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Software Engineer (iOS) - Performance Optimization

About OKX:

Founded in 2017, OKX is a leading exchange platform for cryptocurrency spot and derivatives trading. Utilizing blockchain technology, OKX offers a wide range of innovative products, solutions, and trading tools that have reshaped the financial ecosystem. With a global user base of over 20 million individuals across 180 regions, OKX aims to provide a user-friendly platform that enables everyone to explore the world of crypto. Furthermore, OKX Insights, the research arm of OKX, stays ahead of cryptocurrency industry trends. With a commitment to innovation, OKX envisions a future of financial access driven by blockchain and decentralized finance.

About the team:

As a mobile software engineer, you will be responsible for building and maintaining the core OKX mobile application that serves millions of daily active users. Collaborating with design, product, and other engineering teams, you will identify customer needs and deliver high-quality new features through fast iterations. This position provides an opportunity to gain comprehensive knowledge of cryptocurrency mobile applications, including trading, asset management, and wallets.


Develop mobile infrastructure and tools to optimize engineering efficiency

Analyze and optimize UI and infrastructure application code for enhanced performance

Create and maintain reusable iOS app components

Collaborate with product engineering teams to offer technical solutions and implement best practices

Enhance project structure and workflow to improve engineering productivity, efficiency, and quality

Drive architecture innovations to support world-class mobile app development


Bachelor's degree or equivalent practical experience

Minimum of 3 years of industry experience in iOS development

Demonstrated experience in building and releasing sophisticated iOS app products with frequent iteration

Proven track record of optimizing app performance, reducing memory usage, and minimizing package size

Strong understanding of design patterns and principles, with extensive knowledge of iOS tech stack

Proficiency in Objective-C, Swift, C/C++, and tools like Xcode and instruments

Deep knowledge of iOS SDK and ability to create scalable, dynamic, and high-performance UI components

Familiarity with remote APIs, concurrency, layouts, transitions, animations, client-side persistence, and architectural patterns in mobile apps


Experience working in complex, cross-functional, or cross-business projects within a matrix organization

Background in mobile architecture/infrastructure team with in-depth knowledge of related tech stack

Expertise in sub-engineering areas such as performance optimization, toolchain, automated testing, and design patterns

Excellent communication skills, both within a team and in delivering impactful business outcomes autonomously
Full time

Member of Technical Staff, iOS Engineer

About Anchorage Digital

At Anchorage Digital, we are revolutionizing the digital asset space by creating an advanced platform for institutions to participate in the world of crypto. We were founded in 2017 and are a regulated crypto platform that offers integrated financial services and infrastructure solutions to institutions. Our offerings include secure custody, regulatory compliance, a wide range of products, and exceptional client service. We are seeking individuals who are humble, creative, and eager to learn to join our team and contribute to our mission.

Job Description

We are a global team with a remote-friendly work environment. However, we also offer the option to work in-office in various locations, including New York City, Sioux Falls, Porto, Lisbon, and Singapore. For team members who are not located near our offices, we organize and sponsor quarterly in-person collaboration days to foster teamwork and strengthen our tight-knit community.

As the demand for Cryptoassets and blockchain technology continues to grow, the expectations for our product offerings expand as well. As a member of our team, you will be involved in building the foundations of our platform and have the opportunity to make a significant impact on every team.

Specifically, if you are an iOS Engineer, you will have the chance to improve the workflows of other iOS developers and actively contribute to the development of foundational features.

Responsibilities: Technical Skills

Create a user-friendly mobile experience that instills trust and safety.

Review code across the entire stack and actively participate in product development.

Cultivate a culture of efficient deterministic testing, focusing on reducing tech debt and bureaucracy.

Take ownership of the codebase and utilize the latest technologies to improve it.

Responsibilities: Complexity and Impact of Work

Be at the forefront of the blockchain/crypto movement and innovation in SecOps.

Find the right balance between progress and perfection, delivering quickly while maintaining high-quality standards.

Responsibilities: Organizational Knowledge

Collaborate effectively with colleagues from various teams and functions.

Contribute to scaling the team to support our expanding operations.

Responsibilities: Communication and Influence

Have a voice in influencing architecture and product roadmap decisions.


You could be a suitable candidate for this role if you have:

Relevant experience building mobile applications and UI from scratch and supporting them for a significant duration.

A genuine commitment to code quality and test infrastructure.

A focus on delivering a great end-user experience and business value rather than chasing trendy technologies.

Personal characteristics such as creativity, humility, ambition, attention to detail, hard work ethic, trustworthiness, eagerness to learn, methodical thinking, action-oriented mindset, and resilience.

Familiarity with Apple's App Store and the ability to navigate its processes throughout the development and product lifecycle.

Stay updated on the iOS ecosystem and are comfortable working with new concepts.

Solid knowledge of computer science fundamentals, including concurrency, algorithms, and data structures.

Although not required, having the following experience would be a plus:

Familiarity with Secure Enclave technology.

Past experience developing mobile applications for luxury customers.

Enjoyment and appreciation for the soundtrack of Hamilton, which recounts the founding of a new financial system. :)

Compensation at Anchorage Digital

We offer competitive compensation packages that are market-driven and based on data. Our full-time employees receive a salary that exceeds market rates, meaningful equity, and a comprehensive perks and benefits package. The salary range for this position is €63,800 - €75,000, which may vary depending on location and job grade. During the interview process, the salary range may be narrowed down based on your skills, abilities, and experience. We conduct annual third-party audits to compare our compensation to industry standards.


We provide market-leading benefits to our employees, including 100% coverage for health, dental, and vision for you and your dependents. Additionally, we offer a wide range of perks and benefits to our global team, emphasizing our commitment to our employees' well-being and satisfaction. More information about our comprehensive benefits package can be found on our LinkedIn page.

At Anchorage Digital, we have created a supportive and inclusive work environment where every individual feels respected, supported, and connected. We celebrate diversity and believe that embracing who we are allows us to exceed our own expectations and deliver exceptional work. We are an Equal Opportunity Employer and consider all qualified applicants regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or veteran status. We also consider applicants' criminal histories as allowable by law. Anchorage Digital operates under various subsidiaries, including Anchorage Hold LLC, Anchorage Digital Bank National Association, Anchorage Lending CA LLC, and Anchorage Digital Singapore Pte Ltd. Protecting the privacy of our clients' personal and financial information is of utmost importance to us, and we adhere to strict privacy policies and regulations. More information can be found in our privacy policy.
Full time

(Senior) Software Engineer – Mobile Developer (Android/iOS)

Mobile Software Engineer at OKX

Who We Are

OKX is a leading cryptocurrency exchange that believes in reshaping the future with technology. Founded in 2017, we have innovatively adopted blockchain technology to reshape the financial ecosystem by offering diverse and sophisticated products, solutions, and trading tools. Trusted by over 20 million users worldwide, we strive to provide an engaging platform that empowers individuals to explore the world of crypto. In addition to our world-class DeFi exchange, we have a research arm, OKX Insights, that stays at the forefront of the latest trends in the cryptocurrency industry. With our extensive range of crypto products and services, we envision a world of financial access backed by blockchain and decentralized finance.

We invest in our people and cultivate an engaging culture where we win as a team and embrace change. We are committed to creating a friendly, diverse, and rewarding environment for all. We value and respect individuals from all backgrounds and provide equal opportunities for development and growth.

About the Opportunity

As a Mobile Software Engineer at OKX, you will be responsible for building and maintaining the core OKX app, with millions of daily active users. You will collaborate with design, product, and engineering teams to identify customer needs and deliver high-quality new features through fast iterations. This opportunity will allow you to learn the full life cycle of a crypto mobile application, including pro/retail trading, asset management, and wallet.

What You’ll Be Doing

Work as part of a global mobile team to develop new features for the iOS and Android apps.

Optimize performance to maximize customer satisfaction.

Stay updated on industry trends and evaluate new solutions to address business needs.

Translate design ideas into scalable quality features for millions of users.

Collaborate with global development teams to deliver customized solutions for international users while maintaining architectural consistency.

Maintain high-quality technical documentation and improve efficiency in cross-office and timezone cooperation.

What We Look For In You

Experience in either native iOS/Android development or cross-platform solutions like ReactNative/Flutter/Lua.

Proficiency in at least one of the following languages: Java, Objective-C, Swift, or JavaScript.

Understanding of common data structures and algorithms.

Familiarity with agile development processes including TDD, CI, and Scrum.

Passion for mobile technology and building applications for a large user base.

Apply here
Full time
Hong Kong

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.


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.


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.
Full time

iOS Mobile Engineer - Crypto Investor Experience

Who We Are

OKX is transforming global systems through our advanced digital asset exchange, Web3 portal, and blockchain ecosystems. Our mission is to create a fairer, more transparent, and accessible society using blockchain technology. With over 50 million users, a team of 3000+ employees, and a presence in 180+ countries, we are a trusted and reliable platform backed by Proof of Reserves. As proud supporters of the Arts and Sports, we are honored to partner with @McLarenF1, @ManCity, and @Tribeca.

About the Opportunity

As part of our efforts to provide the best crypto investment experience, you will have the opportunity to work on exciting features such as trading markets, trading experiences, and social and Web3 functionalities for crypto investors.

What You’ll Be Doing

Joining our global mobile team to develop new features for our native iOS mobile app

Striving for performance optimization and ensuring maximum customer satisfaction

Keeping up with industry trends and evaluating new solutions to meet our unique and rapidly evolving business needs

Working closely with design and product teams to translate design ideas into scalable, high-quality features used by millions of users

Collaborating with development teams across the globe to deliver customized solutions for international users while maintaining consistency in overall architecture

Maintaining high-quality technical documentation and enhancing efficiency in cross-office and timezone collaboration

What We Look For In You

At least 5 years of experience in iOS mobile development, with proficiency in Swift, iOS SDK, common iOS design patterns, and a deep understanding of UIKit components

Strong experience in iOS networking layer, with in-depth knowledge of sockets, TCP/IP, and HTTP protocols

Proficiency in Swift/Objective-C programming, with a solid understanding of common data structures and network programming

Familiarity with agile development processes, including TDD, CI, and Scrum

Passion for mobile technology and building applications for large user bases

Experience working with teams in different offices and timezones

If based in the Bay Area, ability to work a blend of 2+3 or 3+2 in-office/remote schedule (Office in San Jose)

Nice to Haves

Experience in performance optimization for scalable mobile applications

Passion for cryptocurrency

Perks & Benefits

Competitive total compensation package

Learning and development programs, including an education subsidy for personal growth and development

Various team building programs and company events

OKX Statement

The base salary range for this position is $166,000 to $280,000, which may vary based on factors such as job-related knowledge, skills, experience, and market location. In addition to the salary, a performance bonus and long-term incentives may be provided as part of the compensation package, along with a comprehensive range of medical, financial, and other benefits based on the position offered. Applications should be submitted through the OKX internal or external careers site.

OKX is dedicated to providing equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, non-job related physical or mental disability, or protected veteran status. As per the San Francisco Fair Chance Ordinance, we will consider qualified applicants with arrest and conviction records for employment.
Full time
San Jose, United States

Senior iOS Engineer

Senior iOS Engineer at Compound Labs

At Compound Labs, we are dedicated to revolutionizing the world of finance by addressing the problem of idle cryptocurrencies and providing a pathway for assets to be utilized onchain. We develop protocols, governance systems, software tools, and financial products to enable a global, secure, and open future of finance.

We are seeking a talented Senior iOS Engineer to join our team and play a key role in building exceptional user experiences that are both innovative and scalable across all our business lines. As a member of our team, you will have the opportunity to influence the direction, design, and execution of our future product experiences. We value continuous learning, use functional programming languages and tools, and prioritize correct coding principles.

As a Senior iOS Engineer at Compound Labs, your responsibilities will include guiding the long-term technical direction and vision for our mobile products, building and releasing high-quality mobile experiences with a focus on performance and reliability, collaborating with Design, Product, and Engineering teams to ensure a user-friendly app experience, working closely with other engineers to ensure cohesive user experiences across our products, leading decision-making efforts for our iOS products to achieve business goals, collaborating with a small team to plan and own projects with a long-term impact, and mentoring and teaching other engineers.

To be successful in this role, you should have a proven track record in developing mobile applications and shipping user features, a solid understanding of current trends and best practices in iOS software development, exceptional judgment and problem-solving skills, at least 5 years of professional engineering experience, a deep understanding of iOS frameworks and programming languages such as SwiftUI, UIKit, Swift, and Objective-C, and a Bachelor's degree in Computer Science or a related technical field, or equivalent practical experience.

Experience with Web3 frontend technologies like Web3.swift, creating custom design systems or declarative UI frameworks, building elegant products across iOS devices, using frontend frameworks like React, Next.js, or Angular, and having a background in trading or financial services, blockchain, and related systems will be considered a plus.

In return, we offer competitive compensation, stock options in Compound Labs, 3+ weeks of vacation, paid parental leave, full medical, dental, and vision insurance, a 401(k) plan, company on-sites around the world, and the option to work remotely with the opportunity to work in our downtown SF office with transportation stipends.

Compound Labs is an equal opportunity employer and values diversity in our company. We encourage qualified candidates of all backgrounds to apply.

To learn more about Compound Labs, visit our website and check out the investors who support us, including Andreessen Horowitz, Bain Capital, Paradigm, Polychain Capital, and Coinbase Ventures.
Full time
Time, U.S.

Mobile Application Developer - React Native


We are searching for a React Native developer who is interested in developing high-performance mobile applications for both iOS and Android platforms. You will be responsible for designing and developing these applications while collaborating with other teams involved in the product infrastructure. The development process is a team effort, so strong teamwork skills and a dedication to perfection are crucial.


Develop flawless user interfaces (UIs) for mobile platforms.

Utilize native APIs to enhance integration with iOS and Android.

Identify and resolve bugs and performance issues to ensure optimal performance.

Collaborate with the open-source community to implement critical software fixes and updates.

Maintain codebase and conduct automated tests to guarantee the highest quality product.

Transition existing React web applications to React Native.


Proficiency and experience with React Native.

Strong understanding of JavaScript and TypeScript, including ES6+ syntax.

Knowledge of object-oriented programming.

Ability to write well-documented and clean JavaScript code.

Expertise in handling third-party dependencies and resolving conflicts.

Familiarity with native build tools such as XCode, Gradle, Android Studio, and IntelliJ.

Understanding of REST APIs, the document request model, and offline storage.
Full time
Mumbai, India

Senior Full Stack Developer

Job Description

About Openmesh and Xnode:

In today's world, a small number of corporations control the majority of data and IT infrastructure. This centralized control leads to social inequality, scandals, and even conflict. Openmesh is a cutting-edge open-source cloud infrastructure and data network that aims to change this. It provides a decentralized and transparent platform for storing global data without intermediaries. Openmesh currently covers approximately 80% of the crypto and web3 ecosystem and plans to expand into public health and scientific research data.

At the heart of this vision is Xnode, our flagship product. Xnode enables developers to easily build their own decentralized data clouds, saving time and costs. With Xnode, developers can access data APIs, query engines, and analytics tools in minutes. In addition, we offer Pythia, a powerful analytics and query engine that transforms raw data into actionable insights. Our unified APIs provide access to all crypto and web3 data without licenses or fees.

Our vision is to democratize data and address information asymmetry by providing universal access to reliable and unaltered information. We are an open-source community with no single authority controlling the infrastructure or technology stack.

About the Role:

As a Senior Full Stack Developer, you will lead the development of web3 and DeFi solutions within Xnode, UnifiedAPIS, and Pythia. You will collaborate with front-end and back-end teams to ensure seamless integration and functionality. This role offers the opportunity to contribute to the development of innovative solutions and establish the organization as a leader in the web3 and DeFi space.

Key Responsibilities:

Lead end-to-end development for web3 and DeFi solutions within Xnode, UnifiedAPIS, and Pythia.

Collaborate with front-end and back-end teams to ensure seamless integration and functionality.

Contribute to the development of comprehensive products by bridging front-end and back-end development.

Ensure comprehensive and integrated solutions by implementing end-to-end development practices.

Contribute to the creation of innovative products in the web3 and DeFi space, establishing the organization as a leader.

Drive collaborative development across Xnode, UnifiedAPIS, and Pythia to create powerful and unified solutions.


Bachelor's or Master's degree in Computer Science or a related field.

Proven experience in full-stack development, with a focus on web3 and DeFi solutions.

Proficiency in front-end and back-end technologies, such as React, Node.js, or Ethereum.

Strong leadership skills with experience guiding high-performing teams for complex projects.

Excellent communication skills, with the ability to articulate technical concepts to diverse audiences.

Strategic thinker who can identify industry trends and apply them to product development.

Why Join Us:

Lead the development of a revolutionary product reshaping data management and accessibility.

Collaborate with a global community of innovators and thought leaders in the decentralized space.

Make a significant impact on the worldwide access and utilization of data, promoting transparency and efficiency.

Enjoy a dynamic, challenging, and rewarding work environment, along with competitive compensation and benefits.

How to Apply:

Interested candidates should submit a resume and a cover letter expressing their passion for decentralized technologies and their vision for Xnode's future.
Full time

Mobile Developer - iOS

About the role:

As a member of our team, your focus will be on creating exceptional iOS applications using the latest technology stack. Our apps are developed exclusively in Swift and follow the MVVM-C architecture. Proficiency in reactive programming, particularly RxSwift/Combine, would be advantageous.

The impact you will make:

Collaborate with cross-functional teams in tech and product to develop innovative features for a large global user base.

Provide valuable feedback on product requirements and designs, leveraging your expertise in iOS development.

Deliver high-quality, modularized, and scalable code within reasonable timelines.

Engage in regular sync-ups with your feature team and the entire iOS team to ensure that your ideas and insights are valued.

Your skills:

Minimum of 2 years of full-time experience in iOS development (no upper limit)

Proficiency in Swift, UIKit, and strong understanding of iOS development best practices.

Familiarity with the MVVM architecture (experience with SnapKit and RxSwift/Combine is highly desirable)

Experience in writing unit tests and snapshot/UI tests

Proficiency in Git and knowledge of branching models (e.g., Git-flow, Trunk Based Development)

Strong problem-solving skills and a passion for continuous learning.

Excellent communication and collaboration abilities.

A focus on producing high-quality code and exceptional user experiences.

If you are an iOS developer who thrives in a collaborative environment, we look forward to hearing from you. Join our team and contribute to building cutting-edge mobile applications that make a difference. Please include examples of your work or links to your portfolio with your application.

Life @

Be empowered to think big and explore new opportunities while working alongside a talented, ambitious, and supportive team. We provide a proactive and transformational working environment that encourages employees to find innovative solutions. Develop new skill sets that positively impact your personal and professional growth. Our work culture is built on collaboration and support among colleagues. We are one cohesive team, working towards the ultimate goal of making cryptocurrency accessible to everyone.

Are you ready to start your future with us?


Competitive salary

Generous annual leave entitlement, including birthday and work anniversary

Internal mobility program for career development

Work perks, including a Visa card upon joining

Our benefits packages may vary depending on regional requirements. Learn more from our talent acquisition team.


Established in 2016, is the world's fastest-growing global cryptocurrency platform, serving more than 80 million customers. Our vision is to bring cryptocurrency to every wallet, prioritizing security, privacy, and compliance. We are committed to accelerating the adoption of cryptocurrency through innovation, fostering the growth of builders, creators, and entrepreneurs, and creating a fairer and more equitable digital ecosystem.

Learn more at is an equal opportunities employer, striving to create a fair and transparent environment where everyone has equal opportunities. We value diversity and inclusion, actively seeking candidates with diverse backgrounds, perspectives, and skills to strengthen our team.

Personal data provided by applicants will only be used for recruitment purposes.

Please note that only shortlisted candidates will be contacted.
Full time
Jakarta, Indonesia