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Remote Mainframe Developer Jobs in Maryland (NOW HIRING)

Impruvon

Senior Software Engineer

Baltimore, MD ยท On-site +1

$140K - $160K/yr

Remote - USA Reporting To: Principal Engineer (Head of Engineering) Compensation: $140,000 - $160,000 / year Description Impruvon builds software and connected hardware that transforms how care teams ...

Impruvon

Senior Software Engineer

Baltimore, MD ยท On-site +1

$140K - $160K/yr

Remote - USA Reporting To: Principal Engineer (Head of Engineering) Compensation: $140,000 - $160,000 / year Description Impruvon builds software and connected hardware that transforms how care teams ...

Impruvon

Senior Software Engineer

Baltimore, MD ยท On-site +1

$140K - $160K/yr

Remote - USA Reporting To: Principal Engineer (Head of Engineering) Compensation: $140,000 - $160,000 / year Description Impruvon builds software and connected hardware that transforms how care teams ...

SAIC

Software Engineer

Suitland, MD ยท On-site +1

$160K - $200K/yr

None Potential for Remote Work: ORA_ON_SITE Description ๏ปฟVaren, an SAIC company is seeking an experienced Software Engineer to join our team. This position in located in Suitland, MD and requires ...

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Remote Mainframe Developer information

What is a remote mainframe developer?

A Remote Mainframe Developer is a software professional who specializes in designing, developing, maintaining, and troubleshooting applications that run on mainframe computers, while working from a remote location. Mainframes are powerful computers often used by large organizations for critical applications, such as transaction processing and bulk data handling. Remote Mainframe Developers use programming languages like COBOL, JCL, and Assembler, and often connect to mainframe systems via secure networks. Their work ensures that legacy systems remain efficient, secure, and up-to-date. This role typically requires strong technical skills, experience with mainframe environments, and effective communication for collaborating with on-site teams.

What does a remote mainframe developer do?

As a remote mainframe developer, you work from home to design, code, test, and configure software and applications used on a mainframe system. Mainframes are large computers with particularly high processing power and are often used for critical tasks like bulk data processing or enterprise resource planning. In this role, you may help ensure all new software is fully backward-compatible, monitor system performance, isolate errors, and work collaboratively with other developers as needed. Most mainframe developers work for larger companies. As a remote employee, you use virtual office software, phone, chat, or email to remain connected to other employees.

What are the key skills and qualifications needed to thrive as a remote mainframe developer, and why are they important?

To thrive as a Remote Mainframe Developer, you need strong programming skills in languages like COBOL, JCL, and experience with mainframe operating systems, often supported by a degree in computer science or related field. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is typically required, along with relevant certifications. Excellent problem-solving abilities, independent work ethic, and effective virtual communication are standout soft skills for this remote role. These skills ensure smooth maintenance, modernization, and support of critical legacy systems in distributed teams.

How does a remote mainframe developer typically collaborate with on-site teams and manage communication challenges?

As a Remote Mainframe Developer, you'll often work closely with on-site IT teams, business analysts, and project managers through virtual meetings, chat platforms, and shared documentation tools. Effective communication is key, so regular check-ins and proactive status updates help ensure alignment on project goals and troubleshooting efforts. Many companies use agile methodologies, which means you'll likely participate in daily stand-ups and sprint planning sessions remotely. While time zone differences can be a challenge, flexible scheduling and clear communication protocols are common strategies to keep everyone connected and productive.

Are remote mainframe developer jobs in demand?

Remote mainframe developer jobs are in steady demand due to ongoing reliance on legacy systems in industries like finance and government. Skills in COBOL, JCL, and mainframe environments remain valuable, and remote work options are increasingly available for experienced professionals. However, the overall demand is influenced by industry adoption of modern technologies and digital transformation efforts.
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For Remote Mainframe Developer jobs in Maryland, the most frequently searched job titles are:

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Remote Mainframe Developer jobs near you
Infographic showing various Remote Mainframe Developer job openings in Maryland as of August 2026, with employment types broken down into 85% Full Time, 4% Part Time, and 11% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution.

Senior Software Engineer -- Secure Mission Systems

Laurel, MD โ€ข On-site, Remote

Rackner
IT Servicesย โ€ขย 11 - 50 employees
Learn more about Racknerexternal

$121K - $160K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 18 days ago

Key responsibilities

  • Design, develop, test, and integrate new software capabilities for secure mission-planning and decision-support software.

  • Build and maintain secure CI/CD workflows using GitLab and support containerized application deployment through OpenShift and Kubernetes.

  • Investigate vulnerabilities, support cybersecurity remediation, and participate in code reviews and technical discussions.

Job description

Senior Software Engineer — Secure Mission Systems

Location: Mainly remote, with onsite work in Laurel, Maryland, typically one day approximately every six weeks for team-wide sprint planning
Clearance: Active final DoD Secret clearance required

Build Secure Software for High-Impact Defense Missions

Rackner is seeking a Senior Software Engineer to design, build, test, and deliver secure mission-planning and decision-support software for a Department of Defense customer.

This role gives you broader ownership than a traditional feature-development position. You will contribute across application engineering, secure CI/CD, containerized deployment, automated testing, cybersecurity remediation, and AI-capability integration. You will work alongside experienced technical teams and help move complex software from design through secure delivery.

This position is contingent upon contract award and final customer approval.

What You Will Do

  • Design, develop, test, and integrate new software capabilities.
  • Build and maintain secure CI/CD workflows using GitLab and related development systems.
  • Support containerized application deployment through OpenShift and Kubernetes.
  • Apply secure software-development lifecycle practices throughout delivery.
  • Integrate AI models and support capabilities involving LLM assistants, retrieval-augmented generation, and agentic AI.
  • Develop unit, integration, and system-level tests.
  • Use automated security tools such as Fortify, JFrog Xray, and OWASP ZAP.
  • Investigate vulnerabilities and support cybersecurity remediation.
  • Participate in code reviews, technical reviews, and solution-design discussions.
  • Create software-design documents, sequence diagrams, workflow descriptions, and test reports.
  • Communicate progress, blockers, risks, and schedule concerns to technical and program stakeholders.
  • Collaborate with customer technical leads in remote and onsite settings.

What You Will Bring

  • Bachelor's degree in Computer Science or a related field
  • 10+ years of software engineering experience, including hands-on design, development, testing, or integration work
  • Hands-on experience with CI/CD, Kubernetes, GitLab, and OpenShift
  • Strong understanding of secure software-development lifecycle practices
  • Experience using Fortify and/or JFrog Xray for automated security scanning and vulnerability remediation
  • Integrating AI models or AI-enabled capabilities into software applications
  • Building automated unit and integration tests
  • Clear technical documentation and stakeholder communication skills

Helpful Experience

  • OWASP ZAP or comparable application-security testing tools.
  • Artifactory or similar artifact-management platforms.
  • LLM assistants, retrieval-augmented generation, or agentic-AI components.
  • Jira, Confluence, and Slack in a structured development environment.
  • Software delivery supporting defense, national-security, or other regulated missions.
  • Customer-provided development systems and secure internal networks.

Why Rackner

At Rackner, you will have the opportunity to build technology that supports critical defense and public-sector missions.

You will work on more than isolated coding tickets or pipeline tasks. This role brings together hands-on application development, secure software delivery, container platforms, automated testing, cybersecurity, and emerging AI capabilities.

Rackner has delivered more than $30 million in recent federal awards and supports mission-critical work across defense, civilian, and public-sector environments. We are looking for a senior software engineer who can help build on that momentum by delivering reliable software, strengthening security, and helping teams move complex mission capabilities forward.

Benefits & Professional Growth

  • Competitive compensation
  • Company-supported certifications aligned with current and future program work
  • 401(k) with 100% company match up to 6%
  • Medical, dental, vision, life, and disability coverage
  • Paid time off and company holidays
  • Remote-work support and home-office equipment plan
  • Fitness and wellness reimbursement
  • Weekly pay schedule
  • Professional-development and future growth opportunities

Apply

If you are a senior software engineer who wants broader ownership across secure application development, container platforms, DevSecOps, software assurance, and AI integration, we would like to hear from you.