Software Engineer (Senior)

Our client, a fast-growing AI FinTech company, is hiring a Senior Software Engineer to join their team in New York. The successful candidate will take end-to-end ownership of a core area of the finance platform, working directly with accountants, controllers, CFOs and customers to understand complex financial workflows and translate them into reliable, production-ready software.

Responsibilities

• Design and develop trusted AI agents for finance and audit workflows, with robust verification, guardrails, observability and evaluation built in.

• Engineer context systems that enable AI agents to reason across transactions, ledgers, contracts, policies and historical financial decisions.

• Build data infrastructure to ingest, normalize, reconcile, and connect information across ERPs, banking, payroll, billing, CRM and other enterprise platforms.

• Develop AI agents capable of explaining their reasoning, recognizing uncertainty, escalating exceptions and improving through human feedback.

• Build reliable, long-running AI workflows that operate safely across complex, stateful and interconnected enterprise systems.

• Create secure, idempotent and auditable mechanisms for writing AI-generated actions back into financial systems of record.

• Take end-to-end ownership across the LLM stack, backend services, infrastructure, data and product experience.

• Partner directly with finance professionals to understand complex manual processes and transform them into scalable, automated software.

• Leverage modern AI coding agents and development tools to accelerate engineering, testing and delivery.

• Own production reliability, diagnosing issues to root cause and continuously improving system performance, resilience and quality.

Skillset

• Minimum of 5 years of professional software engineering experience, primarily across backend, infrastructure, platform or distributed systems engineering.

• Strong backend development skills in Python, Go, Java, Rust or a similar modern language, with the ability to ramp quickly in Python.

• Proven experience designing and building complex production systems, such as distributed pipelines, transactional or ledger systems, integration platforms or workflow engines.

• Strong knowledge of distributed systems, APIs, data pipelines, reliability, observability and production infrastructure.

• Experience building production LLM applications or AI agents, ideally including evaluation, verification, guardrails or AI observability.

• Experience integrating with enterprise systems and complex data sources, including financial platforms, data warehouses or reconciliation pipelines.

• Experience within fintech, accounting, ERP, payments, banking, treasury, audit or compliance software is highly desirable.

• Experience working in an early-stage startup environment and directly with customers or domain experts to turn complex business processes into scalable software is highly valued.

Benefits

• Salary: $180k – $250k DOE.

• Equity:

• Comprehensive medical, dental, and vision insurance.

• 401(k) match.