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Senior Python Engineer Jobs in Alexandria, VA (NOW HIRING)

Amiseq Inc.

Python Developer

Mclean, VA · On-site

$51.50 - $71/hr

We are seeking an experienced Senior Python Developer to join our team. The ideal candidate will have a strong background in Python development, PostgreSQL, Flask or FastAPI, and data transformation ...

MOONITSolutions Inc.

Senior Python Developer

Mclean, VA · On-site

$124K - $167K/yr

Job Summary 5+ years of engineering experience with at least 2 years of recent Python experience, specializing in heavy data applications. Demonstrates strong data integrity skills and proficiency in ...

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 ...

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 · 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

Burke, 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 ...

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 ...

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 ...

Nastech Global

Senior AI/ML/Python Engineer

Reston, VA · On-site

Job Title: Senior AI/ML/Python Engineer Location: Onsite in Reston, VA - 3 days a week Job Type: Contract Top Skills Details 7-10 years of experience working as a Python/ML Engineer with strong ...

Leidos

Senior Python Developer

Reston, 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 ...

Mindlance

Senior Python Developer

Mclean, VA · On-site

$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 ...

Leidos

Senior Python Developer

Springfield, 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 · 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

Herndon, 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

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

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 ...

Noblis

Senior Python Developer

Chantilly, VA · On-site

$124K - $167K/yr

... engineer building and extending Python-based front-end and back-end capabilities that process diverse data formats encountered during forensic investigations. Work is priority-driven based on ...

Leidos

Senior Python Developer

Falls Church, 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 ...

WorkNova LLC

Python Developer

Reston, VA · On-site

$52.25 - $72/hr

Position Summary The Senior Python Developer will design, develop, test, and implement cloud native applications, data pipelines, and backend services within AWS. The role requires strong Python ...

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Showing results 21-40

All JobsPython Engineer JobsSenior Python Engineer JobsSenior Python Engineer Jobs in Alexandria, VA

Senior Python Engineer information

See Alexandria, VA salary details

$58.9K

$152K

$208.7K

How much do senior python engineer jobs pay per year?

As of Aug 10, 2026, the average yearly pay for senior python engineer in Alexandria, VA is $151,958.00, according to ZipRecruiter salary data. Most workers in this role earn between $130,000.00 and $175,000.00 per year, depending on experience, location, and employer.

Are senior Python engineers in demand?

Senior Python engineers are highly in demand due to the language's widespread use in web development, data analysis, machine learning, and automation. Companies seek experienced developers with strong problem-solving skills and knowledge of frameworks like Django or Flask, making this a competitive and growing field.

What are the key skills and qualifications needed to thrive as a senior Python engineer, and why are they important?

To thrive as a Senior Python Engineer, you need expert knowledge of Python programming, software architecture, and experience with web frameworks, supported by a degree in computer science or related field. Familiarity with tools like Django, Flask, REST APIs, Docker, and version control systems such as Git is typically required, along with possible certifications in cloud technologies or Python itself. Strong problem-solving abilities, leadership, and effective communication skills help you lead teams and collaborate across departments. These skills ensure robust, scalable software solutions and foster innovation and efficiency within development projects.

What does a senior Python engineer do?

A Senior Python Engineer is an experienced software developer who specializes in designing, developing, and maintaining applications using the Python programming language. They often take on leadership roles within development teams, contribute to architectural decisions, and mentor junior engineers. Senior Python Engineers work on complex projects, ensure code quality, and help implement best practices to improve efficiency and reliability. Their work may span back-end development, data engineering, automation, and integrating with other technologies.

What are the common challenges senior Python engineers face when leading projects, and how can they effectively address them?

Senior Python Engineers often encounter challenges such as balancing hands-on coding with overseeing project architecture, mentoring junior developers, and ensuring code quality across the team. Effectively addressing these challenges involves strong communication, setting clear coding standards, and fostering a collaborative environment through regular code reviews and knowledge-sharing sessions. Staying updated on best practices and leveraging automation tools for testing and deployment can also help streamline workflows and maintain high-quality deliverables.
What job categories do people searching Senior Python Engineer jobs in Alexandria, VA look for? The top searched job categories for Senior Python Engineer jobs in Alexandria, VA are:
What cities near Alexandria, VA are hiring for Senior Python Engineer jobs? Cities near Alexandria, VA with the most Senior Python Engineer job openings:
Senior Python Engineer jobs near you
Infographic showing various Senior Python Engineer job openings in Alexandria, 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 $151,958 per year, or $73.1 per hour.

Python Developer

Amiseq Inc.

Mclean, VA • On-site

$51.50 - $71/hr

Other

Posted 7 days ago

Job description

We are seeking an experienced Senior Python Developer to join our team. The ideal candidate will have a strong background in Python development, PostgreSQL, Flask or FastAPI, and data transformation using modern data-processing frameworks. You will be responsible for designing, developing, and maintaining data-intensive applications and ETL pipelines. Experience with Informatica and scalable data transformation approaches is preferred.
 
Responsibilities 
• Design, build, and maintain scalable Python applications for data processing and analytics.
• Develop RESTful APIs using Flask or FastAPI.
• Implement and optimize complex SQL queries and database structures in PostgreSQL.
• Architect and maintain ETL pipelines using Informatica, ensuring data quality and integrity.
• Work with large datasets, ensuring efficient data ingestion, transformation, and storage.
• Develop and optimize data transformation workflows using PySpark.
• Collaborate with cross-functional teams to define technical requirements and deliver solutions.
• Troubleshoot and resolve issues in production environments.
• Mentor junior developers and contribute to best practices.
 
Requirements 
• Bachelor''s degree in Computer Science, Engineering, or related field (or equivalent experience).
• 5+ years of professional experience as a Python developer.
• 3+ years of experience with PostgreSQL, including database design and performance tuning.
• 3+ years of experience developing APIs with Flask or FastAPI.
• Proven experience working with large datasets and data-intensive applications.
• Experience integrating AI or machine learning models into data pipelines or applications.
• Familiarity with Python-based machine learning libraries such as scikit-learn, TensorFlow, or PyTorch.
• 2+ years of experience with data transformation using PySpark, Dask, Polars, etc.
• Strong understanding of data modeling, data warehousing, and data integration concepts.
• Experience with version control systems (e.g., Git).
• Excellent problem-solving skills and attention to detail.
• Strong communication and teamwork abilities.
Preferred Qualifications 
• Hands-on experience with Informatica and ETL processes.
• Experience with cloud platforms.
• Familiarity with containerization (Docker, Kubernetes).
• Knowledge of data visualization tools and techniques.

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