Senior Java Engineer

ZipStaff Inc.; McLean (VA); On-site; USD 96,000 - 152,000; Full time

Job summary

ZipStaff Inc. is seeking a Senior Java Engineer for an on-site role in McLean, VA, to support investments and capital markets forecasting platforms.

The position emphasizes tightening access control, enhancing workflow orchestration, and modernizing the UI using Java/Spring on the back end and React on the front end. The candidate will work on access control, job queuing, and end-to-end workflow improvements, while contributing to design discussions, code reviews, and documentation.

Qualifications

• 5+ years hands-on software development (Java required).
• Proficiency with Java Spring, Git, Unix, and Jenkins.
• Experience with React.js front-end.
• Experience implementing access control/authorization.
• Experience with job scheduling or queuing.
• Designing and building modern web UIs.
• Ability to work on-site in McLean, VA.
• Authorized to work in the United States without sponsorship.

Responsibilities

• Enhance access control and authorization.
• Extend job queuing and scheduling with priorities.
• Streamline end-to-end workflows and orchestration.
• Analyze pipelines, produce performance stats, optimize jobs.
• Modernize UI structure, hierarchy, usability, and layout.
• Participate in design discussions, code reviews, and technical documentation.

Skills

Java

JavaScript

Web UI design

Access control

Job scheduling

Tools

Java Spring

React.js

Git

Unix

Jenkins

Docker

Kubernetes

Job description

Job Title: Senior Java Engineer (Workflow, Access Control & UI)

Location: McLean, VA (On-site)

Employment Type: Contract (W2 through ZipStaff — No C2C or 1099)

About the Opportunity

ZipStaff is seeking a Senior Java Engineer for the Investments & Capital Markets forecasting platform at a major financial services organization in McLean.

You will tighten access control, job queuing, and workflow orchestration, and modernize the UI. Java/Spring on the back end and React on the front end are both in play.

What You’ll Do:

• Enhance access control and authorization.
• Extend job queuing and scheduling (concurrent runs, priority, resource allocation).
• Streamline end-to-end workflows; refactor orchestration and inter-component coordination.
• Analyze run pipelines, produce performance stats, and optimize long-running jobs.
• Modernize UI structure, hierarchy, usability, and layout.
• Participate in design discussions, code reviews, and technical documentation.

Required Qualifications:

• 5+ years hands-on software development (Java required).
• Java Spring, Git, Unix, and Jenkins.
• JavaScript frameworks, React.js required.
• Experience implementing access control / authorization.
• Experience with job scheduling or queuing.
• Experience designing and building modern web UIs.
• Ability to work on-site in McLean, VA.
• Must be legally authorized to work in the United States without sponsorship now or in the future.

Preferred Qualifications:

• Python.
• 1–2 years Docker, Podman, or Kubernetes.
• Optimizing long-running or distributed compute pipelines.
• Financial forecasting, risk, or capital-markets platforms.

About ZipStaff

ZipStaff partners with leading organizations to connect skilled technology professionals with high-impact contract opportunities. We focus on quality matches, clear communication, and long-term success for candidates and clients.