iOS Developer
Singapore
Full time
Office
Compensation is not specified
Role
Mobile Developer
Description
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.
Skills Required
OKX
Website
www.okx.comCompany size
Not specified
Location
United States
Description
Not specified
Lumixion.io
Frontend Web3 Engineer | React | Solidity, Ethereum, Solana
Remote, USA
Remote, USA
Full time
Remote
About the RoleWe are seeking a React Web3 Developer to build decentralized applications and integrate smart contracts across multiple blockchain platforms. Candidates may have experience with Solana, Ethereum, Solidity, or similar smart contract technologies.ResponsibilitiesDevelop and maintain Web3 applications using ReactIntegrate and interact with smart contracts on various blockchainsImplement wallet connections and on-chain interactionsCollaborate with product and blockchain teamsWrite clean, secure, and well-documented codeRequirementsStrong experience with React and modern frontend developmentExperience with any smart contract platform (Solana, Ethereum, Solidity, or similar)Familiarity with Web3 libraries (ethers.js, web3.js, wagmi, etc.)Solid understanding of blockchain fundamentals and dApp architectureAbility to work independently with strong communication skillsPreferredExperience with DeFi, NFT, or multi-chain applicationsFull-stack Web3 experienceHiring ProcessTechnical TaskShortlisted candidates will be given access to a public repository. The task is to:Review the codebase and suggest improvements and optimizationsShare recommendations and best practices based on the existing implementationInclude screenshots of the terminal and browser as references where applicableSubmissions must be shared as:A Google Docs link, orA PDF documentTechnical Interview with CTOA detailed technical interview will be conducted with our CTO. Topics will include:In-depth discussion of the candidate’s understanding of the reviewed codebaseApproach to development challenges and best practicesCultural and Work Environment Interview with CEOThe final stage involves a meeting with the CEO to evaluate:Cultural fit within the companyWork ethic and attitudeAlignment with company values and visionExpectations regarding work environment and team collaboration
Payment in Crypto
XanaNetworo
Crypto Outreach Hunter – High Commission (Remote)
Full time
Remote
XanaNetwork (@xananetwork) is hiring 5–8 outreach hunters. We just relaunched — same core team with a track record of multi-hundred-million caps and six-figure holder bases. Your job:• Send 300–600 high-quality cold DMs per day on Twitter (DexScreener, Pump.fun, new launches)• Get warm replies → we close Pay (performance-first):• $800–$1,200 USD monthly base• + $1,500–$4,000 bonus per signed client• Top hunters clear $8k–$15k+/mo on commission• Paid trial $100 flat — first 8 who hit 5+ warm replies get hired No experience needed — we’ll train hungry people. Apply → DM @mainnetmike on Twitter with:1. How many DMs you can send daily2. Why you want the role Hungry & coachable only.
Payment in Crypto
John Paulson
Data Analyst
Full time
Remote
Bachelor’s degree in Data Science, Statistics, Mathematics, Computer Science, Economics, or a related quantitative field.Strong analytical and problem-solving skills with the ability to interpret complex datasets.Proficiency in SQL and experience working with relational databases.Solid knowledge of Python (Pandas, NumPy) or R for data analysis and automation.Experience building dashboards or visualizations using Tableau, Power BI, Looker, or similar tools.Understanding of statistical methods, A/B testing, and data modeling techniques.Ability to clearly communicate insights to both technical and non-technical stakeholders.Familiarity with Web3, blockchain metrics, on-chain data, and crypto ecosystems is a strong advantage.Ability to work independently, manage multiple tasks, and deliver on deadlines.Good written and spoken English.
Peeter Luik
Software Developer
Part time
Remote
I’m actively looking for a native Russian speaker who can expertly conduct or participate in job interviews—especially those requiring strong communication, technical understanding, and professional presence. This person should feel at ease discussing software engineering, or related topics, while also being able to assess a candidate’s clarity, depth, and overall fit. If you’re a fluent Russian speaker with the confidence and experience to shine in a technical interview setting, I’d be excited to connect and explore the opportunity with you.
Payment in Crypto
Noe Avila
Smart contract developer for a nft project
Hobbs, USA
Hobbs, USA
Full time
Remote
RAOUTE PROTOCOL is project name. I have the assessment already. Possibility close to 4 million when project has minted target goal
Payment in Crypto