iOS Developer
About OKX:
Established in 2017, OKX is a prominent global exchange for trading cryptocurrency spot and derivatives. OKX employs blockchain technology to transform the financial landscape by providing a wide array of innovative and advanced products, solutions, and trading tools. With a user base exceeding 20 million across 180 regions worldwide, OKX aims to offer an interactive platform that enables individuals to explore the crypto world. Together with its exceptional DeFi exchange, OKX also operates OKX Insights, a research division that stays at the forefront of cryptocurrency industry trends. Through an extensive range of crypto services and unwavering dedication to innovation, OKX envisions a financially inclusive world supported by blockchain and decentralized finance.
About the team:
In the role of a mobile software engineer, your primary responsibility will involve the development and maintenance of the core OKX mobile application, which serves millions of active users daily. Collaborating closely with design, product, and other engineering teams, you will identify customer requirements and deliver high-quality new features through rapid iterations. This position offers an excellent opportunity to gain comprehensive experience in the complete life cycle of crypto mobile applications, encompassing professional and retail trading, asset management, and wallets.
Responsibilities:
- Join a global mobile team, contributing to the development of new features for the comprehensive iOS and Android apps.
- Strive for performance optimization to enhance customer satisfaction.
- Keep abreast of industry trends, evaluating new solutions to meet the unique and rapidly expanding business needs.
- Work closely with design and product teams to transform design concepts into scalable features catering to millions of users.
- Collaborate with development teams around the world to provide customized solutions for international users while ensuring consistency within the overall system architecture.
- Maintain high-quality technical documentation and enhance efficiency in cross-office and cross-timezone collaboration.
Requirements:
- Experience in either native iOS/Android development or cross-platform solutions such as ReactNative/Flutter/Lua.
- Proficient in at least one of the following languages: Java/Objective-C/Swift/Kotlin/JavaScript.
- Understanding of common data structures and algorithms.
- Familiarity with agile development processes, including TDD, CI, and Scrum.
- Passionate about mobile technology and adept at building applications for a large user base.
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Technical Cofounder – Mobile App Lead (Equity Role)
Equity + Leadership Role | Remote | Africa-focused
We’re building something bold — a platform designed to empower everyday people through real-world commerce and daily utility. The concept is built, the community is growing, and the brand is already in motion. Now, we’re ready to build the MVP.
We’re looking for a technical cofounder — someone with the skill to build and the vision to lead.
What You’ll Own:
• Lead the mobile app development (Android-first; iOS optional for now)
• Build core features: user registration, listings, wallet logic, escrow integration, and payments
• Collaborate on product direction and tech decisions
• Scale with the company as a core part of the founding team
Ideal Experience:
• You’ve built marketplace-style or P2P mobile apps before
• You’re comfortable with payment APIs like Paystack, Flutterwave, or others
• You understand how to work with wallets, escrow flows, and multi-user platforms
• You’re not just a builder — you want to grow with a brand and own a meaningful slice of it
Your Role Is Not Freelance.
This is a cofounder opportunity — you’ll help shape the product, tech stack, and long-term vision. You’ll receive equity and work closely with the founding team to build a scalable African-first product.