Mobile Software Engineer - Decentralized Wallet Development

About the Role

We are looking for a Mobile Software Engineer to help build and evolve a decentralized mobile wallet powered by a deterministic Rust SDK. This Mobile Software Engineer remote position focuses primarily on Swift development while requiring strong systems thinking and comfort working across Swift ↔ Rust FFI boundaries. You will be working with engineers and developers on the mobile team within our organization, Dash Core Group. This is an opportunity to work remotely in a team that uses modern coding practices and operates without a centralized backend, prioritizing client-side verification and security.

What You'll Do

• Collaborate with engineers to design, implement, and ship new wallet features.
• Implement wallet features on top of a deterministic SDK, ensuring correctness and security across the full stack.
• Improve our mobile SDKs, which may involve enhancements to the foundational Rust SDK.
• Utilize AI-assisted development tools, critically evaluating and validating all generated code.
• Enhance our continuous integration processes.

Requirements

• 3+ years of professional software engineering experience, with significant experience in Swift (production iOS apps).
• Exceptional recent graduates with demonstrable systems, distributed systems, compiler, or cryptography experience are welcome.
• Strong understanding of deterministic state machines and ability to reason about correctness in financial or security-sensitive systems.
• Comfortable working across language boundaries (Swift ↔ Rust FFI), including understanding of memory ownership, threading, and error propagation.
• Conceptual understanding of cryptographic primitives (hashes, signatures, key derivation, Merkle trees).
• Experience building mobile applications that rely on complex local business logic or SDKs.
• Strong debugging skills across stack boundaries (mobile ↔ SDK ↔ networking).
• Proficient with Git and modern collaborative workflows.
• Strong Linux/macOS command-line skills.
• Able to work remotely in a self-directed environment.
• Strong written and spoken English.

Nice to Have

• Working knowledge of Rust.
• Experience working with Rust FFI or other foreign-function interfaces.
• Experience with Android development.
• Understanding of UTXO vs account-based blockchain models.
• Familiarity with SPV or client-side transaction verification.
• Experience with cryptographic or privacy-preserving systems.
• Background in distributed systems.
• Comfort verifying and correcting AI-generated code in security-sensitive environments.

What We Offer

• Contribute to technology at the forefront of cryptocurrency.
• Work on a fully remote team.
• Collaborate with passionate individuals.
• Opportunity to have oversized impacts and drive innovation.
• Engage in an open-source environment.