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Java Software Engineer Contract Jobs in Oakville, CA

GCX Corporation

Software Engineer

Petaluma, CA · On-site

Extend and maintain an existing Java/Jersey-based fleet management portal * Support and evolve a ... software engineering experience * Must reside within a 50-mile radius of Petaluma, CA * Must be ...

GCX

Software Engineer

Petaluma, CA · On-site

$125K - $150K/yr

Extend and maintain an existing Java/Jersey-based fleet management portal * Support and evolve a ... software engineering experience * Must reside within a 50-mile radius of Petaluma, CA * Must be ...

GCX Healthcare Solutions

Software Engineer

Petaluma, CA · Remote

$125K - $150K/hr

Extend and maintain an existing Java/Jersey-based fleet management portal * Support and evolve a ... software engineering experience * Must reside within a 50-mile radius of Petaluma, CA * Must be ...

Jobsbridge

Senior Java Developer

Santa Rosa, CA · On-site

$62.50 - $79.75/hr

Job Specifications Four year college degree in Computer Science or a related field, or equivalent full-time work experience 5+ years of recent JAVA application software development experience.

Chipton Ross

Software Engineer

Santa Rosa, CA · On-site

$55/hr

Job #218999 Chipton-Ross is seeking a Software Engineer for a contract opportunity in Santa Rosa, CA. BASIC QUALIFICATIONS (REQUIRED SKILLS/EXPERIENCE) * 1-2 years of experience with one or more of ...

Harnham

Software Engineer AI

Sonoma, CA · On-site

$190K - $240K/yr

Software Engineer, AI - Bay Area (Hybrid) Salary Range: $190,000 - $240,000 base + equity My client ... API contracts; advocate for the user when model outputs break do * wnBuild feedback loops that ...

New

Harnham

Software Engineer AI

Santa Rosa, CA · On-site

$190K - $240K/yr

Software Engineer, AI - Bay Area (Hybrid) Salary Range: $190,000 - $240,000 base + equity My client ... API contracts; advocate for the user when model outputs break do * wnBuild feedback loops that ...

New

CCI

Software Architect

Novato, CA

Some responsibilities include building robust and scalable software using Microsoft .Net ... Java are a plus. · Bachelor's degree, Computer Science or Electrical Engineering preferred. · ...

New

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All JobsJava Software Engineer Contract JobsJava Software Engineer Contract Jobs in Oakville, CA

Java Software Engineer Contract information

See Oakville, CA salary details

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How much do java software engineer contract jobs pay per hour?

As of Aug 28, 2026, the average hourly pay for java software engineer contract in Oakville, CA is $69.13, according to ZipRecruiter salary data. Most workers in this role earn between $56.92 and $78.12 per hour, depending on experience, location, and employer.

What is a Java software engineer contract?

A Java Software Engineer Contract is a temporary or fixed-term role where a software engineer is hired to develop, test, and maintain software applications using the Java programming language. Contractors typically work on specific projects or for a set period, rather than as permanent employees. These roles often require expertise in Java frameworks, object-oriented programming, and collaboration with other developers or teams. Contract positions can offer flexibility, competitive pay, and opportunities to work on diverse projects.

What are the key skills and qualifications needed to thrive as a Java software engineer contractor?

To thrive as a Java Software Engineer Contractor, you need strong proficiency in Java programming, experience with software development lifecycles, and typically a bachelor's degree in computer science or a related field. Familiarity with tools such as Spring Framework, Git, Maven, and cloud platforms, as well as knowledge of unit testing frameworks, is highly valued. Excellent problem-solving abilities, adaptability, and clear communication help you stand out, especially when collaborating remotely or integrating with diverse teams. These skills and qualities are crucial for delivering reliable, scalable solutions on time and ensuring smooth coordination in dynamic project environments.

What are some common challenges faced by Java software engineers on contract assignments, and how can they be managed?

Contract Java Software Engineers often face challenges such as quickly adapting to new codebases, understanding project requirements with limited onboarding time, and integrating smoothly with established teams. To manage these challenges, it's important to proactively communicate with team members, ask clarifying questions early, and make use of available documentation. Contract roles also require strong time management and self-motivation, as deliverables and expectations may be clearly defined but support can be less hands-on compared to permanent positions.

What is the difference between Java Software Engineer Contract vs Java Software Engineer?

AspectJava Software Engineer ContractJava Software Engineer
Employment TypeTemporary/Project-basedFull-time/permanent
DurationFixed-termIndefinite
Work EnvironmentClient sites, consulting firms, or remoteCompany offices or remote
CertificationsTypically no specific certifications requiredOften prefers Java certifications or related credentials

Java Software Engineer Contract roles are temporary positions focused on specific projects, offering flexibility but less job security. Full-time Java Software Engineers work permanently within organizations, with benefits and career growth opportunities. Both roles require strong Java skills, but contracts may have less emphasis on certifications. Choose based on your career goals and desired work environment.

What cities near Oakville, CA are hiring for Java Software Engineer Contract jobs?

Cities near Oakville, CA with the most Java Software Engineer Contract job openings:

Java Software Engineer Contract jobs near you

Software Engineer

Petaluma, CA • On-site

GCX Corporation
Health Care and Social Assistance • 201 - 500 employees
Learn more about GCX Corporationexternal

Full-time

Re-posted 8 hours ago

Job description

Lilitab, a subsidiary of GCX Corporation, is a leading provider of innovative tablet kiosk and mounting solutions for enterprise use. Our patented technologies, including the MagDOCK system, enable organizations across industries—such as retail, healthcare, hospitality, and events—to securely deploy tablets and self-service technologies that are adaptable, future-proof, and built to enhance customer engagement. As part of GCX, a leader in medical carts and medical mounting solutions, Lilitab combines entrepreneurial agility with the backing and resources of a market leader
About the Role

Lilitab/GCX is building next-generation IoT fleet management software for medical carts and connected healthcare devices used in hospitals nationwide. We’re looking for a Software Engineer who thrives across the full stack—from Linux-based device clients to modern cloud platforms.

In this role, you’ll design and build systems that connect physical hardware to cloud services, enabling healthcare organizations to provision, monitor, and manage thousands of devices at scale. You’ll work on a small, highly collaborative team with significant ownership and direct impact on product direction.

This is a hands-on engineering role, not a maintenance position—you’ll be building new features, shaping architecture, and helping unify multiple platforms into a single, scalable system.

What You’ll Do
  • Build Linux-based client applications that bridge hardware peripherals to cloud services (e.g., serial, HID, system interfaces)
  • Develop webview-based device UIs with JavaScript-to-native/system integrations
  • Design and implement Spring Boot REST APIs and React-based frontends
  • Create and enhance web-based admin interfaces for provisioning, monitoring, configuration, and analytics
  • Extend and maintain an existing Java/Jersey-based fleet management portal
  • Support and evolve a Python/Django IoT platform
  • Implement API proxy and composition patterns to integrate legacy and modern systems
  • Design and optimize PostgreSQL schemas, including hierarchical data models
  • Work with AWS cloud services, including IoT Core, Greengrass, ECS, S3, Lambda, and Cognito
  • Build and deploy containerized applications using Docker and CI/CD pipelines
  • Contribute to system integration design between embedded devices and cloud platforms
  • Troubleshoot and resolve complex production issues
  • Document technical designs, APIs, and operational processes
  • Collaborate on architecture, code reviews, and engineering best practices
Required Qualifications
  • 7–15 years of software engineering experience
  • Must reside within a 50-mile radius of Petaluma, CA
  • Must be authorized to work in the United States  
  • Strong experience building IoT or hardware-adjacent applications on Linux systems
  • Proficiency with:
    • Java (Spring Boot, REST APIs, Maven)
    • Python/Django
    • React (hooks, state management, component architecture)
  • Solid Linux systems experience (CLI, system-level debugging)
  • Experience with PostgreSQL (schema design, query optimization, migrations) and familiarity with MySQL
  • Hands-on experience with AWS services (ECS, S3, Lambda, Cognito)
  • Experience with Docker and containerized deployments
  • Familiarity with CI/CD pipelines (GitHub Actions or similar)
  • Strong understanding of REST API design and documentation (OpenAPI/Swagger)
  • Experience working across multiple layers of the stack
Preferred Qualifications
  • Experience with AWS IoT (IoT Core, Greengrass, edge computing)
  • Additional backend experience (e.g., Node.js/Express)
  • Modern Java experience (Spring Boot 3.x, Java 17+ / 21)
  • Experience with IoT device provisioning, telemetry, or fleet management systems
  • Familiarity with time-series data systems (e.g., Timestream, Kinesis)
  • Knowledge of OAuth2 / OpenID Connect / Cognito
  • Experience migrating or consolidating legacy systems
  • Background working with inherited or contractor-built codebases
  • Experience in healthcare, medical devices, or regulated environments
  • Exposure to iOS/iPad application development
About the Team & Product

GCX/Lilitab designs and manufactures medical carts and mounting solutions used in healthcare environments across the U.S. Our software team is building IoT solutions that bring these devices online—enabling real-time monitoring, remote management, and operational insights.

You’ll join a small, high-impact team (3–4 engineers) working across:

  • A Java-based tablet/peripheral management platform
  • A Python-based IoT system for medical carts

You’ll play a key role in evolving these into a unified fleet management platform.

What Success Looks Like

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