Software Developer

Markon

Software Developer supporting integration of modern tools for NNL projects in air-gapped environments. Collaborating with developers on software development and troubleshooting in various programming languages.

Posted 4/29/2026full-timeWest Mifflin • Pennsylvania • 🇺🇸 United StatesMid-LevelSenior💰 $120,000 - $145,000 per yearWebsite

Tech Stack

Tools & technologies

DockerJavaJenkinsKubernetesLinuxOraclePostgresPythonUnix

About the role

Key responsibilities & impact

Support developers by integrating modern tools and practices into software workflows.
Onboard personnel and projects to new tools, processes, and environments.
Work effectively in offline (air-gapped) environments.
Develop and troubleshoot software in multiple languages (Java, Python, C/C++).
Use and maintain various build systems and software pipelines.
Apply container technologies (Docker, Podman, Kubernetes) in development and deployment.
Troubleshoot development issues and provide customer-focused support.
Use Git and hosting services (GitHub, Bitbucket) for version control.
Manage packages with tools like Conda, Spack, and Lmod.
Connect to and work with databases (Oracle, PostgreSQL, MSSQL).
Use development tools like VS Code and Linux/Unix CLI.
Implement and support CI/CD processes (Jenkins, GitHub Actions, Tekton).
Understand and manage pipeline integrations across tools and systems.
Interpret and resolve toolchain and integration errors.

Requirements

What you’ll need

Must have active DOE Q clearance to be considered.
At least 5-10 years of similar experience.
Experience working in air-gapped/offline environments.
Proficient in multiple programming languages (e.g., Java, Python, C/C++).
Strong understanding of software pipelines and CI/CD tools (e.g., Jenkins, GitHub Actions, Tekton).
Experience with container technologies (Docker, Podman, Kubernetes).
Skilled in troubleshooting and supporting other developers’ code.
Strong customer service skills with the ability to identify and resolve technical issues.
Proficient with Git and hosting platforms (e.g., GitHub, Bitbucket).
Knowledge of package managers (Conda, Spack, Lmod).
Experience with database connections (Oracle, PostgreSQL, MSSQL).
Comfortable using VS Code and Linux/Unix CLI (SSH, shell).
Understanding of software development processes and toolchain integration.
Able to interpret and resolve errors across tools and systems.

Benefits

Comp & perks

Medical
Dental
Vision
Life Insurance
Short-Term Disability
Long-Term Disability
401(k) match
Flexible Spending Accounts
EAP
Training and Tuition Assistance
Paid Time Off
Holidays

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

JavaPythonC/C++DockerPodmanKubernetesGitJenkinsGitHub ActionsTekton

Soft Skills

troubleshootingcustomer serviceproblem solving

Certifications

DOE Q clearance