Full-Time

Gameplay Systems Engineer

Updated on 8/24/2026

Mob Entertainment

Mob Entertainment

51-200 employees

Animation and games studio producing originals

Compensation Overview

$36 - $64/hr

Remote in USA

Remote

Category
Software Engineering (1)
Required Skills
Unreal Engine
Git
Machine Learning
JIRA
Confluence
C/C++

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Requirements
  • The candidate must have 3–5 years of professional game-development experience focused on gameplay artificial intelligence or systems programming.
  • The candidate must have hands-on experience with Unreal Engine, including Behavior Trees, Blackboards, Environment Query System, and Unreal navigation.
  • The candidate must be highly proficient in C++ and comfortable working with both C++ and Blueprint in Unreal Engine.
  • The candidate must understand game artificial-intelligence concepts including pathfinding, state machines, perception systems, and decision-making architectures.
  • The candidate must have shipped at least one commercial game title, in whole or in part.
  • The candidate must be familiar with performance profiling and optimization within Unreal Engine.
  • The candidate must have experience using Jira for task tracking and Confluence for documentation, or comparable tools.
  • The candidate must be able to collaborate closely with designers, animators, and other engineers in an iterative development environment.
Responsibilities
  • Design, implement, and iterate on gameplay artificial-intelligence systems in Unreal Engine, including behavior trees, blackboards, Environment Query System, and navigation and pathfinding.
  • Build enemy artificial-intelligence behaviors for perception, patrol, chase, combat, and state logic that support horror and gameplay mechanics.
  • Collaborate with designers to translate creative intent, including pacing, tension, scares, and puzzle logic, into robust and tunable artificial-intelligence systems.
  • Partner with animators and gameplay programmers to ensure artificial-intelligence-driven characters move and react convincingly within the game engine.
  • Optimize artificial-intelligence systems for performance across target platforms by identifying and resolving bottlenecks in pathfinding, perception, and decision-making at scale.
  • Debug and resolve artificial-intelligence issues reported during production, quality assurance, and post-launch, using Jira to track, prioritize, and resolve work.
  • Document artificial-intelligence system architecture, workflows, and design patterns in Confluence to support team-wide understanding and onboarding.
  • Write clean, maintainable, well-tested C++ and/or Blueprint code within Unreal Engine.
  • Participate in code reviews, design discussions, and sprint planning as part of a cross-functional development team.
  • Stay current on artificial-intelligence techniques and Unreal Engine features relevant to gameplay artificial intelligence, and propose opportunities to improve existing systems.
  • Deliver stable, scalable systems that are easy for others to use and extend.
  • Reduce senior-team support burden by working with minimal supervision.
  • Improve engineering throughput by owning technical implementation end-to-end.
  • Contribute to the efficiency, maintainability, and velocity of the project.
Desired Qualifications
  • Experience building artificial-intelligence systems for horror, stealth, or tension-driven gameplay.
  • Familiarity with animation systems, including state machines, blend spaces, and inverse kinematics, as they relate to artificial-intelligence-driven characters.
  • Experience applying machine-learning techniques to gameplay, such as procedural behavior or adaptive difficulty.
  • Prior experience at a small or independent studio and comfort operating with limited infrastructure.
  • Familiarity with source-control tools such as Perforce or Git in a game-production pipeline.
  • Passion for horror games, narrative-driven experiences, or the Poppy Playtime franchise.
  • Experience working on projects where systems needed to scale or evolve beyond minimum viable product.

Mob Entertainment is a creative studio that makes original animation and video games for a global audience. Its products are stories told through animated content and interactive games, delivered via various channels, with revenue coming from direct sales, licensing, and partnerships. The company develops and distributes its own content, exploring new media to reach more fans and turn its brand into a familiar part of daily life. What sets Mob Entertainment apart is its focus on international storytelling that spans media formats, its use of licensing and partnerships to extend reach, and a commitment to engaging audiences with reflective, across-the-board storytelling rather than relying on a single format. The goal is to continually grow its audience and influence by expanding into new media, collaborations, and formats while keeping content accessible and enthusiastically received around the world.

Company Size

51-200

Company Stage

N/A

Total Funding

N/A

Headquarters

St. Louis, Missouri

Founded

2015

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Simplify Jobs

Simplify's Take

What believers are saying

  • PlaytimeCo.Store launched March 16, 2026, creating direct-to-fan recurring merchandise revenue.
  • Mob shipped Poppy Playtime characters into Minecraft on October 14, 2025.
  • Chapter 5 drove franchise-best sales and Twitch viewership at launch.

What critics are saying

  • Mob's January 2025 Google lawsuit keeps counterfeit Poppy Playtime apps in the spotlight.
  • Mobile knockoffs and trademark leaks dilute Poppy Playtime, especially during 2026 console rollouts.
  • One franchise failure kills Mob Entertainment; Poppy Playtime still funds the studio.

What makes Mob Entertainment unique

  • Poppy Playtime combines episodic horror, mascot characters, and puzzle design across games and merchandise.
  • Chapter 5 launched February 18, 2026, and topped Steam Global Top Sellers.
  • Mob Entertainment secured Legendary Entertainment for a Poppy Playtime film adaptation.

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Benefits

Remote Work Options

Company News

Brands Untapped
Jul 23rd, 2026
Spiralcute welcomes Liesa Dornan as VP Business Development - UK, Europe & Middle East.

Spiralcute welcomes Liesa Dornan as VP Business Development - UK, Europe & Middle East. by Billy Langsworthy Published 23.07.26 "I am excited to get started working on the wonderful Spiralcute brands," said Liesa Dornan. Spiralcute has appointed Liesa Dornan to the role of VP Business Development - UK, Europe & Middle East. Reporting to Kate Schlomann, EVP Business Development & Operations, Liesa will lead the licensing and consumer products business across the EMEA region, working closely with Spiralcute's network of agents and consultants across the territory. She will be responsible for driving regional revenue growth, expanding market presence, securing strategic licensing partnerships, and maximising franchise value across Spiralcute's portfolio of entertainment and consumer brands. Liesa joins Spiralcute from Mob Entertainment, where she was Head of International Licensing. Prior to that she spent almost six years at Retail Monster Ltd as VP International Licensing and Brand Management, following four years as Director of European Retail at Universal and two-and-a-half years at The Walt Disney Company, where she was EMEA Franchise Manager. "We are delighted to welcome Liesa to the Spiralcute family," said Kate Schlomann, EVP Business Development & Operations at Spiralcute International. "A dynamic and passionate addition to our team, her wealth of business experience, innovation and in-depth knowledge of these regions will be invaluable as we continue to expand worldwide." Liesa Dornan added: "I am excited to get started working on the wonderful Spiralcute brands. They have such warmth, charm and creativity and I'm really looking forward to working with our existing and new partners across the UK and EMEA to help build them into long-lasting global franchises."

Haroop
Jun 1st, 2026
Poppy Playtime 5 gets a release date and a new name: Poppy Playtime: Chapter 5 - Broken Things.

Poppy Playtime 5 gets a release date and a new name: Poppy Playtime: Chapter 5 - Broken Things. Jun 08,2026 Author: Ellie Hroop finally have a release date for Poppy Playtime: Chapter 5 - February 18, 2026. The game also has a subtitle, giving the full official title: Poppy Playtime: Chapter 5 - Broken Things. Based on the latest trailer, the name couldn't be more fitting. Yikes. With just a month left, developer Mod Entertainment has unveiled a new cinematic teaser that draws Hroop even closer to the terrifying - and terrifyingly massive - Experiment 1006, known to fans as The Prototype. Although Poppy Playtime is available on many platforms, this new episode is launching exclusively on PC for now, with the team confirming that "a full console release will follow in the months ahead." "Deep within the vacant halls of the Playtime Co. lab, The Prototype stalks its unfinished work... the tattered, lifeless remains of toys that once were," the developer teases. "Broken things." The episodic game launched all the way back in 2021, and the most recent chapter, Poppy Playtime: Chapter 4, arrived at the end of January 2025 - meaning Hroop has waited a long time to discover what happened after Chapter 4's events. With the studio promising "stomach-churning terror" in this "chilling new layer," it's sure to be worth the wait. Chapter 5 will put you face-to-face with the "deadly puppetmaster behind the horrifying events of Playtime Co.'s dark past," challenge you with puzzles and obstacles, and task you with "traversing this new realm of shadows in a fight for survival (and the truth)." And of course, the beloved Huggy Wuggy is back. In news that won't shock any horror mascot fan, developer Mob Entertainment has teamed up with Legendary Entertainment to develop a film based on its toy-factory horror hit. This is just the latest in a long line of horror games getting adapted, following titles like Five Nights at Freddy's, Until Dawn, Dredge, Martha Is Dead, and the genre-defining Phasmophobia.

GoNintendo
Mar 16th, 2026
Poppy Playtime Online Merchandise Store Opens

Poppy Playtime online merchandise store opens. Scary good deals 16 March 2026 Mob Entertainment, the powerhouse behind the viral indie horror phenomenon Poppy Playtime, has officially launched a new online store dedicated to Poppy Playtime merchandise. The new storefront, PlaytimeCo.Store, gives fans around the world a centralized destination to purchase officially licensed collectibles, apparel, and exclusive items inspired by the hit horror game franchise. Launching with the new storefront is a line of exclusive Poppy Playtime: Chapter 5, including plushies and a wide range of apparel. "The launch of Chapter 5 felt like a perfect moment to refresh our merchandise offering and give our fans even more ways to connect with Poppy Playtime," said Benjamin Weaver, Senior Manager, Commerce, Mob Entertainment. "Our fans have been incredibly passionate about the series and vocal about the kinds of collectibles they'd like to see, and this new store allows us to offer high-quality options that celebrate that enthusiasm." Designed with the global community in mind, the store enables fans anywhere in the world to easily browse and purchase official merchandise, ensuring that fans everywhere can access authentic products directly from the creators behind Poppy Playtime. The storefront will also serve as a hub for future merchandise drops, exclusive releases, and limited collectibles, giving fans the chance to secure special items tied to new experiences, characters, and major franchise milestones. Fans can explore the new official Poppy Playtime online store and discover the latest merchandise available now: https://playtimeco.store Since its debut, Poppy Playtime has grown into a global phenomenon, attracting millions of players and viewers with its unique blend of horror, episodic storytelling, and iconic mascot characters. Launched on February 18, 2026, Poppy Playtime: Chapter 5 has quickly become the highest-performing launch in the franchise's history, soaring to the #1 spot on Steam's Global Top Sellers chart and holding the position for more than 24 hours following release. Day-one sales shattered previous chapter records by thousands, while also claiming the #1 most-watched game spot on Twitch. The launch of the new online store reflects Mob Entertainment's continued commitment to expanding the franchise and creating new ways for fans to engage with the world of Playtime Co.

Netto's Game Room
Feb 4th, 2026
Poppy Playtime: Chapter 5 - SALVATION Trailer

Poppy Playtime: Chapter 5 - SALVATION trailer. Mob Entertainment has released a new trailer for the upcoming Poppy Playtime: Chapter 5 titled SALVATION. Poppy Playtime: Chapter 5 is now available to wishlist on Steam and Epic Games Store, and will launch on February 18, 2026. FREEDOM! FREEDOM! FREEDOM! They may wish for it. And I may allow them to believe they have it. Nettosgameroom must. Obey. These "doctors" So helpful they were, in the end. There when I needed them. It's time now, to make this permanent. This freedom. This...Salvation. About: In Poppy Playtime: Chapter 5, players must prepare to face off against the deadly puppetmaster behind the horrifying events of Playtime Co. Solve devious puzzles and overcome dangerous obstacles as the true rotten heart at the center of Playtime Co. draws nearer. Traverse this new realm of shadows in a fight for survival (and the truth) with Playtime's security system, Huggy Wuggy, in hot pursuit and separated from your only allies. Will you finally end this nightmare, or fall victim to the puppet master's twisted madness? Features: * Stomach-churning terrors await you in this new section of the factory as you uncover the dark works hidden within The Prototype's stomping grounds. * In this chilling new layer of the Playtime facility, you will encounter the tortured denizens living in the darkness. They may aid you in your quest to defeat The Prototype, but can they be trusted? * Solve devious puzzles and overcome dangerous environmental obstacles with the power of new GrabPack tools and functionality. * As you reach the true rotten heart at the center of Playtime, discover some of the company's gravest sins. Gallery:

Netto's Game Room
Jan 21st, 2026
Poppy Playtime: Chapter 5 - The MY NAME IS CATNAP Trailer

Poppy Playtime: Chapter 5 - the MY NAME IS CATNAP trailer. Mob Entertainment has released a new trailer for the upcoming Poppy Playtime: Chapter 5 titled MY NAME IS CATNAP. Poppy Playtime: Chapter 5 is now available to wishlist on Steam and Epic Games Store, and will launch on February 18, 2026. Incident report: November 22nd, 1990 incident report [restricted_conditioning_1990] EXPERIMENT #1188 "CATNAP" From the beginning, it was clear 1188 would need extensive treatment. What is your name? What is your experiment number? Can you tell me who you are? Total treatment time: 49 days. Treatment outcome: successful. - M | Y | N | AM | Ë | Í | S | T | HE | Ȍ | D | OR | E -. In Poppy Playtime: Chapter 5, players must prepare to face off against the deadly puppetmaster behind the horrifying events of Playtime Co. Solve devious puzzles and overcome dangerous obstacles as the true rotten heart at the center of Playtime Co. draws nearer. Traverse this new realm of shadows in a fight for survival (and the truth) with Playtime's security system, Huggy Wuggy, in hot pursuit and separated from your only allies. Will you finally end this nightmare, or fall victim to the puppet master's twisted madness? Features: * Stomach-churning terrors await you in this new section of the factory as you uncover the dark works hidden within The Prototype's stomping grounds. * In this chilling new layer of the Playtime facility, you will encounter the tortured denizens living in the darkness. They may aid you in your quest to defeat The Prototype, but can they be trusted? * Solve devious puzzles and overcome dangerous environmental obstacles with the power of new GrabPack tools and functionality. * As you reach the true rotten heart at the center of Playtime, discover some of the company's gravest sins. Ben is the founder of Netto's Game Room and is an avid video game player who enjoys sharing his passion with the world.