TypeScript, Python, PostgreSQL. Payments, auth and integrations.

Sole backend engineer behind a production operations platform (CRM + LMS) for an online exam-prep school, and designer of high-concurrency transaction cores.

Baku, UTC+4 · full overlap with EU hours, mornings with US East · Remote contract, 30 h/week, open to more.

Ismail Iusifli
Focus
Backend · Payments · Auth · Integrations
Location
Baku, Azerbaijan · UTC+4

Work

Production systems & open-source cores

Billing, payments and auth that have to stay correct under concurrency.

Flagship Production2026

School Platform: Landing + CRM + LMS

Production monorepo for an online exam-prep school · Sole engineer · Since March 2026

Status
Production
Users
Daily use
Next.js (App Router)TypeScriptPostgreSQLPrisma

Currently

Building an LMS/CRM for a multi-branch test-prep center in Baku as solo developer.

Smaller work

Sprint / Hackathon2026

CLEANROOM: Prompt-Injection–Resistant Autonomous Trading

Structural Isolation Trust Boundary · 0/15 Hardened ASR · Alpaca × lablab.ai Hackathon

Hardened ASR
0 / 15 (0%)
Naive Baseline ASR
5 / 15 (33%)
PythonGemini LLM (Zero-Tools)Pydantic (Strict Schemas)FastAPI (SSE Streaming)+3
Automation2025

Telegram enrollment bot

Handled enrollment intake, payment reminders and FAQ for an exam-prep school, running on a VPS.

PythonAiogramLinux VPS

Stack

Backend

TypeScriptPythonNode.jsNext.js (App Router)FastAPIRESTWebhooks

Data

PostgreSQLIsolation levels & row locksPrismaS3-compatible storage

AI

OpenAI-compatible LLM APIsStreaming responsesStructured output (Zod)

Infra & Testing

DockerUbuntu VPSCaddysystemdGitHub ActionsVitestpytest

Need a backend that stays correct?

Billing, payments, auth and integrations — designed, tested and run in production.

Open to remote contract work · 30 h/week, open to more.