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Junior Full Stack Engineer Jobs in Wayne, 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 ...

Willis Re

Full Stack Engineer

New York, NY · On-site

$200K - $220K/yr

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

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 ...

IntraEdge

Software Java Full Stack Engineer II

Manhattan, NY · On-site

$57.50 - $74.25/hr

Looking to hire Technical Lead/Java Full Stack Engineer who has strong front end (ReactJS) and ... Strong background in Agile process and mentoring junior members of the team is critical. Should be ...

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 ...

IntraEdge

Software Java Full Stack Engineer II

Manhattan, NY · On-site

$57.50 - $74.25/hr

Looking to hire Technical Lead/Java Full Stack Engineer who has strong front end (ReactJS) and ... Strong background in Agile process and mentoring junior members of the team is critical. Should be ...

Understood

Senior Full-Stack Engineer

New York, NY · On-site

... Senior Full-Stack Engineer, reporting to an Engineering Manager, to work across our frontend ... Participate in code reviews, mentor junior engineers, and contribute to continuously improving ...

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 · On-site

$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 ...

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All JobsFull Stack Engineer JobsJunior Full Stack Engineer JobsJunior Full Stack Engineer Jobs in Wayne, NJ

Junior Full Stack Engineer information

See Wayne, NJ salary details

$46.1K

$93.8K

$140.8K

How much do junior full stack engineer jobs pay per year?

As of Aug 20, 2026, the average yearly pay for junior full stack engineer in Wayne, NJ is $93,764.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,400.00 and $94,700.00 per year, depending on experience, location, and employer.

What is a junior full stack engineer?

A Junior Full Stack Engineer is an entry-level software developer who works on both the front-end and back-end of web applications. They are typically responsible for building, testing, and maintaining features across the entire technology stack, often under the supervision of more experienced engineers. Juniors work with languages and frameworks such as JavaScript, HTML, CSS, Node.js, and databases like SQL or MongoDB. While they may not have deep expertise yet, they are expected to learn quickly, collaborate with team members, and gradually take on more complex tasks.

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

To thrive as a Junior Full Stack Engineer, you need a solid understanding of front-end and back-end development concepts, programming languages like JavaScript, HTML, CSS, and familiarity with frameworks such as React and Node.js, often supported by a bachelor's degree in computer science or related experience. Experience using version control systems like Git, basic database management (SQL/NoSQL), and cloud platforms is typically required. Strong problem-solving, teamwork, and communication skills help you collaborate effectively and adapt to fast-changing project needs. These abilities are essential for building reliable, scalable web applications and contributing meaningfully to development teams.

How does a junior full stack engineer typically collaborate with other team members on a project?

As a Junior Full Stack Engineer, you’ll regularly work alongside front-end and back-end developers, designers, and product managers to deliver features and resolve issues. Collaboration often includes participating in daily stand-ups, code reviews, and sprint planning sessions. You’ll be expected to communicate progress and challenges clearly, seek guidance when needed, and contribute to shared code repositories using version control tools like Git. This collaborative environment helps you learn quickly and build strong relationships within a multidisciplinary team.

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

AspectJunior Full Stack EngineerJunior Front End Developer
Required SkillsProficiency in both front-end and back-end technologies (HTML, CSS, JavaScript, server-side languages, databases)Strong skills in HTML, CSS, JavaScript, and front-end frameworks (React, Angular, Vue)
Work EnvironmentWorks on both client-side and server-side development, often in full project cyclesFocuses primarily on user interface and user experience development
Common UsageUsed in startups and small to medium companies requiring versatile developersCommon in companies emphasizing UI/UX and front-end design

The main difference is that a Junior Full Stack Engineer handles both front-end and back-end tasks, while a Junior Front End Developer specializes in user interface development. The full stack role requires knowledge of server-side technologies, whereas the front-end role focuses on creating engaging user experiences.

What cities near Wayne, NJ are hiring for Junior Full Stack Engineer jobs?

Cities near Wayne, NJ with the most Junior Full Stack Engineer job openings:

Junior Full Stack Engineer jobs near you

Full Stack Engineer

Cross River

Fort Lee, NJ • On-site

$160K - $200K/yr

Full-time

Re-posted 21 hours 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
Cross River is an Equal Opportunity Employer. Cross River does not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status or any other basis covered by appropriate law. All employment is decided on the basis of qualifications, merit, and business need.
By submitting your application, you give Cross River permission to email, call, or text you using the contact details provided. We will only contact you with job related information.

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