Adnan Huseynli

Backend Developer — Discord & community platforms

Summary

Backend developer focused on Discord platforms at community scale. Core developer of Juniper 2019–2025 (1.29M servers and 4.9M users served to date); cut p95 query time from 1.4 s to 18 ms and peak database CPU from 85% to 15%. Founder of Cheterin, an open-source multi-server Discord bot with a web dashboard, and partner developer on Discord Quests for VALORANT. Looking for part-time backend / platform roles in Hungary, the EU, or remote (up to 30 hours per week) alongside full-time CS studies at ELTE.

Experience

  • Juniper

    2019 — 2025

    Core developer — backend, frontend, database

    Python, discord.py, PostgreSQL · GalaxyGate

    • Production bot at scale; to date: 1,291,495 servers, 4,928,753 users, 198M+ commands processed.
    • Cut p95 query latency from 1.4 s to 18 ms (~77x) and peak database CPU from 85% to 15%: found a Seq Scan on deep history pages and season leaderboards via EXPLAIN ANALYZE, moved to keyset pagination (WHERE id < last_seen_id) and added a covering index on (server_id, created_at DESC) INCLUDE (user_id, points).
    juniper.bot

  • Discord Quests × VALORANT (Orbs)

    2026 — Present

    Partner developer — code structure

    • Partnership work on Discord Quests on behalf of VALORANT; designed the code structure of the Orbs connection.

  • Cheterin

    2026 — Present

    Founder & lead developer

    Python, aiohttp, TypeScript, React (Vite), nginx, systemd, GitHub Actions

    • Own system, built and run by me since its founding; authorship is listed in the credits on the sites. Public multi-guild Discord bot with a web dashboard, now on 518 servers: admins enable modules per server in the browser, members use slash commands, each guild is isolated. Open source (Apache-2.0), 358 commits: github.com/Nanda070/Cheterin-Bot.
    • Modules: moderation (logs, antispam, automod, verification, antiraid), levels and XP, economy and shop, giveaways and polls, VALORANT tools (Premier applications, role panels, Customs lobbies). EN/RU interface.
    • Cheterin Lookup: separate public service with its own SPA and API running as an independent process, for resolving Discord IDs and profiles; also hosts Vencord userplugins.
    • ChetMedia: own anime streaming product (catalog and watch), about 270,000 views per day, peak 370,000.
    • CI with pytest and frontend builds on GitHub Actions; deployed with systemd units behind nginx.
    cheterin.onlinegithub.com/Nanda070/Cheterin-Bot

  • Valqauym

    2026 — Present

    Creator, now development team lead

    • Created the project; later handed ownership to another person, who became its public face. I still lead the development team. Authorship is listed in the credits on valqauym.kz.
    • Queues and tooling for the Kazakhstan VALORANT community.
    valqauym.kz

Projects

  • Neptun ELTE

    University project

    Unofficial Flutter client for ELTE Neptun — calendar, marks, mail.

    Flutter, Dart

    github.com/Nanda070/Neptun-ELTE

  • Lumen

    Ongoing

    Local-first Flutter life OS — calendar, tasks, habits, finance. Data stays on device.

    Flutter, Dart

    github.com/Nanda070/Lumen

  • RP-State-Mirror

    Ongoing

    Discord bot and web dashboard for state factions on the Mirror server of GTA5RP, in use by government structures there. Documents, wanted lists, fines, vehicle and uniform registration, personnel audit, forms and appeals. 145 commits.

    TypeScript, discord.js, Next.js, Prisma, PostgreSQL, Docker Compose

    github.com/Nanda070/RP-State-Mirror

  • Sofra

    In progress

    Cloud POS and back-office platform for restaurants and cafés in Azerbaijan: cashier terminal, waiter app, kitchen display, inventory, QR table ordering, multi-tenant, Open API. UI in AZ, RU, TR and EN.

    Next.js, React, TypeScript, Prisma, PostgreSQL, Tailwind, Auth.js

    github.com/Nanda070/Sofra

  • GTA5RP-Wiki-API

    2026

    Unofficial TypeScript client for the GTA5RP wiki: live map and property snapshots. MIT, documented in EN and RU.

    TypeScript, Node.js, GitHub Actions

    github.com/Nanda070/GTA5RP-Wiki-API

  • ASTRA plugin suite

    Ongoing

    Four Minecraft server plugins (SMP, build, operator and IP tools) for live servers.

    github.com/Nanda070/AstraSMP

Skills

Primary
Python, TypeScript / Node.js, Go, Java, SQL (PostgreSQL)
Familiar
Dart (Flutter), C#, C++
Platforms
Discord API, Linux, nginx, systemd, GitHub Actions, React
Focus
Database performance, bot architecture, community infrastructure

Languages

Azerbaijani
Native
Russian
Native
German
C1
English
B2 (IELTS)
Turkish
B2

Education

Eötvös Loránd University (ELTE)

2026 — 2029 (expected)

BSc, Computer Science · Faculty of Informatics · Budapest, Hungary