Mclean, VA · On-site
$51.50 - $71/hr
Python Software Developer (Financial Accounting & Forecasting Applications) Client: Freddie Mac (Investments & Capital Markets Division) Location: McLean, VA (Local candidates only -- within a 40 ...
Mclean, VA · On-site
$51.50 - $71/hr
Python Software Developer (Financial Accounting & Forecasting Applications) Client: Freddie Mac (Investments & Capital Markets Division) Location: McLean, VA (Local candidates only -- within a 40 ...
$103K - $218K/yr
Python Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type ...
$103K - $218K/yr
Python Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type ...
Loudoun, VA · On-site
$57 - $78.50/hr
Python, REST API, ETL, AWS and SQL Position: Java Developer Location: Herndon, VA Description: The client is seeking a Developer to design, develop, and implement applications using general languages ...
Loudoun, VA · On-site
$57 - $78.50/hr
Python, REST API, ETL, AWS and SQL Position: Java Developer Location: Herndon, VA Description: The client is seeking a Developer to design, develop, and implement applications using general languages ...
Chantilly, VA · On-site
$51.50 - $71/hr
Python Developer Minimum Requirements * US Citizenship with TS/SCI or clearable * Four years of experience in a Python or Golang development role * Bachelor's degree in computer science, software ...
New
Chantilly, VA · On-site
$51.50 - $71/hr
Python Developer Minimum Requirements * US Citizenship with TS/SCI or clearable * Four years of experience in a Python or Golang development role * Bachelor's degree in computer science, software ...
New
Washington, DC · Remote
$56.75 - $78.25/hr
We are seeking a Python Middleware Developer to support a federal client in the Washington, DC area on a major application modernization initiative. This role will focus on designing, developing, and ...
Quick apply
Washington, DC · Remote
$56.75 - $78.25/hr
We are seeking a Python Middleware Developer to support a federal client in the Washington, DC area on a major application modernization initiative. This role will focus on designing, developing, and ...
Washington, DC · On-site
$57 - $78.50/hr
We are seeking a Python Middleware Developer to support a federal client in the Washington, DC area on a major application modernization initiative. This role will focus on designing, developing, and ...
Washington, DC · On-site
$57 - $78.50/hr
We are seeking a Python Middleware Developer to support a federal client in the Washington, DC area on a major application modernization initiative. This role will focus on designing, developing, and ...
Mclean, VA · On-site
$50.75 - $70/hr
Developer Python Location: McLean, VA - Fully onsite Assignment Type: Contract Only Duration: 6 plus months Must Have Qualifications: Must have 5+ years of experience in software development using ...
Quick apply
Mclean, VA · On-site
$50.75 - $70/hr
Developer Python Location: McLean, VA - Fully onsite Assignment Type: Contract Only Duration: 6 plus months Must Have Qualifications: Must have 5+ years of experience in software development using ...
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Chantilly, VA · On-site
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Chantilly, VA · On-site
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Mclean, VA · On-site
$51.50 - $71/hr
Role: Senior Python Developer Location: McLean, VA (5 Days onsite) Duration: Long term project Interview Mode: In-Person Notes: Looking for a consultant with minimum 10+ years of hands-on ...
Mclean, VA · On-site
$51.50 - $71/hr
Role: Senior Python Developer Location: McLean, VA (5 Days onsite) Duration: Long term project Interview Mode: In-Person Notes: Looking for a consultant with minimum 10+ years of hands-on ...
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Chantilly, VA · On-site
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Chantilly, VA · On-site
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Reston, VA · On-site
$52.25 - $72/hr
Python Developer LOCATION: Reston VA The client is only considering local candidates DURATION: 1-Year Contract W2 Only - [No C2C - No /OPT/CPT] H1b Transfer is ok LINKEDIN Matching to the resume is ...
Quick apply
Reston, VA · On-site
$52.25 - $72/hr
Python Developer LOCATION: Reston VA The client is only considering local candidates DURATION: 1-Year Contract W2 Only - [No C2C - No /OPT/CPT] H1b Transfer is ok LINKEDIN Matching to the resume is ...
Mclean, VA · On-site
$50.75 - $70/hr
Python Developer Must Have Skills: * Python development (backend) * AWS Lambda, API Gateway / ALB * DynamoDB & Aurora (RDS) * Strong software engineering fundamental * Unit testing + Integration ...
Quick apply
Mclean, VA · On-site
$50.75 - $70/hr
Python Developer Must Have Skills: * Python development (backend) * AWS Lambda, API Gateway / ALB * DynamoDB & Aurora (RDS) * Strong software engineering fundamental * Unit testing + Integration ...
Chantilly, VA · On-site
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Chantilly, VA · On-site
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Aldie, VA · On-site
$107K - $195K/yr
Description Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen ...
Aldie, VA · On-site
$107K - $195K/yr
Description Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen ...
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Reston, VA · On-site
$52.25 - $72/hr
Familiarity with event-driven programming in Python * Able to create database schemas that represent and support business processes * Unit test and debugging skills * Proficient understanding of code ...
Reston, VA · On-site
$52.25 - $72/hr
Familiarity with event-driven programming in Python * Able to create database schemas that represent and support business processes * Unit test and debugging skills * Proficient understanding of code ...
Chantilly, VA · On-site
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
Chantilly, VA · On-site
$107K - $195K/yr
Python Developer Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced ...
$24.7K - $35.3K
1% of jobs
$35.3K - $45.9K
2% of jobs
$45.9K - $56.5K
6% of jobs
$56.5K - $67.1K
14% of jobs
$67.6K is the 25th percentile. Wages below this are outliers.
$67.1K - $77.7K
34% of jobs
$86K is the 75th percentile. Wages above this are outliers.
$77.7K - $88.3K
23% of jobs
$88.3K - $98.9K
5% of jobs
$98.9K - $109.5K
6% of jobs
$109.5K - $120.1K
4% of jobs
$120.1K - $130.7K
3% of jobs
$130.7K - $141.3K
1% of jobs
$24.7K
$91.4K
$141.3K
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.
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.
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.
The most popular types of Python Developer jobs in Herndon, VA are:
For Junior Python Developer jobs in Herndon, VA, the most frequently searched job titles are:
The top searched job categories for Junior Python Developer jobs in Herndon, VA are:
Cities near Herndon, VA with the most Junior Python Developer job openings:
Mclean, VA • On-site
$51.50 - $71/hr
Other
Posted 9 days ago
Job Title: Python Software Developer (Financial Accounting & Forecasting Applications)
Client: Freddie Mac (Investments & Capital Markets Division)
Location: McLean, VA (Local candidates only — within a 40-minute commute)
Interview Mode: In-Person Interview Required
Employment Type: Contract
Position Overview
Client’s Investments & Capital Markets division is seeking a hands-on Python Software Developer to support its enterprise forecasting platform. In this role, you will develop and enhance core forecasting engines that drive long-term financial projections, strategic decision-making, and critical financial reporting. You will collaborate closely with Financial Planning & Analysis (FP&A) and quantitative teams to improve model accuracy, system performance, and quarterly reporting cycles.
Key Responsibilities
Engine & Application Development: Refactor, modernize, and develop core features for financial accounting and forecasting applications to improve scalability, runtime efficiency, and code maintainability.
Production Support & Run Execution: Monitor and support critical quarterly and annual production runs for financial reporting, ensuring output integrity, calculation accuracy, and timely completion.
Quality & Testing: Write clean, modular, production-grade Python code accompanied by automated unit and integration tests (Pytest) to maintain high test coverage.
Troubleshooting & Maintenance: Diagnose and resolve production defects, reduce technical debt, and ensure adherence to clean architecture and software engineering standards.
Cross-Functional Collaboration: Partner with data engineers, infrastructure teams, and FP&A business stakeholders to implement scenario analysis, requirement updates, and platform migrations.
DevOps & Architecture: Support infrastructure upgrades, containerized deployments, shell-based automation scripts, and peer code reviews.
Required Qualifications
Python Development:
3+ years of hands-on Python software development experience with a Bachelor’s degree in Computer Science or a quantitative discipline, OR
1–2 years of hands-on Python development experience with a Master’s degree in Computer Science, Quantitative Finance, or related technical field.
Databases & Version Control: 1–2 years of experience writing SQL and working with relational databases; strong proficiency with Git in collaborative Agile environments.
Containers & Scripting: 1–2 years of experience with containerization technologies (Docker, Podman, or Kubernetes) and shell scripting for task automation and system troubleshooting.
Testing: 1–2 years of hands-on experience implementing automated testing pipelines using Pytest or related unit-testing frameworks.
Domain Knowledge: Foundational understanding of fixed-income instruments and metrics, including duration, convexity, spread, and option-adjusted spread (OAS).
Communication & Delivery: Strong analytical, critical thinking, and verbal/written communication skills; familiarity with Agile/Scrum delivery.
Preferred Qualifications
Advanced degree (Master’s) in Computer Science, Mathematics, Financial Engineering, or Statistics.
Familiarity with GAAP accounting fundamentals (revenue/expense recognition, amortization schedules).
Progress toward or completion of relevant certifications (CFA, FRM, or CPA).
Experience with enterprise project tracking tools (JIRA, Confluence) and technical requirements gathering directly from business users.
