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Sr Python Engineer Jobs in Reston, VA (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 ...

Doist

Senior Python Engineer

Arlington, VA · On-site

$118 - $163/hr

Overview As a Senior Consultant at Excella, you will play a key role in delivering high-quality ... Develop and implement software solutions using Python and frameworks like Django, Flask, 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 ...

Blueface Ltd

Sr. Python Engineer, Agentic AI

Washington, DC · On-site

$168.33 - $252.49/hr

Senior Backend Engineering Depth - Extensive experience designing, building, and operating backend systems in Python, including asynchronous frameworks (FastAPI, asyncio) and distributed service ...

New

Comcast

Sr. Python Engineer, Agentic AI

Washington, DC

$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 ...

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 ...

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 ...

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 ...

Mindlance

Sr. Python Developer

Mclean, VA · On-site

$124K - $167K/yr

Looking for a proactive, detail-oriented Senior Python Developer to support enterprise-wide third-party divisional data integration initiative. Responsibilities: * Work closely with Enterprise Third ...

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 ...

Tripoint Solutions

Senior Python Developer

Washington, DC · On-site

$137K - $185K/yr

Tripoint Solutions is seeking an experienced Senior Python Developer to support our federal government contract. This role will focus on developing, maintaining, and improving software solutions that ...

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All JobsSr Python Engineer JobsSr Python Engineer Jobs in Reston, VA

Sr Python Engineer information

See Reston, VA salary details

$23.9K

$145.6K

$210.7K

How much do sr python engineer jobs pay per year?

As of Aug 19, 2026, the average yearly pay for sr python engineer in Reston, VA is $145,620.00, according to ZipRecruiter salary data. Most workers in this role earn between $115,000.00 and $171,100.00 per year, depending on experience, location, and employer.

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 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 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 popular job titles related to Sr Python Engineer jobs in Reston, VA?

For Sr Python Engineer jobs in Reston, VA, the most frequently searched job titles are:

What job categories do people searching Sr Python Engineer jobs in Reston, VA look for?

The top searched job categories for Sr Python Engineer jobs in Reston, VA are:

What cities near Reston, VA are hiring for Sr Python Engineer jobs?

Cities near Reston, VA with the most Sr Python Engineer job openings:

Sr Python Engineer jobs near you
Infographic showing various Sr Python Engineer job openings in Reston, VA as of August 2026, with employment types broken down into 90% Full Time, 4% Part Time, and 6% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $145,620 per year, or $70 per hour.

Senior Python Developer

Maxiom Technology

Washington, DC • On-site

$137K - $185K/yr

Full-time

Re-posted 22 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