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Full Stack Engineer Jobs in Union City, NJ (NOW HIRING)

Cross River

Full Stack Engineer

Fort Lee, NJ · On-site

$160K - $200K/yr

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 ...

Pensar

Full Stack Engineer

New York, NY · On-site

  • Medical

  • Dental

  • Vision

Pensar is looking for a talented Full Stack Engineer to join our team and help build the future of offensive security software. You'll work closely with security researchers, product managers, and ...

talentpluto

Senior Full Stack Engineer

Manhattan, NY · On-site

$210 - $260/hr

The Opportunity As a Senior Full Stack Engineer, you will work across the stack, spanning frontend, backend, and the data pipelines and agentic/AI workflows at the core of the product. This is a ...

Zenlaw

Full-Stack Engineer (Remote)

New York, NY · On-site +1

As a Zenlaw Full-Stack Engineer you will: * Develop new features working with cross-functional squads, within a distributed team * Use creative thinking - we are building most of our features from ...

Cross River

Full Stack Engineer

Fort Lee, NJ · On-site

The Full Stack Engineer will lead the design and architecture of their LLM-based platform, collaborating with product managers and stakeholders to translate business vision into scalable technical ...

iCapital Network

Full Stack Engineer

New York, NY · On-site

The Full Stack Engineer at iCapital Network will work end-to-end on new Features, Enhancements, and Defect Resolution on the core iCapital Platform. You will work closely with our Product Management ...

Cross River

Full Stack Engineer

Fort Lee, NJ · On-site

$160K - $200K/yr

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 ...

Willis Re

Full Stack Engineer

New York, NY · On-site

$200K - $220K/yr

  • Medical

  • Retirement

  • PTO

Full Stack Engineer Willis Re is building its global technology estate from the ground up, unencumbered by legacy and designed around data, analytics and modern cloud platforms. We are looking for a ...

Brooksource

Sr Full Stack Engineer

Summit, NJ · On-site

$75 - $80/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Sr Full Stack Engineer Summit, NJ Hybrid Role Compensation: $75 - $80 per hour ABOUT THE ROLE Our client, a Fortune 500 Consumer Packaged Goods (CPG) company, is seeking a Senior Full Stack Engineer ...

Clerkie

Full-Stack Engineer

New York, NY · Remote

$90/hr

About the role We're looking for a Full-Stack engineer who wants to build, own, and ship end-to-end product experiences in a fast-moving environment. This role is ideal for someone who is comfortable ...

iCapital Network

Full Stack Engineer

New York, NY · On-site

The Full Stack Engineer at iCapital Network will work end-to-end on new Features, Enhancements, and Defect Resolution on the core iCapital Platform. You will work closely with our Product Management ...

Mintex Technology

Founding Full-Stack Engineer

New York, NY · On-site

$120K - $180K/yr

Founding Full-Stack Engineer Job Duration: Full-time Job Location: New York City, NY & San Francsico, CA Work Arrangement: Onsite About the Role * We're looking for a Founding Engineer to build and ...

Aquent

Full Stack Engineer

Manhattan, NY · On-site +1

$45 - $55/hr

  • Medical

  • Retirement

We are seeking a talented engineer to join a dynamic team focused on delivering cutting-edge video ... Build and maintain full stack features for a creator-facing platform, serving hundreds of thousands ...

Altis

Full-Stack Engineer

New York, NY · On-site

$120K - $240K/yr

We're looking for a full-stack AI engineer who ships production-grade intelligence platforms at 5-10× velocity. In this role, you will: * Own end-to-end full-stack features across React/Next.js ...

Cypress HCM

Sr. Full Stack Engineer

New York, NY

$175K - $200K/yr

Sr. Software Engineer We're looking for a strong full stack engineer to join a collaborative, fast-moving development team focused on building high-quality, user-centric web applications. This is an ...

Junior

Full Stack Engineer

Manhattan, NY · On-site

They are looking for a Full Stack Engineer to join their team, who will have the opportunity to work on groundbreaking projects and contribute to product decisions while shaping the engineering ...

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Showing results 21-40

All JobsFull Stack Engineer JobsFull Stack Engineer Jobs in Union City, NJ

Full Stack Engineer information

See Union City, NJ salary details

$48.6K

$147.3K

$208.2K

How much do full stack engineer jobs pay per year?

As of Aug 17, 2026, the average yearly pay for full stack engineer in Union City, NJ is $147,298.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,300.00 and $172,700.00 per year, depending on experience, location, and employer.

What is a full stack engineer?

A Full Stack Engineer is a software developer who is skilled in both front-end and back-end development. They are capable of designing, building, and maintaining the entire technology stack of a web application, including user interfaces, servers, databases, and APIs. Full Stack Engineers often work with multiple programming languages and frameworks, allowing them to handle a wide variety of technical tasks. Their versatility makes them valuable team members in many tech projects.

What are the key skills and qualifications needed to thrive as a full stack engineer?

To thrive as a Full Stack Engineer, you need proficiency in both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Python, or Java), along with a solid understanding of web application architecture and databases. Familiarity with frameworks like React, Angular, Node.js, and tools such as Git, Docker, and CI/CD systems, as well as relevant certifications, are often required. Strong problem-solving skills, effective communication, and adaptability help you collaborate across teams and manage complex projects. These skills are crucial for building, deploying, and maintaining robust, scalable applications that meet business needs.

How do full stack engineers typically collaborate with UX/UI designers and backend specialists on a project?

Full Stack Engineers frequently act as a bridge between UX/UI designers and backend specialists, ensuring seamless integration of front-end interfaces with server-side logic. They participate in cross-functional meetings, translate design requirements into functional features, and address technical feasibility from both ends. This collaboration often involves code reviews, regular communication to clarify requirements, and agile workflows to ensure that user experience and system performance are both prioritized throughout the development process.

What is the difference between Full Stack Engineer vs Front End Developer?

AspectFull Stack EngineerFront End Developer
Required SkillsProficiency in both front-end and back-end technologies, including HTML, CSS, JavaScript, server-side languages, and databases.Specializes in client-side technologies like HTML, CSS, JavaScript, and frameworks such as React or Angular.
Work EnvironmentWorks on both server and client-side development, often handling entire project stacks.Focuses primarily on creating and optimizing user interfaces and user experience.
Common UsageUsed in full project development, especially in startups and small teams requiring versatile developers.Primarily employed in UI/UX design, front-end frameworks, and client-side optimization.

While both roles require strong web development skills, a Full Stack Engineer handles both front-end and back-end tasks, providing a comprehensive approach to web development. A Front End Developer specializes in creating engaging and responsive user interfaces, focusing on the client side of applications.

Is full stack engineering still in demand?

Full stack engineering remains in high demand due to the need for versatile developers skilled in both front-end and back-end technologies. Employers seek professionals proficient in frameworks like React, Node.js, and cloud platforms, with strong problem-solving and collaboration skills. The role often requires continuous learning to keep up with evolving tools and programming languages.
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Full Stack Engineer jobs near you
Infographic showing various Full Stack Engineer job openings in Union City, NJ as of August 2026, with employment types broken down into 89% Full Time, 6% Part Time, and 5% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $147,298 per year, or $70.8 per hour.

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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