Senior Software Engineer AI Automation

Byzfunder
United StatesFull-timePosted Sep 16, 2026

About the role

ByzFunder is at an inflection point. We're not upgrading legacy software — we're replacing it entirely with a purpose-built, AI-native lending platform designed to underwrite, fund, and service merchant cash advances faster and smarter than any system in the market today.

We're building a team of Senior Software Engineers to help us get there. You'll work alongside other engineers, product owners, and operations stakeholders to design, build, and ship the systems that power our lending lifecycle — from deal origination and underwriting through funding and portfolio management.

This is a collaborative, high-impact role on a greenfield platform. You'll contribute meaningfully to architecture discussions, own features end-to-end, and work in an environment that embraces AI-assisted development as a core part of how the team operates.

What You'll Build & Own

▸ Build and ship features across the MCA lending lifecycle — including application intake, document processing, underwriting, offer generation, funding workflows, and portfolio management.

▸ Contribute to the development of AI agent workflows that automate key business processes, working within an established team framework and collaborating on agent communication patterns, tool integrations, and human-in-the-loop checkpoints.

▸ Integrate LLM capabilities and MCP (Model Context Protocol) servers into ByzFunder's platform, giving agents structured access to internal APIs, databases, and third-party data providers.

▸ Work within a Spec-Driven Development (SDD) approach — taking well-defined specifications and translating them into reliable, tested, production-ready code.

▸ Use AI-assisted development tools (Cursor, Claude Code) as a standard part of your daily workflow — generating, refining, and validating code with AI assistance to move faster without sacrificing quality.

▸ Collaborate with product owners, operations, risk, and compliance stakeholders to understand requirements and deliver solutions that reflect real business needs.

▸ Participate in code reviews, contribute to team engineering standards, and support a culture of quality, learning, and continuous improvement.

Required Qualifications

▸ 7+ years of professional software engineering experience with strong full-stack capability.

▸ Production experience with React / Next.js and Node.js (Nest.js preferred).

▸ Strong experience with relational databases (e.g., SQL Server, PostgreSQL, MySQL, AWS RDS) and an ORM (Prisma preferred).

▸ Experience designing and building REST APIs.

▸ Experience working with asynchronous processing (queues, background jobs, or event-driven patterns).

▸ Experience deploying and operating applications in a cloud environment (AWS preferred).

▸ Solid understanding of application security fundamentals (authentication, authorization, secrets management, audit logging).

▸ Hands-on experience using AI-assisted development tools (e.g., Cursor, Claude Code, GitHub Copilot) in day-to-day coding, including generating, refining, and validating code.

▸ Ability to independently take features from requirements to production.

Bonus Qualifications

▸ Experience integrating LLM APIs (OpenAI, Anthropic, etc.) into applications.

▸ Familiarity with prompt design, structured outputs, or retrieval-augmented generation (RAG).

▸ Experience with message queues (SQS, Kafka, RabbitMQ) or workflow/orchestration systems.

▸ Experience in fintech, lending, or other regulated environments.

▸ Familiarity with vector databases (pgvector, Pinecone).

▸ Exposure to compliance frameworks (SOC 2, PCI-DSS, etc.).

Why ByzFunder

🏗 Greenfield Architecture

No legacy baggage. The team is building on a modern, greenfield platform with real ownership over what gets shipped.

⚡ Real Urgency, Real Scale

ByzFunder funds hundreds of deals monthly. What you build runs on live transactions immediately.

🤝 Collaborative Leadership

Work directly with founders and operations leaders who understand the business deeply and are committed to moving fast.

🚀 AI-First Culture

AI-assisted development isn't an experiment here — it's how the team works every day, and everyone is expected to embrace it.

Responsibilities

  • Build and ship features across the MCA lending lifecycle.
  • Contribute to the development of AI agent workflows.
  • Integrate LLM capabilities and MCP servers into the platform.
  • Work within a Spec-Driven Development approach.
  • Use AI-assisted development tools in daily workflow.
  • Collaborate with stakeholders to understand requirements.
  • Participate in code reviews and support a culture of quality.

Qualifications

  • 7+ years of professional software engineering experience.
  • Production experience with React / Next.js and Node.js.
  • Strong experience with relational databases and an ORM.
  • Experience designing and building REST APIs.
  • Experience with asynchronous processing.
  • Experience deploying applications in a cloud environment.
  • Solid understanding of application security fundamentals.
  • Hands-on experience using AI-assisted development tools.

Benefits

  • Greenfield Architecture with real ownership.
  • Opportunity to work on live transactions immediately.
  • Collaborative leadership with direct access to founders.
  • AI-first culture with daily use of AI-assisted development.

Skills mentioned

ReactNext.jsNode.jsNestJSSQLREST APIsEvent-Driven ArchitectureAWSApplication SecurityGenerative AI

About Byzfunder

Byzfunder NY LLC is a premier lending institution for small to medium-size businesses. As an alternative financing leader, ByzFunder assists in developing programs that fit small business needs in a very timely fashion. With over 20 years of underwriting experience, our innovative approach to financing has helped thousands of companies achieve their short-term as well as long-term goals. We have simplified the process to provide most applicants with answers in under 3 hours and funding within 24 hours.

Financial Services51-200 employeesNew York, New York