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Senior Mobile Engineer

Biconomy empowers Web3 developers to build seamless, user-friendly dApps that work effortlessly across multiple blockchains. Our battle-tested modular account and execution stack eliminates traditional UX friction points, helping projects accelerate user adoption while reducing development costs. By processing over 50 million transactions across the 300+ dApps we've served, we're powering the future of onchain economies.

The Role: Innovating at the Intersection of AI and DeFi

We’re now building Nomy – an AI-powered crypto assistant that helps users intuitively interact with onchain operations, manage portfolios, and simplify the entire Web3 experience. As we bring this product to life, we’re looking for a Mobile Developer to join our AI team and lead the development of our mobile apps. This is a unique opportunity to build a product at the intersection of AI, crypto, and fintech, and craft seamless mobile experiences that abstract away the complexity of Web3 for everyday users.


What Will You Be Doing?

  • Design, develop, and maintain mobile applications for iOS and Android using React Native or native technologies (Swift/Kotlin).

  • Collaborate closely with AI/ML engineers, backend developers, and product designers to bring Nomy’s features to life.

  • Build sleek, performant, and secure mobile interfaces that simplify complex blockchain interactions.

  • Integrate wallet functionality, real-time onchain data, and LLM-driven user interactions into a cohesive mobile experience.

  • Ensure high code quality through testing, code reviews, and best practices.

  • Own end-to-end mobile features – from prototyping and development to deployment and iteration.

  • Continuously improve the user experience based on user feedback, analytics, and emerging best practices.

Requirements:

Must Have

  • 3+ years of experience building high-quality mobile applications in production.

  • Proficient in React Native and/or native mobile development (Swift for iOS, Kotlin for Android).

  • A strong eye for mobile UI/UX and attention to detail.

  • Familiarity with mobile performance optimization and secure data handling.

  • Experience working with APIs (REST, GraphQL) and state management libraries.

  • Strong communication and collaboration skills in cross-functional teams.

  • Self-starter mindset with the ability to thrive in a fast-paced, remote-first environment.

Nice to Have

  • Experience integrating crypto wallets or Web3 SDKs (ethers.js, WalletConnect, etc).

  • Exposure to AI-powered applications, especially LLM-based assistants or chat UIs.

  • Understanding of blockchain fundamentals: EVM, smart contracts, gas fees, DeFi interactions.

  • Previous work on fintech or security-sensitive mobile applications.


What We Offer:

  • Flexible Working Hours: Enjoy autonomy over your schedule.

  • Generous Vacation Policy: 25 days vacation per year plus public holidays

  • Competitive Salary: With regular performance reviews.

  • Token Allocation: Be rewarded with tokens as part of our compensation package.

  • Growth Opportunities: Be part of an exciting new project with significant career growth potential.

  • Innovative Work Culture: Join a team that’s at the cutting edge of Web3, AI, and DeFi, and help shape the future of the digital economy.

  • Fun and Engaging Team Activities: Game nights, virtual celebrations, and work retreats to keep things exciting.


At Biconomy, we believe in creating a diverse and inclusive workplace. We are committed to being an equal-opportunity employer, and we do not discriminate based on race, national origin, gender, gender identity, sexual orientation, disability, veteran status, age, or any other legally protected status.

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What You Should Know About Senior Mobile Engineer, Biconomy

Join Biconomy as a Senior Mobile Engineer and help redefine how users interact with the blockchain! Biconomy is at the frontier of empowering Web3 developers to create seamless, user-friendly decentralized applications (dApps). We are currently innovating with Nomy – an AI-driven crypto assistant designed to intuitively guide users through onchain operations and portfolio management. As our Senior Mobile Engineer, you will take the reins in developing mobile apps on both iOS and Android platforms, leveraging your expertise in React Native or native development. Collaborate with a dynamic team of AI/ML engineers, backend developers, and product designers to create sleek, secure interfaces that simplify complex blockchain interactions. Here, your skills in mobile UI/UX, code quality, and API integration will shine as you build features from the ground up, ensuring our users enjoy a frictionless experience. With generous vacation policies, flexible working hours, and an exciting work culture filled with game nights and retreats, Biconomy is the perfect place to advance your career while contributing to the future of Web3, AI, and DeFi. If you're passionate about crafting innovative mobile experiences that resonate with everyday users, we want to hear from you!

Frequently Asked Questions (FAQs) for Senior Mobile Engineer Role at Biconomy
What skills are required for the Senior Mobile Engineer position at Biconomy?

To be successful as a Senior Mobile Engineer at Biconomy, candidates must have at least 3 years of experience building high-quality mobile applications across both iOS and Android platforms. Proficiency in React Native or native technologies like Swift and Kotlin is essential. Strong expertise in mobile UI/UX, attention to detail, and familiarity with mobile performance optimization is also required. Additionally, experience with APIs and an ability to work in cross-functional teams are vital for this role.

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What can I expect when applying for the Senior Mobile Engineer position at Biconomy?

When applying for the Senior Mobile Engineer position at Biconomy, you can expect a comprehensive selection process that evaluates your technical skills and your fit within our innovative culture. You'll be assessed on your experience developing mobile applications and your ability to collaborate with AI/ML engineers and product designers. Be prepared to demonstrate your problem-solving capabilities and your passion for simplifying complex blockchain technologies.

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What kind of projects will I work on as a Senior Mobile Engineer at Biconomy?

As a Senior Mobile Engineer at Biconomy, you'll have the opportunity to work on Nomy, an innovative AI-powered crypto assistant. Your role will involve designing and developing mobile applications that enhance users’ interaction with onchain operations. You'll be responsible for integrating advanced features like real-time data interactions and wallet functionalities, ensuring a cohesive and user-friendly mobile experience that simplifies Web3 complexities.

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What is the work culture like for Senior Mobile Engineers at Biconomy?

Biconomy fosters a vibrant and innovative work culture for its Senior Mobile Engineers. You'll enjoy flexible working hours, a generous vacation policy, and a supportive environment that celebrates diversity and inclusion. Team activities such as game nights, virtual celebrations, and off-site retreats create a fun atmosphere that encourages collaboration and creativity, making it an engaging workplace for skill development and growth.

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What career growth opportunities are available for Senior Mobile Engineers at Biconomy?

At Biconomy, Senior Mobile Engineers have significant growth opportunities as part of exciting new projects like Nomy. The company is committed to regular performance evaluations, competitive salaries, and token allocations as a part of the compensation package. As you advance through your projects and contribute to the cutting-edge development of Web3 and AI, there will be ample opportunities to grow in responsibilities and influence within the company.

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Common Interview Questions for Senior Mobile Engineer
Can you describe your experience with React Native for mobile app development?

When answering this question, focus on specific projects where you successfully applied React Native. Highlight your familiarity with the framework's features, your approach to component development, and any performance optimizations you implemented. Talk about how you collaborated with team members to integrate mobile UI elements and ensure a seamless user experience.

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How do you approach mobile UI/UX design?

Discuss your methodology for creating intuitive mobile interfaces in your past projects. Touch on the importance of user feedback and usability testing in shaping the design. Explain how you strive to understand user personas and their needs to tailor interface elements accordingly while ensuring performance and accessibility.

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What strategies do you use to optimize mobile application performance?

In your response, detail the specific techniques you've employed to enhance mobile app performance, such as code splitting, lazy loading images, and optimizing API calls. Talk about your experience measuring app performance using tools and analytics, and how you've utilized this data to make informed decisions for improvements.

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Can you provide an example of how you've integrated an API into a mobile application?

Provide a specific example where you successfully integrated an API, detailing the tools and methods you used. Discuss how you handled data fetching, error management, and optimizing state management within your app. Make sure to showcase how this integration improved functionality or enhanced the user experience.

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What do you know about integrating wallets and Web3 SDKs in mobile applications?

Your answer should demonstrate your understanding of crypto wallet integration in mobile apps. Reference any experience you have with SDKs like ethers.js or WalletConnect. Discuss the challenges you faced and how you overcame them, emphasizing security and user experience.

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How do you ensure code quality in your projects?

Discuss your approach to maintaining code quality, including code reviews, writing tests, and adhering to best practices. Highlight any specific tools you use for code quality assessments and how you incorporate team feedback into improvement cycles, ensuring a robust source code for your applications.

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Tell us about a time you improved user experience based on feedback.

Reflect on a specific case where you collected user feedback and made actionable changes to improve the app's user experience. Detail the process you followed, any obstacles you encountered, and how you measured the success of those enhancements after implementation.

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How do you keep up with new technologies in mobile development?

Share your proactive approach to learning new technologies, such as subscribing to blogs, attending webinars, or participating in developer communities. Explain how you applied any new knowledge in your projects, particularly regarding trends in mobile development or changes in the React Native ecosystem, to showcase your commitment to continuous improvement.

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What challenges have you faced when working in a remote-first environment?

Identify specific challenges like communication barriers or project tracking issues that can arise in remote work setups. Discuss how you have successfully addressed these issues, such as by implementing regular check-ins, using project management tools, or fostering a collaborative online team culture to maintain productivity.

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Why are you interested in the Senior Mobile Engineer role at Biconomy?

Your response should align your career goals with Biconomy's mission and the senior mobile engineer role. Discuss your passion for Web3 and AI, and how you can leverage your skills to impact the company positively. Show enthusiasm for the innovative nature of Biconomy and the exciting challenges this position presents.

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March 26, 2025

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