Backend Development Studio

We Build
the Backend
Behind Your Product.

Bots, APIs, automation and scrapers. We build the backend infrastructure that keeps your product running. Python specialists who ship clean and reliable code.

View Work

devlores_api.py

# Production-ready Python backend

# Devlores — devlores.com

from fastapi import FastAPI, Depends

from aiogram import Bot, Dispatcher

app = FastAPI()

bot = Bot(token=config.TOKEN)

@app.post("/webhook")

async def handle_webhook(

data: WebhookRequest

await bot.send_message(

chat_id=data.user_id,

text=format_signal(data)

)

return {"ok": True}

# Running in production.

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What We Do

Services

Python backend specialists. Clean code that ships on time and holds up in production.

Telegram Bots

Bots with real features. Subscriptions, payments, alerts and custom logic. We have shipped bots with hundreds of active users.

API Development

REST APIs with FastAPI and PostgreSQL. Fast, documented and ready to scale from day one.

Automation

Stop doing things manually. We build automations that run while you sleep. From simple scripts to full multi-step pipelines.

Web Scrapers

Reliable data extraction at scale. Anti-detection, proxy support, structured output and scheduled runs with monitoring.

Integrations

Connect your tools. Payment gateways, third-party APIs, webhooks and CRMs. If it has an API, we can connect it.

Data Processing

Raw data in, clean structured output. Pipelines that transform, aggregate, store and deliver data where it needs to go.

Dashboards

Visual interfaces on top of your data. We connect scrapers, databases and pipelines to clean dashboards so you can actually see what is happening in your system.

AI Integrations

We connect OpenAI and Claude into your existing systems. Intelligent agents, document processing, smart bots and any workflow that benefits from AI.

Database Design

Schema design, query optimization and database management. We build structures that are fast now and easy to extend later.

Ready to Go

Fixed Packages

Clear scope and price. Pick a tier and we get started right away.

Telegram Bot

Custom bot from scratch. Commands, logic and deployment included.

Starter

Up to 5 commands, 5 days

$75

→

Standard

Up to 15 steps, 10 days

$200

→

Advanced

Up to 30 steps, 2 platforms, 21 days

$500

→

Data Pipeline

Automated data collection, processing and delivery on a schedule. Dashboard included on Advanced tier.

Starter

Single source, email delivery, 5 days

$75

→

Standard

Multi-source, Sheets sync, 10 days

$200

→

Advanced

Full pipeline with DB, API layer and dashboard, 21 days

$400

→

Web Scraper

Clean data extraction from any website. JS-heavy sites handled.

Starter

1 site, up to 100 pages, 3 days

$50

→

Standard

Up to 3 sites, 500 pages, 5 days

$100

→

Advanced

Up to 5 sites, 1000 pages, scheduling, 7 days

$200

→

Our Work

Projects

Built and shipped. Every project below is live or delivered to a client.

Live Product

Priceint

Developer & Product Owner

Full-stack SaaS platform that monitors competitor product pages 24/7 and sends instant Telegram alerts when prices change. Built from scratch with subscription billing, team workspaces, price history charts, XLSX export and a full admin panel. Live in production.

PythonFastAPIPostgreSQL PlaywrightaiogramSaaS

Visit Project →

Live Product

CryptRadar

Developer & Product Owner

Full cryptocurrency monitoring platform with a Telegram bot serving real users. Tracks live prices, monitors whale transactions, sends automated alerts and supports free and PRO subscription tiers with payment processing. Built and maintained end to end.

PythonaiogramFastAPI PostgreSQLWhopCoinGecko APIAutomation

Visit Project →

Live Product

n8n Competitive Intelligence Pipeline

Full-stack Developer

Built for Priceint, a live SaaS platform. Every Monday at 9:00 AM, this automation gathers a week of competitor pricing data, analyzes it with Claude AI, and delivers insights via email, dashboard, and Telegram. Uses parallel processing to generate HTML reports and structured dashboard data, references previous reports for trend continuity, and includes retry logic, failure alerts, and automatic data validation. Replaces hours of manual competitor analysis with actionable pricing intelligence.

n8nClaude AISMTP Telegram APIAutomation

Delivered

PDF Q&A Bot

Python Backend Developer

Telegram bot that lets users upload PDFs and ask questions using Claude AI. Auto-summary on upload, streaming responses, OCR for scanned documents and conversation memory per session.

PythonFastAPIClaude APIPostgreSQLRAG

Delivered

Job Monitor

Python Developer & Automation Engineer

Automation system that monitors remote job listings daily, filters by keywords, stores matches in PostgreSQL and delivers a clean HTML email digest every morning. Handles JavaScript-rendered boards with Playwright.

PythonPlaywrightFastAPIPostgreSQLAPScheduler

Delivered

AI Writing Agent

Developer

Writing agent that checks its own output against defined criteria and rewrites anything that does not pass. Uses Claude API with a FastAPI backend. Rules defined in a plain text file.

PythonClaude APIFastAPIAI Agents

Delivered

Invoice Generator API

Backend Developer

Backend API that generates professional PDF invoices and sends them via email in a single API call. Automatic numbering, tax calculation and full invoice lifecycle management including draft, sent and paid states.

PythonFastAPIPostgreSQLDocker

Delivered

Price Tracker

Backend Developer

Backend API that tracks product prices from any website and sends real-time Telegram alerts on changes. Handles JavaScript-heavy sites, stores full history in PostgreSQL, syncs automatically to Google Sheets and includes a dashboard for viewing price history and trends.

PythonFastAPIPostgreSQLPlaywrightGoogle Sheets

Technology

Tech Stack

Tools we use every day. Chosen for what works in production.

🐍

Python

⚡

FastAPI

🐘

PostgreSQL

📨

aiogram

🤖

OpenAI / Claude

🐋

Docker

🕷️

Playwright

🔗

REST APIs

⏱️

APScheduler

🐧

Linux / VPS

🔧

Git

🔔

Webhooks

Process

How We Work

No surprises. You know what is happening at every step.

Discovery

You tell us what you need. We ask the right questions to understand the scope, timeline and any technical constraints before touching any code.

Proposal

We send a clear breakdown of what gets built, how long it takes and what it costs. No vague estimates. No surprises after you say yes.

Development

We build and keep you updated throughout. You can see progress, ask questions and give feedback at any point. We keep things simple and well documented.

Delivery

Clean code, documented and deployed. We make sure everything is running correctly before we close the project. Source code is always included.

Verified

Credentials

Tested and certified skills. Not just listed — verified by third parties.

HackerRank

Verified

Problem Solving

Passed HackerRank's Problem Solving certification covering data structures and algorithms.

Issued March 2026 ID: 363BD00FB4CB

HackerRank

Verified

Python

Passed HackerRank's Python skill certification covering core Python concepts, data structures and problem solving.

Issued March 2026 ID: 384EF179BAF9

BUTS Training Center

Verified

Python Programming

Completed professional training program covering Python programming fundamentals and applied development.

Issued December 2025 ID: 113943

We Build
the Backend
Behind Your Product.

Services

Fixed Packages

Projects

Tech Stack

How We Work

Credentials

Online Profiles

Got something to build?

We Build the Backend Behind Your Product.

Services

Fixed Packages

Projects

Tech Stack

How We Work

Credentials

Online Profiles

Got something to build?

We Build
the Backend
Behind Your Product.