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Freelance Java Backend Developer Jobs in West Virginia

Leidos

Senior Software Engineer

Clarksburg, WV · On-site

$131K - $237K/yr

Strong backend development experience in languages such as: * Java * Spring Boot * Hibernate ... Passion for quality control and improving engineering practices. * Excellent communication and ...

Leidos

Senior Software Engineer

Clarksburg, WV

$131K - $237K/yr

Strong backend development experience in languages such as: * Java * Spring Boot * Hibernate ... Passion for quality control and improving engineering practices. * Excellent communication and ...

Via Logic LLC

Senior Software Engineer

Clarksburg, WV · On-site

$131 - $237/hr

  • Medical

  • Retirement

  • PTO

Strong backend development experience in languages such as: * Java * Spring Boot * Hibernate ... Passion for quality control and improving engineering practices. * Excellent communication and ...

New

AmeriSave Mortgage Corp.

$150K - $180K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Strong experience with Node.js and Java for backend development. * Expertise in TypeScript for both ... Experience with CI/CD pipelines and DevOps practices. * Experience with AI-enhanced UI/UX design ...

Leidos

Software Engineer - Junior Level

Clarksburg, WV

$57K - $104K/yr

This role will play a part in creating front-end and backend services, developing APIs, and ... Developer, Jira, Bitbucket, OpenShift, SmartBear ReadyAPI, SoapUI, LoadUi, Java, Spring, Maven ...

Leidos

Software Engineer - Junior Level

Clarksburg, WV · On-site

$57K - $104K/yr

This role will play a part in creating front-end and backend services, developing APIs, and ... Developer, Jira, Bitbucket, OpenShift, SmartBear ReadyAPI, SoapUI, LoadUi, Java, Spring, Maven ...

Leidos

Software Engineer - Mid Level

Clarksburg, WV · On-site

$69K - $125K/yr

This role will play a part in creating front-end and backend services, developing APIs, and ... Developer, Jira, Bitbucket, OpenShift, SmartBear ReadyAPI, SoapUI, LoadUi, Java, Spring, Maven ...

Leidos

Software Engineer - Mid Level

Clarksburg, WV

$69K - $125K/yr

This role will play a part in creating front-end and backend services, developing APIs, and ... Developer, Jira, Bitbucket, OpenShift, SmartBear ReadyAPI, SoapUI, LoadUi, Java, Spring, Maven ...

GDIT

Application Developer (Angular)

WV · On-site +1

$64K - $86K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Angular, Java (Programming Language), JavaScript Certifications: None Experience: 1 + years of ... Back-end development; Experience supporting CMS and the Center for Program Integrity * Location

SailPoint

Senior Staff Software Engineer

Charleston, WV · On-site

$113K - $149K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

You will write clean, robust Java code, build advanced prototypes to gather user feedback, and ... We are passionate about developer autonomy, technical innovation, and delivering state-of-the-art ...

SailPoint

Sr. Manager, Engineering

Charleston, WV · Remote

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

You will work closely with Product Management, Design, Architecture, Quality, DevOps, and customer ... Experience across a modern backend stack, such as polyglot services (Java, Go, Rust), event-driven ...

SWIFT VA

Senior Test Automation Engineer

Charleston, WV · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... and backend applications. * Develop and execute automated test scripts using tools such as Selenium, Playwright, Cypress, and programming languages including Java, Python, or C#. * Integrate ...

Huntington

Principal Innovation Engineer

Huntington, WV · On-site

  • Medical

  • Life

  • Retirement

  • PTO

... backend development depth * Strong hands-on software engineering experience using one or more modern programming languages (e.g., Java, Python, TypeScript/JavaScript, or similar), with the ability to ...

GDIT

Oracle E-Business Suite (EBS) Tester

WV · On-site +1

$89K - $120K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Professional Engineering Job Qualifications: Skills: Integration Testing, Oracle E-Business Suite ... Experience testing/automating Web forms, Java forms, Web Services, backend services and ETL. * ...

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Freelance Java Backend Developer jobs near you

Senior Software Engineer

Leidos

Clarksburg, WV • On-site

$131K - $237K/yr

Full-time

Posted 9 days ago

Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 152 frontline employees who took The Breakroom Quiz

78th of 494 rated business services

Job description

We are seeking an experienced Senior Software Engineer with a strong backend focus and full-stack capabilities to design, build, test and maintain scalable software systems. This role will play a key part in architecting backend services, developing APIs, and collaborating with development team to deliver reliable, high-performance applications.
The ideal candidate has deep experience in backend systems, cloud-native architectures, testing, and modern CI/CD practices and tools, while also being comfortable contributing across the full stack when needed.
Key Responsibilities:
  • Design and develop scalable backend services, APIs, and microservices.
  • Create and maintain full-scale testing architecture plans and system design for software application.
  • Build, test, and maintain high-performance, secure, and reliable applications.
  • Collaborate with product managers, designers, customers, and engineers to deliver new features.
  • Write clean, maintainable, well-tested code following best practices.
  • Review code and mentor junior engineers.
  • Optimize applications for performance, scalability, and reliability.
  • Support CI/CD pipelines and cloud infrastructure for application.
  • Participate in Agile ceremonies including sprint planning, standups, retrospectives, and PI planning events.
  • Troubleshoot production issues and implement long-term solutions.
  • Functions as a technical expert across multiple project assignments.

Required Qualifications:
  • Bachelor's degree in Computer Science, Software Engineering, related field, or equivalent experience.
  • 12-15+ years (or 10-13 years with Master's Degree) of professional software development experience.
  • Strong backend development experience in languages such as:
    • Java
    • Spring Boot
    • Hibernate
    • Hibernate using native queries
    • Strong automated testing experience in end-to-end testing, regression testing, integration testing, etc.
  • Experience building RESTful APIs and microservices architectures.
  • Strong knowledge of relational databases (PostgreSQL, MySQL, etc.)
  • Experience with cloud platforms such as AWS, Azure, or Google Cloud.
  • Experience with agile project management software such as Jira, Confluence, etc.
  • Familiarity with containerization technologies like Docker and Kubernetes.
  • Experience with version control systems such as Git.
  • Experience with CI/CD pipelines such as Gitlab.
  • Strong understanding of software architecture, design patterns, and system scalability.

Preferred Qualifications:
  • Experience with frontend frameworks (React, Angular, or Vue).
  • Knowledge of infrastructure-as-code tools (Terraform, CloudFormation).
  • Experience with observability tools (Datadog, Prometheus, Grafana).

Key Competencies:
  • Strong problem-solving and analytical thinking.
  • Passion for quality control and improving engineering practices.
  • Excellent communication and collaboration skills.
  • Ownership mindset and accountability for deliverables.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
August 11, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $131,300.00 - $237,350.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

What Leidos employees say

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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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