com/) is not just a leader in fintech; we are a community of innovators passionate about reimagining banking. Our modern core platform and cloud based technology serve as the backbone for financial institutions eager to modernize and excel. 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. WORK ENVIRONMENT: We are a remote first company, with occasional travel required for team collaboration or client engagement.

POSITION SUMMARY: 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.

You operate with an AI-first, spec-first mindset, leveraging tools like Kiro and Claude to accelerate every phase of product creation. 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. THE SQUAD TRIAD MODEL You operate as one-third of a high-autonomy squad: Builder (This Role): Owns product intent, specification, and implementation. You are the primary creator — designing system behavior, authoring specs, and iterating with AI tools to produce working software.

Architect (Your Partner): Owns system design, technical integrity, and cross-squad consistency. The Architect ensures your solutions are scalable, maintainable, and aligned with platform architecture. You collaborate daily on data models, API contracts, and integration patterns.

Shipper (Your Partner): Owns delivery, quality assurance, release management, and operational readiness. The Shipper ensures what you build meets quality standards, passes validation, and reaches production reliably. You collaborate on acceptance criteria, test coverage, and deployment strategy.

Together, the triad owns outcomes end-to-end — from problem definition through production operation.

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

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 co