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Mid Level Remote Mainframe Developer Jobs in Springfield, VA

System One

Java Mainframe Developer

Vienna, VA · Remote

$58.50 - $74.75/hr

Remote Type: Contract Responsibilities * Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distributed ...

System One

Java Mainframe Developer

Vienna, VA · Remote

$58.50 - $74.75/hr

Remote Type: Contract Responsibilities * Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distributed ...

System One

Java Mainframe Developer

Vienna, VA · Remote

$58.50 - $74.75/hr

Remote Type: Contract Responsibilities * Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distributed ...

System One

Java Mainframe Developer

Vienna, VA · Remote

$58.50 - $74.75/hr

Remote Type: Contract Responsibilities * Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distributed ...

Ariel Partners

Mid-Level Software Developer

Stafford, VA · On-site +1

... Mid-Level Software Developer to design, develop, test, and maintain enterprise software applications. The ideal candidate will have proven ability to deliver secure, scalable, and high-performing ...

System One

Mid Level Cyber Security Engineer

Reston, VA · Remote

$68.18/hr

Mid Level Cyber Security Engineer Location: Reston, VA Type: Contract Compensation: $68.18 Work ... Remote (Need to be in the office 1 time/month) Hours: 40.0 Responsibilities * Assist with day-to ...

System One

Mid Level Cyber Security Engineer

Reston, VA · Remote

$68.18/hr

Mid Level Cyber Security Engineer Location: Reston, VA Type: Contract Compensation: $68.18 Work ... Remote (Need to be in the office 1 time/month) Hours: 40.0 Responsibilities * Assist with day-to ...

stanleyreid

DevOps Engineer (mid-level) - FS Poly

Washington, DC · On-site +1

$59.75 - $81.75/hr

... remote work options. Join a close-knit team that invests in your career and well-being. The Role ... Mid-Level DevOps Engineer to provide technical expertise in sustaining critical mission-related ...

System One

Mid Level Cyber Security Engineer

Reston, VA · Remote

$68.18/hr

Mid Level Cyber Security Engineer Location: Reston, VA Type: Contract Compensation: $68.18 Work ... Remote (Need to be in the office 1 time/month) Hours: 40.0 Responsibilities * Assist with day-to ...

System One

Mid Level Cyber Security Engineer

Reston, VA · Remote

$68.18/hr

Mid Level Cyber Security Engineer Location: Reston, VA Type: Contract Compensation: $68.18 Work ... Remote (Need to be in the office 1 time/month) Hours: 40.0 Responsibilities * Assist with day-to ...

Steampunk

Mid-Level Salesforce Developer

Mclean, VA · On-site +1

$85K - $160K/yr

Contributions As a Mid-Level Salesforce Application Developer , you will be refactoring applications to better utilize out of the box functionality, refactoring the data model to use out of the box ...

System One

Mid Level Cyber Security Engineer

Reston, VA · Remote

$68.18/hr

Mid Level Cyber Security Engineer Location: Reston, VA Type: Contract Compensation: $68.18 Work ... Remote (Need to be in the office 1 time/month) Hours: 40.0 Responsibilities * Assist with day-to ...

Steampunk

Mid-Level Salesforce Developer

Mclean, VA · On-site +1

$56 - $74.25/hr

Contributions As a Mid-Level Salesforce Application Developer , you will be refactoring applications to better utilize out of the box functionality, refactoring the data model to use out of the box ...

inTALENTgent

Mid-Level Network Engineer

Chantilly, VA · Remote

ACTIVE TS\/SCI WITH FULL SCOPE POLY REQUIRED*** \n \n \n Looking for a Mid\-level Network Engineer ... Remote network and server administration \n * Implementing Virtual private network (VPN) \n

Peraton

Mid-Level Systems Engineer

Springfield, VA · On-site +1

$104K - $166K/yr

Responsibilities We are seeking a Mid-Level Systems Engineer to support the Government in ... Knowledge of photogrammetry, remote sensing, image science, geographic information systems (GIS ...

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Mid Level Remote Mainframe Developer information

See Springfield, VA salary details

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$75

How much do mid level remote mainframe developer jobs pay per hour?

As of Jul 16, 2026, the average hourly pay for mid level remote mainframe developer in Springfield, VA is $55.75, according to ZipRecruiter salary data. Most workers in this role earn between $49.23 and $63.27 per hour, depending on experience, location, and employer.
Mid Level Remote Mainframe Developer jobs near you
Java Mainframe Developer

Java Mainframe Developer

System One

Vienna, VA • Remote

$58.50 - $74.75/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Re-posted 28 days ago

Job description

Job Title: Java Developer Location: Remote Type: Contract

Responsibilities

  • Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distributed applications with the organization's Core Banking platform.
  • Translate business and platform requirements into secure, scalable, and reliable solutions throughout the full software development lifecycle.
  • Operate with minimal supervision while exercising strong technical judgment.
  • Collaborate with Core Banking, testing, middleware, and platform teams to manage dependencies, mitigate risks, and meet aggressive delivery timelines.
  • Design, develop, and optimize high-quality software applications using advanced programming languages and frameworks that meet business needs.
  • Gather and analyze requirements, translate into technical specifications, propose solutions, and ensure timely task completion.
  • Write clean, scalable, and maintainable code adhering to best practices and organizational standards.
  • Implement data structures and algorithms efficiently to optimize performance and user experience.
  • Identify, troubleshoot, and resolve application errors.
  • Conduct code reviews, provide feedback, and learn from colleagues to maintain high-quality codebase.
  • Lead small efforts, fostering relationships with stakeholders and team members.
  • Contribute to development policies, standards, and procedures for applications and software.
  • Continuously learn and improve through collaboration and feedback.
Requirements
  • Bachelor’s degree in Computer Science, Information Systems, or a related field, or equivalent experience.
  • 0 or more years of experience in application or software development.
  • Proficiency in software development principles, methodologies (including Agile), pipelines, and version control systems (Git and GitHub).
  • Expertise in Java, XML, Open API, Maven, and ANT, with knowledge of modern frameworks and libraries.
  • Strong understanding of web technologies and capacity to design scalable solutions.
  • Excellent problem-solving, analytical, and troubleshooting skills.
  • Effective written and verbal communication skills for technical and non-technical stakeholders.
  • Experience with incident tracking, project management, and change control tools.
  • Understanding of data structures and algorithms for application performance and scalability.
  • Experience developing web services, microservices, REST and SOAP APIs, and implementing REST principles.
  • Ability to write and maintain unit and integration tests and troubleshoot software defects.
  • Familiarity with CI/CD pipelines and web APIs like Apache HTTP Client, JAX-WS, JAX-RS.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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Ref: #851-Rockville-S1