K
Kris DevPortfolio
Available for work

Hi, I'm Kris!

Game Developer

Software engineer experienced in full-stack development, cloud infrastructure, and team leadership across web, mobile, and interactive platforms.

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Profile

KRIS DEV

Skills & Technologies

Expertise

Programming Languages

9 technologies

C#JavaScriptTypeScriptGoShellPythonDartSwiftC++

Front-end

10 technologies

NextJSReactTailwindHTMLCSSStorybookFlutterThree.jsElectronJSPlaywright

UI/UX

9 technologies

FigmaDesign SystemUI DesignUX DesignWireframesPrototypesPersonaUser JourneyUser flow

Back-end

11 technologies

NodeJSGoGo FiberREST APIMySQLPrismaWeb SocketRedisNginxKafkagRPC

DevOps

8 technologies

GitLab CI/CDDockerFirebase App DistributionAWS AutoscalingSlack IntegrationPM2Fastlaneyml

Cloud

8 technologies

AWS EC2AWS S3AWS IAMAWS AutoscalingAWS ECSAWS ECRAWS Cloud WatchTerraform

Game Development

7 technologies

UnityMobile GameDedicated Game ServerWebGL GameARVRPC/Console Game

System Analysis

8 technologies

Requirement AnalysisSystem DesignDocumentationER DiagramSequence DiagramPlantUMLDBMLDraw.io

Design

6 technologies

Graphic DesignPhotoshopAfter EffectsMaya3D DesignBlender

Leadership & Management

7 technologies

LeadershipOwnershipManagementAgileTeam BuildingMentoringKnowledge Sharing

Business Tools & Misc

10 technologies

NotionNotionAPISlackVSCodeSourcetreeXcoden8n AutomationOOPGoogle AI StudioClaude
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Work History

Experience

    • Introduced key engineering transformations including CI/CD adoption, Unity team restructuring into a full-stack organization, and iOS migration to Flutter. Led architecture and system design across products, enabling scalability and contributing to 100M+ yen in revenue while standardizing engineering practices across all tech teams.
    • Successfully created various MVP products within days to support project pitches, each generating 30–100 million yen in revenue, through rapid system design and architecture planning that enabled fast iteration and scalable production delivery.
    • Led small teams (4–5 members) to design, architect, and deliver a 1-on-1 VTuber video call platform composed of multiple integrated systems and products.
    • Delivered a wide range of products for Japanese clients, including mobile applications, interactive PC applications, and other cross-platform solutions, frequently defining end-to-end technical architecture from frontend to backend and infrastructure.
    • Built and developed talent from the ground up, mentoring and training team members across multiple domains such as Go, Next.js, Storybook, DevOps, CI/CD, AWS, Flutter, and Figma.
    • Oversaw end-to-end software development, including architecture, team management, product design, frontend, backend, cloud, and DevOps.
    • Invented and implemented internal tools and systems to improve engineering productivity, standardize architecture patterns, and enhance cross-team collaboration.
    • Managed teams and tasks, eliminated bottlenecks, and improved overall efficiency across the organization through technical architecture decisions and operational improvements.

    Projects

    Vtuber one-on-one video call platform

    Oct 2024 - Present
    Project LeadTeam LeadSoftware EngineerDevOps EngineerUI/UX Designer

    Products

    Commercial Web AppVtuber Web AppVideo Call Web AppMobile AppCMSAPI

    Tech Stack

    NextJSReactJavascriptTailwindStorybookMiroTalkFlutterGoGo FiberGitlab CI/CDAWS ECRAWS ECSAWS EC2AWS S3AWS SESTerraformOmiseAWS API GatewayFirebase App DistributionFigmaNotionn8nGhost CMSPlaywright

    Responsibilities

    • Team Management
    • Software Implementation
    • Training
    • Gathering Requirements
    • Product Design
    • System Design
    • Infrastructure Design
    • UI/UX Design
    • DevOps
    • Worked closely with C-level executives and cross-functional teams to design products aligned with business requirements.
    • Led multi-team projects end-to-end including research, system architecture, and ownership distribution.
    • Managed and refined tasks across teams daily to ensure alignment and progress.
    • Acted as a hands-on contributor for complex technical challenges and implementation gaps.
    • Designed and implemented centralized transaction services and payment integrations using Omise.
    • Managed iOS and Android in-app purchase implementations.

    Various Unity Projects

    May 2022 - Present
    Team LeadUnity DeveloperDevOps Engineer

    Products

    Mobile MetaverseIn-house Mobile Vtuber Face and Motion TrackingInteractive Projection ApplicationIn-store Beauty Product Application

    Tech Stack

    UnityUnity NetcodeUnity MirrorDedicated Game ServerDockerAWS EC2AWS ECRAWS ECSAWS CloudFront

    Responsibilities

    • Team Management
    • Software Implementation
    • Training
    • Infrastructure Design
    • Technical Artist
    • DevOps
    • Product Design
    • System Design
    • Worked on a variety of Unity projects across multiple platforms and devices, primarily serving clients in Japan.
    • Developed reusable package libraries and internal tools to improve development efficiency and standardization across projects. Also setup automated deployment pipelines from development to production.

    Internal Productivity Tools and Systems

    May 2022 - Present
    Software EngineerManagement

    Products

    Unity CI/CDWeb App ToolsNotion Integrationn8n Automation ToolsTailor Made Agile MethodologyDesktop App LauncherFigma Plugin

    Tech Stack

    Gitlab CI/CDNotionn8nFirebase App DistributionElectronJSAgileFigmaAWS S3HoppscotchSelf-HostedBruno

    Responsibilities

    • Developed a tailored Agile methodology reducing unnecessary ceremonies while maintaining alignment.
    • Built internal tools such as localization systems and time management platforms.
    • Created KPI tracking systems using commits and task aggregation with automated reporting.
    • Implemented CI/CD across iOS, Android, Web, and PC platforms.
    • Developed internal app launcher for build and deployment efficiency.
Selected Work

Projects

Only some selected recent work that is not under NDA is showcased here. Older projects and past work live in the archive portfolio →

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