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Python Developer Jobs in Leesburg, VA (NOW HIRING)

Aretum

Senior Python Developer

Mclean, VA · On-site +1

$122.80K - $165.30K/yr

As a Senior Python Developer, you will assist in leading the integration of a custom application with other client based systems. Due to the nature of our work as a federal consulting organization ...

Aretum

Senior Python Developer

Mclean, VA · Remote

$122.80K - $165.30K/yr

As a Senior Python Developer, you will assist in leading the integration of a custom application with other client based systems. Due to the nature of our work as a federal consulting organization ...

Ekcel Technologies Inc

Sr AWS Python Developer

Reston, VA · On-site

$126.40K - $170.10K/yr

Sr AWS Python Developer (2 positions) Location- Reston, VA (In person Client interview) day one onsite Experience : 8 to 18 years FTE or C2C We are looking for Visa independent candidates only for ...

Aretum

Senior Python Developer

Mclean, VA · Remote

$124.40K - $167.40K/yr

As a Senior Python Developer, you will assist in leading the integration of a custom application with other client based systems. Due to the nature of our work as a federal consulting organization ...

Navtech, Inc.

Senior Python Developer

Mclean, VA · On-site

$123.50K - $166.20K/yr

... Python Developer Experience with Python frameworks e.g., Django, Flask. • Good experience on writing the test cases, Unit Testing, and automation test by using PYTEST Understanding of databases and ...

KMM Technologies, Inc

Sr. Python Developer

Rockville, MD

$123.80K - $166.70K/yr

Position: Sr. Python Developer Location: Rockville, MD / Tysons, VA #HYBRID Duration: 12 months #Contract Interview: 1st Video & 2nd IN-Person Key Responsibilities : * Design, develop, and maintain ...

PTR Global

Senior Python Developer

Mclean, VA

$80 - $85/hr

Senior Python Developer Location: McLean, Virginia Duration: Contract Job ID: 177144 Job Overview: The Senior Software Developer will contribute to the firm's data modernization initiative within the ...

Palnar

Sr. Python Developer

Mclean, VA · On-site

$123.50K - $166.20K/yr

Master's degree in Computer Science, Software Engineering or related technical field Demonstrated knowledge of: * Python, Pandas and other popular Python libraries * Java * Testing frameworks such as ...

Cymertek

Java, Scala, Python Developer

Reston, VA · On-site

Java, Scala, Python Developer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a versatile and highly skilled ...

Mindlance

Senior Python Developer

Mclean, VA

$124.60K - $167.70K/yr

Detailed Python Full Stack Developer Location: (Fully Onsite), Mclean, VA 22102 Duration: 6 months + Extensions Responsibilities: * Refactor and modernize existing components of an ETL application to ...

Cymertek

Java, Scala, Python Developer

Chantilly, VA · On-site

Java, Scala, Python Developer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a versatile and highly ...

SES

Python/Gen AI Developer

Reston, VA

$52.25 - $72/hr

Systems Engineering Services is seeking an AI/Python Developer with a Java Certification based out of the Washington DC/Reston area. Top 5 Technical Skills: * Python * Gen AI * SQL * AWS Data ...

New

CGI Inc.

Senior AWS Python Developer

Reston, VA · On-site

$126.40K - $170.10K/yr

Senior AWS Python Developer Category: Software Development/ Engineering Main location: United States, Virginia, Reston Position ID:J0426-1915 Employment Type: Full Time U.S. - Finding purpose at CGI ...

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Python Developer information

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How much do python developer jobs pay per hour?

As of May 30, 2026, the average hourly pay for python developer in Leesburg, VA is $59.29, according to ZipRecruiter salary data. Most workers in this role earn between $48.89 and $67.36 per hour, depending on experience, location, and employer.

What Does a Python Developer Do?

As a Python developer, your job is to use the Python programming language to develop, implement, and debug a project. In this role, you may create an application for your employer, design the framework for your code, build tools as necessary to get the job done, create websites, or publish new services. Python developers often work with data collection and analytics to create useful answers to questions and provide insight where it's needed most. Like most programming positions, the specifics of this job vary based on the needs of your employer. Some Python developers work as independent contractors instead of being exclusive to one company.

What are the key skills and qualifications needed to thrive as a Python Developer, and why are they important?

To thrive as a Python Developer, you need strong programming skills in Python, a solid understanding of algorithms and data structures, and often a degree in computer science or a related field. Familiarity with frameworks like Django or Flask, version control systems such as Git, and knowledge of databases and cloud services are commonly required. Problem-solving ability, attention to detail, and effective communication help developers collaborate and deliver high-quality code. These skills and qualities are vital to building efficient, scalable software solutions and contributing effectively to development teams.

What are some common challenges Python Developers face when working on large-scale projects?

Python Developers working on large-scale projects often encounter challenges such as managing codebase complexity, ensuring consistent code style among team members, and optimizing application performance. Collaboration with other developers becomes essential, often requiring the use of version control systems and code review processes. Additionally, integrating Python code with other technologies or legacy systems can present unique compatibility and testing hurdles. Proactively adopting best practices like modular architecture and thorough documentation can help mitigate these issues.

What is the difference between Python Developer vs Java Developer?

AspectPython DeveloperJava Developer
Required CredentialsBachelor's in CS or related field, Python certifications (optional)Bachelor's in CS or related field, Java certifications (optional)
Work EnvironmentWeb development, data science, automation, scriptingEnterprise applications, Android development, backend systems
Industry UsageTech startups, data companies, automation firmsFinancial services, enterprise software, mobile app companies
Common Search/ComparisonOften compared for backend and scripting rolesCompared for enterprise and mobile app development

Python Developers and Java Developers share similar educational backgrounds and often work in backend environments. However, Python is favored for data science, scripting, and rapid development, while Java is preferred for large-scale enterprise applications and Android development. Both roles are highly sought after, but their industry focus and project types differ.

More about Python Developer jobs
What are the most commonly searched types of Python Developer jobs in Leesburg, VA? The most popular types of Python Developer jobs in Leesburg, VA are:
What are popular job titles related to Python Developer jobs in Leesburg, VA? For Python Developer jobs in Leesburg, VA, the most frequently searched job titles are:
What job categories do people searching Python Developer jobs in Leesburg, VA look for? The top searched job categories for Python Developer jobs in Leesburg, VA are:
What cities near Leesburg, VA are hiring for Python Developer jobs? Cities near Leesburg, VA with the most Python Developer job openings:
Python Developer jobs near you
Infographic showing various Python Developer job openings in Leesburg, VA as of May 2026, with employment types broken down into 74% Full Time, 17% Part Time, and 9% Contract. Highlights an 74% Physical, 4% Hybrid, and 22% Remote job distribution, with an average salary of $123,332 per year, or $59.3 per hour.

Senior Python Developer

Aretum

Mclean, VA • On-site, Remote

$122.80K - $165.30K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 9 days ago

Job description

Public Trust Eligibility Required
About Aretum
Aretum is a mission-driven organization committed to delivering innovative, technology-enabled solutions to our customers across defense, civilian, and homeland security sectors. Our teams work at the intersection of strategy, technology, and transformation, helping agencies solve their most critical challenges. We believe in investing in our people and creating a culture where collaboration, inclusion, and professional growth are at the forefront.
Job Summary
Aretum is seeking a skilled and motivated Senior Python Developer. As a Senior Python Developer, you will assist in leading the integration of a custom application with other client based systems.
Due to the nature of our work as a federal consulting organization, employees may be expected to handle Controlled Unclassified Information (CUI) and must adhere to applicable safeguarding and compliance requirements.
Responsibilities
  • Work cross-functionally in an Agile environment
  • Build FastAPIs for the display of content
  • Create microservices
  • Work on front-end and back-end code
  • Mentor peers and junior developers in Python design
  • Build ETL processes
  • Work in a highly collaborative environment
  • Juggle multiple tasks at once
  • Work independently and collaboratively as needed
  • Utilize interpersonal skills and strong communication skills
  • Work directly with the Project Manager to support emerging client needs

Requirements
  • 8+ years of solid Python development experience
  • 8+ years of overall (OOP) programming experience
  • Bachelor's Degree (or 2 additional years of experience)
  • API development and integration experience
  • Experience with Microservices
  • Experience with JavaScript and JQuery
  • Experience with Search engines, such as Solr or Elasticsearch
  • Experience designing and developing enterprise Web and Search systems
  • Experience with enterprise database technologies, such as Postgres and MySQL
  • Experience building and managing container technologies such as Docker, Podman, Kubernetes, etc.
  • Comfortable with working with open source-based solutions
  • Familiar with enterprise use of Python
  • Expert in continuous integration/continuous delivery solutions
  • Experience with large-scale AWS based solutions and Terraform
  • Agile environment experience

Preferred Qualifications
  • Bachelor's Degree in computer science, engineering or related field
  • Experience with the federal government
  • Experience with FastAPIs (Highly preferred)

Travel Requirements
This is a remote position; however, occasional travel may be required based on project needs, client meetings, team collaboration events, or training sessions. Travel is expected to be less than 10% and will be communicated in advance whenever possible.
EEO Statement
Aretum is committed to fostering a workplace rooted in excellence, integrity, and equal opportunity for all. We adhere to merit-based hiring practices, ensuring that all employment decisions are made based on qualifications, skills, and ability to perform the job, without preference or consideration of factors unrelated to job performance.
As an Equal Opportunity Employer, Aretum complies with all applicable federal, state, and local employment laws.
We are proud to support our nation's veterans and military families, providing career opportunities that honor their service and experience.
If you require reasonable accommodation during the hiring process due to a disability, please contact hr@aretum.com for assistance.
Equal Opportunity Employer/Veterans/Disabled
U.S. Work Authorization
Applicants must be U.S. citizens or currently authorized to work in the United States on a full-time basis. This position supports a federal government contract and requires the ability to obtain and maintain a Public Trust or Suitability Determination, depending on the agency's background investigation requirements. Sponsorship is not available.
Benefits
  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off
  • Family Leave (Maternity, Paternity)
  • Short Term & Long-Term Disability
  • Training & Development

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