Principal Blockchain Engineer/Blockchain Architect

Principal Blockchain Engineer/Blockchain Architect (Solana)

Join to apply for the Principal Blockchain Engineer/Blockchain Architect (Solana) role at Reap

Principal Blockchain Engineer/Blockchain Architect (Solana)

2 days ago Be among the first 25 applicants

Join to apply for the Principal Blockchain Engineer/Blockchain Architect (Solana) role at Reap

About Reap
Reap is a global financial technology company headquartered in Hong Kong with employees across multiple countries. We enable financial connectivity and access for businesses worldwide by combining traditional finance with stablecoins for efficient money movement.

About Reap
Reap is a global financial technology company headquartered in Hong Kong with employees across multiple countries. We enable financial connectivity and access for businesses worldwide by combining traditional finance with stablecoins for efficient money movement.
Through our stablecoin-powered corporate cards, payments, and expense management tools, we streamline financial operations and help businesses scale. Our APIs enable businesses to integrate stablecoin-enabled finance into their own products and services—from issuing Visa cards to facilitating cross-border payments.
Backed by leading investors including Index Ventures and HashKey Capital, Reap is building the future of borderless, stablecoin-enabled finance.
About The Role
Reap is looking for a Principal Blockchain Engineer/Blockchain Architect to lead the development of cutting-edge on-chain asset management infrastructure at Reap. This is a unique opportunity to build novel governance and asset management mechanisms on Solana, while leveraging Reap's established presence in the financial technology space. You'll be joining a forward-thinking team at the intersection of traditional finance and blockchain technology, working to reshape how organizations secure and manage their digital assets.
What you’ll do
As the technical lead for our on-chain multisig platform, you'll play a key role in defining the future of on-chain asset management on Solana.

• Solana Contract Development: Design, implement, and deploy high-performance, production-grade smart contracts on the Solana blockchain, with a focus on multisig infrastructure, transaction execution, and advanced features like time locks, spending limits, and role-based permissions.
• Smart Account Architecture: Build and iterate on core on-chain components including proposal systems, voting mechanisms, asset management protocols, and cross-program integration capabilities that enable composability across the Solana ecosystem.
• Cross-functional Systems Design: Work closely with product, finance, and ops to translate real-world fund flows into on-chain execution logic. Ensure alignment between protocol behavior and user experience across the stack.
  

Qualifications
Minimum Requirements:

• Minimum of 5 years in software development, with at least 2 years of experience in building smart contracts on Solana with Rust.
• Proven experience in building and supporting production Solana programs that have handled sizable funds.
• Strong understanding of smart accounts, digital asset management and multi-sig architecture.
• Demonstrated ability to design and reason about complex state machines, proposal logic, and secure transaction orchestration.
• Highly motivated, self-driven, and passionate about building cutting-edge blockchain protocols.
• Peer collaboration and code quality: Maintains a high standard for code quality, reliability, and peer review. Demonstrates strong communication skills, challenges ideas respectfully, and actively contributes to raising the technical bar across the team.
• Fluency in English both in spoken and written forms.
  

Technical Stack

• Backend: Rust , Anchor framework, TypeScript/Rust SDK development, Solana CLI tools
• Infrastructure: TypeScript, Node.js, CI/CD pipelines, AWS
• Web3: Multisig protocols, SPL token standards, asset management systems, Solana DeFi integrations
  

Preferred Qualifications

• Experience with Ethereum smart contract development (Solidity), ERC-4337 account abstraction standards and cross-chain protocol design
• AI fluency: You embrace using AI tools to accelerate development and explore ideas, but you apply them with discernment, not as a replacement. You know when to trust outputs and when to go deeper
• Security Mindset: Experience applying secure software development practices, threat modeling, and understanding of common smart contract vulnerabilities
  

Why Join Us
DeFi Natives: Be at the forefront of financial innovation where traditional finance meets Web3. Work directly with major blockchains including Solana and Ethereum as we continue to expand our multi-chain capabilities.
Global Impact: Your code will power solutions used by hundreds of businesses internationally, handling significant transaction volumes across multiple blockchains.
Backed by Top Investors: Join a company supported by renowned investors including Index Ventures and Hashkey Capital.
Global Team: Collaborate with talented professionals across multiple countries, with flexible hybrid work options that prioritize results over location.
After submitting your application, please check your inbox for a confirmation email. If you don't see it, kindly check your spam or junk folder and adjust your settings to ensure future communication reaches your inbox. You can follow the steps here. Seniority level

• Seniority level Mid-Senior level

Employment type

• Employment type Contract

Job function

• Job function Engineering and Information Technology

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