Explore 14 python developer jobs from 3 hiring companies in Lonaconing, MD, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Onsite

ECS is seeking a Web Application Developer Senior to work in our Winchester, VA office.  Please Note: This position is contingent upon contract award.
 
Responsible for designing, testing, and developing well designed web based software coding that is testable, and efficient by using best software development practices to meet user’s needs; recommending software upgrades for current and future systems; as well as translating the User Interface (UI)/User Experience (UX) design wireframes, ensuring software continues to function normally through software maintenance and testing; and documenting every aspect of the application, service or environment as a reference for future maintenance and upgrades.

Web Application Developer Senior

Bachelor's degree; TS/SCI clearance; 2+ years in AWS/C#/Java/Python; web app development.

ECS is seeking a Software Developer Senior to work in our Winchester, VA office.  Please Note: This position is contingent upon contract award.
 
Responsible for the design, development, testing, and management of the application development projects in support of IT infrastructure. This includes the programmatic integration of third-party components, the introduction of new custom capabilities, modification of existing code, process improvement recommendation, and automation of operations and maintenance tasks. Develop and implement technical efforts to design, build, and deploy applications at the direction of lead architects, including large-scale data processing, computationally intensive statistical modeling, and advanced analytics. Participate in all aspects of the software development life cycle for all solutions, including planning, requirements, development, testing, and quality assurance. Duties include technical project milestone reviews, code architecture sessions, resource estimation, and development best practices knowledge transfer. Provides technical lead of development staff, along with peer level interaction with project managers and architects.

Software Developer Senior

Software Developer

Bachelor's degree; TS/SCI clearance; 4+ years in AWS, C#, Java, or Python.

ECS is seeking a Software Developer Mid to work in our Winchester, VA office.  Please Note: This position is contingent upon contract award.
 
Responsible for the design, development, testing, and management of the application development projects in support of IT infrastructure. This includes the programmatic integration of third-party components, the introduction of new custom capabilities, modification of existing code, process improvement recommendation, and automation of operations and maintenance tasks. Develop and implement technical efforts to design, build, and deploy applications at the direction of lead architects, including large-scale data processing, computationally intensive statistical modeling, and advanced analytics. Participate in all aspects of the software development life cycle for all solutions, including planning, requirements, development, testing, and quality assurance. Duties include technical project milestone reviews, code architecture sessions, resource estimation, and development best practices knowledge transfer. Provides technical lead of development staff, along with peer level interaction with project managers and architects.

Software Developer Mid

Bachelor's degree; TS/SCI clearance; 2+ years in AWS, C#, Java, or Python.

ECS is seeking a Software Developer SME to work in our Winchester, VA office.  Please Note: This position is contingent upon contract award.
 
Responsible for the design, development, testing, and management of the application development projects in support of IT infrastructure. This includes the programmatic integration of third-party components, the introduction of new custom capabilities, modification of existing code, process improvement recommendation, and automation of operations and maintenance tasks. Develop and implement technical efforts to design, build, and deploy applications at the direction of lead architects, including large-scale data processing, computationally intensive statistical modeling, and advanced analytics. Participate in all aspects of the software development life cycle for all solutions, including planning, requirements, development, testing, and quality assurance. Duties include technical project milestone reviews, code architecture sessions, resource estimation, and development best practices knowledge transfer. Provides technical lead of development staff, along with peer level interaction with project managers and architects.

Software Developer SME

Bachelor's degree; TS/SCI clearance; 6+ years in AWS, C#, Java, or Python.

Description <div>Web Application Developer - TS</div><div> </div><div>Xcelerate Solutions is currently seeking an experience Web Application Developer. As a Web Application Developer, you will play a pivotal role supporting our federal client as our team designs, architects and implements a secure application development environment (ADV) specifically engineered to accelerate the Scaled Agile Framework (SAFe) transformation. This environment will integrate automated security controls directly into the client’s Continuous Delivery Pipeline and prioritize developer productivity and autonomy as well as enable Zero Trust architecture that scales across distributed teams without compromising the Lean-Agile mindset. Come join our award-winning organization and work with the most talented and brightest minds in the GovCon industry. </div><div> </div><div>Location: </div><div>Winchester, VA (full time on client site)</div><div> </div><div>Clearance</div><div>Active Top Secret</div><div> </div><div>Responsibilities:</div><ul><li>Design, develop, test, and maintain well‑structured, efficient, and secure web‑based applications using modern development practices.</li><li>Translate UI/UX wireframes, prototypes, and design concepts into responsive, accessible, and user‑friendly web interfaces.</li><li>Recommend software upgrades, modernization opportunities, and improvements for current and future systems.</li><li>Ensure application functionality, performance, and security through ongoing maintenance, testing, and optimization.</li><li>Document application architecture, APIs, workflows, and configuration details to support future maintenance and enhancements.</li><li>Collaborate with cross‑functional teams—including architects, developers, testers, and security engineers—to ensure alignment with enterprise standards and mission needs.</li><li>Participate in Agile ceremonies and contribute to backlog refinement, sprint planning, and iterative delivery.</li><li>Troubleshoot complex issues across development, test, and production environments, identifying root causes and implementing corrective actions.</li><li>Integrate automated security controls and testing into the development workflow to support DevSecOps practices.</li><li>Develop reusable components, libraries, and patterns that support scalable, cloud‑native web applications.</li></ul><div> </div><div>Minimum Requirements:</div><ul><li>Bachelor’s Degree applicable field of study</li><li>Experience in one of the following:</li><ul><li>AWS Cloud based solutions</li><li>C#</li><li>Java</li><li>Python</li></ul><li>Experience developing software in an Agile or SAFe environment.</li><li>Strong understanding of object‑oriented programming, design patterns, and modern development practices.</li><li>Ability to write clean, maintainable, and testable code.</li><li>Ability to troubleshoot complex issues across development, test, and production environments.</li></ul><div> </div><div>Preferred Qualifications:</div><ul><li>Experience supporting federal systems, ATO processes, or compliance frameworks</li><li>Familiarity with FedRAMP, NIST 800‑53, or Zero Trust principles</li></ul><div> </div><div>About Xcelerate Solutions: Founded in 2009 and headquartered in McLean, VA, Xcelerate Solutions (www.xceleratesolutions.com) is one of America's fastest-growing companies. Xcelerate’s culture is defined by our diversified workforce of dynamic and versatile professionals, supported with growth and development opportunities that contribute to individual and company growth. This strong commitment to our employees has been recognized by our inclusion on the Washington Business Journal’s “50 Best Places to Work” list as well as being a “Great Place to Work” certified company with a 4.6 star, and a 99% CEO approval Glassdoor rating. Come find out why Xcelerate Solutions is one of the DC Metro top employers!</div><div>Xcelerate Solutions is an Equal Employment Opportunity/Affirmative Action Employer.  We evaluate qualified applicants without regard to race, color, national origin, religion, age, equal pay, disability, veteran status, sex, sexual orientation, gender identity, genetic information, or expression of another protected characteristic. As part of this commitment to the full inclusion of all qualified individuals, Xcelerate provides reasonable accommodations if needed because of an applicant's or an employee's disability. Pay Transparency Notice: Xcelerate Solutions will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant.</div>

Web Application Developer - Top Secret

Web Application Developer

Bachelor’s degree; experience in AWS, C#, Java, or Python; SAFe/Agile; OO programming; secure DevSecOps.

Position Summary&#160;The&#160;Systems Engineer II &#8211; Cybersecurity &amp; DevOps&#160;is responsible for&#160;architecting, deploying, and&#160;optimizing&#160;secure systems and infrastructure across the organization. This role integrates advanced cybersecurity measures, DevOps automation, and AI tools to ensure robust protection and operational efficiency. Working closely with IT, infrastructure, and business units, the engineer upholds the confidentiality, integrity, and availability of critical assets, while driving compliance and continuous improvement in a rapidly evolving technical landscape.&#160;Key Responsibilities:&#160;(including but not limited to):&#160;<ul><li>Design, implement, and&#160;maintain&#160;secure systems, networks, and cloud environments using modern DevOps practices and automation tools.&#160;</li></ul><ul><li>Integrate cybersecurity controls throughout system architectures, infrastructure upgrades, and software development life cycles (SDLC).&#160;</li></ul><ul><li>Develop and manage CI/CD pipelines for secure deployment and configuration management.&#160;</li></ul><ul><li>Monitor systems and security events,&#160;leveraging&#160;AI&#160;tools&#160;and intelligent automation to detect threats and&#160;optimize&#160;responses.&#160;</li></ul><ul><li>Lead or support incident response, including investigation, containment, remediation, and post-incident analysis.&#160;</li></ul><ul><li>Conduct risk and vulnerability&#160;assessments, and&#160;plan remediation strategies for continuous improvement.&#160;</li></ul><ul><li>Implement and administer identity and access management, including multi-factor authentication and least-privilege principles.&#160;</li></ul><ul><li>Collaborate with cross-functional teams to promote security best practices, DevOps culture, and awareness of emerging technologies.&#160;</li></ul><ul><li>Document procedures, system configurations, and security controls for compliance and operational transparency.&#160;</li></ul><ul><li>Assess and&#160;validate&#160;the responsible use of AI and intelligent tools to enhance productivity and&#160;maintain&#160;data integrity.&#160;</li></ul>Required Qualifications&#160;<ul><li>Bachelor&#8217;s degree in Information Technology, Computer Science, Cybersecurity, Systems Engineering, or related field (or equivalent experience).&#160;</li></ul><ul><li>3+ years of experience in systems engineering, cybersecurity, or DevOps roles.&#160;</li></ul><ul><li>Strong knowledge of networking, operating systems (Windows, Linux), and security frameworks.&#160;</li></ul><ul><li>Experience with DevOps tools (e.g., Jenkins, Git, Docker, Kubernetes), automation scripting, and configuration management.&#160;</li></ul><ul><li>Proficiency&#160;in implementing security solutions such as firewalls, SIEM, endpoint protection, and vulnerability scanning.&#160;</li></ul><ul><li>Familiarity with AI tools or intelligent automation in IT environments.&#160;</li></ul>Preferred Qualifications&#160;<ul><li>Professional certifications (e.g., Security+, CISSP, CEH, GSEC, AWS Certified DevOps Engineer).&#160;</li></ul><ul><li>Experience with cloud platforms (AWS, Azure, GCP), cloud security, and compliance-driven environments.&#160;</li></ul><ul><li>Expertise&#160;in DevOps methodologies,&#160;infrastructure as&#160;code, and automation frameworks.&#160;</li></ul><ul><li>Exposure to&#160;AI-driven monitoring, orchestration, and security analytics.&#160;</li></ul><ul><li>Hands-on scripting and programming for security operations and system automation.&#160;</li></ul>Typical Skills &amp; Technologies&#160;<ul><li>Operating systems: Windows, Linux&#160;</li></ul><ul><li>Cloud platforms: AWS, Azure, GCP&#160;</li></ul><ul><li>Cybersecurity tools: firewalls, SIEM, endpoint protection, vulnerability scanners&#160;</li></ul><ul><li>DevOps tools: Jenkins, Git, Docker, Kubernetes, Ansible, Terraform&#160;</li></ul><ul><li>Monitoring and automation: AI tools, scripting (Python, PowerShell, Bash)&#160;</li></ul>Professional Skills&#160;<ul><li>Analytical troubleshooting and problem-solving&#160;</li></ul><ul><li>Clear documentation and communication&#160;</li></ul><ul><li>Cross-team collaboration&#160;</li></ul><ul><li>Responsible and validated use of AI and intelligent tools&#160;</li></ul>

Security Engineer

Mid-level Security Engineer with 3+ years in systems engineering, cybersecurity, or DevOps; strong networking, Windows/Linux, and DevOps tool experience.

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