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Requirements and responsibilities
At CloudWalk, we are building the core infrastructure behind our credit card operation — from authorization to clearing — handling real-world financial transactions at scale.This is not a typical backend role.You will work on systems where latency matters, correctness is critical, and failures have real impact.The RoleYou will design and build the systems that authorize, process, and reconcile transactions in real time — ensuring performance, correctness, and security at every step.Our stack is heavily based on Rust, and we operate with full ownership of the issuing flow, including authorization, clearing, and ledgering.What You'll DoBuild and operate high-performance services in RustOwn critical paths in the issuing flow (authorization, clearing, ledger)Design systems for low latency, high reliability, and fault toleranceDebug complex production issues involving real moneyEnsure system integrity and correctness across all transaction flowsDrive architecture decisions across teamsWhat We're Looking ForStrong experience with distributed systemsSolid understanding of concurrency, consistency, and fault toleranceExperience with high-reliability systems (fintech, infra, etc) is a plusExperience with Rust, or willingness to go deep into itHands-on mindset and strong debugging skillsAI as a MultiplierWe use AI as part of how we build.Leverage AI tools to accelerate development and debuggingImprove engineering workflows using automation and agentsIncrease team throughput without compromising qualitySecurity by DesignSecurity is not a separate layer — it is part of how we build systems.Design systems that are secure by defaultHandle sensitive financial data with strict guaranteesEnsure integrity and correctness across all transaction flowsBuild systems where incorrect behavior is not acceptableWhy This Rolemove real moneyrun under strict latency constraintsmust be correct all the timeoperate at real-world scaleThis is engineering where things actually matter.The Future We See:At CloudWalk, we envision a future where AI empowers every field to reach new heights:People teams leveraging AI to transform talent acquisition and employee development.Marketing professionals creating data-driven, AI-powered campaign strategies.Customer Success teams enhancing client experiences with intelligent solutions.Risk analysts combining human expertise with AI to navigate complexities.Designers collaborating with AI to push creative boundaries.We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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