Full Stack Engineer

Jobverse.io; Fort Lee (NJ); On-site; USD 140,000 - 190,000; Full time

Job summary

Jobverse.io seeks a Senior Full Stack Engineer to design and build an LLM-based Agentic platform with Python and Node.js services, MCP servers, and React interfaces. You will collaborate across product, compliance, and engineering teams to deliver secure, scalable fintech solutions.

The role emphasizes end-to-end architecture, performance, regulatory compliance, and leadership in engineering standards. Fort Lee, NJ offers a dynamic enviroment with opportunities to influence platform development.

Responsibilities

• Design, build, and continuously improve our LLM-based Agentic platform.
• Own end-to-end architecture decisions from model orchestration and prompt design to retrieval pipelines, tool-calling patterns, and evaluation frameworks
• Architect and build high-performance services in Python and/or Node.js.
• Design systems for extreme speed, reliability, and real-time data processing under high traffic conditions
• Design and maintain MCP servers that give AI agents structured, secure access to internal banking systems, external APIs, databases, and developer tools
• Build intuitive React interfaces that expose AI capabilities like chat interfaces, agentic dashboards, real-time streaming UIs, and internal tooling
• Partner with product managers, business stakeholders, compliance, and engineering teams to translate vision into scalable technical requirements and roadmaps
• Design and ensure the platform meets enterprise-grade security and financial regulatory standards
• Actively upskill fellow engineers on full-stack best practices, LLM integration patterns, and production of AI systems.
• Evaluate emerging models, frameworks, and tooling. Prototype and integrate the most impactful advances into our platform and internal developer productivity tooling

Skills

Python

Node.js

React

LLM integration

Distributed systems

Security

Job description

Cross River builds financial infrastructure and technology solutions that power payments, cards, lending, and digital asset capabilities. The company is seeking a Senior Full Stack Engineer to design and build an LLM-based Agentic platform, including Python and Node.js services, MCP servers, and React interfaces. The role also involves collaborating across product, compliance, and engineering teams to deliver secure, scalable, regulatory-compliant financial technology.

Responsibilities

• Design, build, and continuously improve our LLM-based Agentic platform. Own end-to-end architecture decisions from model orchestration and prompt design to retrieval pipelines, tool-calling patterns, and evaluation frameworks
• Architect and build high-performance services in Python and/or Node.js. Design systems for extreme speed, reliability, and real-time data processing under high traffic conditions
• Design and maintain MCP servers that give AI agents structured, secure access to internal banking systems, external APIs, databases, and developer tools making Agentic platform composable and extensible by design
• Build intuitive React interfaces that expose AI capabilities like chat interfaces, agentic dashboards, real-time streaming UIs, and internal tooling. Own state management patterns and component architecture at scale
• Partner with product managers, business stakeholders, compliance, and engineering teams to translate vision into scalable technical requirements and roadmaps
• Design and ensure the platform meets enterprise-grade security and financial regulatory standards
• Actively upskill fellow engineers on full-stack best practices, LLM integration patterns, and production of AI systems. Help define coding standards and contribute to a culture of engineering excellence
• Evaluate emerging models, frameworks, and tooling. Prototype and integrate the most impactful advances into our platform and internal developer productivity tooling