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Senior Python Developer Jobs in Sterling, VA (NOW HIRING)

Senior Spark & Python Developer

Mclean, VA ยท 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 Developer (Mid-Senior)

Chantilly, VA ยท On-site

$150K - $175K/yr

Python Developer (Mid-Senior) Chantilly, VA 20151 JTEC Consulting LLC focuses on successfully delivering solutions to meet our clients' most critical needs. Our founding members have decades of ...

What We're Looking For Senior Backend Engineering Depth Extensive experience designing, building, and operating backend systems in Python, including asynchronous frameworks (FastAPI, asyncio) and ...

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Senior Python Developer information

See Sterling, VA salary details

$54.5K

$140.6K

$193.1K

How much do senior python developer jobs pay per year?

As of Jul 9, 2026, the average yearly pay for senior python developer in Sterling, VA is $140,606.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,300.00 and $161,900.00 per year, depending on experience, location, and employer.

What are the main responsibilities of a Senior Python Developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

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

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

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

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by Senior Python Developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.
What are the most commonly searched types of Python Developer jobs in Sterling, VA? The most popular types of Python Developer jobs in Sterling, VA are:
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What cities near Sterling, VA are hiring for Senior Python Developer jobs? Cities near Sterling, VA with the most Senior Python Developer job openings:
Financial Model Development Senior (Python Developer)

Financial Model Development Senior (Python Developer)

Freddie Mac

Mclean, VA โ€ข On-site

$130K - $196K/yr

Full-time

Posted 14 days ago


Job description

At Freddie Mac, our mission of Making Home Possible is what motivates us, and it's at the core of everything we do. Since our charter in 1970, we have made home possible for more than 90 million families across the country. Join an organization where your work contributes to a greater purpose.

Position Overview:

Are you a seasoned software engineer, eager to break into the demanding fields of data science and machine learning? Are you proficient in Python, and full life cycle software development?

Freddie Mac is currently seeking a senior developer to join the Credit Innovation and Analytics team in the Single-Family division.

This position will play an important role in developing, enhancing and maintaining CIA's suite of applications, models and tools used for automated evaluation of borrowers' capacity (assets, income, employment). The person will employ strong software development and analytical skills in the implementation of new products and optimization/ expansion of existing products.

Our Impact:

The CIA team owns credit policy and analytics as it pertains to the borrower's capacity to repay the mortgage. The team is responsible for developing and implementing technical solutions for automating the manual processes of assessing borrower assets and income using big data, analytics and third-party service providers.

Your Impact:

Your work will primarily involve analytic software design, development and maintenance:

  • Model, implement and test business rules in complex analytics software involving machine learning and data analysis algorithms.

  • Use best practices in software development to create and maintain scalable, robust, reliable, maintainable and elegant software.

  • Work with the business analysts to translate business requirements into software specifications,

  • Develop automated testing strategies and tools, conduct testing, and present results.

Qualifications:

  • Bachelor's Degree in Computer Science, Engineering, or a related field. Advanced studies/ degree preferred.

  • At least 5 years' experience in developing analytic and production quality software, following industry best practices.

  • Proficiency in Python, C++ and Java.

  • Familiarity with AWS EKS and Python web services frameworks such as Flask, Fast API or Django

  • Hands on experience in well disciplined, full stack and full life cycle software development.

  • Fluency in development tools such as Make, Git, shell scripts, gdb, pdb, SQL, RDBMS

  • Experience in model implementation is nice to have.

Keys to Success in this Role:

  • Demonstrate superior technical skills,

  • Ability to collaborate across multiple teams,

  • Keep pace with rapidly changing business needs

Current Freddie Mac employees please apply through the internal career site.

We consider all applicants for all positions without regard to gender, race, color, religion, national origin, age, marital status, veteran status, sexual orientation, gender identity/expression, physical and mental disability, pregnancy, ethnicity, genetic information or any other protected categories under applicable federal, state or local laws. We will ensure that individuals are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

A safe and secure environment is critical to Freddie Mac's business. This includes employee commitment to our acceptable use policy, applying a vigilance-first approach to work, supporting regulatory mandates, and using best practices to protect Freddie Mac from potential threats and risk. Employees exercise this responsibility by executing against policies and procedures and adhering to privacy & security obligations as required via training programs.

CA Applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

Notice to External Search Firms: Freddie Mac partners with BountyJobs for contingency search business through outside firms. Resumes received outside the BountyJobs system will be considered unsolicited and Freddie Mac will not be obligated to pay a placement fee. If interested in learning more, please visit www.BountyJobs.com and register with our referral code: MAC.

Time-type:Full timeFLSA Status:Exempt

Freddie Mac offers a comprehensive total rewards package to include competitive compensation and market-leading benefit programs. Information on these benefit programs is available on our Careers site.

This position has an annualized market-based salary range of $130,000 - $196,000 and is eligible to participate in the annual incentive program. The final salary offered will generally fall within this range and is dependent on various factors including but not limited to the responsibilities of the position, experience, skill set, internal pay equity and other relevant qualifications of the applicant.Employment Type: FULL_TIME

Freddie Mac logo

About Freddie Mac

Sourced by ZipRecruiter

Today, Freddie Mac makes home possible for one in four home borrowers and is one of the largest sources of financing for multifamily housing. Join our smart, creative and dedicated team and you'll do important work for the housing finance system and make a difference in the lives of others.

Industry

Finance and insurance

Company size

5,001 - 10,000 Employees

Headquarters location

McLean, VA, US

Year founded

1970