(Senior) Engineer, Security

Hong Kong
Full time
Compensation is not specified
Backend Engineer

About Us

At OKX, we believe in the transformative power of technology. Our company was established in 2017 and has quickly become one of the world's leading cryptocurrency spot and derivatives exchanges. We have harnessed the potential of blockchain technology to revolutionize the financial ecosystem. Our diverse range of products, solutions, and trading tools have garnered the trust of over 20 million users in more than 180 regions worldwide. We strive to provide an engaging platform that empowers individuals to explore the world of crypto. In addition to our renowned DeFi exchange, we have a research arm called OKX Insights that stays at the forefront of the latest cryptocurrency industry trends. With our commitment to innovation and expansive suite of crypto products and services, we envision a world of financial access backed by blockchain and the power of decentralized finance.

We believe in investing in our people just as much as we invest in technology. Our culture revolves around teamwork, adaptability, and doing the right thing. We are dedicated to creating a friendly, fulfilling, and inclusive environment for all OKers. Regardless of your background, we want every individual to feel valued, respected, and empowered to develop and thrive. Our goal is to bring out the best in you.

About the Role


  • Design, develop, and maintain high-performance backend systems to support client security projects.
  • Collaborate with team members to define technical architecture and system design, ensuring scalability and stability.
  • Work closely with the team to solve technical challenges and deliver high-quality code on time.
  • Optimize system performance and reliability to enhance user experience.
  • Conduct code reviews to ensure code quality and security.
  • Stay up-to-date with the latest technology trends in the industry and drive improvement in the team's technical capabilities.


  • Bachelor's degree or higher in computer science, information security, communication, or related field.
  • Experience in backend development with proficiency in one of Golang, Java, or Python.
  • Familiarity with common backend development frameworks and tools, such as Gin, Echo, etc.
  • Strong knowledge of database design and optimization, including SQL and NoSQL databases.
  • Understanding of common network protocols and security mechanisms, as well as client security vulnerabilities and mitigation methods.
  • Familiarity with microservices architecture and containerization technologies like Docker and Kubernetes.
  • Excellent problem-solving skills and ability to work collaboratively in a team.
  • Strong communication skills for effective collaboration with team members and other departments.
  • Experience in relevant domain projects preferred.


  • Competitive total compensation.
  • Comprehensive insurance coverage for employees and their dependents.
  • More perks and benefits to be discussed during the process!
Skills Required
Company size
Not specified
United States
OKX is a world-leading digital asset exchange, providing advanced financial services to traders worldwide leveraging blockchain technology. Our platform offers spot & derivatives trading helping traders optimize their strategy. It provides a safe, reliable and stable environment for digital assets trading via web interface and mobile app by adopting GSLB, and distributed server clusters. We believe blockchain technology will eliminate barriers to transactions, increase the efficiency of transactions across society, and eventually have a significant impact on the global economy. We strive to achieve something that changes the world and never stop to innovate and improve on our customer experience.

More Full-time Jobs

Show more

Sr. Software Engineer - Backend

Full time
Position Description

Remote Opportunity

About Brave

Brave is dedicated to safeguarding individuals' online privacy rights. Our mission involves providing a web browser that automatically blocks intrusive ads and trackers, a private search engine with an independent index, a browser-integrated crypto wallet, and an opt-in private ad network that rewards users for their attention. With 50 million users having already made the switch, Brave is continuing to expand and make the web faster and more private.

Role Overview

Brave is seeking a skilled backend engineer to maintain and enhance our backend systems for Brave Rewards and Brave Premium. The role involves ensuring the efficient flow of Basic Attention Token to creators, end-users, and vendors, while offering premium services through a unique privacy-focused payment and credentialing system. We are looking for a candidate who values simple solutions, and can oversee solutions from conception to implementation.


Minimum 5 years of software development experience, including high-risk projects.

At least 2 years of experience in Go programming.

Proficiency in databases like Postgres, Redis, DynamoDB, Redshift, etc.

Familiarity with Kafka and other event-driven backend systems.

Experience in services architecture and event-driven systems.

Strong background in containerization and deploying scalable production systems.

Knowledge of monitoring solutions such as Prometheus and Grafana.

Experience working with distributed development teams.

Desired Qualities in Candidates

Passion for working on critical systems with financial implications.

Ability to thrive in an open-source environment.

Commitment to balancing privacy protection with data gathering needs.

Proficient written and verbal communication skills in English.

Proven track record of delivering results effectively.

Bonus Skills

Experience in payment systems or financial services.

Understanding of privacy-preserving ecosystems.

Strong leadership abilities and a drive to take ownership of systems.

Familiarity with cryptocurrencies, particularly Ethereum and Solana.

Working Environment at Brave

Leading the industry in privacy innovation with a team dedicated to online safety and challenging Big Tech giants.

Competitive compensation and benefits, including generous home-office allowances.

Fully remote working setup with no office or commute requirements.

Collaborating with brilliant and supportive colleagues in a flat organizational structure.

Opportunity to join a rapidly growing company and impact the future of the web.

Footnote: Founding CEO invented JavaScript!


For candidates in the United States, the salary range for this position is $150,000 - $175,000 USD based on experience.

Explore More About Us



Visit our official website at brave.com

Network & Security Engineer

Full time

The Cybersecurity and Data Privacy team operates under the supervision of the Chief Information Security Officer (CISO) Jason Lau, a recognized expert with extensive experience in cybersecurity. The team handles various functions such as Blockchain Security, Operational Security, and Security Governance and Compliance. Our team is committed to fostering a culture of continuous learning and support to unlock the potential of each team member. We prioritize Security and Data Privacy Compliance as fundamental components of our company ethos. Notably, our security initiatives have led us to become the first Crypto company globally to attain ISO27001, ISO27701, ISO22301, and PCI:DSS 3.2.1 (Level 1) certifications. Our adherence to stringent security standards has been validated by international audit firm SGS and recognized with the highest-level rating under the NIST Cybersecurity Framework and NIST Privacy Framework, in addition to SOC2 and other regional certifications.


Serve as the point of contact for resolving intricate Infrastructure operations and security configuration issues

Create and update documentation related to network infrastructure and system security designs

Keep abreast of emerging technologies to identify enhancements for existing infrastructure and security solutions

Lead the design and implementation of diverse security solutions to meet business and security prerequisites

Facilitate cooperation between development and operations teams by promoting "Infrastructure as Code" (IaC) principles and collaborating closely with the DevOps team

Provide after-hours support as necessary


Hold a Diploma or higher qualification in Computer Science, Information Systems, or related fields

Possess in-depth technical expertise in infrastructure and network products including Checkpoint, Palo Alto, Fortinet, F5, Cisco, and Aruba

Demonstrate solid understanding and practical experience with network and system security solutions like CASB, NAC, CDN, WAF, Secure Web Gateway, and Secure Email Gateway

Have strong knowledge and hands-on experience in cloud network infrastructure

Previous experience in designing and implementing resilient global networks across public and/or private cloud platforms is advantageous

Deep comprehension of networking protocols such as IPSEC, HSRP, BGP, OSPF, 802.11, and QoS

Possess CCNP certification or higher (CCIE and/or CISSP preferred)

Strong time management skills, willingness to learn, and ability to work independently

Proficient in both written and verbal English and Chinese communication

Candidates with less experience will be considered for a junior role


Competitive salary

Comprehensive medical insurance with extended coverage for dependents

Generous annual leave entitlements, including birthday and work anniversary holidays

Flexible working arrangements, including hybrid or remote setups

Internal mobility program for career growth opportunities

Additional work perks and benefits varying based on regional requirements

About Crypto.com

Founded in 2016, Crypto.com serves more than 80 million customers and is a rapidly expanding global cryptocurrency platform. Our mission is simple: Cryptocurrency in Every Wallet™. Committed to security, privacy, and compliance, Crypto.com aims to drive cryptocurrency adoption through innovation and empower the next generation of industry leaders and entrepreneurs. We are an inclusive employer dedicated to providing equal opportunities to individuals from diverse backgrounds.

Candidates' personal data will only be utilized for recruitment purposes. Please note that only shortlisted candidates will be notified.

Finance Trading Product Manager

Asia +2
Asia +2
Full time
Join a global blockchain ecosystem and cryptocurrency infrastructure provider dedicated to advancing cryptocurrency adoption and enhancing financial freedom.

If you thrive in a dynamic, purpose-driven organization that promotes continuous learning and growth, consider Binance for your next career move.


Shape product strategy and roadmap development

Conduct thorough market research and competitive analysis for social and trading solutions

Collaborate with stakeholders to define product roadmap and business requirements

Launch and optimize new product features, ensuring performance and user experience enhancements

Create comprehensive Product Requirements Documents and interactive designs

Analyze and respond to product performance data and user feedback promptly

Support customer service efforts, addressing queries, collecting feedback, and refining product requirements


4+ years of product management experience

Track record of delivering client-centric products from inception to launch

Knowledge in trading products, financial derivatives, and social trading

Strong business analysis and problem-solving skills

Effective communication for project management with multiple stakeholders

Organized, proactive, and fast learner with independence

Proficiency in English, additional experience in crypto or blockchain is advantageous

Working at Binance:

Join a leading global blockchain ecosystem with evolving career prospects

Collaborate with diverse talents in a continuous learning environment

Engage in challenging and innovative projects

Interact with an international team within a flat organizational structure

Competitive compensation package and benefits

Flexible work hours, remote-friendly, and casual work atmosphere

Discover how Binance nurtures a unified culture driven by core values promoting collaboration, excellence, and growth.

Join us in revolutionizing the Web3 landscape by applying today!

Binance is dedicated to fostering diversity as an equal opportunity employer, believing that a varied workforce is key to our success.

Your application signifies your acceptance of our Candidate Privacy Notice.

Full Stack Engineer - Mainapp

Taipei, Taiwan
Taipei, Taiwan
Full time
We are a team dedicated to creating, enhancing, and maintaining software for fiat wallet projects. You will actively contribute to designing various components of scalable applications, ranging from frontend UI to backend infrastructure, with a focus on providing improved accessibility for multiple currency rails in different countries. As a Full-stack Developer, you will be involved in designing, developing, and optimizing software for new fiat wallet projects that align with our core businesses and are executed efficiently with a lean team.


Engage in full stack development, recommend architectural choices, participate in design discussions, conduct design and code reviews, and implement products that bridge the gap between Crypto.com and developers/end-users.

Develop prototypes for innovative concepts related to new fiat payment networks or platforms proposed by the team.

Take ownership of projects, explore new technologies, and experiment with various approaches.

Identify and resolve complex issues pertaining to large-scale backend infrastructure and web platforms.

Maintain thorough documentation of all implemented code and features.

Collaborate closely with DevOps and Infrastructure teams to enhance the technical stack for long-term engineering ventures.


Passionate about developing top-notch products to address real-world challenges, adept with diverse technologies, self-driven, quick to learn, and possess a proactive attitude towards tasks.

Willingness to embrace superior ideas, eager to enhance processes, open to facing challenges and exploring opportunities.

Strong organizational and interpersonal skills with the ability to manage conflicting requirements from different stakeholders.

Knowledge of financial domains or Blockchain technology is advantageous.

Proficient in ensuring scalability, security, and performance.

Essential experience in web front-end development, particularly with React/Redux.

Familiarity with front-end frameworks like React.js, Vue.js, Mobx, Redux, and server-side programming languages such as Ruby on Rails and Golang.

Understanding of global payment systems is a plus.

Candidates with limited experience will be considered for junior positions.

At Crypto.com, we support a dynamic working culture centered on empowering individuals to embrace new challenges within a talented, driven, and collaborative team. Employees are encouraged to seek innovative solutions, with opportunities for personal and professional growth through skill development initiatives. Join a cohesive team united towards the common goal of facilitating cryptocurrency inclusion in every wallet, with perks like flexibility in work hours, a welcoming remote-work environment, internal mobility programs, and more.

Ready to embark on an enriching journey with us? Explore a competitive salary, attractive leave entitlements, work flexibility, internal mobility opportunities, and perks including a Crypto.com visa card upon joining. At Crypto.com, we promote fairness, transparency, diversity, and inclusivity, seeking candidates from varied backgrounds to strengthen our team.

Crypto.com, established in 2016, serves over 80 million customers as the world's fastest-growing global cryptocurrency platform. Guided by the vision of "Cryptocurrency in Every Wallet™," we are committed to driving cryptocurrency adoption through innovation for a more equitable digital ecosystem.

For more information about our benefits packages varied by region, contact our talent acquisition team. Explore more about us at Crypto.com.

As an equal opportunities employer, Crypto.com values diversity, inclusion, and transparent opportunities for all candidates. Applicant data is used solely for recruitment purposes, and only shortlisted candidates will be contacted.

Binance Accelerator Program - SEO

Middle East Pubnico, Canada
Middle East Pubnico, Canada
Full time
Binance is a prominent global blockchain ecosystem and cryptocurrency infrastructure provider known for its array of financial products, including the world's largest digital-asset exchange. Our goal is to expedite cryptocurrency adoption and enhance financial freedom.

If you seek a dynamic, purpose-driven organization that fosters continuous learning and growth, Binance is the ideal place for you.

We are in search of a marketer who embodies determination and self-motivation, capable of grasping intricate subjects and crafting innovative, effective content. The perfect candidate will be well-versed in the cryptocurrency realm, strongly aligned with Binance’s mission. Your adaptability, hacker mentality, collaborative nature, and adeptness in producing clear, concise copy under pressure make you an exceptional fit for this role.

We seek an articulate and meticulous professional, proficient in English, unafraid of hard work. At Binance, we are builders at heart, with a "Hardcore" ethos guiding us – a principle we expect all applicants to embrace.


Support the SEO team in implementing local SEO strategies

Assist in keyword research and cluster mapping

Aid in on-page content optimization

Conduct online link building outreach

Manage content publishing responsibilities

Assist with reporting and audits


Recent graduate or current student holding a Bachelor's degree in Marketing or related areas

Strong verbal and written English skills

Essential organizational and critical thinking abilities

Demonstrated proficiency in copywriting in English and/or foreign languages

Interest in gaining knowledge about SEO practices

Collaborative, communicative, and proactive approach 

Willingness to dedicate a minimum of 10 hours per week

Deep passion for the cryptocurrency industry

Fluency in more than one language (spoken and written) is advantageous

Preferably in MENA, EU, East/South Asia time zone 

Working at Binance:

Contribute to the leading blockchain ecosystem globally, fostering career advancement 

Collaborate with a diverse, top-tier workforce in an environment that supports continuous learning and development

Engage in fast-paced, challenging, and distinctive projects 

Experience a truly global organization with flat hierarchy and international teams

Competitive compensation package and benefits offered

Enjoy flexible working hours, remote-first policy, and casual dress code 

Learn about Binance’s core values, shaping a united culture based on collaboration, excellence, and growth.

Join us in propelling the Web3 revolution forward by applying today!

Binance upholds equal employment opportunity principles, recognizing that diversity is key to our prosperity.

By applying for a job, you acknowledge that you have reviewed and consent to our Candidate Privacy Notice.