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Python Developer Jobs in Leesburg, VA (NOW HIRING)

KTS

Python Developer

Reston, VA · On-site

$52.25 - $72/hr

Familiarity with event-driven programming in Python * Able to create database schemas that represent and support business processes * Unit test and debugging skills * Proficient understanding of code ...

BTree Solutions, Inc.

SR. PYTHON DEVELOPER

Reston, VA · On-site

$126K - $170K/yr

Job Title: SR. PYTHON DEVELOPER Location: Reston,VA Duration: 12+ Months Visa: USC, GC, H1B and EAD Contract Type: W2 Development : * Python Developer with experience in Java as a plus. * Proficient ...

Palnar

Sr. Python Developer

Mclean, VA · On-site

$123K - $166K/yr

Strong Proficiency in Python programming language, including experience with frameworks such as Flask, Django, and Fast API. * Experience with RESTful APIs and microservices architecture, and an ...

Cornerstone Defense

Python Developer

Herndon, VA · On-site

$51.75 - $71.25/hr

Python Developer Location: Herndon, VA Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early ...

Polar IT Services

AWS Python Developer

Reston, VA · On-site +1

$52.25 - $72/hr

AWS Python Developer with AI experience Location: Reston, VA Mode of Work: 3 Days hybrid Top Skills' Details Strong Python and AWS skills Machine Learning, LLM, GenAi experience Needs to be a hands ...

Pyramid Consulting, Inc.

Python Developer

Mclean, VA · On-site

$55 - $60/hr

Immediate need for a talented Python Developer . This is a 06 months contract opportunity with long-term potential and is located in Mclean VA (Onsite) . Please review the below and contact me ASAP ...

Polar IT Services

AWS Python Developer

Reston, VA · Hybrid

$52.25 - $72/hr

AWS Python Developer with AI experience Location: Reston, VA Mode of Work: 3 Days hybrid Top Skills' Details Strong Python and AWS skills Machine Learning, LLM, GenAi experience Needs to be a hands ...

Edge Global

Python Developer with AI/ML

Reston, VA · On-site

$52.25 - $72/hr

Python Developer with AI/ML Location : Reston, VA (Local Only) Duration : Long Term Contract MOI: Video + In-Person Visa: W2 Consultant Only - We are looking for an experienced Python Developer. The ...

SES

Gen AI/Python Developer

Reston, VA · On-site

$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 ...

eSolutionsFirst, LLC

Sr. Python Developer

Mclean, VA · On-site

$51.50 - $71/hr

Python Full Stack Developer Mclean, VA Must Have Qualifications: Must have practical experience with Python, front even technologies, React, JavaScript, and web application development, along with ...

Ekcel Technologies Inc

Sr AWS Python Developer

Reston, VA · On-site

$126K - $170K/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 ...

Navtech, Inc.

Senior Python Developer

Mclean, VA · On-site

$123K - $166K/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 ...

MANTECH

Senior Python Developer

Herndon, VA · On-site

$124K - $168K/yr

MANTECH seeks a driven and mission-focused Senior Python Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

Palnar

Sr. Python Developer

Mclean, VA · On-site

$123K - $166K/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 ...

MANTECH

Senior Python Developer

Herndon, VA

$124K - $168K/yr

MANTECH seeks a driven and mission-focused Senior Python Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

MANTECH

Senior Python Developer

Herndon, VA

$124K - $168K/yr

MANTECH seeks a driven and mission-focused Senior Python Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

MANTECH

Senior Python Developer

Herndon, VA · On-site

$124K - $168K/yr

MANTECH seeks a driven and mission-focused Senior Python Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

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All JobsPython Developer JobsPython Developer Jobs in Leesburg, VA

Python Developer information

See Leesburg, VA salary details

$13

$59

$87

How much do python developer jobs pay per hour?

As of Jul 8, 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 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 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 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.

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 does a Python Developer do?

A Python Developer designs, codes, and maintains software applications using the Python programming language. They often work on web applications, data analysis, automation scripts, and more. Their responsibilities can include writing and testing code, debugging programs, integrating third-party services, and collaborating with other developers and stakeholders. Python Developers are valued for their ability to create efficient, scalable, and readable code. They may also be involved in deploying applications and maintaining technical documentation.
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 July 2026, with employment types broken down into 83% Full Time, 6% Part Time, 1% Temporary, and 10% Contract. Highlights an 84% Physical, 3% Hybrid, and 13% Remote job distribution, with an average salary of $123,332 per year, or $59.3 per hour.

Python Developer

KTS

Reston, VA • On-site

$52.25 - $72/hr

Full-time

Re-posted 6 days ago

Job description

Company Description
KTS (also known as "KOJU") is a woman-owned small business built upon a mind-set of delivering customer-centric solutions. Since our founding in 2009, we provide results that adhere to industry standards as well as ensuring state-of the art solutions that are in line with the growing changes in today's technology. We are committed in providing innovative, practical and top quality results to ensure increased efficiency and a better tomorrow.
Job Description
  • Rresponsible for custom development utilizing Python supporting the end customer for a variety of unique tasks.
  • Your primary focus will be the development of logic both server and client side, to solve problems and create one-off tools.
  • You will also be responsible for integrating the front-end elements into an application; understanding of front-end,backend and middleware technologies is necessary.

Qualifications
  • Expert in Python, with knowledge of at least one Python web framework.
  • Able to integrate multiple data sources and databases into one system (SQL and NO-SQL)
  • Proficient in Windows and Linux environments
  • Good understanding of server-side templating languages
  • Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
  • Understanding of accessibility and security compliance
  • Understanding of fundamental design principles behind a scalable application
  • Familiarity with event-driven programming in Python
  • Able to create database schemas that represent and support business processes
  • Unit test and debugging skills
  • Proficient understanding of code versioning tools such as Subversion/GIT
  • Familiarity with ELK stack
  • Familiarity with running python in various virtual machine architectures
  • 4 year degree, 3+ years experience

Additional Information
CLEARANCE REQUIREMENT: MUST HAVE TS/SCI CI Poly
PLEASE RESPONSE WITH THE FOLLOWING INFORMATION:
  • Work Status:
  • Active DoD Clearance:
  • Current Salary:
  • Desired Salary:

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