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Sr Python Engineer Jobs in Washington (NOW HIRING)

Maxiom Technology

Senior Python Developer

Washington, DC · On-site

$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 ...

eSolutionsFirst

Senior Python Developer

Mclean, VA · On-site

$123K - $165K/yr

Job Summary : eSolutionsFirst is seeking a Senior Python Developer to support the development of mission-critical applications built on modern software development frameworks. The selected candidate ...

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 ...

Comcast

Sr. Python Engineer, Agentic AI

Washington, DC · On-site

$168K - $252K/yr

What We're Looking For Senior Backend Engineering Depth Extensive experience designing, building, and operating backend systems in Python, including asynchronous frameworks (FastAPI, asyncio) and ...

CGI Inc.

Senior Python Developer with Spark

Reston, VA · On-site

$126K - $170K/yr

Senior Python Developer with Spark Category: Project Management Main location: United States, Virginia, Reston Position ID:J0726-1188 Employment Type: Full Time U.S. - Technology as a force for good ...

InterImage

Senior Python Developer

Laurel, MD · On-site

$120K - $162K/yr

Senior Python Developer Your Main Objective: Develop analytics for Customized and Do-it-Yourself (DIY) analytic tools based on customer action. Ability to partner with tool developers, mission leads ...

Comcast

Sr. Python Engineer, Agentic AI

Washington, DC · On-site

What We're Looking For Senior Backend Engineering Depth Extensive experience designing, building, and operating backend systems in Python, including asynchronous frameworks (FastAPI, asyncio) and ...

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 ...

TiltEdge Solutions LLC

Python Developer

West Mclean, VA · On-site

$65 - $70/hr

Senior Python Developer Location: Full-time on-site in McLean, VA Position: C2H Green Card or USC Local Candidates Only F2F In person Interview Must-Have Qualifications 5+ years of engineering ...

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 ...

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 ...

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All JobsSr Python Engineer JobsSr Python Engineer Jobs in Washington

Sr Python Engineer information

What does a Sr Python Engineer do?

A Sr Python Engineer is an experienced software developer who specializes in designing, developing, and maintaining applications using the Python programming language. They often lead projects, mentor junior engineers, and work on complex problems that require deep technical expertise. Their responsibilities may include writing efficient code, optimizing performance, integrating with APIs or databases, and ensuring the overall quality of software solutions. Additionally, they may collaborate with cross-functional teams to deliver robust and scalable applications.

What are the key skills and qualifications needed to thrive as a Sr Python Engineer?

To thrive as a Sr Python Engineer, you need advanced proficiency in Python programming, strong knowledge of software design patterns, and experience with scalable application development, often supported by a degree in computer science or related field. Familiarity with frameworks like Django or Flask, version control systems such as Git, and cloud platforms like AWS or Azure is typically required, with certifications in cloud or Python development considered a plus. Excellent problem-solving abilities, strong communication, and leadership skills help you collaborate effectively and mentor junior engineers. These competencies are critical for delivering robust, efficient solutions and driving technical excellence within development teams.

What is the difference between Sr Python Engineer vs Python Developer?

AspectSr Python EngineerPython Developer
Required CredentialsBachelor's degree in CS or related field, experience in Python, often some leadership skillsBachelor's degree in CS or related field, strong Python skills, often less emphasis on leadership
Work EnvironmentTeam lead, project architect, involved in system design and optimizationCode writing, feature development, bug fixing
Employer & Industry UsageTech companies, startups, enterprise softwareWeb development, data analysis, automation projects

While both roles require strong Python skills, Sr Python Engineers typically have more experience, leadership responsibilities, and involvement in system architecture, whereas Python Developers focus more on coding and feature implementation.

What are some common challenges Sr Python Engineers face when working on large-scale applications?

Sr Python Engineers often encounter challenges related to maintaining code quality and scalability as applications grow. Managing dependencies, ensuring optimal performance, and coordinating with cross-functional teams can be complex, especially in distributed systems. Additionally, integrating new technologies or frameworks while maintaining backward compatibility requires careful planning and communication. Proactive code reviews, clear documentation, and collaborative problem-solving are essential to overcoming these challenges.
What are popular job titles related to Sr Python Engineer jobs in Washington? For Sr Python Engineer jobs in Washington, the most frequently searched job titles are:
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What cities in Washington are hiring for Sr Python Engineer jobs? Cities in Washington with the most Sr Python Engineer job openings:
Sr Python Engineer jobs near you
Infographic showing various Sr Python Engineer job openings in Washington as of August 2026, with employment types broken down into 89% Full Time, 6% Part Time, and 5% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution.

Senior Python Developer

Maxiom Technology

Washington, DC • On-site

$137K - $185K/yr

Full-time

Re-posted 14 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