Payward

rust developer for financial infrastructure

In short

Remote Rust developer role at Kraken's Payward Services building reliable network/async Rust services for trading, payments, and crypto infrastructure in a fintech B2B platform. Requires 3+ years of software engineering experience, strong Rust networking/async skills, a security-first design mindset, and solid understanding of distributed systems, RPC protocols, and Kafka. Candidate should be able to debug autonomously across OS, network, and application layers and take end-to-end ownership of systems.

About
Payward Services is an enterprise infrastructure platform that enables companies to integrate trading, payments, funding, and digital asset services through a unified system. It provides liquidity, custody, compliance, risk management, and settlement capabilities for fintechs, banks, brokerages, and payment providers.
Responsibilities
•Design and implement reliable Rust services and libraries for trading, payments, and crypto experiences
•Write reusable, testable, efficient code that scales across teams and supports revenue-critical systems while maintaining safety and security
•Collaborate on distributed systems architecture and translate evolving product requirements into resilient, low-latency solutions
•Contribute to a high-performance, product-driven engineering culture alongside Rust engineers
Requirements
•3+ years of software engineering experience
•Proficiency in writing network services or asynchronous code in Rust
•A security-first mindset in system design
•Ability to debug issues autonomously across the OS, network, and application stack
•Solid understanding of distributed systems, RPC protocols, Kafka, and event-driven systems
•Ability to collaborate with product teams to gather requirements and constraints
•End-to-end ownership of systems and libraries
Nice to have
•Experience building B2B products, ideally in fintech or crypto
Conditions
•Applications are accepted on an ongoing basis unless a specific deadline is stated
•Candidates may redact or remove resume information identifying age, date of birth, or dates of educational attendance or graduation
•Qualified applicants with criminal histories are considered in accordance with the San Francisco Fair Chance Ordinance
•Job-related skills or work-style assessments may be part of the hiring process; results are considered alongside experience and interviews and are not the sole basis for an employment decision
•Equal opportunity employer; discrimination and harassment based on protected characteristics are not tolerated

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