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

Mavens Guild

Senior Spark & Python Developer

Mclean, VA · On-site

$122K - $165K/yr

In a senior developer role, you will design and build data flow and data integration processes to ... Drawing from your vast hands-on experience in Python (PySpark), Spark, REST, Java, and Scala, you ...

Doist

Senior Python Engineer

Arlington, VA · On-site

$118 - $163/hr

  • Medical

  • Dental

  • Vision

  • Life

  • PTO

Overview As a Senior Consultant at Excella, you will play a key role in delivering high-quality ... Experience with DevOps tools like Jenkins, GitLab CI/CD, or AWS Lambda. * Familiarity with GenAI ...

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 ...

OpenDataJobs

Senior Developer (Python, AWS)

Washington, DC · Hybrid

$137K - $185K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... developer tooling7+ years of software development experience Bachelor's degree Expert-level command of Python Strong hands-on experience with cloud-native development on Amazon Web Services (AWS ...

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Senior Python Developer information

See Chantilly, VA salary details

$53.7K

$138.7K

$190.5K

How much do senior python developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for senior python developer in Chantilly, VA is $138,723.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,700.00 and $159,800.00 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 Chantilly, VA?

The most popular types of Python Developer jobs in Chantilly, VA are:

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

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

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

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

What cities near Chantilly, VA are hiring for Senior Python Developer jobs?

Cities near Chantilly, VA with the most Senior Python Developer job openings:

Senior Python Developer jobs near you
Infographic showing various Senior Python Developer job openings in Chantilly, VA as of August 2026, with employment types broken down into 1% Internship, 83% Full Time, 10% Part Time, and 6% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $145,355 per year, or $69.9 per hour.

Senior Spark & Python Developer

Mavens Guild

Mclean, VA • On-site

$122K - $165K/yr

Contractor

Re-posted 3 days ago

Job description

What we would like to see:

In a senior developer role, you will design and build data flow and data integration processes to enhance loss prevention technologies for a leading financing firm. Drawing from your vast hands-on experience in Python (PySpark), Spark, REST, Java, and Scala, you will develop, test, and deploy end-to-end solutions using full-stack development tools within AWS (EMR, S3) cloud based infrastructure.

A typical day as a Senior Spark Programmer:
  • Develop fault tolerant, streaming as well as batch data integration processes using Spark/PySpark, Java and performance enhanced SQL
  • Develop and lead development efforts of application programming interfaces to enable integration of fraud detection systems with a host of new reporting and data mining tools
  • Design and develop automation of data flow tasks and end-to-end process testing
  • Design and develop scalable frameworks to ingest, transform, store, and present loss prevention information to downstream systems
  • Implement and lead implementation of Agile best practices and a continuous integration ecosystem
  • Implement and lead implementation efforts of Spark/Python based solution architecture, scalable process frameworks, advanced analytics, and responsive RESTful services
What you will need to bring to the table:
  • 5+ years experience with processing of structured, unstructured and semi-structured data using in-memory cluster computing technologies, specifically with Spark
  • 5+ years experience as a Java programmer
  • 3+ years experience programming in Python (PySpark API)
  • 3+ years experience with cloud services offered through AWE, like EMR, Redshift, or S3
  • 3+ years experience in developing, testing and deploying RESTful APIs for high volume data streams
  • Experience with continuous integration tools like Jenkins
  • Experience working in a distributed computing infrastructure like Hadoop and/or Spark
  • Critical and analytical approach to solving technical problems
  • Excellent interpersonal skills and ability to clearly communicate highly technical concepts to business stakeholders and technical developers alike
Employment Type: CONTRACTOR

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