Senior Game Designer

7 days ago


Ho Chi Minh City, Ho Chi Minh, Vietnam Prime Tech Solution Company Limited Full time $80,000 - $120,000 per year

About the Role

We are looking for a highly creative and data-driven 
Senior Game Designer
 with strong experience in 
Casual/Hyper-Casual Puzzle & Sorting games
. You will own the full game design process — from conceptualization, core gameplay mechanics, puzzle design, monetization strategy to live-ops optimization — ensuring product quality that can scale globally.

Key Responsibilities

  • Lead game concept creation and define 
    core mechanics
     for puzzle/sorting games.
  • Design 
    game flow
    , levels, difficulty curve, UX game loops and meta progression (rewards, missions, events, etc.).
  • Collaborate closely with Stakeholders, PM, Art, and Engineering teams to deliver engaging player experiences.
  • Analyze market trends to propose high-potential concepts and 
    fresh puzzle mechanics
    .
  • Create and maintain 
    GD documentation
    : GDD, Feature specs, Level design docs, Game balance sheets.
  • Balance 
    in-game economy
    , difficulty, and pacing to maximize retention and engagement.
  • Work with UA/Data teams to improve 
    KPI performance
     (CPI, D1–D7 RR, playtime, funnel).
  • Review builds regularly, provide clear feedback on UI/UX, game feel and feature quality.
  • Support optimization to scale 
    monetization models
    : IAP + Interstitial + Reward Ads + Subscription (if applicable).

Requirements
Must-have

  • 4+ years experience as 
    Game Designer
     in mobile casual games.
  • Strong portfolio
     with shipped puzzle/sorting games (match, logic, physics-based, brain-train…).

Expertise in:

  • Crafting puzzle mechanics & level design
  • Difficulty progression & game economy balancing
  • KPI-driven design decisions (Retention, Playtime, Monetization)
  • Excellent documentation, presentation, and communication skills.
  • Solid knowledge of mobile game UX and player psychology.
  • Ability to work independently and drive features to completion.

Nice-to-have

  • Experience with 
    Unity
     tools for level creation & prototyping.
  • Familiarity with 
    A/B testing
    , LiveOps optimization.
  • Understanding of 
    trends in Casual/Hyper-Casual publishing
    .

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