Explore 2 backend python developer jobs from 2 hiring companies in Shawnee Land, VA, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Backend Python Developer

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Backend Python Developer Jobs

Dobbs Defense Solutions

ManTech

Hybrid

Onsite

MANTECH seeks a motivated, career and customer-oriented Back-End Developer to join our team in Springfield, VA.
 
The Back-End Developer will lead the design, implementation, and maintenance of server-side logic, APIs, and system integration for technical applications. You will help ensure back-end components meet technical requirements and security standards while supporting overall mission objectives.
 
Responsibilities include but are not limited to:
Designing, developing, and maintaining server-side applications and APIs.
Building and managing databases while ensuring data integrity and security.
Integrating with authentication systems and security frameworks to meet all requirements.
Writing clean, efficient, and well-documented code for systems and interfaces.
Implementing security controls and maintaining a robust library of technical documentation.
Collaborating with developers and stakeholders to ensure seamless system integration.
Providing technical leadership and mentoring to junior developers to drive the technical agenda.
 
Minimum Qualifications:
Bachelor's degree in Computer Science or related field with 8+ years of experience in back-end development.
Expertise in back-end programming languages such as Python, Java, C#, Ruby, or Node.js.
Strong understanding of SQL and NoSQL database technologies and optimization techniques.
Experience with API design and development, including REST or GraphQL.
Proficiency with cloud platforms and containerization technologies like Docker and Kubernetes.
Knowledge of server-side frameworks and security best practices for classified environments.
Knowledge of database design and optimization techniques
Experience with authentication and authorization systems
 
Preferred Qualifications:
Experience working with classified systems and meeting complex security requirements.
Expertise in designing microservices architectures and using message brokers like Kafka.
Proficiency with Infrastructure as Code (IaC) tools such as Terraform or Ansible.
Experience with serverless computing and high-performance data processing.
 
Clearance Requirements:
An active TS/SCI with the ability to obtain and maintain a polygraph.
 
Physical Requirements:
The person in this position must be able to remain in a stationary position 50% of the time.
You will need to occasionally move about inside the office to access file cabinets and office machinery.
You must be able to exchange accurate information when frequently communicating with co-workers and management.

Back End Developer

Bachelor's degree in Computer Science or related field with 8+ years of back-end experience; strong proficiency in Python, Java, C#, Ruby, or Node.js; SQL/NoSQL databases; API design (REST/GraphQL); cloud and containers (Docker/Kubernetes); security best practices for classified environments.

Our Mission: At Dobbs Defense, we deliver mission-centric IT, Cyber, and data analytics solutions for our government and commercial clients through the convergence of automation, innovation, training, and education. Delivering high-quality IT, cybersecurity, and data analytics solutions through proven and innovative methods is our vision. Job Description: Dobbs Defense Solutions is seeking an experienced Software Development Engineer in Test (SDET) to design and implement automated test solutions for a distributed integration service that supports license plate capture from video streams, RFID card reads, and entry/exit sensor simulation. This role will focus on validating a .NET Core-based integration service that uses TCP and HTTP listeners to receive data from hardware components and exchange requests with downstream services. The ideal candidate will build an automation framework capable of simulating hardware inputs, validating message flows, testing service interactions, and ensuring reliability, accuracy, and performance across end-to-end workflows. Duties: &#160;<ul><li>Design, develop, and maintain automated test frameworks for a distributed integration system built on .NET Core</li><li>Create automated test solutions to validate:</li><li>License plate capture and processing from video streams</li><li>RFID card read events</li><li>Entry and exit sensor trigger simulation</li><li>End-to-end message flow between hardware-facing listeners and downstream services</li><li>Develop test harnesses, simulators, and mock services to emulate hardware devices and external service dependencies</li><li>Build automated tests for TCP and HTTP listener interfaces, including positive, negative, edge case, and fault-injection scenarios</li><li>Validate data ingestion, parsing, routing, transformation, and handoff across multiple services in a distributed environment</li><li>Automate integration, system, regression, and interface testing</li><li>Develop test scenarios for sequencing and timing-sensitive events, such as vehicle entry, sensor trigger order, RFID reads, and plate capture correlation</li><li>Verify system behavior under abnormal conditions such as delayed messages, malformed payloads, dropped connections, duplicate events, and out-of-order events</li><li>Create automated validation for logs, service responses, queues/messages, and database or persisted outputs where applicable</li><li>Partner with software engineers, architects, and integration teams to understand interface control documents, service behavior, and operational workflows</li><li>Support CI/CD integration so automated tests can run in build and deployment pipelines</li><li>Produce clear test documentation including test plans, test cases, traceability, defect reports, and automation run results</li><li>Help define test data strategy for video clips, RFID event payloads, and simulated sensor event sequences</li><li>Contribute to performance and reliability testing for distributed service communication and event processing</li></ul>Qualifications&#160; Required Education and Experience:<ul><li>Bachelor&#8217;s degree in Computer Science, Software Engineering, Electrical Engineering, or related field, or equivalent practical experience</li><li>5+ years of experience in software testing and test automation, with strong hands-on SDET experience</li><li>Strong programming experience in C# and .NET / .NET Core</li><li>Experience building automation frameworks for backend services, APIs, and distributed systems</li><li>Experience testing HTTP APIs and TCP socket-based interfaces</li><li>Experience developing mock services, simulators, or test harnesses for external systems or hardware interfaces</li><li>Strong understanding of integration testing, system testing, regression testing, and end-to-end automation</li><li>Experience validating asynchronous and event-driven workflows</li><li>Familiarity with log analysis, troubleshooting distributed systems, and root cause investigation</li><li>Experience using test tools and frameworks such as xUnit, NUnit, MSTest, Postman/Newman, RestAssured-like API tools, or custom test harnesses</li><li>Experience with source control and DevOps tools such as Git, Azure DevOps, GitLab, or Jenkins</li><li>Strong analytical and problem-solving skills with attention to detail</li></ul>Preferred Qualifications:<ul><li>Experience testing systems that integrate with physical hardware devices, sensors, cameras, RFID readers, or other field equipment</li><li>Experience with video-based testing or validating image/video processing workflows</li><li>Experience with message-oriented or distributed architectures, including queues, brokers, or service-to-service communication patterns</li><li>Familiarity with network protocols, socket communication, and troubleshooting connectivity issues</li><li>Experience with performance, load, or soak testing for integration services</li><li>Experience working from ICDs, interface specifications, sequence diagrams, and system requirements</li><li>Familiarity with containerized environments and service deployment patterns</li><li>Experience in regulated, operational, or mission-critical environments</li></ul>Technical Skills:<ul><li>Languages/Frameworks: C#, .NET Core, scripting in PowerShell or Python preferred</li><li>Interfaces/Protocols: HTTP/REST, TCP/IP, sockets</li><li>Testing: API automation, integration testing, system testing, regression testing, negative testing, fault injection</li><li>Tools: xUnit/NUnit/MSTest, Git, CI/CD pipelines, log analysis and monitoring tools</li><li>Nice to Have: Docker, mock servers, network packet analysis tools, test data generation tools</li></ul>Working Environment: Hybrid; 2 days per week on-site in Ashburn, VA required. Required Clearance: Ability to obtain and maintain CBP clearance. Our Equal Employment Opportunity Policy: Dobbs Defense Solutions is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth or breastfeeding), sexual orientation, gender or gender identity (except where gender is a bona fide occupational qualification), gender expression and transgender status, national origin, ancestry, age, disability, military or veteran status, marital or domestic partner status, genetic information, citizenship, low-income status or any other status or characteristic protected by applicable law. We are committed to equal employment opportunity in all decisions related to employment, promotion, wages, benefits, and all other privileges, terms, and conditions of employment.&#160; Salary Range: Pay range information will be disclosed consistent with applicable state and local pay transparency laws once available. For this position, the anticipated salary range is $114,700.00-$117,475.00 annually, depending on experience, qualifications, and overall fit for the role.&#160;

Software Developer (Automation & Distributed Integration Systems)

Software Developer

5+ years software testing and test automation; strong C#/.NET Core; experience with backend services, APIs, distributed systems; CI/CD; test frameworks.

Backend Python Developer Jobs in Shawnee Land, VA, US | HiringCafe: every job on earth

Backend Python Developer Jobs in Shawnee Land, VA, US

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