Security Engineer (AAA Game)

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)

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

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.

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.

Senior VFX Artist

Location: Tokyo, Japan

About us:

Limit Break adheres to the core values of deep expertise, individual and industry growth, as well as exceptional craftsmanship. As a leading power in the global mobile gaming industry, we are devoted to transcending the boundaries of gaming to revolutionize digital markets and cultivate vibrant communities. By leveraging cutting-edge technology and cryptocurrency, we aim to connect people worldwide through creative experiences.

Supported by prominent investors like Buckley Ventures and Paradigm Ventures, Limit Break is actively seeking talented individuals who will help shape the future of the gaming industry.

Role Overview:

Limit Break is in search of a Senior VFX Artist to establish and oversee the VFX style and production process for our upcoming game. This role involves collaborating closely with various teams to achieve visual excellence while adhering to technical and design requirements. It provides an opportunity to build a team and bring your vision to life by crafting a new VFX style and pipeline.

Responsibilities:

Collaborate with the Art Director and Concept Art team to lead the creation of top-tier VFX simulations, textures, and materials.

Establish standards, processes, documentation, and training programs.

Ensure that VFX assets meet high technical and efficiency standards.

Manage and assign tasks to the team, both internally and externally.

Coordinate with Production to organize and oversee the daily activities of the VFX team.

Partner with Engineering and Technical Art teams to enhance the VFX pipeline.

Troubleshoot a range of issues in DCC tools and within the game environment.

Requirements:

Demonstrated passion for iterative design and fostering a collaborative culture.

5-7 years of hands-on VFX production experience, including team leadership.

Profound understanding of timing, motion, and volume preservation.

Proficiency in industry-standard DCC tools like Maya, Houdini, and Photoshop.

Solid grasp of performance budgets and technical requirements for optimized content creation.

Strong organizational and communication skills, both written and verbal.

Experience in managing remote teams and collaborating with other departments effectively.

Extensive background working with modern game engines such as Unreal, Unity, or proprietary technologies.

Preferred Skills:

Experience in profiling and optimizing art assets for memory and performance constraints.

Broad interest in real-time rendering technologies and art asset creation tools.

Background in procedurally generated content creation.

How to Apply:

If you are a driven and confident individual seeking an exciting role in an international blockchain gaming company, consider this opportunity. Apply to explore further. Limit Break values diversity and ensures equal opportunity for all applicants based on legally protected characteristics.

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