[Hiring] AI Product Builder - Payments @Nymbus, Inc.

Role Description

Nymbus is building the next generation of fintech platforms and that requires a new kind of delivery leader. This role is the quality and release backbone of the squad — the person who ensures what gets built actually reaches production reliably, correctly, and on cadence. You will own delivery, validation, and operational readiness using AI-first methodology, working hand-in-hand with your Builder and Architect to ship outcomes end-to-end.

The AI Product Builder — Payments will help define and build the next generation of payment capabilities at Nymbus, including support for multiple payment rails, networks, message standards, settlement models, and integration patterns.

At the heart of this role is a straightforward but demanding mandate:

• Help us build sophisticated, extensible payment capabilities that financial institutions can depend on.
• Own the transformation of complex payment-domain problems into working, production-ready software.
• Design system behavior, author implementation-ready specifications, shape APIs and data models, prototype solutions, and participate directly in implementation using AI-assisted development workflows.

You must understand how money moves—not only at the feature or requirements level, but at the system, message, transaction, settlement, and operational levels.

Qualifications

• Seven or more years of experience building, designing, operating, or leading sophisticated payment systems within fintech, banking, financial services, payment networks, or payment technology.
• Demonstrated experience with payment switches, gateways, orchestration platforms, payment engines, processors, core-payment services, or similarly complex transaction-processing systems.
• Deep understanding of payment lifecycles, including initiation, authorization, clearing, settlement, posting, reconciliation, returns, reversals, rejects, and exception handling.
• Substantial experience with several of the following: ISO 8583, ISO 20022, ACH, wires, RTP, FedNow, payment APIs, card-network processing, settlement, and liquidity management.
• Ability to explain not only how a payment rail works, but how its rules and behavior should be represented in software.
• Experience shipping payment capabilities into production and supporting them through real operational conditions.
• Strong understanding of the correctness, control, security, auditability, and resilience expectations associated with regulated financial systems.

Requirements

• Ability to reason deeply about software architecture, service interactions, data models, APIs, event flows, transaction boundaries, and distributed-system failure modes.
• Ability to read code, API definitions, database schemas, logs, traces, and payment messages and use them to diagnose system behavior.
• Strong understanding of REST APIs, asynchronous messaging, event-driven systems, data persistence, versioning, authentication, authorization, and integration patterns.
• Working knowledge of distributed-system concepts such as idempotency, ordering, retries, eventual consistency, concurrency, duplicate processing, timeouts, and compensating transactions.
• Proven ability to create system specifications that are technically implementable and operationally complete.
• Hands-on production software-development experience is strongly preferred.
• Active, hands-on experience using AI-assisted development tools for product design, specification, prototyping, coding, testing, analysis, or technical documentation.

Benefits

• Annual cash bonus and equity options commensurate with role level and experience
• 100% remote work environment
• 401(k) plan
• Health, dental, and vision insurance
• Paid time off