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Junior Python Developer Jobs in Fairfax, VA (NOW HIRING)

SES

Gen AI/Python Developer

Reston, VA · On-site

$52.25 - $72/hr

Systems Engineering Services is seeking an AI/Python Developer with a Java Certification based out of the Washington DC/Reston area. Top 5 Technical Skills: * Python * Gen AI * SQL * AWS Data ...

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 ...

Ekcel Technologies Inc

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 ...

TranSquared inc

Senior Python Developer

Mclean, VA · On-site

$124K - $167K/yr

Senior Python Developer Location: Must be onsite in McLean, VA for 5 days a week (Monday to Friday) Duration: Long Term Interview Mode: In-Person interview Notes: Looking for a Senior Python ...

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 ...

MANTECH

Senior Python Developer

Herndon, VA · On-site

$124K - $168K/yr

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

MANTECH

Senior Python Developer

Herndon, VA · On-site

$124K - $168K/yr

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

MANTECH

Senior Python Developer

Herndon, VA

$124K - $168K/yr

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

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 ...

MANTECH

Senior Python Developer

Herndon, VA · On-site

$124K - $168K/yr

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

Cymertek

Java, Scala, Python Developer

Reston, VA · On-site

Java, Scala, Python Developer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a versatile and highly skilled ...

Cymertek

Java, Scala, Python Developer

Chantilly, VA · On-site

Java, Scala, Python Developer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a versatile and highly ...

Cymertek

Java, Scala, Python Developer

Tysons, VA · On-site

Java, Scala, Python Developer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a versatile and highly skilled ...

SES

Python/Gen AI Developer

Reston, VA · On-site

$52.25 - $72/hr

Systems Engineering Services is seeking an AI/Python Developer with a Java Certification based out of the Washington DC/Reston area. Top 5 Technical Skills: * Python * Gen AI * SQL * AWS Data ...

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Junior Python Developer information

See Fairfax, VA salary details

$23.8K

$88.3K

$136.5K

How much do junior python developer jobs pay per year?

As of Jul 13, 2026, the average yearly pay for junior python developer in Fairfax, VA is $88,307.00, according to ZipRecruiter salary data. Most workers in this role earn between $66,500.00 and $86,300.00 per year, depending on experience, location, and employer.

What is a Junior Python Developer job?

A Junior Python Developer is an entry-level software developer who specializes in writing, testing, and maintaining code using the Python programming language. They typically work under the guidance of senior developers and assist in building applications, fixing bugs, and improving performance. Their responsibilities may include writing scripts, working with databases, and integrating third-party services. Strong problem-solving skills, knowledge of Python frameworks like Django or Flask, and familiarity with version control systems like Git are often required. Junior developers are expected to learn quickly and contribute to the development team while gaining hands-on experience.

What are the key skills and qualifications needed to thrive in the Junior Python Developer position, and why are they important?

To thrive as a Junior Python Developer, you need a solid foundation in Python programming, an understanding of computer science fundamentals, and often a relevant degree or coursework. Familiarity with version control systems like Git, basic experience with web frameworks such as Flask or Django, and knowledge of databases are commonly expected, while certifications like PCEP can be advantageous. Attention to detail, a willingness to learn, effective problem-solving, and strong communication skills are essential soft skills for this role. These competencies ensure you can contribute efficiently to software development projects, adapt to new challenges, and collaborate well within a development team.

What are the typical daily responsibilities of a Junior Python Developer?

As a Junior Python Developer, your daily tasks may include writing and testing code, fixing bugs, and participating in code reviews alongside more experienced developers. You'll often work on modules or features under the guidance of senior team members, attend stand-up meetings, and update project documentation as needed. Collaboration with frontend developers, QA testers, and project managers is common, especially when integrating systems or implementing new features. Over time, you can expect to take on more complex tasks and gradually build your expertise through mentorship and hands-on project work.

What are the most commonly searched types of Python Developer jobs in Fairfax, VA? The most popular types of Python Developer jobs in Fairfax, VA are:
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Junior Python Developer jobs near you
Gen AI/Python Developer

Gen AI/Python Developer

SES

Reston, VA • On-site

$52.25 - $72/hr

Other

Posted 23 days ago

Job description

Systems Engineering Services is seeking an AI/Python Developer with a Java Certification based out of the Washington DC/Reston area.

Top 5 Technical Skills:

  1. Python
  2. Gen AI
  3. SQL
  4. AWS Data Services
  5. LLM
  6. ML
  7. Sagemaker
  8. Bedrock

Top 3 Soft Skills:

  1. Confidence in Communication skills for Teamwork and sharing
  2. Stand alone to get work done, Independent
  3. Flexibility

Job Description:
Experience:
10+ years overall in Software Engineering disciplines, preferably in the financial services industry
2-3 years of experience in AI engineering roles - ML experience in NTH
Strong programming skills in Python, SQL and experience with AWS.
Priority Order of Skills is AWS, Gen AI, Python, AI Code Generation, SQL

Required Qualifications:
2 3 years of experience in data analysis or machine learning roles.
Proficiency in Python and SQL for data manipulation and analysis.
Hands-on experience with major AWS services, particularly SageMaker, S3, Redshift, and Lambda.
Experience working with LLMs (Anthropic Claude, Sonnet) and prompt engineering techniques.
Strong understanding of financial data, KPIs, and reporting standards.
Excellent communication and collaboration skills.
Preferred Qualifications:
Experience in the finance or fintech industry.
Familiarity with vector databases (e.g., FAISS, Pinecone) and retrieval-augmented generation (RAG).
Exposure to data visualization tools (e.g., Power BI, Tableau).
Bachelor s degree in Computer Science, Data Science, Finance, or a related field

Jake Lutman

Technical Recruiter

Systems Engineering Services

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