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Senior Python Software Engineer Jobs in Virginia

ManTech

CNO Python Software Engineer

Hanover, VA · On-site

$114K - $190K/yr

MANTECH seeks a skilled and mission-focused CNO Python Software Engineer to join our team in Hanover, MD.In this role you will be providing specialized testing and evaluation capabilities tailored to ...

ManTech

CNO Python Software Engineer

Hanover, VA · On-site

$114K - $190K/yr

MANTECH seeks a skilled and mission-focused CNO Python Software Engineer to join our team in Hanover, MD.In this role you will be providing specialized testing and evaluation capabilities tailored to ...

NT Concepts

Python Developer

Chantilly, VA · On-site +1

$51.50 - $71/hr

The Senior Python Developer will be responsible for the following: * Support design, development, implementation and maintenance recommendations for software systems * Design, develop, test, debug ...

ManTech

Python Software Developer

Herndon, VA · Remote

$114K - $190K/yr

MANTECH seeks a driven and mission-focused Python Software Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

ManTech

Python Software Developer

Herndon, VA · Remote

$141K - $236K/yr

MANTECH seeks a driven and mission-focused Python Software Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

NT Concepts

Python Developer

Chantilly, VA · On-site

$120K - $180K/yr

The Senior Python Developer will be responsible for the following: * Support design, development, implementation and maintenance recommendations for software systems * Design, develop, test, debug ...

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 ...

Ampcus Inc

Sr. Python Developer

Richmond, VA · On-site

$118K - $160K/yr

They are in search of a highly motivated Sr. Python Developer who will be involved in design, development, and documentation related work, with a strong focus on Python Development and AWS services.

eSolutionsFirst, LLC

Sr. Python Developer

Mclean, VA · On-site

$51.50 - $71/hr

Master s degree or foreign equivalent degree in Computer Science, Software Engineering or related ... Python, Python web technologies, e.g. Flask, Dash * Python data processing technologies, e.g.

Palnar

Sr. Python Developer

Mclean, VA · On-site

$123K - $166K/yr

Design, develop and support software solution for the given requirements within the financial ... Engineering or related technical field Demonstrated knowledge of: * Python, Pandas and other ...

Babel Street

Software Engineer III

Reston, VA · On-site

We are looking for a Senior Python Engineer with a "hacker" mindset to join our team as a Software Engineer III. This role is dedicated to large-scale web scraping and data harvesting. If you have ...

Babel Street

Software Engineer III

Reston, VA · On-site +1

We are looking for a Senior Python Engineer with a "hacker" mindset to join our team as a Software Engineer III. This role is dedicated to large-scale web scraping and data harvesting. If you have ...

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All JobsPython Software Engineer JobsSenior Python Software Engineer JobsSenior Python Software Engineer Jobs in Virginia

Senior Python Software Engineer information

See Virginia salary details

$54.5K

$140.8K

$193.3K

How much do senior python software engineer jobs pay per year?

As of Aug 31, 2026, the average yearly pay for senior python software engineer in Virginia is $140,758.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,500.00 and $162,100.00 per year, depending on experience, location, and employer.

What does a senior Python software engineer do?

A Senior Python Software Engineer designs, develops, tests, and maintains complex software applications using the Python programming language. They often lead or mentor junior developers, architect software solutions, and ensure best coding practices are followed. These professionals collaborate with cross-functional teams to deliver scalable and efficient systems, troubleshoot issues, and optimize application performance. Their expertise includes advanced knowledge of Python frameworks, libraries, and development tools, as well as experience with databases, APIs, and cloud services.

What are the key skills and qualifications needed to thrive as a senior Python software engineer?

To thrive as a Senior Python Software Engineer, you need advanced proficiency in Python programming, strong problem-solving abilities, and a solid background in computer science or a related field. Familiarity with frameworks like Django or Flask, experience with version control systems such as Git, and knowledge of cloud platforms and CI/CD tools are typically required. Leadership, effective communication, and mentorship skills help you collaborate with teams and guide junior developers. These skills ensure the delivery of robust, scalable software solutions and foster a productive, innovative development environment.

What are some common challenges faced by senior Python software engineers when leading complex projects, and how can they be addressed?

Senior Python Software Engineers often face challenges such as balancing hands-on coding with mentoring junior team members, managing technical debt, and designing scalable solutions. Successfully addressing these challenges involves clear communication, proactive code reviews, and effective prioritization of tasks. Collaborating closely with cross-functional teams and fostering a culture of knowledge sharing can also help ensure project success and team growth.

What is the difference between Senior Python Software Engineer vs Python Developer?

AspectSenior Python Software EngineerPython Developer
Required CredentialsBachelor's degree in CS or related field, experience in software engineeringBachelor's degree in CS or related field, coding proficiency
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing applications, debugging
Employer & Industry UsageTech companies, startups, enterprise softwareWeb development, data analysis, automation projects
Common Search & Comparison IntentUnderstanding senior-level roles, responsibilities, and skillsEntry to mid-level coding roles, project involvement

The main difference between a Senior Python Software Engineer and a Python Developer lies in experience, responsibilities, and scope. Senior engineers typically lead projects, design system architecture, and mentor junior staff, while Python Developers focus on coding, application development, and implementation. Both roles require strong Python skills and relevant credentials, but senior roles demand more experience and leadership capabilities.

Which senior Python software engineer job is in demand?

Senior Python software engineering roles are in high demand across industries such as technology, finance, and healthcare, especially for positions involving data analysis, machine learning, and web development. Skills in frameworks like Django or Flask, along with experience in cloud platforms and version control, enhance job prospects in this field.

What are popular job titles related to Senior Python Software Engineer jobs in Virginia?

For Senior Python Software Engineer jobs in Virginia, the most frequently searched job titles are:

What job categories do people searching Senior Python Software Engineer jobs in Virginia look for?

The top searched job categories for Senior Python Software Engineer jobs in Virginia are:

What cities in Virginia are hiring for Senior Python Software Engineer jobs?

Cities in Virginia with the most Senior Python Software Engineer job openings:

Senior Python Software Engineer jobs near you
Infographic showing various Senior Python Software Engineer job openings in Virginia as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 11% Part Time, and 4% Contract. Highlights an 88% Physical, 4% Hybrid, and 8% Remote job distribution, with an average salary of $140,758 per year, or $67.7 per hour.

Python Software Engineer - Mid & Senior Levels (TS/SCI w/ Poly)

Chantilly, VA

JTEC Consulting
See more jobs at JTEC Consultingexternal

$160K - $180K/yr

Full-time

Posted yesterday

New

Job description

Python Software Engineer – Mid amp; Senior Levels (TS/SCI w/ Poly)
Chantilly, VA 20151
JTEC Consulting LLC focuses on successfully delivering solutions to meet our clients’ most critical needs. Our founding members have decades of experience delivering a wide range of solutions to Air Force and DOD clients. We are a Veteran-Owned Small Business.

Security Clearance Requirement: Current TS/SCI with polygraph
Location Note: 100% On-Site
Relocation: Relo support for candidates outside the commuting area will be considered

Position Description:

JTEC Consulting is actively hiring Mid-Level and Senior Python Software Engineers to join a specialized team developing and deploying high-impact data systems across classified federal environments in Chantilly, VA.

In this role, you will design, build, and deploy containerized microservices and backend APIs in an AWS cloud infrastructure supporting multiple active task orders across data science and software engineering initiatives. In this role you will work within an agile team of developers, data scientists, and mission experts to solve complex, data-heavy challenges.

Core Responsibilities:
  • Backend amp; API Development: Design, build, and maintain scalable backend microservices and APIs using Python and FastAPI.
  • Cloud Infrastructure amp; Deployment: Deploy, manage, and scale microservices within secure cloud environments (AWS C2S) using Kubernetes, Docker, and Helm.
  • Data Integration amp; Search: Build and optimize data pipelines and search capabilities across large-scale structured and unstructured datasets using SQLAlchemy, OpenSearch/Elasticsearch, and PySpark.
  • CI/CD amp; DevOps Automation: Automate software testing, integration, and deployment using Jenkins, Git/GitHub, and shell scripting.
  • Agile Collaboration: Participate in end-to-end agile development sprints, conduct peer code reviews, and align engineering practices with security guidelines (ISSM/IA).
Education and Qualifications:
  • U.S. citizenship
  • Current TS/SCI with polygraph required for consideration
  • Bachelor’s degree in Computer Science, Information Systems, or a related technical discipline (equivalent years of direct experience considered in lieu of a degree).
  • Experience Level:
    • Mid-Level: 5+ years of software development experience with a focus on Python.
    • Senior Level: 8+ years of software development experience with advanced architectural design experience.
  • Core Tech Stack:
    • Modern Python development (FastAPI, Flask, or similar REST frameworks).
    • Relational amp; Object-Relational Mapping tools (e.g., SQLAlchemy, SQL databases).
    • Containerization amp; Orchestration (Docker, Kubernetes, or Helm).
    • Cloud Computing experience (AWS, AWS C2S, EC2, Lambda, VPC).
    • Version Control amp; Automation (Git, Jenkins, CI/CD pipelines).
Preferred Qualifications:
  • Hands-on experience with big data processing tools (PySpark, Airflow, Trino, NiFi, or Hadoop).
  • Experience configuring and maintaining Elasticsearch / ELK Stack or OpenSearch clusters.
  • Knowledge of additional languages (Java, C++, or Bash scripting).
  • Familiarity with machine learning frameworks or data modeling techniques.
JTEC Consulting LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

Salary:
JTEC offers competitive compensation and benefits to all employees. Salary ranges are advertised based on good faith estimates at the time of posting and indicating pay that JTEC anticipates for successful applicants. The estimated salary range displayed in this posting is dependent upon position requirements, individual qualifications, education, experience, location, and other job-related factors. Our recruiting team will review candidates' related experience and desired salary targets during the evaluation process. All qualified candidates will be considered.
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