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Sr Python Developer Jobs in Washington, DC (NOW HIRING)

Maxiom Technology

Senior Python Developer

Washington, DC

$137K - $185K/yr

We are looking for a Senior Python Developer to join our software development team. Senior Python Developer responsibilities include participating in the entire software development lifecycle ...

Mindlance

Senior Python Developer

Mclean, VA · On-site

$124K - $167K/yr

Senior Python Developer Location: 6 Months Duration: Mclean, VA 22102 Fully Onsite: M-F Must Have Qualifications: * Strong Python Developer with strong experience in Python development, SQL, and ...

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 ...

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 ...

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 ...

Interon IT Solutions

Python Developer

Reston, VA · On-site

$52.25 - $72/hr

Senior Python Developer - with Container (EKS) & AWS experience Client: Fannie Mae Location: Reston VA - In person interviews so need Local In EAST coast only Long Term This is for a Senior Python ...

Pull Skill Technologies

Senior Python Developer

Mclean, VA · On-site

$124K - $167K/yr

Senior Python Developer Location: McLean VA pre-submit tech screen + interview in person Duration: 6 Months 2 Openings Shortlisting deadline on June 6th 2 rounds of interviews with 1 being on-site ...

ManTech International

Senior Python Developer

Herndon, VA · On-site

$141K - $236K/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 ...

Saransh Inc

Sr. Python Developer with Spark and AWS

Mclean, VA · On-site

$122K - $165K/yr

Role: Sr. Python Developer Location: McLean, VA (Hybrid - 3 days a week onsite) Job Type: Contract Required Skills: Python, Spark, AWS (S3, Lambda, IAM, SG etc.), AWS IAM Idaas Qualifications: * Min ...

ManTech

Senior Python Developer

Herndon, VA · Remote

$141K - $236K/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 ...

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 ...

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 ...

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 ...

Leidos

Senior Python Developer

Columbia, MD · 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 ...

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 ...

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All JobsSr Python Developer JobsSr Python Developer Jobs in Washington, DC

Sr Python Developer information

See Washington, DC salary details

$62.1K

$160.2K

$220K

How much do sr python developer jobs pay per year?

As of Jul 9, 2026, the average yearly pay for sr python developer in Washington, DC is $160,198.00, according to ZipRecruiter salary data. Most workers in this role earn between $137,100.00 and $184,500.00 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, DC? For Sr Python Developer jobs in Washington, DC, the most frequently searched job titles are:
What job categories do people searching Sr Python Developer jobs in Washington, DC look for? The top searched job categories for Sr Python Developer jobs in Washington, DC are:
Sr Python Developer jobs near you
Infographic showing various Sr Python Developer job openings in Washington, DC as of July 2026, with employment types broken down into 24% Full Time, and 76% Contract. Highlights an 91% In-person, and 9% Remote job distribution, with an average salary of $160,198 per year, or $77 per hour.
Senior Python Developer

Senior Python Developer

Maxiom Technology

Washington, DC

$137K - $185K/yr

Full-time

Re-posted 11 days ago

Job description

We are looking for a Senior Python Developer to join our software development team.

Senior Python Developer responsibilities include participating in the entire software development lifecycle, debugging applications and configuring existing systems. If you’re equally happy to roll up your sleeves to write code and review other team members’ work, we’d like to meet you.

You’ll use your expertise in Python to help us deploy high-quality applications for our clients.

Responsibilities

  • Analyze system requirements and prioritize tasks
  • Write clean, testable code using Python
  • Develop technical specifications and architecture
  • Test and debug various Python applications
  • Review and refactor code
  • Deploy fully functional applications
  • Upgrade existing programs
  • Support junior developers’ work
  • Document development and operational procedures

Requirements

  • Work experience as a Python Developer - minimum 5 years.
  • Proficiency in building web-based applications
  • In-depth knowledge of at least one Python framework
  • Familiarity with agile environments
  • Troubleshooting abilities
  • Good communication skills
  • BSc in Computer Science, Engineering or relevant field