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

Mindlance

Senior Python Developer

Mclean, VA · On-site

$124K - $167K/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 ...

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

Burke, VA · On-site

$131K - $237K/yr

  • Medical

  • Retirement

  • PTO

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 · On-site

$131K - $237K/yr

  • Medical

  • Retirement

  • PTO

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

  • Medical

  • Retirement

  • PTO

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 · On-site

$131K - $237K/yr

  • Medical

  • Retirement

  • PTO

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 ...

Noblis

Senior Python Developer

Chantilly, VA · On-site

$124K - $167K/yr

  • Medical

  • Life

  • Retirement

  • PTO

The developer will function as a full-stack engineer building and extending Python-based front-end and back-end capabilities that process diverse data formats encountered during forensic ...

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

Falls Church, VA · On-site

$131K - $237K/yr

  • Medical

  • Retirement

  • PTO

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 ...

Noblis

Senior Python Developer

Chantilly, VA · On-site

$124K - $167K/yr

  • Medical

  • Life

  • Retirement

  • PTO

The developer will function as a full-stack engineer building and extending Python-based front-end and back-end capabilities that process diverse data formats encountered during forensic ...

WorkNova LLC

Python Developer

Reston, VA · On-site

$52.25 - $72/hr

Position Summary The Senior Python Developer will design, develop, test, and implement cloud native applications, data pipelines, and backend services within AWS. The role requires strong Python ...

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Showing results 21-40

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

Senior Python Developer information

See Fairfax, VA salary details

$56.7K

$146.3K

$201K

How much do senior python developer jobs pay per year?

As of Aug 19, 2026, the average yearly pay for senior python developer in Fairfax, VA is $146,309.00, according to ZipRecruiter salary data. Most workers in this role earn between $125,200.00 and $168,500.00 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 are the key skills and qualifications needed to thrive as a senior Python developer?

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 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.

Are senior Python developers still in demand?

Senior Python developers remain in high demand due to the language's versatility in web development, data analysis, machine learning, and automation. Companies seek experienced developers with skills in frameworks like Django or Flask, and proficiency in cloud platforms and APIs enhances job prospects.

How much does a senior Python developer make?

A senior Python developer typically earns between $100,000 and $150,000 annually, depending on experience, location, and industry. They often possess strong skills in frameworks like Django or Flask and may hold certifications or advanced degrees that influence salary levels.

What does a senior Python developer do?

A senior Python developer designs, develops, and maintains complex software applications using Python. They often lead projects, review code, optimize performance, and collaborate with cross-functional teams, requiring strong problem-solving skills and knowledge of frameworks like Django or Flask. Additionally, they may mentor junior developers and ensure code quality through testing and best practices.

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:

What are popular job titles related to Senior Python Developer jobs in Fairfax, VA?

For Senior Python Developer jobs in Fairfax, VA, the most frequently searched job titles are:

What job categories do people searching Senior Python Developer jobs in Fairfax, VA look for?

The top searched job categories for Senior Python Developer jobs in Fairfax, VA are:

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
Infographic showing various Senior Python Developer job openings in Fairfax, VA as of August 2026, with employment types broken down into 1% Internship, 86% Full Time, 7% Part Time, and 6% Contract. Highlights an 79% Physical, 6% Hybrid, and 15% Remote job distribution, with an average salary of $146,309 per year, or $70.3 per hour.

Senior Python Developer

Mindlance

Mclean, VA • On-site

$124K - $167K/yr

Other

Re-posted 7 hours ago

Job description

Detailed Job Description:

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 improve maintainability, performance, and scalability.
  • Perform end to end testing to verify accuracy of all layers and perform parallel testing to ensure data integrity of the new system.
  • Establish metrics and monitoring systems to evaluate the effectiveness of the implemented solutions.
  • Diagnose and resolve defects, eliminate technical debt in new solution, and drive continuous improvements to ensure alignment with software engineering best practices.
  • Write clean, robust, high-quality code following best practices, supported by automated unit and integration tests with strong coverage.
  • Coordinate with team members across different layers of the stack (data, services, APIs, and infrastructure) to deliver end-to-end solutions.
  • Assist with infrastructure upgrades, platform migrations, and adoption of new technologies to improve reliability, security, and operational efficiency.
  • Contribute to design discussions, code reviews, and documentation; demonstrate a commitment to collaborative problem-solving, thoughtful design, and high-quality deliverables.
  • Document findings and outcomes to build a knowledge base for future reference.

Qualifications:

  • Hands-on software development experience using Python programming
  • Candidate should be skilled in pandas and numpy Python libraries.
  • 2 3 years of experience using Git for source control in a team-based development environment.
  • 2 3 years of experience with SQL and relational database development.
  • 1 2 years of experience with containerization and orchestration technologies (e.g.Docker, Podman, Kubernetes).
  • 2 3 years of experience with unit testing frameworks (e.g., Pytest) and implementing automated test coverage.
  • Good oral, written communication skills and team collaboration skills.
  • Strong critical thinking, problem-solving skills, and familiarity with Agile development processes.

Preferred Skills:

  • Graduate degree in Information Technology, Computer Science, or related field.
  • Experience engaging with team members to gather requirements, align priorities, and drive delivery without missing delivery.
  • Exposure to product and project management tools (e.g., JIRA) to support planning, tracking, and execution.
  • Relevant technical certifications.

Mindlance is an Equal Opportunity Employer and does not discriminate in employment on the basis of Minority/Gender/Disability/Religion/LGBTQI/Age/Veterans.

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About Mindlance

Sourced by ZipRecruiter

Mindlance is a multinational staffing and services firm based in the Greater NYC area. We have 14 offices across the United States, Canada, and India. We match talented people to Fortune 500 and Fortune 1000 companies across industries. We have been in business since 1999 and are recognized by Staffing Industry Analysts (SIA) as one of the fastest-growing U.S. staffing firms. Our rapid growth means more jobs, more projects, and more opportunities for you. Our core philosophy means that you work with an organization that truly values and recognizes you.

Industry

Recruiting and staffing services

Company size

1,001 - 5,000 Employees

Headquarters location

Union, NJ, US

Year founded

1999

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