Senior Software Engineer

Senior Software Engineer – React, , Java | Newark, CA
(100% On-site)
| Employment Type:
Contract

Join a high-performing engineering team focused on building scalable, modern web applications and React component libraries. This role is ideal for a seasoned engineer with deep expertise across
React, , and Java
, along with strong fundamentals in software design and architecture.

About the Role

As a Senior Software Engineer, you will design, develop, test, and maintain advanced software systems and reusable web components. You will collaborate closely with cross-functional teams to gather requirements, build technical solutions, and deliver high-quality applications that support business-critical operations. This role requires strong problem-solving skills, attention to detail, and the ability to work across both modern and legacy systems.

Key Responsibilities

• Architect, build, and maintain
  React web component libraries
• Develop and enhance complex software systems across React, , and Java
• Gather, analyze, and document system requirements
• Create detailed technical specifications and test plans
• Implement new applications and customize systems based on client requirements
• Modify existing programs to meet evolving standards
• Conduct unit testing and ensure quality through code reviews
• Troubleshoot issues across front-end, back-end, and legacy systems
• Perform post-deployment validation and resolve defects

What We're Looking For

• Bachelor's degree in Engineering, Computer Science, or related field
• 5–7 years of hands-on software development experience
• Strong foundation in
  data structures, algorithms, and software design principles
• Proven experience building scalable applications using
  React, , and Java
• Experience designing and developing large, distributed systems
• Strong debugging, troubleshooting, and performance-tuning skills
• Ability to work with both new and legacy production systems
• Strong communication and collaborative abilities

Compensation & Details

• Competitive compensation based on experience
• Flexible workplace options (if applicable)
• Opportunity to work on high-impact, large-scale engineering initiatives

Next Steps

If you're passionate about building robust applications and reusable component libraries while working with modern and scalable technologies, apply now to join a team where your expertise will make an immediate impact.