AI Product Builder

Role Description

Nymbus is building the next generation of fintech platforms and that requires a new kind of product builder. This role is the engine of the squad — the person who takes product intent and turns it into working software. You will design, specify, and build products using AI-first methodology, working hand-in-hand with your Architect and Shipper to deliver outcomes end-to-end.

At Nymbus, the AI Product Builder is the primary maker in our squad triad model. You are responsible for transforming product vision into reality. Working within a dedicated squad alongside an Architect (who owns system design and technical integrity) and a Shipper (who owns delivery, quality, and release), you own the build — from specification through implementation.

This is not a traditional developer or product owner role. You are a full-stack product builder who authors specifications, writes code, designs interactions, and iterates rapidly using AI-assisted workflows. You own the "what" and the "how" — translating domain problems into working, shippable software.

Essential Job Functions / Responsibilities

• Product Design and Specification
  • Use AI tools (Kiro, Claude) to rapidly iterate on designs, edge cases, and alternative approaches
  • Own end-to-end product design from problem definition through system behavior and user experience
  • Author clear, testable, implementation-ready specifications using AI-assisted workflows
  • Define APIs, data models, and interaction patterns in partnership with the squad Architect
  • Translate business requirements and domain knowledge into buildable system specifications
• AI-First Building and Implementation
  • Build working software using AI-assisted development workflows as the primary creation method
  • Generate, refine, and implement product and technical specifications using spec-driven development
  • Prototype and validate solutions rapidly before committing to full implementation
  • Push through ambiguity — when requirements are unclear, explore, propose, and build to learn
  • Leverage AI tools as co-developers, not just assistants, to multiply output and quality
• Squad Collaboration
  • Partner daily with the Architect on API design, data modeling, and system architecture decisions
  • Coordinate with the Shipper on acceptance criteria, testability, and release readiness
  • Participate directly in technical design discussions and tradeoff decisions with the full triad
  • Surface blockers, risks, and dependencies to the squad early and proactively
  • Maintain shared context with squad partners through specifications, documentation, and working demos
• Domain Ownership (Fintech Systems)
  • Apply expertise in one or more domains such as:
    • Core Banking including account structures, posting models, settlement processes, and data integrity
    • Digital Banking including account opening, onboarding workflows, KYC and CIP, and user experience design
    • Lending including loan lifecycles, servicing logic, payments, and exception handling
    • Payments and Cards including transaction flows, authorization and settlement, and integration patterns

Qualifications

• 5 plus years in product and/or engineering roles within fintech, banking, or financial services
• Experience working with core banking or digital banking platforms
• Strong understanding of complex, regulated environments and financial workflows
• Proven ability to design and build systems and workflows, not just define requirements
• Track record of shipping working software, not just producing documentation
• Strong hands-on development capability across front-end and/or back-end technologies
• Ability to own implementation end-to-end within a product domain
• Comfort working across the stack as needed to deliver complete features
• Active, hands-on experience with AI-assisted development workflows
• Demonstrated use of AI tools for specification, code generation, and iteration
• Willingness to experiment with tools and continuously improve AI-augmented building practices
• Comfort operating in a spec-first, AI-first development methodology

Core Traits

• High Agency: Takes ownership of outcomes and drives work forward without waiting for permission or heavy process.
• Problem Solver: Thrives in ambiguity. Frames problems clearly, explores solution spaces, and converges on practical approaches quickly.
• Builder Mindset: Measures success by what ships. Prefers building and iterating over planning and discussing.
• Experimenter: Tests ideas quickly using AI tools and iterates based on results.
• Quality Driven: Focuses on correctness, clarity, and long-term maintainability.
• Scale Oriented: Designs with performance, extensibility, and operational realities in mind from the start.
• Ownership: Takes pride in end-to-end delivery. Does not hand off and walk away — stays accountable through production.

Benefits

• Annual Cash Bonus and Equity Options commensurate with the role level and experience
• 100% Remote
• 401(k) plan
• Insurance - Health, Dental and Vision
• Paid Time Off