Head of Growth - Performance
About Us
Immutable is a global technology company revolutionizing the gaming industry by leveraging Ethereum for game development. We are dedicated to shaping the future of gaming and creating innovative player experiences. Founded in 2018, Immutable has rapidly grown to unicorn status, with substantial funding and valuation.
The Immutable Group comprises the Immutable Platform, a leading platform for Ethereum game development powering popular games like RavenQuest and Immortal Rising 2, and Immutable Games, a prominent force in web3 game creation and publishing with standout titles such as Gods Unchained and Guild of Guardians.
We aspire to bridge the gap between digital and real-world experiences, with plans for exponential growth and a vision to become the fastest-growing gaming chain by 2024, with over 250 games lined up.
About The Role
Data stands at the forefront of our strategies for growth, performance optimization, and player engagement at Immutable.
In the role of Head of Growth - Performance, your primary focus will be on developing, executing, and refining data-driven growth tactics across diverse channels, ensuring decisions are informed by insights and experimentation. Your proficiency in conversion rate optimization (CRO), performance marketing analytics, and lifecycle marketing will play a pivotal role in driving our business success. You will help us scale efficiently while enhancing player engagement and retention.
Key Responsibilities
Spearhead Conversion Rate Optimization (CRO) initiatives, leading experimentation across critical funnels with ambitious goals and rigorous testing methodologies
Drive Performance Marketing efforts, optimizing advertising expenditure efficiency, minimizing customer acquisition costs, conducting creative testing, and implementing advanced attribution modeling
Oversee Lifecycle Marketing Optimization, employing data-driven segmentation tactics to enhance engagement metrics and boost customer lifetime value through retention campaigns
Construct and refine measurement frameworks to track and analyze growth performance meticulously, ensuring strategic decisions are made based on actionable insights
Collaborate closely with marketing, product, and data teams to harmonize growth strategies with broader business objectives
Qualifications
Demonstrated experience in a data-centric growth role, preferably in gaming, Web3, or tech sectors
Proficiency in leading growth teams
Expertise in conversion rate optimization, performance marketing, and lifecycle marketing
Strong analytical skills, capable of translating intricate data into clear insights and strategic actions
Experience with experimentation frameworks, A/B testing, and attribution modeling
Proven track record of driving measurable business outcomes through data-driven decision-making
Exceptional stakeholder management and collaboration skills
Benefits Overview
Competitive salaries and Employee Stock Options
Flexible working model combining office work and remote options
Allowances for home office setup and internet/phone expenses
Support for personal growth through financial aid for courses and events, and free online courses access
Solid health and wellbeing benefits, mental health counseling services, and fitness assistance
Parental leave benefits and additional paid annual leave
Commitment to diversity and inclusion in the workplace with a 2025 Circle Back Initiative Employer status
We genuinely appreciate your interest in shaping the future of web3 gaming alongside us.
Senior iOS developer for GameDev startup
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)
Social Media Executive
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
Project Manager, Unity
Our client is in search of a skilled and proactive Project Manager to join their content operation team. The ideal candidate will possess excellent attention to detail and a strong focus on achieving results, specifically in overseeing localization projects across various languages and regions. The primary responsibilities will involve managing the content production process and ensuring the smooth execution and delivery of projects.
Responsibilities:
Lead the planning, execution, and successful completion of content projects, ensuring adherence to timelines, resource allocation, and key milestones.
Collaborate closely with cross-functional teams to facilitate clear communication among stakeholders.
Develop and implement efficient processes for handling different localization projects.
Coordinate with external developers for outsourced initiatives.
Provide support to other content team members as required for ad-hoc requests.
Requirements:
Bachelor's degree in Computer Science, Game Design and Development, or a related field, coupled with at least 3 years of experience in IT services or the gaming industry.
Proficient in project management methodologies, tools, and industry best practices.
Knowledge of Unity is considered a bonus.
Strong attention to detail and ability to manage multiple priorities independently.
Excellent communication and collaboration skills.
Passion for game development and emerging technologies.
Senior Data Scientist (Japan)
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.
Unity Game Engineer, Frontend
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.