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Weekend Full Stack Developer Node Js Jobs in New York

Cross River

Full Stack Engineer

Fort Lee, NJ · On-site

$160K - $200K/yr

Architect and build high-performance services in Python and/or Node.js. Design systems for extreme ... Prototype and integrate the most impactful advances into our platform and internal developer ...

Staffingine LLC

Java Full Stack Developer

New York, NY · On-site

$57.50 - $74/hr

Full Stack Development Build user facing interfaces HTML CSS JS Angular React and server side logic ... Deployment DevOps Deploy code to environments using containerization tools like Docker and ...

Judge Group, Inc.

Full stack Developer - V

Edison, NJ · On-site

Full-stack Developer Work Model: Hybrid (2 days/week in-office) Experience Required: 10+ years ... Experience with frameworks such as React.js, Node.js, Express, and Spring. * Knowledge of database ...

Jobsbridge

Node JS Developer

Florham Park, NJ · On-site

$53.75 - $69.25/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Solid understanding of asynchronous programming Experience with production ...

SREYO

MEAN Stack Developer/Lead

Clark, NJ · On-site

We are looking for a talented Full Stack MEAN Developer to join our Engineering team.* At least 3-5 ... JS frameworks (Angular, Node, Ember, React, etc. you can substitute other cool stuff for items on ...

Cross River

Full Stack Engineer

Fort Lee, NJ · On-site

$160K - $200K/yr

Architect and build high-performance services in Python and/or Node.js. Design systems for extreme ... Prototype and integrate the most impactful advances into our platform and internal developer ...

SREYO

MEAN Stack Developer/Lead

Clark, NJ · On-site

We are looking for a talented Full Stack MEAN Developer to join our Engineering team.* At least 3-5 ... JS frameworks (Angular, Node, Ember, React, etc. you can substitute other cool stuff for items on ...

Dizer Corp

.Net Full Stack Developer

Manhattan, NY · On-site

Title : .Net Full Stack Developer Location : NYC, NY(Onsite) Mode of Interview ... IN Person Interview Required Skills · Experience with Next.js, React v16+, TypeScript, HTML5, and ...

E*Pro, Inc.

Java Full Stack Developer

New York, NY · On-site

$57.50 - $74/hr

Job Title: Java Full Stack Developer Job Location: New York, NY Duration: Long Term Contract ... Experience with Core Java, Spring, Hibernate Experience with Angular JS Experience with HTML, CSS ...

The Real Deal

Full Stack Developer

New York, NY · On-site

$110K - $130K/yr

Job Details: We're looking for a Full Stack Developer to help build and scale our digital products ... Enhance and maintain a high-traffic headless WordPress application (Next.js frontend) * Build ...

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Infographic showing various Weekend Full Stack Developer Node Js job openings in New York as of August 2026, with employment types broken down into 2% As Needed, 69% Full Time, 24% Part Time, 4% Contract, and 1% Nights. Highlights an 94% Physical, 1% Hybrid, and 5% Remote job distribution.

Full Stack Engineer

Cross River

Fort Lee, NJ • On-site

$160K - $200K/yr

Full-time

Re-posted 27 days ago

Job description

Who We Are

Cross River builds the infrastructure behind the world's most innovative financial products. Our technology and capital solutions power payments, cards, lending, and digital asset capabilities that move money safely, instantly, and inclusively - trusted by leading fintechs, enterprises, and disruptors across the globe.

Our mission is simple: to build the financial infrastructure that expands access and opportunity for all. Guided by a culture of collaboration, curiosity, and purpose, Cross River has been named one of American Banker's Best Places to Work in Fintech year after year. Whether you're designing code, solving regulatory puzzles, or developing strategy, you'll join a team where innovation and integrity drive everything we do - and where your work helps shape the future of finance.

What We're Looking For

Cross River Bank is seeking a Senior Full Stack Engineer who thrives at the intersection of intelligent systems and polished product experiences. You'll work across the entire stack from designing React interfaces that surface AI capabilities to engineers and end users, to building the Python and Node.js services that power our LLM-based Agentic platform. A key part of this role is hands-on experience with designing, building, and integrating MCP servers that connect our AI agents to internal tools, financial data systems, and third-party APIs. You'll collaborate closely with product, compliance, and cross-functional engineering teams to build financial technology that's fast, secure, and genuinely intelligent.
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.

 

Qualifications:

  • Hands-on production experience with Large Language Models, prompt engineering, RAG workflows, agent frameworks, and LLM evaluation strategies.
  • Experience building and consuming MCP servers.
  • 5+ years of professional software development with a proven record on complex full-stack systems.
  • Experience with modern JavaScript (ES6+), React, state management (Redux, Zustand, or similar) at scale.
  • Hands-on experience architecting on AWS (DynamoDB, S3, RDS, Lambda, and API Gateway). Knowledge of Infrastructure as Code (Terraform) is a plus.
  • Deep understanding of TDD, CI/CD pipelines, and Agile/Scrum leadership.
  • Ability to debug problems across distributed systems and optimize bottlenecks in real-time data flows.
  • Great communicator with the ability to influence technical direction and manage stakeholder expectations.

#LI-JJ1 #LI-Onsite

Salary Range: $160,000.00 - $200,000.00

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