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
Common Knowledge Base Association (CKBA)
Operations Director
Full time
Remote
About the Role
CKBA is seeking an Operations Director to oversee organizational operations, coordinate functional teams, and drive the effective execution of organizational priorities.
The Operations Director works closely with the Board, functional leads, and the Chief of Staff to strengthen organizational alignment, operational effectiveness, and accountability.
The role has decision-making authority within approved budgets and policies, while major strategic and governance decisions remain with the Board and General Assembly.
Key Responsibilities
Organizational Coordination & Execution
Coordinate across Engineering, Research, Ecosystem, Communications, DevRel, and other functional teams.
Translate Board-approved priorities into actionable plans with clear ownership and timelines.
Track progress, identify execution risks, and resolve cross-functional challenges.
Ensure clear ownership, communication, and accountability for organizational initiatives.
Operational Management & Decision-Making
Make operational decisions within approved budgets and delegated authority.
Review and approve hiring and resource requests within established budget limits.
Work with functional leads to address operational and performance issues.
Escalate major organizational changes for Board approval when necessary.
Planning & Performance
Facilitate organizational planning and regular progress reviews.
Monitor progress against agreed objectives and identify execution risks.
Partner with the Chief of Staff to conduct leadership reviews, assess functional leads’ performance, and address performance gaps.
Provide recommendations on organizational structure, staffing, and operational improvements.
Financial & Internal Operations Oversight
Oversee organizational budget execution and resource utilization.
Work with the Chief of Staff and Finance team to ensure effective financial and administrative operations.
Maintain appropriate operational processes, reporting, and accountability.
Board & Governance Coordination
Implement Board-approved organizational priorities and decisions.
Provide regular updates on organizational performance, operational risks, and resource utilization.
Support Board and General Assembly decision-making with relevant operational information.
Ensure decisions requiring governance approval are appropriately escalated.
Requirements
Proven experience in operations leadership or cross-functional management.
Strong coordination, decision-making, and problem-solving skills.
Experience managing budgets, operational planning, and organizational performance.
Ability to work effectively with autonomous technical and non-technical teams.
Experience in distributed, technology-driven, or decentralized organizations.
Strong English communication skills.
Web3 or open-source ecosystem experience preferred.
Success Measures
Functional teams operate effectively with clear priorities and ownership.
Cross-functional challenges are resolved efficiently.
Organizational initiatives are executed according to approved priorities.
Budget and resource decisions are made responsibly and within delegated authority.
The Board has clear visibility into organizational progress and risks.
Day-to-day operational decisions no longer depend heavily on the Board President.
Perks & Work Environment
Remote & Flexible — Work from anywhere with a globally distributed team.
Flexible Time Off — 15 days of time off + public holidays based on your location.
AI & Tooling Support — Budget for AI and productivity tools that help you work better.
In-person Gatherings — Opportunities to meet and build together through team gatherings and ecosystem events.
CKBA is seeking an Operations Director to oversee organizational operations, coordinate functional teams, and drive the effective execution of organizational priorities.
The Operations Director works closely with the Board, functional leads, and the Chief of Staff to strengthen organizational alignment, operational effectiveness, and accountability.
The role has decision-making authority within approved budgets and policies, while major strategic and governance decisions remain with the Board and General Assembly.
Key Responsibilities
Organizational Coordination & Execution
Coordinate across Engineering, Research, Ecosystem, Communications, DevRel, and other functional teams.
Translate Board-approved priorities into actionable plans with clear ownership and timelines.
Track progress, identify execution risks, and resolve cross-functional challenges.
Ensure clear ownership, communication, and accountability for organizational initiatives.
Operational Management & Decision-Making
Make operational decisions within approved budgets and delegated authority.
Review and approve hiring and resource requests within established budget limits.
Work with functional leads to address operational and performance issues.
Escalate major organizational changes for Board approval when necessary.
Planning & Performance
Facilitate organizational planning and regular progress reviews.
Monitor progress against agreed objectives and identify execution risks.
Partner with the Chief of Staff to conduct leadership reviews, assess functional leads’ performance, and address performance gaps.
Provide recommendations on organizational structure, staffing, and operational improvements.
Financial & Internal Operations Oversight
Oversee organizational budget execution and resource utilization.
Work with the Chief of Staff and Finance team to ensure effective financial and administrative operations.
Maintain appropriate operational processes, reporting, and accountability.
Board & Governance Coordination
Implement Board-approved organizational priorities and decisions.
Provide regular updates on organizational performance, operational risks, and resource utilization.
Support Board and General Assembly decision-making with relevant operational information.
Ensure decisions requiring governance approval are appropriately escalated.
Requirements
Proven experience in operations leadership or cross-functional management.
Strong coordination, decision-making, and problem-solving skills.
Experience managing budgets, operational planning, and organizational performance.
Ability to work effectively with autonomous technical and non-technical teams.
Experience in distributed, technology-driven, or decentralized organizations.
Strong English communication skills.
Web3 or open-source ecosystem experience preferred.
Success Measures
Functional teams operate effectively with clear priorities and ownership.
Cross-functional challenges are resolved efficiently.
Organizational initiatives are executed according to approved priorities.
Budget and resource decisions are made responsibly and within delegated authority.
The Board has clear visibility into organizational progress and risks.
Day-to-day operational decisions no longer depend heavily on the Board President.
Perks & Work Environment
Remote & Flexible — Work from anywhere with a globally distributed team.
Flexible Time Off — 15 days of time off + public holidays based on your location.
AI & Tooling Support — Budget for AI and productivity tools that help you work better.
In-person Gatherings — Opportunities to meet and build together through team gatherings and ecosystem events.
Payment in Crypto
Common Knowledge Base Association (CKBA)
Developer Relations Coordinator
Full time
Remote
The Nervos Community Catalyst (NCC) is an organisation supported by the Common Knowledge Base Association (CKBA). It aims to strengthen productivity in the CKB community through a range of initiatives. Its work focuses primarily on developers, but may also support other productive activities, such as content creation and community activism.
For further information, see the NCC website and announcement post.
Job Description
The Developer Relations Coordinator (DevRel Coordinator) oversees, tracks and coordinates developers participating in the CKBuilders and Build on CKB programmes. The DevRel Coordinator is the main point of contact for new builders working through CKB and Fiber documentation, helping them find relevant resources and connecting them with DevRel or other technical contributors when needed.
The DevRel Coordinator also maintains close relationships with developers participating in NCC programmes and helps coordinate communication and support between these builders and CKB developer teams. The role also involves highlighting selected developer contributions to the wider community through social media.
The DevRel Coordinator is a full-time contractor and reports to the NCC Director through regular meetings.
Key Responsibilities
Track and engage with active CKBuilders, CKBuilder alumni and Build on CKB members, maintaining regular communication and following up on project progress and support needs.
Redesign and maintain the CKBuilder project tracker.
Improve the visibility and presentation of developer activity across NCC programmes.
Act as the first point of contact for developers with questions, directing them to appropriate resources or connecting them with DevRel and other technical contributors when needed.
Provide constructive feedback on developer ideas and projects within the scope of the role.
Develop developer engagement strategies on CKBoost and design campaigns where appropriate.
Review weekly reports submitted by CKBuilders and follow up on progress or issues where needed.
Showcase developer activity through social media posts.
Contribute strategic input on NCC's positioning.
Optional Additional Responsibilities
The following responsibilities may be added for higher remuneration:
Represent NCC at regional CKBuilder events, where feasible.
Manage developer payroll.
Person Specification
Essential
Strong written communication skills.
Professional approach.
Proactive work ethic.
Strong organisational skills.
Ability to respond to queries within a reasonable timeframe.
Background in computer science.
A sound technical understanding of blockchain and CKB.
Highly Desirable
Bilingual in English and Chinese.
Familiarity with the CKB ecosystem, documentation, tooling and development teams.
Experience working with developers or coordinating technical projects and contributors.
Ability to solve problems and design solutions where needed.
Understanding of the crypto industry and wider technology and market trends.
Experience using AI tools.
Desirable
Ability to work asynchronously.
For further information, see the NCC website and announcement post.
Job Description
The Developer Relations Coordinator (DevRel Coordinator) oversees, tracks and coordinates developers participating in the CKBuilders and Build on CKB programmes. The DevRel Coordinator is the main point of contact for new builders working through CKB and Fiber documentation, helping them find relevant resources and connecting them with DevRel or other technical contributors when needed.
The DevRel Coordinator also maintains close relationships with developers participating in NCC programmes and helps coordinate communication and support between these builders and CKB developer teams. The role also involves highlighting selected developer contributions to the wider community through social media.
The DevRel Coordinator is a full-time contractor and reports to the NCC Director through regular meetings.
Key Responsibilities
Track and engage with active CKBuilders, CKBuilder alumni and Build on CKB members, maintaining regular communication and following up on project progress and support needs.
Redesign and maintain the CKBuilder project tracker.
Improve the visibility and presentation of developer activity across NCC programmes.
Act as the first point of contact for developers with questions, directing them to appropriate resources or connecting them with DevRel and other technical contributors when needed.
Provide constructive feedback on developer ideas and projects within the scope of the role.
Develop developer engagement strategies on CKBoost and design campaigns where appropriate.
Review weekly reports submitted by CKBuilders and follow up on progress or issues where needed.
Showcase developer activity through social media posts.
Contribute strategic input on NCC's positioning.
Optional Additional Responsibilities
The following responsibilities may be added for higher remuneration:
Represent NCC at regional CKBuilder events, where feasible.
Manage developer payroll.
Person Specification
Essential
Strong written communication skills.
Professional approach.
Proactive work ethic.
Strong organisational skills.
Ability to respond to queries within a reasonable timeframe.
Background in computer science.
A sound technical understanding of blockchain and CKB.
Highly Desirable
Bilingual in English and Chinese.
Familiarity with the CKB ecosystem, documentation, tooling and development teams.
Experience working with developers or coordinating technical projects and contributors.
Ability to solve problems and design solutions where needed.
Understanding of the crypto industry and wider technology and market trends.
Experience using AI tools.
Desirable
Ability to work asynchronously.
Payment in Crypto
ME Re
Junior PR & Communications Executive | Crypto & Tech
Full time
Remote
Growth Lab is a small PR consultancy working with crypto and fintech companies. We’re looking for a proactive, focused teammate who can research journalists, build targeted media lists, write compelling pitches and follow through on outreach. You’ll take ownership of assigned tasks, apply feedback and keep work moving, with direct guidance from the founder.
What you’ll do
Research journalists and their recent coverage to identify relevant people to approach.
Build and maintain accurate media lists, with useful notes on each reporter’s interests.
Help develop story angles and write clear, personalised media pitches.Support journalist outreach and follow-ups, with guidance.
Track coverage, interview opportunities and deadlines.Help prepare briefing documents, client updates and interview materials.
Follow crypto and financial news to spot opportunities for our clients.
Keep assigned work organised and follow it through to completion.
Who we’re looking for
You write clearly in English, enjoy research and want to understand how PR works.
You’re comfortable taking direction, asking questions when something is unclear and applying feedback to your next piece of work.
You bring determination and focus.
When a task takes more digging than expected, you keep working through it and communicate when you need help. You pay attention to the brief, check your work and flag delays early.
Familiarity with media pitching is needed.
An interest in crypto is mandatory.What you’ll gainDirect mentorship from an experienced communications lead.Practical training in journalist research, story development, pitching and media relations.Exposure to founders and complex topics across crypto, fintech and technology.Responsibility that grows as your skills and confidence develop.A small team where your work makes a visible contribution.
What you’ll do
Research journalists and their recent coverage to identify relevant people to approach.
Build and maintain accurate media lists, with useful notes on each reporter’s interests.
Help develop story angles and write clear, personalised media pitches.Support journalist outreach and follow-ups, with guidance.
Track coverage, interview opportunities and deadlines.Help prepare briefing documents, client updates and interview materials.
Follow crypto and financial news to spot opportunities for our clients.
Keep assigned work organised and follow it through to completion.
Who we’re looking for
You write clearly in English, enjoy research and want to understand how PR works.
You’re comfortable taking direction, asking questions when something is unclear and applying feedback to your next piece of work.
You bring determination and focus.
When a task takes more digging than expected, you keep working through it and communicate when you need help. You pay attention to the brief, check your work and flag delays early.
Familiarity with media pitching is needed.
An interest in crypto is mandatory.What you’ll gainDirect mentorship from an experienced communications lead.Practical training in journalist research, story development, pitching and media relations.Exposure to founders and complex topics across crypto, fintech and technology.Responsibility that grows as your skills and confidence develop.A small team where your work makes a visible contribution.
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.