AI Lead Engineer (Computer Vision)
About Us
At OKX, we are dedicated to transforming the future through technology. Founded in 2017, we are at the forefront of revolutionizing global systems with our innovative digital asset exchange, Web3 portal, and blockchain ecosystems. With a commitment to reshaping the financial landscape, we offer diverse and advanced products, solutions, and trading tools to over 50 million users across 180 countries worldwide. Embracing diversity and inclusion, OKX empowers individuals to explore Web3 and envisions a financially accessible world driven by blockchain and decentralized finance. Join us in crafting a future full of possibilities!
Job Summary
We are seeking a talented Lead Engineer to join our Computer Vision team. This position requires expertise in developing security protocols for face and ID verification processes and spearheading innovative technologies such as face detection, face recognition, and anti-deepfake measures. The ideal candidate will lead initiatives to fortify the security and integrity of biometric processing systems against sophisticated threats.
Responsibilities
Spearhead the development of cutting-edge computer vision technologies focusing on face detection, face recognition, and anti-deepfake measures while enhancing liveness detection and anti-forgery solutions.
Collaborate with interdisciplinary teams to integrate these solutions into existing platforms while prioritizing scalability and performance.
Remain updated on the latest industry trends and technological advancements in computer vision and security to ensure our solutions retain their cutting-edge status.
Define the strategic trajectory of the team, establishing clear goals and metrics aligned with the company's objectives.
Mentor and cultivate a team of computer vision engineers and researchers, fostering an innovative culture focused on continuous improvement.
Requirements
Hold an advanced degree (MS or PhD) in Computer Science, Electrical Engineering, or a related field, with a concentration on computer vision or machine learning.
Possess a minimum of 10 years of industry experience in computer vision technology development, including hands-on involvement in liveness detection and anti-forgery implementations.
Demonstrate experience in leading large-scale projects and innovations in areas such as liveness detection, face recognition, and anti-deepfake technologies.
Extensive familiarity with AI and machine learning technologies, specifically in the field of computer vision, with potential contributions to reputable open-source projects like GitHub.
Strong leadership abilities to inspire and guide a team of highly skilled technical professionals.
Exceptional problem-solving, leadership, and communication skills.
Preferred Qualifications
Experience in startup settings, dynamic companies, or leading technology firms.
Publication of research or active engagement within the computer vision community, particularly on subjects related to biometric security.
Perks & Benefits
Competitive total compensation package.
Learning and Development programs alongside education subsidies for personal growth.
Various team-building activities and engaging company events.
Growth Marketing Lead (User & Volume Growth Focus)
This is not a traditional community manager role. We’re looking for someone with a proven track record of onboarding users, increasing engagement, and directly contributing to product adoption and transaction/activity volume.
What You’ll Own
Develop and execute user growth strategy end-to-end
Drive measurable increases in active users and platform volume
Build acquisition funnels (organic + partnership-driven)
Optimize onboarding flows and activation metrics
Lead social presence across Twitter/X and other platforms
Represent the project in Twitter Spaces and relevant community events
Launch and manage growth campaigns, incentives, and referral programs
Track and report on growth KPIs (CAC, activation rate, retention, volume impact)
Must-Have Experience
Proven track record of growing users and/or trading/activity volume in a startup, Web3, fintech, or SaaS environment
Demonstrated ability to turn social presence into measurable growth
Experience hosting or speaking in Twitter Spaces and similar forums
Strong understanding of growth funnels, activation metrics, and retention loops
Data-driven mindset (comfortable with analytics tools and experimentation)
Bonus Points
Experience in crypto, trading platforms, or financial products
Experience designing referral or incentive systems
Existing relevant audience/network
What We Care About
We don’t care about vanity metrics (likes, impressions).
We care about:
Active users
Retention
Conversion
Volume growth
Sustainable acquisition loops
If you’ve scaled a product before and can show real numbers behind your impact, we want to talk.
Senior Blockchain Engineer
Protocol Core: Development and optimization of L2-settlement logic on Solidity/Yul.
Bridge Security: Designing secure cross-chain gateways with protection against double spending and reorgs.
Node Infrastructure: Optimizing the interaction of node validators with the EVM stack.
Gas Engineering: Extreme cost reduction for publishing data in L1 (Deneb/Cancun-ready).
Requirements:
Deep knowledge of Solidity (0.8.20+) and Assembly (Yul).
Experience working with Foundry (Fuzzing/Invariants) and understanding the architecture of OP Stack or Arbitrum Orbit.
Skills of working with indexers (The Graph/Envio) and the RPC layer.
Social media manager
Senior Blockchain Engineer
DApp & Smart Contract Developer (Vesting Platform)
This role is ideal for someone who thrives in fast-moving environments, values clean and secure code, and understands the nuances of blockchain-based application architecture.
Responsibilities
Diagnose and resolve issues in vesting smart contracts and their front-end integrations.
Implement new features and system enhancements to improve UX and overall platform performance.
Maintain smooth interaction between the web interface and deployed smart contracts.
Conduct testing, audits, and deployments across testnet and mainnet environments.
Optimize contract logic for performance, security, and gas efficiency.
Collaborate with our engineering team to identify pain points and deliver stable, secure solutions.
Requirements
Proven experience building full-stack decentralized applications.
Strong proficiency in Solidity, JavaScript/TypeScript, and modern frameworks (Angular, React, or Vue).
Hands-on experience with Hardhat or Foundry for smart contract development and testing.
Familiarity with Ethers.js or Web3.js for blockchain interaction layers.
Solid understanding of Ethereum, Polygon, or other EVM-compatible chains.
Experience integrating wallets such as MetaMask and managing on-chain/off-chain data flows.
Strong debugging skills, attention to detail, and a security-first mindset.
Nice to Have
Experience with smart contract security audits and gas optimization techniques.
Knowledge of Node.js-based backend services or API integration layers.
Previous experience with vesting, staking, or token distribution mechanisms.
Project Scope
This role supports a short-to-mid-term initiative focused on stabilizing and enhancing an existing crypto vesting platform. High-performing developers may have opportunities for ongoing collaboration across additional blockchain and product engineering projects.
Hiring Process
Technical Assessment - Selected candidates will complete a short, clearly scoped technical exercises designed solely to evaluate coding approach and smart contract knowledge.
CTO interview - A final discussion to evaluate technical reasoning, architectural thinking, and team fit. Successful candidates may receive an offer through Contra following this conversation.