AI Lead Engineer (Anti-Fraud/Scammer)
Singapore
Full time
Office
Compensation is not specified
Role
Machine Learning Engineer
Description
Company Overview:
We are a forward-thinking organization at the forefront of leveraging technology to redefine the future landscape. Our company, established in 2017, is dedicated to transforming global systems through our state-of-the-art digital asset exchange, Web3 platform, and blockchain ecosystems. With a focus on offering diverse and advanced products, solutions, and trading tools, we stand as a trusted platform with over 50 million users across more than 180 countries worldwide. We envision a financial future supported by blockchain and decentralized finance, aiming to provide financial access to all.
Our company values innovation in product creation and actively engages in social responsibility initiatives, encouraging employees to participate in community activities. With a globally distributed team of over 3,000 individuals, we believe that embracing diversity and fostering inclusion generates enduring value for the industry.
Overview:
We are in search of a proficient Lead Engineer to drive the implementation of sophisticated AI technologies, notably transformer models, to combat fraudulent activities efficiently. This critical role demands an AI expert in fraud detection systems, capable of integrating intricate models into our risk infrastructure to uphold and enhance platform security.
Primary Responsibilities:
- Lead the development and deployment of advanced AI models, particularly focusing on transformer models for the detection and mitigation of fraudulent activities.
- Utilize transformer models to analyze sequential user data, enabling a deeper understanding of behavioral patterns indicative of potential fraud.
- Collaborate with data engineering teams to optimize data inputs and train transformer models to secure high accuracy in fraud detection.
- Continuously assess and refine AI model performance, incorporating the latest machine learning and AI techniques.
- Demonstrate the models to stakeholders in alignment with their expectations, and provide mentorship to team members on AI technologies and methodologies. Oversee anti-fraud work planning and project management.
Required Qualifications:
- Possession of an advanced degree in Computer Science, Data Science, or related fields.
- Minimum of 10 years in technology roles, including a robust experience of at least 5 years in fraud detection and prevention, with hands-on involvement in AI and machine learning technologies.
- Demonstrable expertise in deep learning model development, user behavior analytics, and fraud detection implementations.
- Hands-on practice with feature design, transformer, and clustering algorithms.
- Strong leadership skills in managing technical teams and delivering complex systems focused on fraud prevention and risk mitigation.
- Proficiency in problem-solving, strategic thinking, and communication is essential.
Desired Qualifications:
- Exposure to startup environments, fast-paced companies, or reputable technology firms.
- Previous research publications or contributions to cybersecurity domains, particularly concerning fraud detection and platform security.
Benefits:
- Competitive total compensation package.
- Learning and development programs, with education subsidies for employee growth.
- Various team-building initiatives and engaging company events.
- Additional perks to be discussed throughout the application process.
Skills Required
OKX
Website
www.okx.comCompany size
Not specified
Location
United States
Description
Not specified
xelora S
Senior solidity developer for our CritiQ project
New York, USA
New York, USA
Full time
Remote
We're currently building CritiQ, an innovative insurance platform.
It's an on-chain, parametric-first insurance solution designed to deliver fast, fair, and fully transparent coverage.
Our initial offerings include Flight Delay, Smart Contract Risk, and Commercial Property insurance, with plans to expand as oracle infrastructure develops.
It's an on-chain, parametric-first insurance solution designed to deliver fast, fair, and fully transparent coverage.
Our initial offerings include Flight Delay, Smart Contract Risk, and Commercial Property insurance, with plans to expand as oracle infrastructure develops.
Payment in Crypto
xelora S
senior solidity developer
New York, USA
New York, USA
Part time
Remote
We're currently building CritiQ, an innovative insurance platform.
It's an on-chain, parametric-first insurance solution designed to deliver fast, fair, and fully transparent coverage.
Our initial offerings include Flight Delay, Smart Contract Risk, and Commercial Property insurance, with plans to expand as oracle infrastructure develops.
It's an on-chain, parametric-first insurance solution designed to deliver fast, fair, and fully transparent coverage.
Our initial offerings include Flight Delay, Smart Contract Risk, and Commercial Property insurance, with plans to expand as oracle infrastructure develops.
Payment in Crypto
Alarab Company
Operator exchange
Giza, Egypt
Giza, Egypt
Full time
Remote
Exchange USD to USDT into crypto currency and USDT to USD and eur account.USD/ EUR/ to USDT/BTC/ BNB
Payment in Crypto
Travala
Senior Business Development Manager (Listings)
Full time
Remote
About Travala
Founded in 2017 and now backed by industry giant Binance, Travala is the leading crypto-native travel booking service, offering 2,200,000+ properties across 230 countries, 600+ airlines, 50,000+ car rental locations, and 400,000+ activities globally.
Travala is a champion of cryptocurrency adoption, accepting over 100 leading cryptocurrencies alongside traditional payment methods. In addition to unbeatable prices via its Best Price Guarantee, Smart members on Travala can also enjoy additional discounts and loyalty rewards for eligible bookings made on the platform.
By incorporating next-generation blockchain technology and tokenised loyalty rewards, Travala.com is creating a cutting-edge experience at the intersection of Web3 and travel.
About the Role
Travala.com is the world's leading Web3 travel booking platform, with AVA as its native utility token. We're hiring a Senior BD Manager to own new coin listings on Travala end-to-end — sourcing targets, pitching, negotiating, and closing deals. Listings may be structured as a traditional paid fee or as an in-kind token arrangement, decided deal by deal — the specific structure isn't the focus of this role, closing quality listings is.
This is a hunter role, not a strategist or management role. You'll have sales collateral and initial market research to build from - you're not starting from a completely blank page.
While this is a fully remote position, candidates based in the Asia-Pacific (APAC) region are preferred to align with working hours across our wider growth team and key internal departments, with flexibility for exceptional candidates in other locations.
Key Responsibilities
Own the full listing deal cycle: prospecting, outreach, pitching, negotiation, and closing - across paid listings and in-kind/token-based listing arrangements
Build and actively manage a prioritized pipeline of target projects, using our existing research as a starting point and expanding it over time
Represent Travala directly to token project founders, BD leads, and treasury teams to pitch new listings
Negotiate commercial terms within approved guardrails, and manage the process through to signature
Keep leadership updated on pipeline status, deal velocity, and market feedback on our listing offering
Build strategic token partner relationships to drive revenue, while identifying broader ecosystem or co-marketing leads for internal teams.
Act as primary BD liaison for internal teams (product, legal, marketing, finance) to coordinate workflows, documentation, and compliant token integration.
Research and stay up to date with cryptocurrency market trends, emerging tokens, and innovative blockchain projects to identify potential listing opportunities.
What's Not in Scope
To keep this role focused and avoid overlap with our marketing team, the following sit outside this role:
Post-signature announcements, co-marketing, and campaign work - owned by our CMO's team once a deal is signed.
Broader strategic partnerships beyond listings (e.g. major platform integrations) - owned separately.
Managing other BD staff -this is an individual contributor role, not a management position.
What You'll Have From Day One
Sales collateral and initial market research to support outreach and pipeline-building
Direct access to leadership for deal support and approvals - no bureaucratic layers slowing down a close
Requirements
5+ years of professional experience in business development or sales within the blockchain or cryptocurrency industry.
Deep understanding of Web3, including tokenomics, crypto payments, wallets, and market trends.
Genuine Web3/crypto BD experience - you already understand how token teams evaluate exchange listings and partnership offers.
Existing relationships in the space are a critical component - warm pipeline beats cold outreach.
Senior enough to run a full deal cycle independently, without needing management oversight at each step.
Genuinely commission-motivated. This role is structured for someone who wants their effort and results to show up directly in their paycheck - not someone seeking a flat, low-variability package.
Strong sales instincts and comfort with rejection - this is a quota-driven, outbound-heavy role.
Not looking for a “Head of BD” or management title - this is a hands-on, deal-closing role by design.
Exchange-side experience (Preferred): Prior experience on a listings/BD team at a crypto exchange is a strong plus - you understand how listing conversations and decisions actually get made from the other side of the table.
Benefits
Compensation: Competitive Base Salary + Uncapped Commission, depending on experience. Candidates with direct exchange-side listings experience would sit at the top of this range.
Travel Perks: Access to Smart Platinum tier on Travala.com for exclusive discounts and rewards.
Work-Life Balance: Remote working mode within a dynamic, high-performing international team culture.
Flexible Engagement Models: We offer tailored contracting or employment structures depending on your jurisdiction and location (to be discussed during the interview process).
Growth: Dedicated annual budget for courses, certifications, and tech conferences.
Web3 & Tech Exposure: Direct exposure to cutting-edge and trending technologies across Blockchain, Web3, FinTech, and real-world crypto adoption.
Premium Work Tools: High-end MacBook and necessary peripherals.
Founded in 2017 and now backed by industry giant Binance, Travala is the leading crypto-native travel booking service, offering 2,200,000+ properties across 230 countries, 600+ airlines, 50,000+ car rental locations, and 400,000+ activities globally.
Travala is a champion of cryptocurrency adoption, accepting over 100 leading cryptocurrencies alongside traditional payment methods. In addition to unbeatable prices via its Best Price Guarantee, Smart members on Travala can also enjoy additional discounts and loyalty rewards for eligible bookings made on the platform.
By incorporating next-generation blockchain technology and tokenised loyalty rewards, Travala.com is creating a cutting-edge experience at the intersection of Web3 and travel.
About the Role
Travala.com is the world's leading Web3 travel booking platform, with AVA as its native utility token. We're hiring a Senior BD Manager to own new coin listings on Travala end-to-end — sourcing targets, pitching, negotiating, and closing deals. Listings may be structured as a traditional paid fee or as an in-kind token arrangement, decided deal by deal — the specific structure isn't the focus of this role, closing quality listings is.
This is a hunter role, not a strategist or management role. You'll have sales collateral and initial market research to build from - you're not starting from a completely blank page.
While this is a fully remote position, candidates based in the Asia-Pacific (APAC) region are preferred to align with working hours across our wider growth team and key internal departments, with flexibility for exceptional candidates in other locations.
Key Responsibilities
Own the full listing deal cycle: prospecting, outreach, pitching, negotiation, and closing - across paid listings and in-kind/token-based listing arrangements
Build and actively manage a prioritized pipeline of target projects, using our existing research as a starting point and expanding it over time
Represent Travala directly to token project founders, BD leads, and treasury teams to pitch new listings
Negotiate commercial terms within approved guardrails, and manage the process through to signature
Keep leadership updated on pipeline status, deal velocity, and market feedback on our listing offering
Build strategic token partner relationships to drive revenue, while identifying broader ecosystem or co-marketing leads for internal teams.
Act as primary BD liaison for internal teams (product, legal, marketing, finance) to coordinate workflows, documentation, and compliant token integration.
Research and stay up to date with cryptocurrency market trends, emerging tokens, and innovative blockchain projects to identify potential listing opportunities.
What's Not in Scope
To keep this role focused and avoid overlap with our marketing team, the following sit outside this role:
Post-signature announcements, co-marketing, and campaign work - owned by our CMO's team once a deal is signed.
Broader strategic partnerships beyond listings (e.g. major platform integrations) - owned separately.
Managing other BD staff -this is an individual contributor role, not a management position.
What You'll Have From Day One
Sales collateral and initial market research to support outreach and pipeline-building
Direct access to leadership for deal support and approvals - no bureaucratic layers slowing down a close
Requirements
5+ years of professional experience in business development or sales within the blockchain or cryptocurrency industry.
Deep understanding of Web3, including tokenomics, crypto payments, wallets, and market trends.
Genuine Web3/crypto BD experience - you already understand how token teams evaluate exchange listings and partnership offers.
Existing relationships in the space are a critical component - warm pipeline beats cold outreach.
Senior enough to run a full deal cycle independently, without needing management oversight at each step.
Genuinely commission-motivated. This role is structured for someone who wants their effort and results to show up directly in their paycheck - not someone seeking a flat, low-variability package.
Strong sales instincts and comfort with rejection - this is a quota-driven, outbound-heavy role.
Not looking for a “Head of BD” or management title - this is a hands-on, deal-closing role by design.
Exchange-side experience (Preferred): Prior experience on a listings/BD team at a crypto exchange is a strong plus - you understand how listing conversations and decisions actually get made from the other side of the table.
Benefits
Compensation: Competitive Base Salary + Uncapped Commission, depending on experience. Candidates with direct exchange-side listings experience would sit at the top of this range.
Travel Perks: Access to Smart Platinum tier on Travala.com for exclusive discounts and rewards.
Work-Life Balance: Remote working mode within a dynamic, high-performing international team culture.
Flexible Engagement Models: We offer tailored contracting or employment structures depending on your jurisdiction and location (to be discussed during the interview process).
Growth: Dedicated annual budget for courses, certifications, and tech conferences.
Web3 & Tech Exposure: Direct exposure to cutting-edge and trending technologies across Blockchain, Web3, FinTech, and real-world crypto adoption.
Premium Work Tools: High-end MacBook and necessary peripherals.
portal sever
Social Media & Community Specialist — Web3 Gaming
United Downs, UK
United Downs, UK
Full time
Remote
Join Portal Sever and help us build a community around a growing Web3 game.
Portal Sever is a Web3 gaming project combining online gaming, digital ownership, and blockchain-powered experiences. We are looking for a Social Media & Community Specialist who understands crypto culture, knows how online communities work, and can turn content, conversations, and ideas into real community growth.
This isn't a role where you'll simply schedule posts. You'll have the freedom to experiment with content, develop our social presence, interact directly with players and crypto users, launch community activities, and help shape the public voice of Portal Sever.
If you spend time on X/Twitter, Telegram, Discord, Reddit, Web3 communities, gaming communities, or crypto media, we'd love to hear from you.
What you'll do
Manage and grow Portal Sever's social media and community channels, primarily X/Twitter, Telegram and Discord, while exploring other relevant platforms.
Create engaging content around the game, Web3, crypto gaming, product updates, community news, memes, announcements, and industry trends.
Build genuine relationships with players, community members, creators, influencers, and other Web3 projects.
Develop ideas and campaigns designed to increase followers, engagement, community activity, and player acquisition.
Organize community events such as AMAs, contests, giveaways, game activities, collaborations, and community discussions.
Keep conversations active instead of simply publishing posts and waiting for engagement.
Identify relevant trends early and turn them into timely content opportunities.
Monitor community feedback and communicate useful insights to the product and marketing teams.
Help establish Portal Sever's tone of voice and make the brand recognizable across Web3.
Research competitors, GameFi projects, gaming communities, and emerging platforms to identify new growth opportunities.
Experiment with new formats and ideas and analyze what actually works.
What we're looking for
Experience managing social media, online communities, gaming communities, crypto communities, or digital brands.
Strong understanding of Web3, cryptocurrency, blockchain, GameFi, or online gaming.
Good knowledge of X/Twitter, Telegram and Discord and how content performs differently across each platform.
Ability to communicate naturally in English with an international audience.
Strong writing skills and the ability to turn an idea or update into engaging social content.
Understanding of crypto culture, memes, trends, and community behavior.
Ability to work independently without needing detailed instructions for every task.
Comfortable communicating directly with users and handling both positive and negative feedback.
Creative mindset and willingness to test unconventional ideas.
Reliable, organized, and able to work remotely.
Nice to have
Experience with any of the following is a strong advantage: Web3 gaming, GameFi, NFT communities, gaming projects, influencer outreach, partnerships, community launches, viral content, Reddit, TikTok, YouTube, or short-form video.
Previous experience at a crypto exchange, blockchain company, Web3 startup, gaming studio, or crypto media project is welcome but not mandatory.
Why join Portal Sever?
You'll join a growing project at a stage where your ideas can have a visible impact.
We offer:
Fully remote work
Flexible working environment
A global Web3 and gaming audience
Freedom to propose and test your own ideas
Direct influence on the project's community and brand
Opportunity to grow together with the project
Exposure to the rapidly developing Web3 gaming industry
Long-term cooperation for strong performers
We care more about what you can create and grow than about formal titles or years spent in a corporate marketing department.
If you've built a community, managed a social account, created content that people actually engaged with, or simply understand how to attract attention in Web3, we want to hear from you.
When applying, please include:
A short introduction about yourself
Links to social media accounts or communities you've managed, if available
Your experience with Web3, crypto, or gaming
One or two ideas you would try to grow the Portal Sever community
Even if you don't match every requirement, feel free to apply if you believe you can bring value to the project.
Portal Sever is a Web3 gaming project combining online gaming, digital ownership, and blockchain-powered experiences. We are looking for a Social Media & Community Specialist who understands crypto culture, knows how online communities work, and can turn content, conversations, and ideas into real community growth.
This isn't a role where you'll simply schedule posts. You'll have the freedom to experiment with content, develop our social presence, interact directly with players and crypto users, launch community activities, and help shape the public voice of Portal Sever.
If you spend time on X/Twitter, Telegram, Discord, Reddit, Web3 communities, gaming communities, or crypto media, we'd love to hear from you.
What you'll do
Manage and grow Portal Sever's social media and community channels, primarily X/Twitter, Telegram and Discord, while exploring other relevant platforms.
Create engaging content around the game, Web3, crypto gaming, product updates, community news, memes, announcements, and industry trends.
Build genuine relationships with players, community members, creators, influencers, and other Web3 projects.
Develop ideas and campaigns designed to increase followers, engagement, community activity, and player acquisition.
Organize community events such as AMAs, contests, giveaways, game activities, collaborations, and community discussions.
Keep conversations active instead of simply publishing posts and waiting for engagement.
Identify relevant trends early and turn them into timely content opportunities.
Monitor community feedback and communicate useful insights to the product and marketing teams.
Help establish Portal Sever's tone of voice and make the brand recognizable across Web3.
Research competitors, GameFi projects, gaming communities, and emerging platforms to identify new growth opportunities.
Experiment with new formats and ideas and analyze what actually works.
What we're looking for
Experience managing social media, online communities, gaming communities, crypto communities, or digital brands.
Strong understanding of Web3, cryptocurrency, blockchain, GameFi, or online gaming.
Good knowledge of X/Twitter, Telegram and Discord and how content performs differently across each platform.
Ability to communicate naturally in English with an international audience.
Strong writing skills and the ability to turn an idea or update into engaging social content.
Understanding of crypto culture, memes, trends, and community behavior.
Ability to work independently without needing detailed instructions for every task.
Comfortable communicating directly with users and handling both positive and negative feedback.
Creative mindset and willingness to test unconventional ideas.
Reliable, organized, and able to work remotely.
Nice to have
Experience with any of the following is a strong advantage: Web3 gaming, GameFi, NFT communities, gaming projects, influencer outreach, partnerships, community launches, viral content, Reddit, TikTok, YouTube, or short-form video.
Previous experience at a crypto exchange, blockchain company, Web3 startup, gaming studio, or crypto media project is welcome but not mandatory.
Why join Portal Sever?
You'll join a growing project at a stage where your ideas can have a visible impact.
We offer:
Fully remote work
Flexible working environment
A global Web3 and gaming audience
Freedom to propose and test your own ideas
Direct influence on the project's community and brand
Opportunity to grow together with the project
Exposure to the rapidly developing Web3 gaming industry
Long-term cooperation for strong performers
We care more about what you can create and grow than about formal titles or years spent in a corporate marketing department.
If you've built a community, managed a social account, created content that people actually engaged with, or simply understand how to attract attention in Web3, we want to hear from you.
When applying, please include:
A short introduction about yourself
Links to social media accounts or communities you've managed, if available
Your experience with Web3, crypto, or gaming
One or two ideas you would try to grow the Portal Sever community
Even if you don't match every requirement, feel free to apply if you believe you can bring value to the project.
Payment in Crypto