Software Architect – AI & Banking

Job DescriptionSoftware Architect – AI & Banking

Location: Kuala Lumpur / Hybrid Employment Type: Full-time Reporting to: CTO, working closely with the CIO, Cloud Architect and Agentic AI EngineerAbout XIONEXXIONEX is building X-One, an AI-native banking operations platform combining agentic AI, deterministic controls, human oversight and auditable workflows.XIONEX also operates as an AI-native company.

AI agents perform the work they can perform, while humans remain accountable for review, judgement and final decisions. Our specialists do not compete with AI agents. They direct, challenge and govern them.The RoleWe are looking for a Software Architect – AI & Banking to own the application and system architecture of X-One.You will define how the platform is structured, establish clear boundaries between traditional banking logic and AI-driven capabilities, and ensure that prototypes and POCs are developed into secure, scalable and production-ready solutions.You will also review architecture, designs and code produced by developers and AI-assisted engineering workflows, ensuring that the platform remains maintainable, auditable and suitable for a regulated banking environment.Key ResponsibilitiesDefine and maintain the software and systems reference architecture for X-One.Design clear boundaries between:Deterministic banking and compliance logicAgentic AI and LLM-driven behaviourShared platform servicesProduct-specific banking modulesDefine service, API, event, data and integration contracts.Review and approve architecture proposals, technical designs and AI-generated engineering outputs.Establish appropriate controls for where AI agents can operate autonomously and where human review or approval is required.Guide backend architecture using Python and FastAPI, together with React/TypeScript integration patterns.Shape data architecture using PostgreSQL, pgvector, workflows and audit trails.Drive the transition of POCs and prototypes into secure, testable and maintainable production solutions.Establish architecture decision records (ADRs), design reviews and production-readiness criteria.Ensure solutions support auditability, explainability, human approval and customer-instance isolation.Partner with the Cloud Architect on deployment, resilience, observability and operational requirements.What We’re Looking ForStrong experience as a Software Architect, Systems Architect, Solution Architect or senior technical lead.Proven experience taking complex applications or platforms from prototype/POC into production.Strong knowledge of backend, API and integration architecture.Experience designing modular, distributed or event-driven systems.Strong understanding of domain boundaries, data architecture, versioning and system evolution.Ability to review and improve architecture, technical designs and code produced by other engineers.Good judgement across security, scalability, performance, maintainability and technical debt.Comfortable remaining technically hands-on rather than operating purely at a conceptual architecture level.Willingness to work with AI agents and AI-assisted engineering as part of the software development process.Preferred Technical ExperienceExperience in several of the following would be advantageous:Python / FastAPIPostgreSQL / pgvectorRedisOpenAPI / REST APIsReact / TypeScriptAI or LLM-integrated applicationsRAG, vector search or agentic AI workflowsAI-assisted software developmentWorkflow or decision-management platformsEvent-driven and distributed architecturesCI/CD and modern software engineering practicesBanking & Regulatory ExperienceExperience in one or more of the following would be beneficial:Banking or fintechInsurance or another regulated industryCompliance or audit-heavy systemsHuman-in-the-loop approval processesExplainable decision systemsArchitecture governance and formal design reviewsWhat Success Looks LikeWithin the first year, XIONEX aims to have:A clear and approved software reference architectureRepeatable standards for taking POCs into productionGoverned use of AI agents within software engineeringClear separation between deterministic banking logic and probabilistic AI componentsExplicit human review and decision gatesArchitecture documentation suitable for engineering, operations and customer due diligenceWhat We OfferPermanent full-time employmentHybrid working in Kuala LumpurDirect access to founders and senior leadership13% employer EPF contributionMedical benefits and role-dependent annual leaveA central role in shaping the technical architecture and AI-native engineering model of XIONEX