Mykola Andrieiev

Unity & Flutter developer

Unity Developer, Octo Games

October 2023 - July 2025

    Developed visual novels on Steam using Unity (C#). Responsible for all technical aspects of the game and preparing builds for release.

    Led four simultaneous teams. Monitored deadlines and workload for additional staff.

    Stack: Unity (C#), Steamworks.NET, Naninovel.

  • Lust Horizon - card collection game like a Heartstone. Implement third-party SDK with native bridge, WebGL development, hard optimisation with addressables, multi-threading.
  • SEX Route 69 - significant improvement in mini-games with races.
  • SEX Sport College - polishing previous features.
  • Sex, Camera, Action! - integrate simple cooking minigame.
  • Hot & Lewd: Miami - integrate racing minigame like a Gran Turismo.
  • Step-Sister's Pussy - polishing previous features.
  • Orgasm Academy - integrate new global feature "Phone" and reputation system.
  • Sex Detective - integrate detective minigame like a Alan Wake.
  • SEX Massage - default visual novel.

Unity Developer, LongRiver Team.

March 2023 - April 2023

    Participated in a Unity (C#) game jam: fully responsible for all mechanics implementation, procedural level generation, FPS optimisation, and 2D physics.

    Grow Down - hyptonic root simulator. 1st place in the ‘Best disclosure of the theme’.

    Stack: Unity (C#), 2D Physics, ScriptableObjects, Object Pooling, Profiler.

  • Procedural generation - tile-based level algorithm with difficulty control and balance.
  • Optimisation - pooled objects, Sprite Atlas, Unity Profiler, seamless transition between scenes.
  • 2D physics - Rigidbody2D, Colliders, collisions.
  • itch.io

Unity Developer, Pixode

September 2022 - March 2023

    As part of a large product team (20+ people), I developed and maintained the client side of a casual puzzle game on Unity (C#). I implemented online matches, in-app purchases, base building, analytics, and fixed bugs and trained new players.

    Soul Battles - puzzle game, Tetris-like.

    Stack: Unity (C#), Firebase, Facebook Auth.

  • PvP steal resources - opponent selection via REST API, game state synchronisation.
  • Player base - construction and upgrade system.
  • IAP & Analytics - Firebase and Facebook integration.
  • UI/UX flow - animated pop-ups, screens, rewards.
  • Bug fixes - crash and logic investigation, legacy code refactoring.

Flutter Developer, WEZOM

February 2021 - October 2022

    Developed cross-platform client applications on Flutter (Android, iOS). Implemented complex UI/UX, offline modes, caching, integration with REST/GraphQL, camera and GPS support. Participated in internal B2B solution projects.

    Stack: Flutter, BLoC, Dio, Hive, Firebase, camera, background, geolocation, push notifications.

  • EasyLoad TMS - app for planning routes for long-distance drivers with changes in cargo and tracking the condition of the vehicle and cargo. Route scheduling, cargo photo checklists from the camera, data synchronisation when connection is restored.
  • Tracker for agronomists - a series of applications for tracking the progress of farm fields and the state of machinery. Offline mode, dynamic forms, data synchronisation, camera, verifications.
  • MyService - app for recording car repair service. Dynamic forms, data synchronisation.
  • Myastoria - catalogue for shopping and viewing recipes. Catalogue screens, shopping carts, payments, recipes, map of nearby stores.
  • Delivery Groups - app for creating and managing parcels. Data synchronisation, offline mode, map rendering, GPS.

Mobile Developer, Sandwich Inc.

August 2018 - August 2021

    At a start-up, I developed casual and hyper-casual games using Unity (C#). Later, I switched to Flutter and brushed up on NodeJS.

  • Magic 8-ball - Funny game with random answers after shake phone. Unity/C#. Animations, physics, haptic feedback, AdMob.
  • Coin Flip - Funny coin flipping game. Unity/C#: 3D coin physics, haptic feedback, AdMob.
  • Bip WatchFace - catalogue of visual firmware. Flutter (REST, Hive): smooth image loading, offline gallery of favourites, collection of like statistics.
  • Card Bin Checker - QoL app. Flutter (Dio, REST): integration with third-party services via REST API.
  • Telegram RPG - text-based RPG in a bot. NodeJS (Telegraf, PostgreSQL): story branches, progress saving.