Senior/Staff Software Engineer Mobile

Senior/Staff Software Engineer Mobile (iOS) - Compliance & KYC
About OKX:
At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.
About the team:
We're looking for highly driven Mobile Engineers (iOS) to join our Compliance & KYC engineering team, where you will play a key role in building secure, regulation-compliant, and localized onboarding solutions for users around the world.
This is not a typical feature-building role. You will be entrusted with end-to-end technical ownership for one or more key markets, working closely with regional business leaders, compliance experts, and external KYC vendors. You'll have the autonomy to drive localized engineering solutions, make critical architectural decisions, and ensure the delivery of high-quality, compliant, and user-centric onboarding experiences.
If you thrive in a fast-paced, highly collaborative environment and are motivated by the opportunity to own impactful features that serve both business goals and user trust, this role is for you.
Responsibilities:
Take full technical ownership of specific regional markets, leading the mobile KYC and compliance implementation from requirements to release.
Make independent engineering decisions based on business context, regulatory needs, and technical constraints — balancing speed, maintainability, and compliance.
Build and maintain critical mobile onboarding features, such as document verification, facial recognition, and liveness detection, ensuring seamless and secure experiences.
Collaborate closely with regional market leaders, compliance/legal teams, and product managers to understand local regulatory requirements and translate them into technical solutions.
Integrate and optimize third-party KYC SDKs and services across platforms while managing performance, security, and UX trade-offs.
Ensure that mobile data flows and user permissions are fully compliant with local and international privacy regulations (e.g., GDPR, PDPA, CCPA).
Influence mobile architecture decisions with a focus on modularity, reusability, and maintainability, especially in the context of region-specific features.
Identify and resolve edge cases, production issues, and technical risks related to compliance flows.
Help foster a culture of ownership, autonomy, and accountability, while mentoring teammates and contributing to a high-standard engineering environment.
Requirements:
5+ years of experience in native iOS development, preferably with experience building secure or compliance-sensitive features.
Proven ability to independently drive and own technical solutions end-to-end, especially for region-specific requirements or regulatory demands.
Strong hands-on experience integrating camera, biometric, OCR, or facial recognition SDKs into production mobile apps.
Experience collaborating with cross-functional and international stakeholders, and the ability to influence product and compliance decisions from a technical perspective.
Deep understanding of mobile platform capabilities, performance tuning, and secure data handling.
Ability to balance speed, quality, and compliance in a fast-paced, high-trust environment.
Strong communication and documentation skills — capable of clearly articulating trade-offs, constraints, and solutions.
(Bonus) Familiarity with global compliance frameworks and KYC solution providers (e.g., Jumio, Onfido, Sumsub, or equivalent).
L&D programs and Education subsidy for employees' growth and development
Various team building programs and company events
Wellness and meal allowances
Comprehensive healthcare schemes for employees and dependants
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