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Senior Python Developer Jobs in Fairfax, VA (NOW HIRING)

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 ...

Leidos

Senior Python Developer

Chantilly, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Merrifield, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Springfield, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Burke, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Herndon, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Chantilly, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Sterling, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Falls Church, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Chantilly, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Chantilly, VA · On-site

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Manassas, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

Leidos

Senior Python Developer

Reston, VA

$131K - $237K/yr

Four years of experience in a Python Development role * Bachelor's degree in computer science, Software Engineering, Computer Engineering, or related field * Expertise in scripting (Python, shell ...

CGI

Senior Python Developer with Spark

Reston, VA

$126K - $170K/yr

We are seeking a Senior Python Developer with Spark skills to design, build, and optimize large-scale data processing systems in a cloud-native AWS environment. This role focuses heavily on ...

SAIC

Senior Python Engineer

Quantico, VA · On-site

$131K - $176K/yr

The Air Force Space and Intel Business Group of SAIC is seeking a Senior Python Engineer to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in ...

SAIC

Senior Python Engineer

Quantico, VA · On-site +1

$131K - $176K/yr

The Air Force Space and Intel Business Group of SAIC is seeking a Senior Python Engineer to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in ...

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All JobsSenior Python Developer JobsSenior Python Developer Jobs in Fairfax, VA

Senior Python Developer information

See Fairfax, VA salary details

$56.3K

$145.3K

$199.6K

How much do senior python developer jobs pay per year?

As of Jun 21, 2026, the average yearly pay for senior python developer in Fairfax, VA is $145,336.00, according to ZipRecruiter salary data. Most workers in this role earn between $124,400.00 and $167,400.00 per year, depending on experience, location, and employer.

What are the main responsibilities of a Senior Python Developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

What is the difference between Senior Python Developer vs Python Developer?

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

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

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by Senior Python Developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.
What are the most commonly searched types of Python Developer jobs in Fairfax, VA? The most popular types of Python Developer jobs in Fairfax, VA are:
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What cities near Fairfax, VA are hiring for Senior Python Developer jobs? Cities near Fairfax, VA with the most Senior Python Developer job openings:
Senior Python Developer jobs near you
Sr. Python Developer

Sr. Python Developer

eSolutionsFirst, LLC

Mclean, VA • On-site

$51.50 - $71/hr

Other

Posted 13 days ago

Job description

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 the capability to write effective code. Ideal candidates should have 3-7 years of relevant experience.

Job Description:

Role and responsibility:

  • Design, develop and support systems within the financial modeling and research area.
  • Design and develop new code and review existing code changes to ensure standard technology development practices are met.
  • Assist in the operational execution of software solutions to assist with the monitoring and control of market and credit risks.
  • Assist with application development and modifying and/or maintaining applications; Demonstrate knowledge of development tools and languages.
  • Assist other areas of financial research and engineering when defining requirements for systems applications. Other duties as assigned.

Minimum Requirements:

Master s degree or foreign equivalent degree in Computer Science, Software Engineering or related technical field and 2 years of experience developing analytics software applications, OR

Bachelor s degree or foreign equivalent degree in Computer Science, Software Engineering or related technical field and five years of experience developing analytics software applications,

Demonstrated knowledge of:

  • Python, Python web technologies, e.g. Flask, Dash
  • Python data processing technologies, e.g. Pandas, Numpy
  • Solid understanding on web applications, e.g. HTML, CSS, Javascript
  • Solid understanding on DB and SQL
  • Linux/Unix OS

Preferred experience:

  • Javascript framework: jQuery, data table, react
  • front-end design, CSS, tailwind
  • cloud technology, Google Kubeflow, AWS
  • Mortgage or GSE experience
  • R, Java, C, C++, SAS

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