We are looking for a motivated Rust Engineer to join our international team. This is a fully English-speaking role where you will work in a multicultural environment alongside developers from around the world. You will participate in the design and evolution of our core internet lending system, helping build high-availability, low-latency financial-grade services within an AI-driven development environment. If you enjoy working in a team with a strong technical atmosphere and a culture that champions efficient engineering, this is a great stage for you.
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Responsibilities:
- Feature & Module Development: Participate in the development of the internet lending system, including the design and implementation of modules such as loan origination, risk decisioning, transaction processing, and ledger, ensuring stability and data consistency under high concurrency.
- Code Quality & Maintenance: Write clean, idiomatic code following team guidelines. Write comprehensive unit and integration tests. Participate in code reviews to ensure maintainability and adherence to best practices.
- Architecture Evolution: Contribute to Domain-Driven Design modeling and microservices architecture discussions, helping build scalable and maintainable system blueprints.
- AI-Assisted Development: Actively use AI coding tools (such as Claude Code) for code generation, refactoring, test coverage, and troubleshooting, contributing to the team's AI-assisted development workflow.
- Performance & Stability: Participate in system performance tuning, resolving memory safety issues, concurrency races, and database bottlenecks; help ensure services meet financial-grade SLAs.
- International Collaboration: Participate in code reviews, technical discussions, and cross-departmental communication in an English environment.
Requirements:
- Education: Bachelor's degree or higher in Computer Science, Software Engineering, or a related technical field.
- Language Proficiency: Working English — comfortable in technical discussions, code reviews, and asynchronous written communication.
- Backend Experience: 3+ years of backend development experience, with hands-on experience in at least one systems or high-performance backend language (Rust, Go, Java, or C++). Solid foundation in concurrency, memory management, and asynchronous programming, with code adhering to idiomatic style.
- Architecture & Domain Design: Understanding of Domain-Driven Design; interest in identifying bounded contexts and designing clear aggregate roots and entities. Experience with distributed systems is a plus.
- Database Fundamentals: Solid working knowledge of PostgreSQL or MySQL, able to write efficient SQL queries and understand basic indexing.
- AI Engineering Mindset: Willing to integrate AI coding tools (Claude Code, Cursor, Copilot, etc.) into the daily workflow; able to write quality prompts to assist in solving complex logic.
- Professional Qualities: Sense of responsibility and security awareness, particularly regarding financial fund safety; comfortable with asynchronous collaboration across international teams; self-driven.
Preferred Qualifications:
- Prior Rust experience, including familiarity with Tokio, Serde, SQLx, and Rust's ownership/borrowing model.
- Hands-on experience with Redis, Kafka, or other caching/messaging middleware.
- Background in Fintech or core lending system development.
- Familiarity with cloud-native technology stacks (K8s, Docker, AWS/GCP).
- Contributions to the Rust open-source community or a technical blog.
- Prior experience with Claude Code, Cursor, or similar AI pair-programming tools.
