Senior Backend Web Engineer
Status
Ukraine
Full time
Remote
Compensation is not specified
Role
Backend Engineer
Description
Summary: Improbable, a pioneer in uncharted technological innovations for over a decade, endeavors to enrich human connections and enhance lives through building vast virtual worlds to revolutionize gaming, web3, and similar industries. Delve into groundbreaking technology projects from Morpheus to M2, pondering unique questions and transforming visionary answers into the future landscape.
Responsibilities:
- Drive the forefront in defining the possibilities of the metaverse by designing interconnected, engaging virtual realms.
- Engage in creative and technical pursuits as a Backend Web Developer within the Improbable Metaverse Group, supporting the development of metaverse web applications.
Your Opportunity:
- Spearhead technical initiatives independently to lay the foundation for pioneering products' iterative growth.
- Shape the product roadmap, regulate the team's vision and strategy, and advise team leadership with insightful inputs.
- Strategize and execute short- and long-term roadmaps by balancing business objectives, user experience, and sustainable technical architecture.
- Contribute to team strategy enhancement, tool refinement, process optimization, and fostering a cohesive team culture.
- Provide mentorship and guidance to fellow engineers for professional growth.
Desired Qualifications:
- Minimum of 5 years of professional, full-time software development exposure.
- At least 1 year of practical experience in managing production services.
- Proficiency in popular cloud solutions (AWS, GCP, Azure) and modern programming languages like TypeScript, Python, or Go.
- Knowledge of front-end technologies such as TypeScript, React, and CSS, along with adeptness in Git version control.
- Previous experiences in code review processes and API development while upholding high code quality standards.
- Agile mindset with the ability to manage multiple projects and codebases effectively.
Working Arrangements:
The position offers flexibility with remote, hybrid, or in-office work settings. Improbable's office in Spitalfields, London, provides a conducive workspace, but remote work options are equally supported as part of our 'Flexa' certified platform, focusing on employee autonomy and flexibility.
About Us:
At Improbable, we are committed to nurturing an inclusive environment where individuals can excel and feel a sense of belonging. Our belief in diverse contributions, strong values, and a positive culture guides us towards collective success without discrimination based on various protected categories. If any adjustments are needed throughout the application process or discussing specific needs, please reach out to us for a confidential conversation.
[Optional Emphasized Links: Life at Improbable, Diversity, Inclusion and Belonging]
Skills Required
Improbable
Website
www.improbable.ioCompany size
Not specified
Location
United Kingdom
Description
Not specified
Status
George I
Game Studio Hiring: Full-Stack, Mobile & 3D Web Developers
Part time
Remote
About Us
We are an established game studio developing HeroWarrior, a Unity-based web battle game that has been in active development for three years. Our project is supported by GameWorld (Netherlands) and we're currently preparing for version 2.0 with an expanded development team.
Following strategic restructuring in 2022, we're now building a distributed team across Europe and seeking talented developers to join our long-term project.
Open Positions
We are actively recruiting for the following roles:
UI/UX Designer
Specialization in gaming interface design
Experience with Unity UI systems preferred
Full-Stack Developers
Backend and frontend development for web platform
Experience with game-related web services preferred
Mobile Developers
Native mobile app development
Cross-platform experience valued
Unity Developers
Gameplay mechanics implementation
3+ years Unity experience required
3D Web Developers
WebGL and Three.js expertise
Browser-based 3D rendering experience
hat We Offer
Project Commitment: We're seeking long-term partnerships, not short-term contractors. This is an opportunity to grow with an established project backed by industry partners.
Compensation Structure:
Flexible payment options: hourly rates, monthly retainers, or milestone-based compensation
Rates negotiable based on experience and role
Initial evaluation period followed by standard employment terms
Work Environment:
Remote-friendly distributed team
Collaborative development process
Opportunity to work on a commercially-backed game project
Application Requirements
Please submit the following:
Portfolio/Resume - Detailed work history and relevant projects
Rate Expectations - Your preferred compensation structure and rates
Code Samples - GitHub repository, portfolio links, or previous work examples
Availability - Expected start date and commitment level
Evaluation Process Acknowledgment - Confirmation of willingness to complete a brief technical assessment
Ideal Candidates
Demonstrated passion for game development
Strong technical skills in relevant technologies
Experience working on long-term projects
Collaborative mindset and professional communication
Interest in building innovative gaming experiences
Next Steps
We are moving quickly to fill these positions. Qualified candidates will be contacted within one week for initial discussions and technical evaluation.
To apply, please send your complete application materials to vlad@gameworldcompany.com
We are an established game studio developing HeroWarrior, a Unity-based web battle game that has been in active development for three years. Our project is supported by GameWorld (Netherlands) and we're currently preparing for version 2.0 with an expanded development team.
Following strategic restructuring in 2022, we're now building a distributed team across Europe and seeking talented developers to join our long-term project.
Open Positions
We are actively recruiting for the following roles:
UI/UX Designer
Specialization in gaming interface design
Experience with Unity UI systems preferred
Full-Stack Developers
Backend and frontend development for web platform
Experience with game-related web services preferred
Mobile Developers
Native mobile app development
Cross-platform experience valued
Unity Developers
Gameplay mechanics implementation
3+ years Unity experience required
3D Web Developers
WebGL and Three.js expertise
Browser-based 3D rendering experience
hat We Offer
Project Commitment: We're seeking long-term partnerships, not short-term contractors. This is an opportunity to grow with an established project backed by industry partners.
Compensation Structure:
Flexible payment options: hourly rates, monthly retainers, or milestone-based compensation
Rates negotiable based on experience and role
Initial evaluation period followed by standard employment terms
Work Environment:
Remote-friendly distributed team
Collaborative development process
Opportunity to work on a commercially-backed game project
Application Requirements
Please submit the following:
Portfolio/Resume - Detailed work history and relevant projects
Rate Expectations - Your preferred compensation structure and rates
Code Samples - GitHub repository, portfolio links, or previous work examples
Availability - Expected start date and commitment level
Evaluation Process Acknowledgment - Confirmation of willingness to complete a brief technical assessment
Ideal Candidates
Demonstrated passion for game development
Strong technical skills in relevant technologies
Experience working on long-term projects
Collaborative mindset and professional communication
Interest in building innovative gaming experiences
Next Steps
We are moving quickly to fill these positions. Qualified candidates will be contacted within one week for initial discussions and technical evaluation.
To apply, please send your complete application materials to vlad@gameworldcompany.com
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
Winnables
Full Stack Developer (Front End Leaning)
Full time
Remote
Job Description:
Winnables.com is looking for a creative front-end-leaning Full Stack Developer who loves bringing slick, engaging user experiences to life while still caring about the behind-the-scenes details.
You’ll collaborate closely with designers and product leads, iterate quickly on new ideas, and see the direct impact of your work in the hands of players around the world.
If you enjoy mixing imaginative front-end polish with just enough back-end know-how to make the magic happen, we’d love to hear from you.
Key Responsabilities:
Transform design mock-ups and product concepts into polished, responsive game screens, animations, and flows.
Collaborate daily with designers, product leads, and blockchain engineers to prototype, ship, and iterate on new games or new features.
Continuously test, debug, and optimize for performance across devices and network conditions.
Review code, share best practices, and help keep our small codebase clean, secure, and easy to extend.
Use player feedback and analytics to refine existing features and guide new ideas from concept to launch.
Champion accessibility and web-standards compliance, ensuring every player—regardless of device or ability—has a first-class experience.
What You’ll Be Building
Build interactive mini-games that deliver smooth, responsive gameplay.
Create real-time multiplayer features and live game mechanics.
Develop pack-opening systems with eye-catching, engaging animations.
Engineer raffle and lottery-style games that are fully on-chain and provably fair.
Implement Plinko and other physics-based games, tuned for fun and balance.
Craft user-friendly interfaces that perform flawlessly across mobile, tablet, and desktop.
Qualifications:
Tech Stack:
Core: TypeScript · React & Next.js · Node.js · Zustand · WebSockets & REST
Data & Infra: PostgreSQL (Supabase) · Redis · Docker · GitHub
Observability: Grafana · PostHog
Design & Web3: Figma · viem / wagmi
What We're Looking For
Strong experience with TypeScript and modern JavaScript
Solid understanding of React and Next.js ecosystem
Experience building real-time applications with WebSockets
Familiarity with Node.js backend development
Knowledge of PostgreSQL and database design
Experience with responsive design and mobile-first development
Understanding of state management patterns (Zustand experience preferred)
Understanding of web security fundamentals (CSRF protection, secure authentication flows, input validation)
Interest in gaming mechanics and interactive user experience.
Nice to Have
Experience with gaming or interactive application development
Knowledge of blockchain technologies and Web3 integration
Familiarity with monitoring tools (Grafana, PostHog)
Experience with Docker and containerization
Understanding of real-time multiplayer game architecture
Company Description:
Winnables.com is on a mission to re-imagine iGaming through full on-chain transparency. We believe players deserve provably fair odds, transparent math, and no black-box RNGs. Every spin and ticket purchase is recorded immutably on Ethereum, so anyone can audit the outcome, track prize pools, or even build their own analytics on top of our contracts.
All of our games are designed and engineered 100% in-house by a small, senior team that blends game design, cryptography, and smart-contract security. We currently operate two flagship experiences:
Raffles – transparent prize drawings where every ticket lives on-chain, letting players verify fairness before and after the draw.
Loot Packs – blockchain-powered loot boxes that reveal randomized rewards with engaging pack-opening animations.
We’re still just getting started. The roadmap is full of green-field challenges—and real, measurable impact on an industry ripe for change. Join us and help craft the next generation of fair, fun, and truly player-owned gaming.
Winnables.com is looking for a creative front-end-leaning Full Stack Developer who loves bringing slick, engaging user experiences to life while still caring about the behind-the-scenes details.
You’ll collaborate closely with designers and product leads, iterate quickly on new ideas, and see the direct impact of your work in the hands of players around the world.
If you enjoy mixing imaginative front-end polish with just enough back-end know-how to make the magic happen, we’d love to hear from you.
Key Responsabilities:
Transform design mock-ups and product concepts into polished, responsive game screens, animations, and flows.
Collaborate daily with designers, product leads, and blockchain engineers to prototype, ship, and iterate on new games or new features.
Continuously test, debug, and optimize for performance across devices and network conditions.
Review code, share best practices, and help keep our small codebase clean, secure, and easy to extend.
Use player feedback and analytics to refine existing features and guide new ideas from concept to launch.
Champion accessibility and web-standards compliance, ensuring every player—regardless of device or ability—has a first-class experience.
What You’ll Be Building
Build interactive mini-games that deliver smooth, responsive gameplay.
Create real-time multiplayer features and live game mechanics.
Develop pack-opening systems with eye-catching, engaging animations.
Engineer raffle and lottery-style games that are fully on-chain and provably fair.
Implement Plinko and other physics-based games, tuned for fun and balance.
Craft user-friendly interfaces that perform flawlessly across mobile, tablet, and desktop.
Qualifications:
Tech Stack:
Core: TypeScript · React & Next.js · Node.js · Zustand · WebSockets & REST
Data & Infra: PostgreSQL (Supabase) · Redis · Docker · GitHub
Observability: Grafana · PostHog
Design & Web3: Figma · viem / wagmi
What We're Looking For
Strong experience with TypeScript and modern JavaScript
Solid understanding of React and Next.js ecosystem
Experience building real-time applications with WebSockets
Familiarity with Node.js backend development
Knowledge of PostgreSQL and database design
Experience with responsive design and mobile-first development
Understanding of state management patterns (Zustand experience preferred)
Understanding of web security fundamentals (CSRF protection, secure authentication flows, input validation)
Interest in gaming mechanics and interactive user experience.
Nice to Have
Experience with gaming or interactive application development
Knowledge of blockchain technologies and Web3 integration
Familiarity with monitoring tools (Grafana, PostHog)
Experience with Docker and containerization
Understanding of real-time multiplayer game architecture
Company Description:
Winnables.com is on a mission to re-imagine iGaming through full on-chain transparency. We believe players deserve provably fair odds, transparent math, and no black-box RNGs. Every spin and ticket purchase is recorded immutably on Ethereum, so anyone can audit the outcome, track prize pools, or even build their own analytics on top of our contracts.
All of our games are designed and engineered 100% in-house by a small, senior team that blends game design, cryptography, and smart-contract security. We currently operate two flagship experiences:
Raffles – transparent prize drawings where every ticket lives on-chain, letting players verify fairness before and after the draw.
Loot Packs – blockchain-powered loot boxes that reveal randomized rewards with engaging pack-opening animations.
We’re still just getting started. The roadmap is full of green-field challenges—and real, measurable impact on an industry ripe for change. Join us and help craft the next generation of fair, fun, and truly player-owned gaming.
ghed santos
Founding Head of Engineering
San Francisco, USA
San Francisco, USA
Full time
Remote
About The Project:The project is a venture-backed stealth mode project having raised $2 million and building a Social Intelligence Engine designed to power smarter, faster crypto trading. We're combining advanced data infrastructure and real-time intelligence to unlock new trading possibilities. About the Role:We're looking for a tech-savvy, investor-facing leader with an engineering background to represent us on the frontlines. This is not a research role it's about amplifying our voice, building relationships, and being the bridge between our technology and the world. Key Responsibilities:1）Represent us externally at hackathons, pitch events, conferences, and investor meetings.2）Be our lead evangelist clearly explaining our tech vision to both technical and non-technical audiences.3）Drive fundraising efforts with compelling presentations, clear strategy narratives, and investor Q&A.4）Partner closely with engineering/product to demo the platform, shape the roadmap, and turn market feedback into action. Requirements:1）Strong engineering background (AI, blockchain, data infrastructure, or similar).2）Proven experience in investor-facing roles, including fundraising and pitching.3）Excellent presentation and communication skills, with a track record of representing projects publicly.4）Experience participating in or leading hackathons, demos, and tech events.5）Understanding of consumer behavior data in gaming and apps is a plus.6）Familiarity with Web3, crypto, and developer communities. Compensation:Competitive salary + equity + team token + and performance-based incentives.
Payment in Crypto
Immutable
Customer Growth Lead (Korea)
South Korea
South Korea
Full time
Remote
About Us
Immutable is a globally recognized technology organization dedicated to empowering the leading platform for creating games on Ethereum. We are focused on reshaping the gaming landscape by revolutionizing how games are played and discovered. Established in 2018, Immutable has rapidly achieved unicorn status, raising over AUD $300M+ with a valuation of AUD $3.5 billion.
Immutable comprises the Immutable Platform, a key player in game development on Ethereum responsible for successful titles like RavenQuest and Immortal Rising 2, alongside Immutable Games, a prominent force in web3 game development and publishing renowned for titles such as Gods Unchained and Guild of Guardians.
Our vision is to bring digital worlds to life, with plans for vast global expansion as the fastest-growing gaming chain by 2024, with more than 250 games signed – a number exceeding all previous years combined.
About The Role
Immutable is in search of a talented Customer Growth Lead in Korea to drive the growth, engagement, and scalability of game studios on the Immutable platform. This role necessitates a high level of collaboration across growth, strategy, and execution. You will collaborate with studios to uncover growth opportunities, design data-informed experiments, and drive measurable outcomes in areas such as acquisition, engagement, and monetization.
We are seeking an individual who blends structured problem-solving with practical execution. Joining a dynamic global team, you will play a pivotal role in shaping how the next generation of games engages and retains players within the web3 ecosystem. If you excel in environments that prioritize analytical thinking, creativity, and speed, this role provides the opportunity to translate ideas into action and directly impact the success of our partners.
Responsibilities
Develop and implement growth strategies to achieve measurable commercial outcomes for Korean partner studios.
Identify key levers in acquisition, engagement, and monetization, designing cohesive experiments to test them.
Transform insights from growth initiatives into frameworks and playbooks scalable across diverse markets.
Work closely with product, marketing, and analytics teams to drive player growth and enhance studio success.
Provide guidance to studio leadership regarding go-to-market strategies, performance insights, and expansion opportunities.
Monitor and report on key outcomes like MRR, retention, and conversion to guide future investments and priorities.
Requirements
Strong strategic background, preferably with at least three years in top-tier consulting followed by hands-on experience in tech, startups, gaming, or digital environments.
Proven ability to solve complex problems and translate insights into strategic actions.
Proficient in analytics, with a keen aptitude for interpreting data and business performance metrics.
Proactive attitude towards achieving tangible outcomes in ambiguous settings.
Excellent communication and collaboration skills in Korean and English.
Genuine interest in gaming, digital ecosystems, and emerging technologies like web3.
Preferred Skills
Prior exposure to web3, gaming, or digital assets would be advantageous.
Experience in growth, performance marketing, or product experimentation.
Familiarity with web3 ecosystems, NFT campaigns, or community-driven growth.
Background in developing and scaling growth frameworks in high-growth environments.
Exposure to cross-market initiatives across Asia or other global regions.
Benefits
Our wide range of benefits for all employees globally includes competitive salaries, Employee Stock Options, medical and insurance coverage, flexible working arrangements, work-from-home allowances, and opportunities for continuous learning and personal development. Additionally, we prioritize employee health and well-being, offer parental leave, birthday leave, and other supportive initiatives to help our team thrive.
Additional Information
Immutable is dedicated to creating an inclusive and diverse workplace, valuing varied perspectives and experiences as integral to our continued success. As a Circle Back Initiative Employer, we ensure we respond to every applicant personally.
Immutable is a globally recognized technology organization dedicated to empowering the leading platform for creating games on Ethereum. We are focused on reshaping the gaming landscape by revolutionizing how games are played and discovered. Established in 2018, Immutable has rapidly achieved unicorn status, raising over AUD $300M+ with a valuation of AUD $3.5 billion.
Immutable comprises the Immutable Platform, a key player in game development on Ethereum responsible for successful titles like RavenQuest and Immortal Rising 2, alongside Immutable Games, a prominent force in web3 game development and publishing renowned for titles such as Gods Unchained and Guild of Guardians.
Our vision is to bring digital worlds to life, with plans for vast global expansion as the fastest-growing gaming chain by 2024, with more than 250 games signed – a number exceeding all previous years combined.
About The Role
Immutable is in search of a talented Customer Growth Lead in Korea to drive the growth, engagement, and scalability of game studios on the Immutable platform. This role necessitates a high level of collaboration across growth, strategy, and execution. You will collaborate with studios to uncover growth opportunities, design data-informed experiments, and drive measurable outcomes in areas such as acquisition, engagement, and monetization.
We are seeking an individual who blends structured problem-solving with practical execution. Joining a dynamic global team, you will play a pivotal role in shaping how the next generation of games engages and retains players within the web3 ecosystem. If you excel in environments that prioritize analytical thinking, creativity, and speed, this role provides the opportunity to translate ideas into action and directly impact the success of our partners.
Responsibilities
Develop and implement growth strategies to achieve measurable commercial outcomes for Korean partner studios.
Identify key levers in acquisition, engagement, and monetization, designing cohesive experiments to test them.
Transform insights from growth initiatives into frameworks and playbooks scalable across diverse markets.
Work closely with product, marketing, and analytics teams to drive player growth and enhance studio success.
Provide guidance to studio leadership regarding go-to-market strategies, performance insights, and expansion opportunities.
Monitor and report on key outcomes like MRR, retention, and conversion to guide future investments and priorities.
Requirements
Strong strategic background, preferably with at least three years in top-tier consulting followed by hands-on experience in tech, startups, gaming, or digital environments.
Proven ability to solve complex problems and translate insights into strategic actions.
Proficient in analytics, with a keen aptitude for interpreting data and business performance metrics.
Proactive attitude towards achieving tangible outcomes in ambiguous settings.
Excellent communication and collaboration skills in Korean and English.
Genuine interest in gaming, digital ecosystems, and emerging technologies like web3.
Preferred Skills
Prior exposure to web3, gaming, or digital assets would be advantageous.
Experience in growth, performance marketing, or product experimentation.
Familiarity with web3 ecosystems, NFT campaigns, or community-driven growth.
Background in developing and scaling growth frameworks in high-growth environments.
Exposure to cross-market initiatives across Asia or other global regions.
Benefits
Our wide range of benefits for all employees globally includes competitive salaries, Employee Stock Options, medical and insurance coverage, flexible working arrangements, work-from-home allowances, and opportunities for continuous learning and personal development. Additionally, we prioritize employee health and well-being, offer parental leave, birthday leave, and other supportive initiatives to help our team thrive.
Additional Information
Immutable is dedicated to creating an inclusive and diverse workplace, valuing varied perspectives and experiences as integral to our continued success. As a Circle Back Initiative Employer, we ensure we respond to every applicant personally.