Senior Engineer - Security Operation
Singapore
Full time
Office
Compensation is not specified
Role
Security Engineer
Description
About Us
At OKX, we are passionate about leveraging technology to shape the future. Established in 2017, we are at the forefront of transforming global systems through our advanced digital asset exchange, Web3 platform, and blockchain ecosystems. By offering a wide range of innovative financial solutions, products, and trading tools, we are revolutionizing the financial landscape. Trusted by over 50 million users in 180+ countries, OKX is dedicated to empowering individuals to explore the realm of Web3. With a commitment to innovation and a diverse team of over 3,000 employees worldwide, we believe that embracing diversity and inclusion is key to creating lasting value in the industry. Join us in building the future together!
Responsibilities
- Provide guidance to team members on secure coding best practices
- Develop and update incident response plans, as well as conduct testing and training for incident response
- Perform security testing and vulnerability assessments, such as penetration testing, vulnerability scanning, and code reviews
- Regularly conduct checks and tests to identify and address known vulnerabilities
Qualifications
- A bachelor's degree or higher in computer science, information security, or related fields
- Minimum of 2 years of experience in a Software Security role, with expertise in secure software development practices, threat modeling, and vulnerability assessments
- Strong knowledge of security research and development
- Proficiency in security testing tools and techniques, including penetration testing, vulnerability scanning, and code reviews
- Fluency in Mandarin and English is preferred, as team collaboration extends across regions
Benefits
- Competitive compensation package
- Learning and development programs, including education subsidies
- Team-building activities and corporate events
- Wellness and meal allowances
- Comprehensive healthcare coverage for employees and their dependents
- Additional perks to be discussed during the application process by our team.
Skills Required
OKX
Website
www.okx.comCompany size
Not specified
Location
United States
Description
Not specified
Ali Ahmad
Graphic Designer for Web & Mobile Projects
Part time
Remote
We are lookang for a talented and creative graphic designer to work on various digital design project including web banners social medai posts product mockups and UI/UX layouts
Payment in Crypto
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
VaultChain
Assistant in Financial Technology and Trading Strategies (with Training)
Berlin, Germany
Berlin, Germany
Part time
Remote
Description
We are offering an opportunity to join our team and learn about cross-market trading strategies, focusing on identifying price differences of assets across multiple platforms. This role provides hands-on experience in financial technology, data analysis, and trading support.
As part of this position, you will:
Gain practical knowledge of market analysis and trading workflows
Learn how to recognize and evaluate opportunities across different platforms
Develop your skills in risk management and decision-making
Work with a mentor who will guide you step by step through the learning process
What we provide:
Comprehensive training program designed for beginners
Ongoing mentorship and professional support
Flexible schedule (approx. 1 hour a day required for study and practice)
Remote work setup with the possibility to grow into a larger role over time
This is a part-time, entry-level opportunity suitable for candidates with little or no prior experience. What matters most is your willingness to learn and apply new knowledge in practice.
Compensation: Competitive monthly pay structure with opportunities for progression as skills develop
We are offering an opportunity to join our team and learn about cross-market trading strategies, focusing on identifying price differences of assets across multiple platforms. This role provides hands-on experience in financial technology, data analysis, and trading support.
As part of this position, you will:
Gain practical knowledge of market analysis and trading workflows
Learn how to recognize and evaluate opportunities across different platforms
Develop your skills in risk management and decision-making
Work with a mentor who will guide you step by step through the learning process
What we provide:
Comprehensive training program designed for beginners
Ongoing mentorship and professional support
Flexible schedule (approx. 1 hour a day required for study and practice)
Remote work setup with the possibility to grow into a larger role over time
This is a part-time, entry-level opportunity suitable for candidates with little or no prior experience. What matters most is your willingness to learn and apply new knowledge in practice.
Compensation: Competitive monthly pay structure with opportunities for progression as skills develop
Сrypto.com
QA Support Engineer (Trading Platform)
Singapore
Singapore
Full time
Hybrid
The team responsible for Trading Infrastructure focuses on constructing a high-performance front-to-back Trading Platform that caters to multi-asset trading. The platform is engineered to manage financial instruments efficiently with low-latency execution, robust risk controls, and seamless integration spanning trading, risk, operations, and finance workflows.
The system's architecture is modular and includes essential components such as market data feeds, order gateways, execution algorithms, risk engines, UI dashboards, middle office reconciliation, and account infrastructure. The emphasis lies on event-driven, deterministic system design, real-time observability, and stringent security measures.
The tech stack involves Java for low-latency applications, Python, Web UI technologies like React and Ag-Grid, Aeron, ClickHouse, Kubernetes, and modern CI/CD tools. Automation, scalability, and performance are key focal points. Additionally, the team leverages AI-assisted development tools to enhance productivity and quality collectively.
Responsibilities
Engage actively with the QA manager and development teams to grasp product features and architecture.
Create, execute, and upkeep test cases using frameworks such as JBehave or Cucumber.
Contribute to automation testing pipelines to minimize manual regression efforts.
Generate meaningful test scenarios based on crypto trading business logic and system workflows.
Conduct functional, regression, integration, and end-to-end testing for components like Order Gateway, Execution Algo, Market Data, Risk, and Middle Office.
Aid in enhancing test coverage across services.
Support in bug reproduction, investigation, and collaborate with developers on root cause analysis.
Participate in routine test cycle planning and release validation procedures.
Requirements
Must-Have Skills:
Fundamental understanding of crypto trading workflows encompassing exchange matching, order lifecycle, and execution logic.
Familiarity with middle office processes like trade reconciliation.
Practical experience with BDD frameworks like Cucumber or JBehave.
Proficiency in independently crafting test cases and test scenarios.
Exposure to test automation, preferably using Java-based tools.
Familiarity with CI/CD pipelines and source control tools such as Git.
Strong problem-solving skills and effective communication abilities.
Detail-oriented with disciplined issue follow-through.
Nice-to-Have Skills:
Knowledge of FIX, WebSocket, or REST protocols utilized in trading systems.
Previous exposure to Agile environments.
Familiarity with test coverage reporting tools like Jacoco or SonarQube.
Previous internship or project participation involving financial systems or backend testing.
Life at the Organization:
Encouraged to think expansively and explore new opportunities within a talented, ambitious, and supportive team.
Empowered to find innovative solutions in a transformational and proactive working environment.
Support for personal and professional growth through skill-set development.
Vibrant work culture with a collaborative atmosphere for mutual support.
Adopting work flexibility with flexi-work hours and options for hybrid or remote setups.
Benefits:
Competitive salary offered.
Generous annual leave entitlement inclusive of birthday leave and work anniversary.
Work flexibility options with flexi-work hours and hybrid or remote setups.
Internal mobility opportunities promoting diverse career paths.
Work perks like a company-provided visa card upon joining.
About the Company:
Established in 2016, the organization serves over 150 million customers as the world's fastest-growing global cryptocurrency platform. With a vision to drive Cryptocurrency in Every Wallet™, the company prioritizes security, privacy, and compliance, aiming to accelerate cryptocurrency adoption through innovation. Through commitment to diversity, inclusion, and equal opportunities, the organization seeks varied backgrounds, perspectives, and skills to strengthen their team.
Applicants' provided personal data will solely be used for recruitment purposes.
Kindly note that only shortlisted candidates will be contacted for further proceedings.
The system's architecture is modular and includes essential components such as market data feeds, order gateways, execution algorithms, risk engines, UI dashboards, middle office reconciliation, and account infrastructure. The emphasis lies on event-driven, deterministic system design, real-time observability, and stringent security measures.
The tech stack involves Java for low-latency applications, Python, Web UI technologies like React and Ag-Grid, Aeron, ClickHouse, Kubernetes, and modern CI/CD tools. Automation, scalability, and performance are key focal points. Additionally, the team leverages AI-assisted development tools to enhance productivity and quality collectively.
Responsibilities
Engage actively with the QA manager and development teams to grasp product features and architecture.
Create, execute, and upkeep test cases using frameworks such as JBehave or Cucumber.
Contribute to automation testing pipelines to minimize manual regression efforts.
Generate meaningful test scenarios based on crypto trading business logic and system workflows.
Conduct functional, regression, integration, and end-to-end testing for components like Order Gateway, Execution Algo, Market Data, Risk, and Middle Office.
Aid in enhancing test coverage across services.
Support in bug reproduction, investigation, and collaborate with developers on root cause analysis.
Participate in routine test cycle planning and release validation procedures.
Requirements
Must-Have Skills:
Fundamental understanding of crypto trading workflows encompassing exchange matching, order lifecycle, and execution logic.
Familiarity with middle office processes like trade reconciliation.
Practical experience with BDD frameworks like Cucumber or JBehave.
Proficiency in independently crafting test cases and test scenarios.
Exposure to test automation, preferably using Java-based tools.
Familiarity with CI/CD pipelines and source control tools such as Git.
Strong problem-solving skills and effective communication abilities.
Detail-oriented with disciplined issue follow-through.
Nice-to-Have Skills:
Knowledge of FIX, WebSocket, or REST protocols utilized in trading systems.
Previous exposure to Agile environments.
Familiarity with test coverage reporting tools like Jacoco or SonarQube.
Previous internship or project participation involving financial systems or backend testing.
Life at the Organization:
Encouraged to think expansively and explore new opportunities within a talented, ambitious, and supportive team.
Empowered to find innovative solutions in a transformational and proactive working environment.
Support for personal and professional growth through skill-set development.
Vibrant work culture with a collaborative atmosphere for mutual support.
Adopting work flexibility with flexi-work hours and options for hybrid or remote setups.
Benefits:
Competitive salary offered.
Generous annual leave entitlement inclusive of birthday leave and work anniversary.
Work flexibility options with flexi-work hours and hybrid or remote setups.
Internal mobility opportunities promoting diverse career paths.
Work perks like a company-provided visa card upon joining.
About the Company:
Established in 2016, the organization serves over 150 million customers as the world's fastest-growing global cryptocurrency platform. With a vision to drive Cryptocurrency in Every Wallet™, the company prioritizes security, privacy, and compliance, aiming to accelerate cryptocurrency adoption through innovation. Through commitment to diversity, inclusion, and equal opportunities, the organization seeks varied backgrounds, perspectives, and skills to strengthen their team.
Applicants' provided personal data will solely be used for recruitment purposes.
Kindly note that only shortlisted candidates will be contacted for further proceedings.
Сrypto.com
Senior Data Analyst, Compliance (Bulgaria)
Sofia, Bulgaria
Sofia, Bulgaria
Full time
Remote
We are in search of a qualified Compliance Senior Data Analyst with proficiency in SQL, Python, and data automation tools. This role is a vital contributor to our Global Regulatory Reporting team responsible for meeting licensing and tax reporting obligations. As a Compliance Senior Data Analyst, you will gain in-depth knowledge of our products and data flows to support regulatory reporting accurately and punctually.
This position requires an individual who can independently navigate complex data challenges, communicate effectively, and collaborate seamlessly across teams and different time zones. The successful candidate should be skilled in data analytics, SQL, Python, Jira, and data visualization, with experience in utilizing APIs for third-party platform integration as a strong advantage. A strong enthusiasm for financial innovation and a proactive approach to cross-functional problem-solving are essential qualities.
Responsibilities:
Assist in upcoming CARF/DAC8 tax reporting tasks by utilizing SQL queries to extract and validate data accurately.
Support global regulatory reporting obligations, ensuring all mandated data deliverables are completed promptly.
Maintain and update tasks in Jira ticketing systems, providing regular status updates.
Employ Agile or SCRUM methodologies for task tracking and workflows.
Uphold response and documentation standards for both ad-hoc and recurring data requests.
Collaborate with Global Compliance stakeholders to meet data requirements from regulators, financial partners, and internal leadership.
Follow established procedures for important reporting tasks, identify and implement new tools and processes for improved data preparation and sharing.
Document workflows and processes for clarity and consistency.
Perform any other duties as assigned.
Requirements:
Proficient in efficient SQL query writing across extensive datasets, focusing on performance and data accuracy.
Experience with Python or similar languages for data processing or automation.
Excellent English communication skills suitable for a global, multicultural setting.
Strategic problem-solving skills with a structured approach.
Strong organizational skills with keen attention to detail.
Exposure to cross-functional projects, potential collaboration outside standard hours due to varied time zones.
Knowledge in financial services, especially in regulatory and tax reporting within banking or fintech.
Understanding of cryptocurrencies or a willingness to learn more about them.
Life @ Empowered to innovate within a vibrant team. Proactive and transformative work environment fostering innovation. Opportunities for personal and professional growth through skill development. Supportive work culture promoting collaboration and mutual assistance. Integrated teamwork to achieve shared organizational objectives of expanding cryptocurrency usage.
Benefits:
Competitive salary.
Comprehensive medical insurance coverage inclusive of dependents.
Generous annual leave entitlement including birthday and work anniversary days off.
Internal mobility program nurturing diverse career paths.
Company perks including a crypto card upon joining.
About:
Established in 2016, our company serves a global customer base exceeding 150 million, spearheading the adoption of cryptocurrency globally. We envision creating a more equitable digital ecosystem built on principles of security, privacy, and compliance, fostering innovation, and empowering future generations of entrepreneurs and creators.
Join us in creating a diverse and inclusive work environment where opportunities are accessible to all in a fair and transparent manner. We value diversity, and we encourage individuals from different backgrounds to apply.
Applicants' personal data will be exclusively used for recruitment purposes.
This position requires an individual who can independently navigate complex data challenges, communicate effectively, and collaborate seamlessly across teams and different time zones. The successful candidate should be skilled in data analytics, SQL, Python, Jira, and data visualization, with experience in utilizing APIs for third-party platform integration as a strong advantage. A strong enthusiasm for financial innovation and a proactive approach to cross-functional problem-solving are essential qualities.
Responsibilities:
Assist in upcoming CARF/DAC8 tax reporting tasks by utilizing SQL queries to extract and validate data accurately.
Support global regulatory reporting obligations, ensuring all mandated data deliverables are completed promptly.
Maintain and update tasks in Jira ticketing systems, providing regular status updates.
Employ Agile or SCRUM methodologies for task tracking and workflows.
Uphold response and documentation standards for both ad-hoc and recurring data requests.
Collaborate with Global Compliance stakeholders to meet data requirements from regulators, financial partners, and internal leadership.
Follow established procedures for important reporting tasks, identify and implement new tools and processes for improved data preparation and sharing.
Document workflows and processes for clarity and consistency.
Perform any other duties as assigned.
Requirements:
Proficient in efficient SQL query writing across extensive datasets, focusing on performance and data accuracy.
Experience with Python or similar languages for data processing or automation.
Excellent English communication skills suitable for a global, multicultural setting.
Strategic problem-solving skills with a structured approach.
Strong organizational skills with keen attention to detail.
Exposure to cross-functional projects, potential collaboration outside standard hours due to varied time zones.
Knowledge in financial services, especially in regulatory and tax reporting within banking or fintech.
Understanding of cryptocurrencies or a willingness to learn more about them.
Life @ Empowered to innovate within a vibrant team. Proactive and transformative work environment fostering innovation. Opportunities for personal and professional growth through skill development. Supportive work culture promoting collaboration and mutual assistance. Integrated teamwork to achieve shared organizational objectives of expanding cryptocurrency usage.
Benefits:
Competitive salary.
Comprehensive medical insurance coverage inclusive of dependents.
Generous annual leave entitlement including birthday and work anniversary days off.
Internal mobility program nurturing diverse career paths.
Company perks including a crypto card upon joining.
About:
Established in 2016, our company serves a global customer base exceeding 150 million, spearheading the adoption of cryptocurrency globally. We envision creating a more equitable digital ecosystem built on principles of security, privacy, and compliance, fostering innovation, and empowering future generations of entrepreneurs and creators.
Join us in creating a diverse and inclusive work environment where opportunities are accessible to all in a fair and transparent manner. We value diversity, and we encourage individuals from different backgrounds to apply.
Applicants' personal data will be exclusively used for recruitment purposes.