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Posted on 2026/01/16

Unreal AI / Simulation Programmer

Agay Barho

Karachi, Pakistan

Full-time

Full Description

Job Title

Unreal AI / Simulation Programmer

Location

Onsite – Karachi

NASTP, PAF Museum (Silicon Valley)

Working Hours

Monday to Friday | 9:00 AM – 5:00 PM

Job Overview

We are seeking a skilled Unreal AI / Simulation Programmer to design and implement large-scale NPC behaviors and simulation systems in Unreal Engine.

The role focuses on building believable AI-driven populations, daily routines, and traffic systems using Unreal’s AI and Mass frameworks, strictly following provided design documents.

Key Responsibilities

• Implement scripted NPC routines using Behavior Trees, State Trees, EQS, and Blackboards

• Develop and maintain AI logic for daily schedules, commuting, shopping, and leisure behaviors

• Build and optimize population simulation systems using Unreal Mass AI

• Implement traffic flow and crowd behaviors based on simulation requirements

• Translate design documents into scalable and efficient AI systems

• Optimize AI and simulation performance for large numbers of NPCs

• Collaborate with gameplay designers and technical teams to ensure system accuracy

• Debug and refine AI behaviors to ensure realistic and consistent outcomes

• Maintain clear technical documentation for AI and simulation systems

Required Skills & Qualifications

• Strong experience with Unreal Engine (UE4/UE5)

• Hands-on expertise in AI systems: Behavior Trees, State Trees, EQS, and Blackboards

• Experience working with Unreal Mass AI or large-scale simulation frameworks

• Proficiency in C++ and/or Blueprints for AI implementation

• Solid understanding of NPC behavior design and simulation logic

• Strong debugging, optimization, and problem-solving skills

Preferred Qualifications

• Experience building city-scale simulations or crowd systems

• Familiarity with traffic simulation or commuting systems

• Experience optimizing AI for performance at scale

• Prior experience working from structured design documentation

What We Offer

• Onsite role at NASTP – Pakistan’s leading technology and innovation hub

• Stable working hours in a collaborative development environment

• Opportunity to work on complex AI-driven simulation systems

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