Senior Data Scientist (Japan)
Tokyo, Japan
Full time
Office
Compensation is not specified
Role
Data Scientist
Description
About us:
Deep expertise, personal and industry evolution, and impeccable craft are the core values of our company, Limit Break. Founded by global industry leaders in mobile gaming, we are innovating to extend the potential of gaming into real-world economies and vibrant digital communities. Our commitment to fostering connections through technology and creative vision is paramount.
Limit Break is strongly supported by prominent investors such as Buckley Ventures & Paradigm Ventures and is at the forefront of the next technological revolution, with a growing adoption rate and numerous partnerships in both public and private sectors.
About the Role:
We are seeking a seasoned Data Scientist to join our dynamic team at Limit Break. The role involves contributing to the development of core data infrastructure and applications across various business functions including studio teams, analytics, user acquisition, monetization, and finance. Our team places significant emphasis on harnessing the immense value that data and analytics offer, driving investment in cutting-edge capabilities. Spanning real-time data ingestion to scalable data pipelines, you will work within a high-performance environment.
Responsibilities:
As a pivotal member of the Data Engineering team, you will be responsible for taking charge of data initiatives and collaborating closely with Data Pipeline Engineers and stakeholders in Live Operations and Marketing. Your primary duties will entail constructing tools, analytics, and dashboards crucial for informed business decision-making. Working with real-time data from multiple sources, you will operate within a sophisticated tech stack comprising Kafka, Imply Druid, EMR, Trino, and Airflow.
Requirements: Who you are and what you’ve done
- 5+ years of software engineering experience, particularly within data science and engineering projects.
- 3+ years of data engineering expertise, specifically in data analytics and dashboard creation.
- Proficiency in tools like Druid, Trino / Presto, Hive, Kafka, and Superset.
- Familiarity with workflow orchestration tools such as Airflow.
- Advanced proficiency in SQL and its variants.
- Proficient in at least one of Python, Scala, or R.
- Skilled in writing well-tested code, encompassing unit, integration, and end-to-end testing.
Nice to have: What an ideal candidate looks like
- Experience in high-scale machine learning like Spark M/L, SageMaker, etc.
- Knowledge of CI/CD processes, testing frameworks, and containerization technology.
Apply now:
Seeking confident and ambitious professionals for an exciting opportunity at our globally-recognized blockchain gaming company. We are expanding our presence across various regions worldwide. Diversity is highly valued in our organization. All applications will be considered on merit, irrespective of race, color, religion, gender identity, sexual orientation, or national origin.
Skills Required
Limitbreak
Website
limitbreak.comCompany size
Not specified
Location
Japan
Description
Not specified
Ismail Ahmad
Senior iOS developer for GameDev startup
Full time
Remote
Game Concept: “Reflex Arena”
Genre
Real-time competitive 1v1 / 2v2 skill-based action game
Platform
iOS (iPhone first, iPad optional)
Core Idea
A pure skill game where players compete in short, intense arena matches using precision timing, reflexes, and positioning — no RNG, no pay-to-win.
Each match lasts 60–90 seconds, making it ideal for mobile sessions while supporting competitive depth.
Core Gameplay Loop
Matchmaking
Skill-based MMR
Ranked & unranked queues
Arena Match
Small symmetrical arena
Players control a single character
Objective: score points by outplaying, not overpowering
Score & Progress
Win → rank up
Lose → learn (clear replay & stats)
Cosmetics only progression
Controls (Mobile-First, High Precision)
Left thumb: Movement (virtual joystick)
Right thumb: Aim + action swipe
Tap: Ability activation
Perfect timing windows reward precision (parries, counters)
👉 Designed to feel closer to a fighting game than a casual mobile title.
Mechanics (Skill > Stats)
Core Mechanics
Dash with cooldown (positioning skill)
Timed parry (frame-perfect defense)
Charged shots (risk vs reward)
Combo chaining (execution mastery)
No Randomness
Fixed damage
Fixed cooldowns
No crit chance
No loot boxes
Competitive Depth
Skill Expression
Reaction time
Prediction & mind games
Spacing & arena control
Cooldown tracking
Skill Ceiling
Easy to learn (1 minute)
Hard to master (1000+ matches)
Game Modes
Ranked Duel (Main Mode)
1v1
Best of 3 rounds
Seasonal leaderboard
Team Arena
2v2 coordinated play
Shared objectives
Training / Practice
Frame timing visualizer
Ghost replays of top players
Visual Style
Clean, minimalistic sci-fi arenas
High contrast for readability
60–120 FPS target (ProMotion)
👉 Performance clarity > visual noise.
Monetization (Fair & Competitive)
Skins (characters, arenas, effects)
Emotes / victory poses
Battle pass (cosmetic only)
🚫 No power boosts
🚫 No energy timers
🚫 No loot RNG
Technical Design (iOS-Optimized)
Native Swift
Metal / SpriteKit
Deterministic simulation
Server-authoritative logic
Rollback netcode (if real-time PvP)
Genre
Real-time competitive 1v1 / 2v2 skill-based action game
Platform
iOS (iPhone first, iPad optional)
Core Idea
A pure skill game where players compete in short, intense arena matches using precision timing, reflexes, and positioning — no RNG, no pay-to-win.
Each match lasts 60–90 seconds, making it ideal for mobile sessions while supporting competitive depth.
Core Gameplay Loop
Matchmaking
Skill-based MMR
Ranked & unranked queues
Arena Match
Small symmetrical arena
Players control a single character
Objective: score points by outplaying, not overpowering
Score & Progress
Win → rank up
Lose → learn (clear replay & stats)
Cosmetics only progression
Controls (Mobile-First, High Precision)
Left thumb: Movement (virtual joystick)
Right thumb: Aim + action swipe
Tap: Ability activation
Perfect timing windows reward precision (parries, counters)
👉 Designed to feel closer to a fighting game than a casual mobile title.
Mechanics (Skill > Stats)
Core Mechanics
Dash with cooldown (positioning skill)
Timed parry (frame-perfect defense)
Charged shots (risk vs reward)
Combo chaining (execution mastery)
No Randomness
Fixed damage
Fixed cooldowns
No crit chance
No loot boxes
Competitive Depth
Skill Expression
Reaction time
Prediction & mind games
Spacing & arena control
Cooldown tracking
Skill Ceiling
Easy to learn (1 minute)
Hard to master (1000+ matches)
Game Modes
Ranked Duel (Main Mode)
1v1
Best of 3 rounds
Seasonal leaderboard
Team Arena
2v2 coordinated play
Shared objectives
Training / Practice
Frame timing visualizer
Ghost replays of top players
Visual Style
Clean, minimalistic sci-fi arenas
High contrast for readability
60–120 FPS target (ProMotion)
👉 Performance clarity > visual noise.
Monetization (Fair & Competitive)
Skins (characters, arenas, effects)
Emotes / victory poses
Battle pass (cosmetic only)
🚫 No power boosts
🚫 No energy timers
🚫 No loot RNG
Technical Design (iOS-Optimized)
Native Swift
Metal / SpriteKit
Deterministic simulation
Server-authoritative logic
Rollback netcode (if real-time PvP)
Payment in Crypto
bitcastle .
Social Media Executive
Bangalore, India
Bangalore, India
Full time
Remote
About the Company:
Bitcastle is a cryptocurrency exchange and Forex (FX)platform which aims to create a new age of exchange where everyone can use it safely and have fun. As we expand and take a more active approach to global expansion, bitcastle is looking to hire a Full-TimeSocial Networking Service (SNS) Executive to join our team.
About the Role:
We are looking for a Social Networking Service Executive to join the Bitcastle team. In this role, you will lead and execute our social media strategy to grow our brand presence across various platforms. You will manage content creation, community engagement, and campaign execution to strengthen our position in the crypto industry. This is a full-time, fully remote position.
Manage and maintain a strong presence across social media platforms, including X, Instagram, Facebook, LinkedIn, and TikTok, ensuring consistent messaging and tone
Conduct social listening to identify trending topics and emerging content within the cryptocurrency space
Monitor community feedback and collaborate with sponsorship, product, operations, content, and PR teams to deliver timely and relevant content
Create, curate, and manage engaging content tailored to each social media platform
Build and nurture a strong online presence by actively engaging with users, responding to inquiries, and fostering a positive community environment
Partner with communities and brands to boost visibility and establish meaningful collaborations
Track and analyze metrics such as engagement, reach, and growth across social accounts
Plan, execute, and manage social media campaigns, including product launches, contests, promotions, and events
Optimize campaigns to maximize user engagement and overall impact
Requirements:
At least 2 years of experience in social media content creation and management
Proven ability to develop and execute successful content strategies
Experience using social media analytics tools
Preferred Qualification:
Prior experience in social media management within the crypto industry
Deep interest in Web3, blockchain, and cryptocurrency developments
Understanding of social media SEO principles and platform algorithms
Bitcastle is a cryptocurrency exchange and Forex (FX)platform which aims to create a new age of exchange where everyone can use it safely and have fun. As we expand and take a more active approach to global expansion, bitcastle is looking to hire a Full-TimeSocial Networking Service (SNS) Executive to join our team.
About the Role:
We are looking for a Social Networking Service Executive to join the Bitcastle team. In this role, you will lead and execute our social media strategy to grow our brand presence across various platforms. You will manage content creation, community engagement, and campaign execution to strengthen our position in the crypto industry. This is a full-time, fully remote position.
Manage and maintain a strong presence across social media platforms, including X, Instagram, Facebook, LinkedIn, and TikTok, ensuring consistent messaging and tone
Conduct social listening to identify trending topics and emerging content within the cryptocurrency space
Monitor community feedback and collaborate with sponsorship, product, operations, content, and PR teams to deliver timely and relevant content
Create, curate, and manage engaging content tailored to each social media platform
Build and nurture a strong online presence by actively engaging with users, responding to inquiries, and fostering a positive community environment
Partner with communities and brands to boost visibility and establish meaningful collaborations
Track and analyze metrics such as engagement, reach, and growth across social accounts
Plan, execute, and manage social media campaigns, including product launches, contests, promotions, and events
Optimize campaigns to maximize user engagement and overall impact
Requirements:
At least 2 years of experience in social media content creation and management
Proven ability to develop and execute successful content strategies
Experience using social media analytics tools
Preferred Qualification:
Prior experience in social media management within the crypto industry
Deep interest in Web3, blockchain, and cryptocurrency developments
Understanding of social media SEO principles and platform algorithms
Nahclimited
Unity Game Engineer, Frontend
Hong Kong
Hong Kong
Full time
Office
Our client is in search of a skilled Unity Engineer to join their innovative game development team focusing on AI-powered gaming experiences. The ideal candidate will be responsible for the overall architecture of the global content infrastructure, with a specific focus on the UI domain within the Unity engine. You will collaborate closely with UI Designers and Artists to translate design concepts from Figma into C# implementation.
Key Responsibilities:
Develop foundational UI and localization systems to support the game library and ensure consistency and scalability across all games.
Work with UI Designers to create Unity interfaces based on Figma designs and establish a library of responsive UI elements.
Establish a complete localization pipeline and internationalization framework, including modernizing legacy systems in existing games.
Build custom Unity Editor tools and workflows to facilitate the work of designers, content creators, and translators, while optimizing UI performance for different devices.
Implement engaging animations and interactions and participate in technical discussions to uphold high standards of code quality.
Qualifications:
Proficient in C# and Unity development with practical software development experience.
Thorough understanding of Unity UI development using tools like uGUI or UI Toolkit.
Familiarity with asset management techniques such as Addressables or Asset Bundles.
Experience with asynchronous programming in Unity, including tools like UniTask, async/await, or coroutines.
Key Responsibilities:
Develop foundational UI and localization systems to support the game library and ensure consistency and scalability across all games.
Work with UI Designers to create Unity interfaces based on Figma designs and establish a library of responsive UI elements.
Establish a complete localization pipeline and internationalization framework, including modernizing legacy systems in existing games.
Build custom Unity Editor tools and workflows to facilitate the work of designers, content creators, and translators, while optimizing UI performance for different devices.
Implement engaging animations and interactions and participate in technical discussions to uphold high standards of code quality.
Qualifications:
Proficient in C# and Unity development with practical software development experience.
Thorough understanding of Unity UI development using tools like uGUI or UI Toolkit.
Familiarity with asset management techniques such as Addressables or Asset Bundles.
Experience with asynchronous programming in Unity, including tools like UniTask, async/await, or coroutines.
Nahclimited
Software Engineer (Unity Multiplayer)
Hong Kong
Hong Kong
Full time
Office
Our client, a forward-thinking technology company at the forefront of redefining family entertainment with interactive, movement-based activities, is in search of a Software Engineer. The ideal candidate will play a pivotal role in streamlining developer workflows and empowering software teams to create innovative gaming experiences.
We are looking for a skilled Unity Game Engineer to help shape the future of multiplayer gaming. In this role, you will be instrumental in developing real-time network systems that allow seamless player interactions across different devices, enabling competitive and cooperative gameplay while maintaining responsiveness and fostering engaging social dynamics.
Responsibilities:
Spearhead the development of real-time multiplayer gaming features to ensure synchronized gameplay elements across global sessions.
Create and optimize secure matchmaking and networking functionalities tailored for family-friendly gaming experiences.
Modify and enhance existing single-player codebases to enable multiplayer capabilities without compromising the game's overall experience.
Address technical complexities like jitter management, bandwidth efficiency, and ensuring consistency between servers and clients.
Collaborate closely with artists, designers, and core platform teams to deliver immersive connected gaming experiences.
Requirements:
A minimum of 3 years of professional software development experience.
Proficient in C# and experienced in Unity development.
Thorough understanding of networking principles, including remote procedure calls, state synchronization, and authorization models.
Hands-on familiarity with Unity networking tools like Photon Fusion, Mirror, or Netcode.
Strong grasp of asynchronous programming techniques.
We are looking for a skilled Unity Game Engineer to help shape the future of multiplayer gaming. In this role, you will be instrumental in developing real-time network systems that allow seamless player interactions across different devices, enabling competitive and cooperative gameplay while maintaining responsiveness and fostering engaging social dynamics.
Responsibilities:
Spearhead the development of real-time multiplayer gaming features to ensure synchronized gameplay elements across global sessions.
Create and optimize secure matchmaking and networking functionalities tailored for family-friendly gaming experiences.
Modify and enhance existing single-player codebases to enable multiplayer capabilities without compromising the game's overall experience.
Address technical complexities like jitter management, bandwidth efficiency, and ensuring consistency between servers and clients.
Collaborate closely with artists, designers, and core platform teams to deliver immersive connected gaming experiences.
Requirements:
A minimum of 3 years of professional software development experience.
Proficient in C# and experienced in Unity development.
Thorough understanding of networking principles, including remote procedure calls, state synchronization, and authorization models.
Hands-on familiarity with Unity networking tools like Photon Fusion, Mirror, or Netcode.
Strong grasp of asynchronous programming techniques.
Nahclimited
Software Engineer (Unity Frontend)
Hong Kong
Hong Kong
Full time
Office
Our client, a forward-thinking tech company pioneering family entertainment with engaging, movement-based experiences, is in search of a Software Engineer. The ideal candidate will play a key role in enhancing developer workflows and empowering software teams to create innovative games.
They are looking for a skilled Unity Game Engineer to join their dynamic game development team and lead the design and construction of presentation layers within the Unity engine. This role will focus on shaping the UI component of a global game library developed in Unity. Responsibilities will include designing scalable systems to support intuitive interfaces, seamless user experiences, and top-tier performance across various game titles.
Responsibilities:
Lead the design and implementation of core UI frameworks utilized in multiple game titles.
Translate UI/UX designs into efficient Unity C# code to maintain high performance.
Develop shared UI component libraries for consistency and reusability.
Implement and streamline localization systems to accommodate multi-language releases.
Build customized Unity editor tools and workflows to empower designers and developers.
Optimize UI performance on target platforms by managing draw calls, memory usage, and responsiveness.
Participate actively in code reviews and collaborative technical planning sessions.
Requirements:
Minimum of 3 years of professional software development experience.
Proficiency in C# and Unity, with a strong focus on UI frameworks such as uGUI or UI Toolkit.
Thorough understanding of asset pipelines, asynchronous coding practices, and optimization techniques in Unity.
Experience in implementing scalable UI architectures like MVVM/MVC/MVP.
Familiarity with localization strategies and tools.
They are looking for a skilled Unity Game Engineer to join their dynamic game development team and lead the design and construction of presentation layers within the Unity engine. This role will focus on shaping the UI component of a global game library developed in Unity. Responsibilities will include designing scalable systems to support intuitive interfaces, seamless user experiences, and top-tier performance across various game titles.
Responsibilities:
Lead the design and implementation of core UI frameworks utilized in multiple game titles.
Translate UI/UX designs into efficient Unity C# code to maintain high performance.
Develop shared UI component libraries for consistency and reusability.
Implement and streamline localization systems to accommodate multi-language releases.
Build customized Unity editor tools and workflows to empower designers and developers.
Optimize UI performance on target platforms by managing draw calls, memory usage, and responsiveness.
Participate actively in code reviews and collaborative technical planning sessions.
Requirements:
Minimum of 3 years of professional software development experience.
Proficiency in C# and Unity, with a strong focus on UI frameworks such as uGUI or UI Toolkit.
Thorough understanding of asset pipelines, asynchronous coding practices, and optimization techniques in Unity.
Experience in implementing scalable UI architectures like MVVM/MVC/MVP.
Familiarity with localization strategies and tools.