Reval Logo
Browse TalentFind TalentOpen JobsPricingFAQsGet Started
ScreenedIdentity Verified
No cost, no commitment - we'll make a personal intro
Freddy Hajas - Innovative Gameplay Designer & Programmer in Rio de Janeiro, Brazil

Freddy Hajas

Principal Gameplay Designer/Programmer specializing in FPS/TPS systems and AI

Betagames GroupPontifical Catholic University of Rio de JaneiroRio de Janeiro, Brazil28 Years ExperiencePrincipal LevelWorks Remote

Connect with Freddy

Freddy already has a relationship with Reval, so a warm intro from us gets a much better response than cold outreach.

Typically responds within 24 hours

Recommended

Already have an account?

About

Long-time Call of Duty mod/game-mode creator (Call of Duty Frontlines/Rio) who designed 40+ gametypes, including “Swarm” later released officially as MW3’s Team Defender. Known for deep tuning/balance iteration and for overcoming engine constraints (e.g., expanding limited model slots via load-time model merging to ship large amounts of new weapons/vehicles/enemies). Currently building an UE5 game (Comando Rio) on Lyra, implementing custom audio systems and camera/movement features, collaborating with Gooseman (Counter-Strike creator).

Hire with Reval

Find your next great hire

Our AI agents source, screen, and vet candidates for your open roles. Get qualified candidates within 48 hours.

$250one-time kickoff
10%on successful hire
Post a Role90-day money-back guarantee

Key Strengths

  • Owned and shipped multiple multiplayer game modes end-to-end (40+ gametypes)
  • Strong multiplayer tuning instincts (spawn randomization, scoring/respawn adjustments based on play outcomes)
  • Deep domain experience with Call of Duty/id Tech engine and shipped mods/content used across titles
  • Solves hard engine constraints with technical design (model slot limitation workaround via load-time model merging)
  • Focus on replayability through systemic variation/unknowns in each play session
  • Built core gameplay systems in UE5 (custom audio behavior system; camera perspective switching; movement tweaks) using Lyra as a foundation

Like what you see? We'll introduce you to Freddy directly.

Experience

Gameplay/Level Design (Third Person Shooter 171)171 (Betagames Group) · Jan 2023 – Presentcontract
Gameplay QA / Gameplay Design Support (Cyborg3003)Banzato Games · Jan 2023 – Jan 2023contract
Developer (Comando Rio)Hajas Game Studio · Jan 2024 – Presentfreelance
Developer (AfterImpaKt)Hajas Game Studio · Jan 2022 – Presentfreelance
Adobe ColdFusion DeveloperEletrobras · Jan 2009 – Jan 2024
Application Servers Admin with .NET & ASP supportEletrobras · Jan 2009 – Jan 2024
Microsoft SharepointEletrobras · Jan 2009 – Jan 2024
Adobe ColdFusion DeveloperIRB-Brasil RE · Jan 1998 – Jan 2009
General Internet SupportOpenlink Network (PSINet) · Jan 1997 – Jan 1998

Education

Pontifical Catholic University of Rio de Janeirobachelor, Computer Science (1999)
International Baccalaureate (IBA Wakigawa)high_school, Electronics & Computers (1993)

Awards

  • ModDB Mod of the Year (MOTY) 2021 - Best Call of Duty mod of the world (Call of Duty Rio) - ModDB
  • ModDB Mod of the Year (MOTY) 2022 - Best Call of Duty mod of the world (Call of Duty Rio) - ModDB
  • ModDB Mod of the Year (MOTY) 2018 - Best Call of Duty Mod (Call of Duty Frontlines FOREVER) - ModDB
  • ModDB Mod of the Year (MOTY) 2008 - Best Call of Duty Mod (Call of Duty Frontlines) - ModDB
  • ModDB Mod of the Year (MOTY) 2012 - Best Call of Duty Mod (Call of Duty Frontlines) - ModDB
  • ModDB Editor's Choice - Best Call of Duty Mod (Black Frontlines) - ModDB

Skills

Database DesignProject ManagementVideo EditingNetworkingProblem SolvingUnreal EngineUnityC#CC++PythonJavaJavaScriptHTMLCSS

Languages

PortugueseEnglish

Browse Similar

DesignDatabase DesignProject ManagementVideo EditingNetworking

Similar Candidates

DS

David Stinchcomb

Game Design Director specializing in live ops modernization and AAA/mobile game design

Menifee, CA23y exp
Jam CityIndiana University
UI/UX DesignData AnalyticsProduct ManagementUnityFigmaJira+45
View profile
RS

Richard Sandoval

Senior QA Tester specializing in AAA video game quality and technical requirements

4y exp
Activision BlizzardTexas A&M University
Project managementCommunicationCross-functional collaborationQuality assurancePeople managementStaff motivation+19
View profile
KG

Kory Gordon-Rees

Mid-level Game Designer and QA Analyst specializing in gameplay systems, level design, and test execution

Kirkland, WA7y exp
AmazonFull Sail University
C#DocumentationJenkinsJiraPrototypingUnity+54
View profile
DB

Dominic Barile

Senior Level Designer specializing in Unreal Engine gameplay and world building

Raleigh, NC13y exp
Motion Logic StudiosWake Technical Community College
PrototypingCross-functional CollaborationTest PlanningReportingJiraAdobe Photoshop+33
View profile
BH

Bo Hu

Screened

Junior Game Designer specializing in level and encounter design

Beijing, China2y exp
BilibiliUC Santa Cruz

“Game designer focused on mobile/PC action gameplay who owned end-to-end mode design and tuning on "Thrud: Broken Heaven" (3rd-person aerial shooter). Notable for telemetry-driven iteration across CBT1-3, rapid UE5 Blueprint prototyping, and building a reusable in-battle tutorial framework that improved onboarding clarity and reduced frustration while preserving challenge.”

UnityC#SQLAdobe PhotoshopBlenderGit+62
View profile
HS

Huiming Shi

Junior Game Designer & Product Manager specializing in Unity and AI/XR game tools

Jersey City, New Jersey3y exp
UnityNYU
UnityC#FigmaBlenderHTMLCSS+50
View profile

Interested in Freddy?

We'll personally introduce you - no strings attached.

For Hiring Teams

Build your dream team with Reval

Our AI agents source, screen, and vet candidates for your open roles. Get qualified, high-intent candidates on your desk within 48 hours.

$250one-time kickoff
10%on successful hire
48hrsto first candidates
Post a Role90-day money-back guarantee. A fraction of traditional agency fees.

Discover more candidates like Freddy

Search across thousands of pre-screened, high-quality, high-intent candidates on Reval.

Search Talent

Connect with Freddy

Freddy already has a relationship with Reval, so a warm intro from us gets a much better response than cold outreach.

Typically responds within 24 hours

Recommended

Already have an account?

Hire with Reval

Find your next great hire

Our AI agents source, screen, and vet candidates for your open roles. Get qualified candidates within 48 hours.

$250one-time kickoff
10%on successful hire
Post a Role90-day money-back guarantee
Freddy HajasPrincipal Gameplay Designer/Programmer specializing in FPS/TPS systems and AI