Loading...
Image

Saika Kisami

Mobile/HTML5 Game Developer, Playable Ads Developer, Full-Stack Web/App Developer, AI/ML Integrator, Tech Leader

About Me

Senior Game Engineering/Full-Stack Developer with 10+ of experience dedicated solely to the craft of Game and Web development. My career began in the code trenches and evolved into strategic leadership, driven by a passion for creating deeply engaging player experiences.
My core expertise lies in end-to-end game creation across multiple platforms and genres. I architect and build games using the industry's leading engines and frameworks, including Unity, Unreal Engine, Godot, Cocos Creator, Pixi.js and Phaser.js. For Playable Ads, I leverage high-performance frameworks like Pixi.js, Phaser.js, Cocos Creator, Three.js and Luna/Unity to deliver rich, interactive experiences.
I have directed technical vision for titles that pushed creative and technical boundaries, specializing in implementing:


- Advanced Rendering & Visuals to achieve stunning aesthetic quality and performance.
- Sophisticated AI Systems that create compelling and intelligent gameplay.
- Scalable Multiplayer Infrastructures that support thriving online communities.
- Playable Ads Development to drive user acquisition through engaging interactive ads.
- Full-Stack Development to build tools and platforms that enhance game operations.
My development proficiency is built on a strong foundation in C#, C++, Java, Python, JavaScript and TypeScript, allowing me to build robust and optimized game systems.
Beyond pure development, I apply my expertise to adjacent areas critical to modern games, such as integrating blockchain for secure in-game economies and leading teams with Agile and DevOps methodologies to ensure efficient, high-quality delivery.
My primary mission is to pioneer the next generation of interactive entertainment. I am constantly exploring new technologies and design philosophies to elevate what games can be and to deliver unforgettable experiences to players.

Name: Saika Kisami
Birthday: 14 January 1990
Degree: Bachelor
Experience: 10 Years
Email: winksmile114@gmail.com
Address: Osaka, Japan
Freelance: Available

10

Years of

Experience

86

Happy

Clients

220

Complete

Projects

Skills

C/C++

100%

C#

100%

Java

98%

Unity

95%

Unreal Engine

85%

Cocos Creator

95%

Gamesalad

95%

Python

90%

Pixi.js

95%

HTML5 Canvas

100%

Cocos2dx

98%

WebGL

95%

SmatFoxServer

90%

Node JS

95%

Photon

95%

World Machine

90%

Lua

85%

Javascript

100%

Phaser

85%

TypeScript

85%

Godot

95%

KBEngine

85%

Nakama

80%

Solidity

80%

DevOps

80%

Docker

80%

Firebase

80%

ReactJS

90%

Rust

80%

Golang

80%

Socket io

95%

Defold

85%

Corgi Engine

85%

Colyseus

85%

Luna

85%

Construct

85%

Flutter

85%

Dart

95%

Expo

75%

PostgreSQL

85%

Ether.js

80%

Telegram API

90%

Capacitor

75%

Firestore

80%

Redis

80%

AWS EC2

85%

React Native

80%

GraphQL

80%

GameSparks

80%

PlayFab

80%

Mirror

85%

Experience

Senior Unity Game Developer | FullStack Developer

Simeck Entertainment | 2025 - present

- Directed core gameplay for "Fat Butters' Jetpack Ride" in Unity 6, collaborating with the Co-Founder to implement physics-based 2.5D mechanics that defined the game's feel.
- Architected modular character control and physics systems in C#, optimizing performance to maintain 60 FPS across target platforms.
- Managed development workflow using Notion as a ticketing system—tracking tasks, prioritizing bugs, and streamlining sprint planning with the team.
- Served as Merge Master, establishing GitHub branching strategies and PR review standards that reduced merge conflicts by ~20%.
- Debugged critical gameplay and physics issues to ensure stable milestone builds and on-time delivery.
- Mentored developers through code reviews and Unity best practices, raising team technical proficiency and velocity.
- Built the company website from Figma designs using React/Vite/Tailwind and a Node.js/Express/MongoDB backend.
- Enhanced UX with custom animations and interactive elements, increasing user engagement and session duration.
- Engineered and deployed a secure backend API, achieving 99.9% uptime post-launch on Hostinger.
- Facilitated cross-team collaboration by aligning technical tasks in Notion with creative goals—improving transparency and iteration speed.

Senior Game Developer

Moonmana Company | 2019 - 2023

-Boosted "Aries" RPG frame rates by 23% in Unreal Engine using optimized C++ rendering algorithms.
-Enhanced "PowVista" in Unity with complex C# physics and AI, earning industry acclaim for gameplay.
-Led "Mus" Card Game's engineering with Python and JavaScript, achieving 60,000+ concurrent players.
-Improved online game backend speed by 11% and uptime to 94% using Java.
-Reduced "Frontline Tactics" lag by 29% with Photon and JavaScript for better multiplayer sync.
-Increased "Fight Club" user engagement by 13% with a NodeJS and GraphQL backend.
-Automated "Pokeone's" AWS EC2 cloud migration with Docker and Terraform, enhancing scalability.
-Upgraded "Knight's Legacy" performance by 13% by transitioning to Godot Engine and optimizing GDScript.
-Raised "AstraMyth" engagement with procedurally generated content in Godot using C#.
- Built multiple 2D games in Cocos Creator, including Mus (Spanish card game), Chinese Checkers, Craps, and Othello, focusing on smooth gameplay and engaging user experience.
- Developed a 2.5D robot card battle game in Cocos Creator, leveraging custom mechanics and animations to deliver dynamic and visually appealing gameplay.
-Boosted team productivity by 12% with Godot GDScript training, cutting developer ramp-up by 8%.
-Secured "Aries" in-game transactions with a Solidity blockchain item verification system.
-Implemented DevOps for "Aries" with Jenkins and Kubernetes, enabling daily updates without downtime.
-Increased "WhotAfrica" player lifetime value by 31% using Python for personalized ML content.
-Achieved 98% data availability in "Aries" with optimized MongoDB and SQL databases.
-Streamlined asset production in Blender, ZBrush, and Maya with Python, improving efficiency by 4%.
-Improved "Warrior's Eclipse" stability with thorough C# and C++ code reviews, mentoring junior engineers.

Game Back-end Developer

Atooi | 2015 - 2019

-Built "Mutant Mudds" backend in Unity with C# and AWS Lambda, achieving 94% uptime and scalable multiplayer.
-Enhanced "Blur" matchmaking with Photon and C#, cutting wait times by 16%.
-Designed scalable server logic for "World of Warcraft: Mutant Mudds" in Unreal Engine with NodeJS, supporting thousands of players.
-Improved "Mutant Mudds" multiplayer backend with SmartFoxServer and Golang, boosting response times by 29%.
-Developed dynamic economies in "Mutant Mudds" using C++ and RESTful APIs, increasing in-app purchases by 10%.
-Managed high-throughput databases for "Mutant Mudds" with MongoDB and SQL, ensuring data integrity.
-Integrated Google Cloud and Docker for "Xeodrifter" cutting costs by 25%.
-Accelerated game releases with Azure DevOps CI/CD, using PowerShell and YAML to speed up cycles by 20%.
-Enhanced "Xeodrifter" multiplayer sync with WebSockets and Socket.io, improving engagement.
-Boosted server scaling for "Xeodrifter" with Python and AWS EC2, enhancing efficiency by 15%.
-Programmed AI NPCs for "Technotown" in Unreal Engine using Blueprints and Lua for complex behaviors.
-Implemented PlayFab for "Totes the Goat" with TypeScript, automating progression tracking and increasing users by 10%.

Junior Unity Developer and Game Designer

Watson Creative | 2012 - 2015

-Orchestrated "Wolfenstein RPG" development in Unity and Cocos 2d-x, boosting session lengths by 8%.
-Boosted "Runner's Rift" retention by 6% with advanced C# and JavaScript game mechanics.
-Built Java multiplayer back-ends with chat and leaderboards for thousands of users.
-Created engaging 2D games with Phaser.js, focusing on intuitive mechanics and visual storytelling.
-Increased "Doom || RPG" user ratings by 21% using Unity for physics and animation.
-Achieved 97% stability for "MindBend" with HTML5 and WebGL, ensuring smooth gameplay.
-Scripted AI and combat for a strategy game in GDScript with Godot, enhancing rapid prototyping.
-Designed creative "Color Rush" levels with Godot, earning praise for ingenuity.
-Boosted "Runner's Rift" to top 10 Steam indie rank with Photoshop and Blender for environments.
-Reduced "Wolfenstein RPG" onboarding time by 30% with Figma-designed intuitive UI.
-Authored modular code for an open-world game, cutting load times by 18% and drop-off by 13%.
-Sped up "Knight's Journey" development by 32% using PixiJS and Corgi Engine.
-Improved daily users by 4% with a Vue.js settings menu for better engagement.
-Implemented Agile and Git, doubling deployment frequency and halving rollbacks, boosting efficiency.

Portfolio

Contact Me