiry tracking, DNSBL IP checks, SSH/SFTP, quick commands, server metrics and network tools. Data stays on your device only.

  • Domains & SSL
  • SSH / SFTP
  • Monitoring
  • Local & PIN
  • MTR · DNS · ports
TKO Map platform logo
In-house product · SaaS · Web + Android

TKO Map — waste contract map

A multi-tenant SaaS for waste-management operators: a 2GIS map of buildings, contracts and clients, bulk Excel import, waybills and a mobile app for field agents. Per-organization data isolation, roles and SSO for enterprise clients.

  • 2GIS map & statuses
  • Excel import
  • Buildings & contracts
  • Waybills
  • RBAC & SSO
  • Android field app
ChatBot Builder platform logo
In-house product · SaaS · RAG + AI + Tools

ChatBot Builder — an AI assistant with reasoning and tools

Not just a chatbot answering from a knowledge base. It's an AI assistant that thinks, searches and acts: ingests your documents, builds a vector index, understands context and calls tools — APIs, databases, external services. A widget on your site in 5 minutes. Every answer comes with sources and links.

  • RAG pipeline: documents → chunks → embeddings → search
  • Multi-LLM: OpenAI, Anthropic, Gemini, vLLM, local models
  • The agent acts on its own
  • Widget: one line of code — AI on your site
  • Upload PDF, DOCX, TXT, Markdown + web crawling
  • Hybrid search
  • White-label: your colors, logo, domain
  • Multi-tenant: data isolation, RBAC, SSO
  • SSE streaming: the answer appears word by word

Why pirondev

Engineering expertise proven on real projects in Fintech, Highload and Enterprise. Team leadership and standards that make development 4.4x faster.

Fintech leadership

Experience delivering payment gateways, government-API KYC, Web3 bridges. ISO, PCI DSS, GDPR standards.

High performance

CUDA SDK for accelerated computing, horizontal scaling on AWS, Kafka, ClickHouse.

Full cycle & architecture

From idea to support. Microservice architecture design, auto-scaling, monitoring (Prometheus/Grafana).

Technologies

A modern stack for reliable digital infrastructure.

Java/Kotlin
Ruby/Rails
Go
C#/.NET
React/Next
Node.js
PostgreSQL
ClickHouse
Docker/K8s
AWS
Kafka
Web3
CUDA
Stripe/PayPal
PCI DSS

Frequently asked questions

A quick overview of what Piron Dev does and the products we build.

What services does Piron Dev provide?

Piron Dev builds fintech solutions and payment integrations (Stripe, PayPal, Apple/Google Pay, PCI DSS), designs APIs and microservices (REST, GraphQL, gRPC), creates mobile apps (iOS, Android, Xamarin, Kotlin) and Web3/blockchain solutions — bridges, smart contracts, crypto payment integration.

What is MInfra?

MInfra is a mobile Android app for DevOps engineers: domain and SSL certificate expiry tracking, DNSBL IP checks, an SSH/SFTP client, server metrics and network utilities (MTR, DNS, port scanning). All data is stored locally on the device.

What is TKO Map?

TKO Map is a multi-tenant SaaS platform for waste-management operators: a registry of buildings on a 2GIS map, contracts and clients, bulk Excel import, waybills and a mobile app for field agents. Supports per-organization data isolation, roles and SSO.

What is ChatBot Builder?

ChatBot Builder is a SaaS platform for building AI assistants with a RAG pipeline and support for multiple LLMs (OpenAI, Anthropic, Gemini, vLLM, local models). The assistant ingests documents, builds a vector index and calls external tools and APIs. Embeds into any site with one line of code.

Does Piron Dev work with Web3 and crypto payments?

Yes. Piron Dev builds bridges for moving funds into Web3, smart contracts and crypto payment integration alongside classic payment systems (Stripe, PayPal, Apple/Google Pay).

How do I contact Piron Dev?

Via the form on this site, by email at admin@pirondev.rbel.info or on Telegram @binding_pry.

Get in touch

Let's discuss your project: a payment integration, Web3, a mobile app or an API.

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Company details

IE Pavel Efimenko

Registration No.: 194032002

Account: BY35PJCB30130928361000000933

SWIFT: PJCBBY2X

Bank: JSC "Priorbank", V. Khoruzhey Str. 31A, 220002 Minsk, Republic of Belarus