Staff Engineer - Real-Time Issuing Systems (Rust)

CloudWalk, Inc.; United States; On-site; USD 140,000 - 230,000; Full time

Job summary

CloudWalk, Inc. is building the future of payments with a Rust-based stack. We seek a software engineer to design and operate real-time systems that authorize, process, and reconcile transactions with high performance and security.

You will own critical paths in the issuing flow—authorization, clearing, and ledgering—and collaborate to push architecture across teams, aiming for low latency and fault tolerance. This role requires hands-on debugging and strong systems thinking.

Qualifications

• Experience designing and operating distributed systems.
• Strong understanding of concurrency and fault tolerance.
• Experience with high-reliability fintech/infra is a plus.
• Proficiency in Rust or willingness to learn deeply.

Responsibilities

• Build and operate high-performance services in Rust.
• Own critical paths in the issuing flow (authorization, clearing, ledger).
• Design systems for low latency and reliability.
• Debug complex production issues involving real money.
• Ensure integrity across all transaction flows; drive architecture decisions.

Skills

Distributed systems

Concurrency

Fault tolerance

Rust

Job description

CloudWalk, Inc. is building the future of payments with a Rust-based stack. We seek a software engineer to design and operate real-time systems that authorize, process, and reconcile transactions with high performance and security.

You will own critical paths in the issuing flow—authorization, clearing, and ledgering—and collaborate to push architecture across teams, aiming for low latency and fault tolerance. This role requires hands-on debugging and strong systems thinking.