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Contract Java Developer Startup Jobs in Edison, NJ

Georgia IT Inc

Java Developer - Bakersfield NJ

Passaic, NJ

$52.75 - $68.25/hr

Bakersfield NJ Position Type: Contract (w2 or 1099) only US Citizen, Green Card, TN, GC EAD and H4 EAD only No Third-party agencies corp to corp. We are looking for a Java developer with API ...

Stem Xpert

Java developer

New York, NY

$55.75 - $72.25/hr

Java developer New York, NY 12 months contract Very strong java programming skills WEB Spring MVC (or struts), JSP, HTML/DHTML, Ajax, Javascript, JSTL, JSON, Prototype. Server Java, J2EE, Spring-Core ...

krg technology inc

"Java Developer"

New York, NY

$55.75 - $72.25/hr

Java Developer Location : New York city, NY Duration ... Contract - To understand client requirements and propose solution pertaining to respective domain ...

Diverse Lynx

Java Developer

Jersey City, NJ · On-site

$55.75 - $72.25/hr

Diverse Lynx is a company seeking a Java Developer to design, develop, and maintain Java-based ... contracts) • REST APIs, JSON, OpenAPI / Swagger • Kafka producer, consumer, partitioning • ...

JConnect Infotech

Senior Java Developer

Jersey City, NJ

$59.75 - $76.25/hr

Senior Java Developer Location: Jersey City, NJ Duration: Full Time Senior Java Developer - Cloud ... UML diagrams (Sequence, Class, Component), API contracts Roles & Responsibilities * Strong ...

Syntricate Technologies

Sr. Java Developer

Parsippany, NJ

$57.50 - $73.50/hr

Contract Minimum Qualifications: Experience with Java Programming, J2EE Web Development and SQL Language Experience with Spring Framework, Spring Boot, JPA and Javascript Experience with GIT, Agile ...

360 IT Professionals

Java Developer

New York, NY

$55.75 - $72.25/hr

We have more than 30 IT Staffing Services contracts across USA and working closely with Fortune 500 ... Multithreading, Java, object oriented programming and recent financial experience Requirement:

Cygnus Professionals, Inc.

Java Developer

Warren, NJ

$53 - $68.50/hr

Warren NJ Duration: 6+ Months Contract Interview: Face To Face After Phone Must Have: Experience with MQ Series and JMS 7+ years' experience as Senior System Analyst/Developer with J2EE and Java ...

Futran Tech Solutions Pvt. Ltd.

Java Developer

Passaic, NJ

$52.75 - $68.25/hr

Java Developer Location: Need profiles who are local to New Jersey, PA or Virginia and who can come ... Contract We are looking for a candidate with hardcore Java (multi-threading mainly), Spring Boot ...

Sarian, Inc.

Sr Java Developer (Apache Camel)

Newark, NJ · On-site

$59.75 - $76.25/hr

Newark, NJ (Hybrid 2days onsite) Contract w2 Job Skills & Qualifications: * Senior Java developer with 5+ years of experience * Strong working knowledge of Oracle, MQ Series, JavaScript frameworks ...

SARIAN Co

Sr Java Developer (Apache Camel)

Newark, NJ · Hybrid

$59.75 - $76.25/hr

Newark, NJ (Hybrid 2days onsite) Contract w2 Job Skills & Qualifications: * Senior Java developer with 5+ years of experience * Strong working knowledge of Oracle, MQ Series, JavaScript frameworks ...

Genesis10

Senior Java Developer

Jersey City, NJ

$78.03 - $86.03/hr

This is a 12+ month contract opportunity. This role is responsible for designing, developing, and maintaining integration solutions that ensure seamless connectivity between enterprise systems. The ...

RIT Solutions

Senior java developer

Summit, NJ

$60.75 - $77.50/hr

Senior Java Developer Location: Charlotte, NC Onsite: 3 days a week Interview process: screening then final video interview Contract: 6-24 months to perm Must have: Core Java, Angular or React (not ...

Diverse Lynx

JAVA DEVELOPER

Jersey City, NJ · On-site

$53.25 - $69/hr

Java Job Type: Contract Job Location: Jersey City New Jersey This role is sourcing for 2 candidates This position is a developer role in the Capital Markets Credit Risk Technology team based in ...

Diverse Lynx LLC

JAVA DEVELOPER

Jersey City, NJ

$53.25 - $69/hr

Java Job Type: Contract Job Location: Jersey City New Jersey This role is sourcing for 2 candidates This position is a developer role in the Capital Markets Credit Risk Technology team based in ...

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All JobsContract Java Developer Startup JobsContract Java Developer Startup Jobs in Edison, NJ

Contract Java Developer Startup information

See Edison, NJ salary details

$16

$58

$80

How much do contract java developer startup jobs pay per hour?

As of Jun 21, 2026, the average hourly pay for contract java developer startup in Edison, NJ is $58.70, according to ZipRecruiter salary data. Most workers in this role earn between $50.77 and $65.72 per hour, depending on experience, location, and employer.

What are some common challenges Contract Java Developers face when working at startups, and how can they prepare for them?

Contract Java Developers at startups often face fast-paced environments with shifting priorities and limited documentation. Adapting quickly to new codebases, collaborating with small, cross-functional teams, and managing ambiguity are frequent challenges. To prepare, developers should brush up on agile methodologies, familiarize themselves with popular Java frameworks, and be proactive in communicating with stakeholders. Demonstrating flexibility and strong problem-solving skills will help ensure a successful contract period.

What are the key skills and qualifications needed to thrive as a Contract Java Developer at a startup, and why are they important?

To excel as a Contract Java Developer in a startup environment, you need strong proficiency in Java programming, object-oriented design, and a solid understanding of software development lifecycles, usually supported by relevant experience or a computer science degree. Familiarity with frameworks like Spring Boot, version control systems (e.g., Git), build tools (e.g., Maven or Gradle), and cloud platforms is often required. Outstanding problem-solving ability, adaptability, and clear communication skills help you collaborate effectively and respond to rapidly changing project needs. These skills and qualities enable you to deliver robust, scalable solutions quickly and efficiently, which is critical in the fast-paced, resource-constrained startup setting.

What does a Contract Java Developer do at a startup?

A Contract Java Developer at a startup is responsible for designing, developing, and maintaining Java-based applications on a temporary basis, usually to help accelerate specific projects or fill short-term talent gaps. They often work on building scalable backend systems, integrating APIs, and ensuring the product can rapidly evolve as the startup grows. Their work may also involve troubleshooting, optimizing performance, and collaborating closely with other developers, designers, and product managers. Because startups are fast-paced environments, contract developers are expected to adapt quickly and deliver results within tight deadlines.

What is the difference between Contract Java Developer Startup vs Contract Java Developer Enterprise?

AspectContract Java Developer StartupContract Java Developer Enterprise
CredentialsJava certification, relevant experienceJava certification, relevant experience
Work EnvironmentFast-paced, innovative, small teamsStructured, larger teams, formal processes
Employer & IndustryStartups, tech, e-commerceLarge corporations, finance, healthcare
Search & Comparison IntentYesYes

The main difference between a Contract Java Developer Startup and a Contract Java Developer Enterprise lies in the work environment and company size. Startups typically offer a dynamic, fast-paced setting with smaller teams, while enterprises provide a more structured environment with larger teams and formal processes. Both roles require similar credentials and are sought after by companies in different industry sectors.

What are popular job titles related to Contract Java Developer Startup jobs in Edison, NJ? For Contract Java Developer Startup jobs in Edison, NJ, the most frequently searched job titles are:
What job categories do people searching Contract Java Developer Startup jobs in Edison, NJ look for? The top searched job categories for Contract Java Developer Startup jobs in Edison, NJ are:
Contract Java Developer Startup jobs near you

Java Developer

Shree Narayani Networking Solutions LLC

Piscataway, NJ

$70 - $75/hr

Other

Posted 3 days ago

Job description

 
Job Title - Java Developer(Java 20+) - (client uses Java 25)
Location - Piscataway, NJ (Hybrid – 3 days onsite)
Duration - 12+ Months
Rate: 60-65/hr. on W2 or $70-75/hr. on C2C


Interview : Must interview 2 phone screens and 1 in-person interview

Non-Negotiable Skills & Experience (Priority Order)
  • Identity Provider (IDP) Integration — Ping
  • Hands-on experience with Java 20+ (client uses Java 25)
  • Hands-on experience integrating PingFederate / PingAccess for SAML 2.0 and OIDC flows
  • Token validation, scopes, claims mapping, and federated identity configuration.
  • AWS API Gateway + Custom Lambda Authorizers
  • AWS Lambda & Serverless Architecture experience
  • Spring Boot Microservices Development
  • Terraform Infrastructure-as-Code (IaC) experience
  • AWS Cloud Experience (Lambda, API Gateway, ECS/Fargate, IAM, DynamoDB, S3, VPC)
  • REST API Development & Microservices Architecture
  • Docker / Containerized Deployments
Preferred / Bonus Skills
  • Boomi Integration Platform
  • OpenAPI / Contract-First API Design
  • AWS CI/CD (CodePipeline, CodeBuild)
  • DynamoDB Data Modeling

The ideal candidate is someone who can build Java/Spring Boot applications, secure them using Ping/OAuth/JWT, deploy them on AWS using Lambda/API Gateway/ECS, and automate the infrastructure using Terraform.
Summary: The role focuses on building and maintaining enterprise integrations across identity, API authorization, dynamic OAuth clients, dynamic scoping, microservices, and infrastructure-as-code within AWS and Boomi integration platforms.
Scope of Work
The engineer will contribute to enterprise integration projects spanning AWS serverless, API development, Ping-based authorization infrastructure, and IaC automation.
Required Skills & Experience
Identity Provider (IDP) Integration — Ping
Hands-on experience with Java 20+ (client uses Java 25)
Hands-on experience integrating PingFederate / PingAccess for SAML 2.0 and OIDC flows
Token validation, scopes, claims mapping, and federated identity configuration.
Custom Lambda Authorizer
Design and implementation of AWS API Gateway custom Lambda authorizers (request and token-based)
JWT/OIDC token validation against Ping, policy generation, and caching strategies
Spring Boot
Production experience building Spring Boot microservices (REST APIs, service layers, externalized configuration)
Familiarity with Spring, SpringBoot, and containerized deployments (Docker/ECS Fargate)
AWS Expertise
Strong working knowledge of core AWS services: Lambda, API Gateway, ECS/Fargate, DynamoDB, S3, CloudWatch, IAM, VPC
Serverless architecture patterns and event-driven design
Networking fundamentals (VPC endpoints, security groups, private subnets)
Boomi Integration Platform knowledge
Terraform
Infrastructure-as-Code using Terraform (modules, state management, workspaces)
Provisioning and managing AWS resources in multi-environment pipelines
Agentic IDE & AI-Assisted Development
Comfort working with AI-powered development tools (Kiro, Claude Code, GitHub Copilot agentic coding assistants)
Ability to leverage AI pair-programming for code generation, review, and iteration within Kiro or similar IDEs
Nice to Have
Experience with Deno / TypeScript Lambda functions
Familiarity with OpenAPI specifications and contract-first API design
CI/CD with AWS CodePipeline / CodeBuild
DynamoDB data modeling and access patterns
microservices migration experience


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