Senior/Staff iOS Developer
About OKX:
Established in 2017, OKX stands out as a top-tier cryptocurrency exchange for spot and derivatives trading on a global scale. By leveraging blockchain technology, OKX disrupts the financial landscape by offering a wide array of advanced products, solutions, and trading tools. Trusted by over 20 million users across 180 countries, OKX is dedicated to providing a platform that enables individuals to delve into the realm of cryptocurrencies. Besides its exceptional DeFi exchange, OKX houses OKX Insights, a research division that remains at the forefront of cryptocurrency industry trends. With a vast selection of crypto services and an unwavering focus on innovation, OKX strives to establish a financially inclusive world underpinned by blockchain and decentralized finance.
About the Team:
The role of a mobile software engineer at OKX involves the development and upkeep of a fundamental OKX app catering to a substantial user base. Collaborating across various functions such as design, product, and engineering, you will identify user requirements and roll out high-quality features efficiently. This position offers an opportunity to gain insights into the complete journey of building crypto mobile applications spanning professional/retail trading, asset management, and wallets.
Responsibilities:
- Work alongside a global mobile team to introduce new features to the comprehensive iOS and Android apps.
- Prioritize performance optimization to enhance user satisfaction.
- Stay updated on industry advancements, exploring innovative solutions tailored to our evolving business demands.
- Collaborate closely with design and product teams to translate design concepts into robust features serving millions of users.
- Engage with international development teams to deliver tailored solutions while ensuring alignment with the overarching architecture.
- Uphold top-quality technical documentation and enhance efficiency in cross-office/timezone collaboration.
Requirements:
- Proficiency in either native iOS/Android development or cross-platform technologies like ReactNative, Flutter, or Lua.
- Mastery of at least one of the languages: Java, Objective-C, Swift, Kotlin, or JavaScript.
- Thorough understanding of common data structures and algorithms.
- Embrace agile development methodologies like TDD, CI, and Scrum.
- Zeal for mobile technology and crafting applications for a broad user base.
Product Manager – Portfolio Companies
Sirex Portfolio Companies
Salary: $135,000 – $190,000 USD base + equity
Location: Remote-first
About the role Own product strategy and roadmap for 1–2 portfolio projects (DeFi protocols, trading platforms or RWA infrastructure).
What you’ll do
Define vision, prioritize features and write specs
Work directly with smart-contract and frontend teams
Design user flows and drive product-market fit
Run user research and iterate fast
Requirements
4+ years Product Management experience
Previous Web3/DeFi product experience mandatory
Strong technical intuition
Apply → Send CV + 1 strongest product case
Frontend Engineer – Web3 Products
Sirex Portfolio Companies
Salary: $120,000 – $175,000 USD base + equity
Location: Remote-first
About the role Build beautiful, high-performance frontends for DeFi, RWA and agent platforms (Next.js + Wagmi/Viem stack).
What you’ll do
Ship trading interfaces, dashboards and wallet flows
Optimize for mobile and lightning-fast UX
Integrate with smart contracts and oracles
Work directly with design and product teams
Requirements
3+ years Next.js / React + TypeScript
Strong experience with Wagmi, Viem, RainbowKit or similar
Web3 product intuition (wallets, transactions, gas UX)
Apply → Send CV + GitHub
On-Chain Data Analyst
Sirex Fund + Portfolio
Salary: $110,000 – $160,000 USD base + equity
Location: Remote-first
About the role
Turn raw blockchain data into actionable investment insights and portfolio monitoring tools.
What you’ll do
Build and maintain Dune dashboards + custom indexers
Track TVL, user activity, token flows and protocol health
Create weekly investment memos and anomaly alerts
Support due diligence with on-chain forensics
Requirements
Strong SQL + Python experience
Deep knowledge of The Graph, Dune, Flipside or custom subgraphs
Previous crypto research or trading background
Apply → Send CV + 1 example Dune dashboard
Operations Associate / Chief of Staff
Sirex Fund Salary: $95,000 – $135,000 USD base + carry Location: Remote-first
About the role Be the right-hand person to partners: run fund operations, portfolio support and internal processes.
What you’ll do
Manage deal flow, data rooms and investment memos
Coordinate portfolio reporting and founder updates
Handle legal, compliance and admin tasks
Support events, LP communication and hiring
Requirements
2–4 years in VC, startup ops or consulting
Extremely organized and fast-moving
Web3/native crypto understanding is mandatory
Apply → Send CV + short note “Why you’d be a great CoS”
Community & Growth Lead
Sirex Portfolio Companies Salary: $110,000 – $155,000 USD base + equity + token package Location: Remote-first
About the role Own community strategy and growth for 2–3 portfolio projects (AI agents, RWA platforms, DeFi protocols).
What you’ll do
Build and scale Telegram, Discord, X and on-chain communities
Run engagement campaigns, AMAs, airdrops and incentive programs
Create content calendars and growth experiments
Track metrics and report directly to founders
Requirements
3+ years community/growth experience in Web3
Proven track record of growing communities from 0 to 10k+ active members
Strong writing and meme/game theory skills
Apply → Send CV