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

Sr AWS Python Developer

Reston, VA · On-site

$126K - $170K/yr

Sr AWS Python Developer (2 positions) Location- Reston, VA (In person Client interview) day one onsite Experience : 8 to 18 years FTE or C2C We are looking for Visa independent candidates only for ...

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 ...

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 ...

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 ...

Python Engineer, Agentic AI

Washington, DC · On-site +1

$142K - $213K/yr

You will work closely with senior engineers and product partners to design, develop, test, and ... Write clean, well-structured, and maintainable Python code that follows established coding ...

Python Engineer, Agentic AI

Washington, DC · On-site +1

$142K - $213K/yr

You will work closely with senior engineers and product partners to design, develop, test, and ... Write clean, well-structured, and maintainable Python code that follows established coding ...

Python, Java, Spark, SQL, Databricks, RESTful APIs, AWS Glue, ECS S3 The role is to continue to build our real time decisioning system for credit card transactions. This work involves building ...

Showing results 41-60

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 11, 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:
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.

Senior Web Application / Python Developer - DoD Program, Fort Belvior, VA

inventium.io LLC

Springfield, VA • On-site

$127K - $171K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 14 days ago


Job description

Salary:

This is a Senior Web Application / Python Developer position for supporting a DoD program located in Fort Belvior, Virginia.


Overview:

We are seeking a Senior Python Developer to join our dedicated technical team in safeguarding those who serve against criminal, terrorism, and emerging threats. If you have a passion for analytics and innovation, you'll find a dynamic and collaborative culture here where your work has a direct impact on our operations. A DoD Secret clearance is required to start.

As a key member of our high-achieving team, you'll design and deliver high-quality technical solutions in Python. You'll maintain functional and technical knowledge of our mission systems, focusing on leveraging technology to support business objectives. Your role involves identifying technical challenges and opportunities for efficiency, offering insights through system design, and providing technical perspectives for configuration. This role is both challenging and rewarding, offering a chance to make a significant difference.


Your Impact:

  • Independently work on the development and data migration of several legacy ColdFusion/Oracle DB software application to a modern Python-based system architecture.
  • Work onsite at the customers location in Fort Belvior, VA, engaging directly with customers of varying technical backgrounds.
  • Handle a broad range of duties, from gathering and refining requirements to developing, testing, and supporting the deployment of the resultant code.
  • Juggle multiple tasks, manage deadlines, and work independently and efficiently.
  • On a typical day, focus on new features or enhancements and data migration, with occasional troubleshooting of end-user issues and support for recently deployed features.


Qualifications:

  • Active DoD Clearance
  • 5+ years of experience in developing web applications using Python and Python frameworks (e.g., Django, Flask).
  • Proficiency in front-end web development (HTML, CSS, JavaScript, modern JS frameworks).
  • 5+ years of experience with SQL (e.g., Oracle, PostgreSQL, MySQL) including queries, stored procedures, triggers, tuning, and database design.
  • Experience in migrating data and systems from ColdFusion to a Python-based environment.
  • Familiarity with version control systems, preferably Git.
  • Ability to quickly learn and work with legacy code, identify solutions, and discuss with clients as necessary.
  • Strong attention to detail with excellent written and verbal communication skills.
  • Experience in creating user-friendly and intuitive software.
  • Capability to work collaboratively with clients to understand business requirements and propose solutions.

This position offers a unique opportunity to contribute to a vital mission and work with advanced technologies in a supportive environment. If you're ready to make a significant impact, we'd love to have you on our team.


About Inventium.io:

Inventium.io LLC is a technical consulting and software development services company dedicated to protecting and advancing our national defense and scientific capabilities. Based out of the Washington DC area, we rely on innovation to continually advance our employees' skills and provide digital transformation solutions to our customers.

With proven records of successfully delivering quality services and solutions to multiple federal agencies, our technical competencies include Emerging Technology Solutions, DevSecOps, Cloud Migration, Machine Learning, System Modernization, and Technology Management.


Benefits and Perks

  • Employer paid Health Benefits (Medical, Dental and Vision)
  • Retirement Plan
  • Paid Time Off and Federal Holidays
  • Training and Development
  • Awards and Recognition
  • Employee Referral Program


Inventium.io is committed to creating a diverse environment and is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.