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Sr Python Developer Jobs in Washington (NOW HIRING)

Mindlance

Senior Python Developer

Mclean, VA

$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 ...

eSolutionsFirst, LLC

Sr. Python Developer

Mclean, VA

$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

Columbia, MD

$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

Columbia, MD

$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 ...

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Sr Python Developer information

See Washington salary details

$62.3K

$160.8K

$220.9K

How much do sr python developer jobs pay per year?

As of Jun 19, 2026, the average yearly pay for sr python developer in Washington is $160,801.00, according to ZipRecruiter salary data. Most workers in this role earn between $137,600.00 and $185,200.00 per year, depending on experience, location, and employer.

What are the typical daily responsibilities of a Sr Python Developer?

As a Sr Python Developer, your daily tasks often include designing and coding complex features, reviewing code from team members, and troubleshooting bugs or performance issues. You may also lead technical discussions, contribute to architectural decisions, and collaborate closely with product managers, QA engineers, and other developers. Mentoring junior team members and staying up to date with best practices or new technologies is also a regular part of the role. This combination of hands-on engineering and leadership responsibilities ensures both the quality of the codebase and the continual growth of the team.

What are the key skills and qualifications needed to thrive in the Sr Python Developer position, and why are they important?

To thrive as a Sr Python Developer, you need expert proficiency in Python programming, strong problem-solving skills, and a solid background in computer science or related fields, often demonstrated by several years of relevant experience. Familiarity with frameworks like Django or Flask, version control systems such as Git, and sometimes certifications such as PCEP or PCAP are typically valued. Strong communication, leadership, and the ability to mentor junior developers are standout soft skills for this position. These combined proficiencies ensure that Sr Python Developers can build robust solutions, contribute to architectural decisions, and drive team success in complex technical environments.

What is a Sr Python Developer job?

A Sr Python Developer is an experienced software engineer who specializes in designing, developing, and maintaining applications using Python. They are responsible for writing clean, efficient, and scalable code while also mentoring junior developers and collaborating with cross-functional teams. Their role often includes optimizing application performance, integrating third-party services, and ensuring best coding practices. Additionally, they may work with frameworks like Django or Flask and databases such as PostgreSQL or MongoDB to build robust backend systems.

What are popular job titles related to Sr Python Developer jobs in Washington? For Sr Python Developer jobs in Washington, the most frequently searched job titles are:
What job categories do people searching Sr Python Developer jobs in Washington look for? The top searched job categories for Sr Python Developer jobs in Washington are:
What cities in Washington are hiring for Sr Python Developer jobs? Cities in Washington with the most Sr Python Developer job openings:
Sr Python Developer jobs near you
Infographic showing various Sr Python Developer job openings in Washington as of June 2026, with employment types broken down into 94% Full Time, 2% Part Time, and 4% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $160,801 per year, or $77.3 per hour.
Senior Python Developer

Senior Python Developer

Mindlance

Mclean, VA

$124K - $167K/yr

Other

Posted 29 days 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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