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Senior Python Flask Developer Jobs in Fairfax, VA

Mindlance

Senior Python Developer

Mclean, VA · On-site

$124K - $167K/yr

Title: Sr Python Developer Location: McLean, VA (Fully On-site) Duration: Long Term Assignment Must ... Python, Rest API (Flask or Fast API), Pandas or NumPy. Responsibilities include: * Engineer capable ...

ICONMA

Senior Python Developer

Mclean, VA · On-site

$124K - $167K/yr

Senior Python Developer Our client, a Real Estate and Financial Services company, is looking for a Senior Python Developer for their McLean, VA location. Responsibilities: * Client Investments ...

ManTech

Senior Python Developer

Herndon, VA · On-site

$124K - $168K/yr

Senior Python Developer Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies.

Concept Plus

Sr. Python Developer

Fairfax, VA · On-site

$125K - $168K/yr

Senior Python Developer Concept Plus is a mission-focused technology solutions provider that transforms IT concepts into impactful solutions for federal agencies. Headquartered in Fairfax, VA, we ...

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 ...

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 ...

Interon IT Solutions

Python Developer

Reston, VA · On-site

$52.25 - $72/hr

Senior Python Developer - with Container (EKS) & AWS experience Client: Fannie Mae Location: Reston VA - In person interviews so need Local In EAST coast only Long Term This is for a Senior Python ...

Samprasoft

Python Developer SR. | McLean,VA

Mclean, VA · On-site

$124K - $167K/yr

... Django, flask, pyramid * Experience with Object Relational Mapper (OPM) libraries * Deep ... Python, Java. Additional Skills: Software Developer. This is a high priority requisition.

WorkNova LLC

Python Developer

Reston, VA · On-site

$52.25 - $72/hr

Position Summary The Senior Python Developer will design, develop, test, and implement cloud native ... building RESTful APIs using Flask, Django, or FastAPI • Knowledge of authentication and ...

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All JobsSenior Python Flask Developer JobsSenior Python Flask Developer Jobs in Fairfax, VA

Senior Python Flask Developer information

See Fairfax, VA salary details

$56.2K

$145.1K

$199.3K

How much do senior python flask developer jobs pay per year?

As of Jun 27, 2026, the average yearly pay for senior python flask developer in Fairfax, VA is $145,123.00, according to ZipRecruiter salary data. Most workers in this role earn between $124,200.00 and $167,100.00 per year, depending on experience, location, and employer.

How much does a senior Python developer make?

A senior Python Flask developer typically earns between $100,000 and $150,000 annually, depending on experience, location, and company size. They often possess strong skills in web frameworks, APIs, and database integration, which can influence salary levels.

What are Senior Python Flask Developers?

Senior Python Flask Developers are experienced software engineers who specialize in building web applications using the Python programming language and the Flask web framework. They are responsible for designing, developing, and maintaining scalable backend systems, APIs, and web services. In addition to strong coding skills, they often lead projects, mentor junior developers, and ensure best practices in code quality, security, and performance. Their expertise allows them to solve complex technical challenges and contribute to the overall architecture and success of software projects.

What is the salary of Python flask?

The salary for a Senior Python Flask Developer typically ranges from $90,000 to $130,000 annually, depending on experience, location, and company size. Skilled developers with knowledge of REST APIs, database integration, and cloud deployment tend to earn higher salaries.

What are some common challenges faced by Senior Python Flask Developers when working on large-scale applications?

Senior Python Flask Developers often encounter challenges such as managing complex codebases, ensuring scalability, and maintaining performance as applications grow. Integrating Flask with other technologies (like databases, caching systems, or third-party APIs) can introduce architectural complexities. Additionally, balancing rapid development with writing maintainable, well-tested code is crucial. Collaboration with frontend developers, DevOps, and QA teams is frequent, requiring strong communication and problem-solving skills.

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

AspectSenior Python Flask DeveloperPython Developer
Required CredentialsBachelor's in CS or related, experience with Flask, REST APIsBachelor's in CS or related, basic Python knowledge
Work EnvironmentWeb development teams, startups, tech companiesSoftware development teams, startups, tech companies
Employer & Industry UsageTech firms, SaaS companies, startupsVariety of industries including finance, healthcare, tech
Search & Comparison IntentAdvanced roles, leadership, project scopeEntry to mid-level development, learning

The main difference between a Senior Python Flask Developer and a Python Developer lies in experience and responsibilities. Senior developers typically have more expertise in Flask, lead projects, and mentor junior staff, whereas Python Developers may focus on coding and basic application development. Both roles are essential in web development teams, but senior roles require deeper knowledge and leadership skills.

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

To thrive as a Senior Python Flask Developer, you need advanced proficiency in Python, deep understanding of the Flask framework, and experience designing scalable backend architectures, typically supported by a degree in computer science or related field. Familiarity with RESTful API development, database management systems like PostgreSQL or MySQL, and version control tools such as Git is essential, and certifications in cloud platforms or web development can be beneficial. Strong problem-solving skills, clear communication, and the ability to mentor junior developers are standout soft skills for this role. These abilities ensure efficient delivery of robust, maintainable web applications and foster productive collaboration within development teams.

What is the highest paid Python programmer?

Senior Python Flask developers with extensive experience, specialized skills, and knowledge of frameworks and cloud services tend to earn the highest salaries among Python programmers. Top earners often work in industries like finance, technology, or data science and may hold advanced certifications or leadership roles. Salary levels vary based on location, company size, and individual expertise.

Is Flask a backend or frontend?

Flask is a lightweight Python web framework used for building backend applications and APIs. It handles server-side logic, data processing, and routing, but does not manage frontend user interfaces directly. Developers often combine Flask with frontend technologies like HTML, CSS, and JavaScript to create complete web applications.
What are popular job titles related to Senior Python Flask Developer jobs in Fairfax, VA? For Senior Python Flask Developer jobs in Fairfax, VA, the most frequently searched job titles are:
What job categories do people searching Senior Python Flask Developer jobs in Fairfax, VA look for? The top searched job categories for Senior Python Flask Developer jobs in Fairfax, VA are:
What cities near Fairfax, VA are hiring for Senior Python Flask Developer jobs? Cities near Fairfax, VA with the most Senior Python Flask Developer job openings:
Senior Python Flask Developer jobs near you
Senior Python Developer

Senior Python Developer

Mindlance

Mclean, VA • On-site

$124K - $167K/yr

Other

Posted 7 days ago

Job description

Title: Sr Python Developer
Location: McLean, VA (Fully On-site)
Duration: Long Term Assignment
Must Haves: Python, Rest API (Flask or Fast API), Pandas or NumPy.
Responsibilities include:
  • Engineer capable of designing solutions, writing code, testing code, automating test and deployment.
  • Develop and maintain high-quality software code and automated tests (including Unit, Functional, Performance, Acceptance) for web interface application that integrates data, analytics, and reporting components.
  • Predictable results: changes in code can be proven to be correct and bug-free.
    Production resilience: system must be highly available with minimal downtime.
  • High performance: develop scalable calculations to maintain performance over large data sets.
    Ready, willing, and able to pick up new technologies and pitch in on story tasks (design, code, test, CI/CD, deploy, etc.)
Technical Skills:
  • Strong Proficiency in Python programming language, including experience with frameworks such as Flask, Django and FastAPI.
  • Experience with RESTful APIs and microservices architecture, and an understanding of how to design and implement them effectively.
  • Back End Skills: Python, Django/Flask/FastAPI, NumPy, pandas and Relational Database
  • Refactoring Skills: Knowledge of how to refactor code to improve its quality, maintainability, performance, and scalability while preserving its functionality.
  • Build CI/CD Tools: Gradle, Jenkins, git, Conda, pip, Jira, Gitlab, Confluence
  • DevOps: Linux & Docker

EEO:
"Mindlance is an Equal Opportunity Employer and does not discriminate in employment on the basis of - Minority/Gender/Disability/Religion/LGBTQI/Age/Veterans."
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About Mindlance

Sourced by ZipRecruiter

Mindlance is a multinational staffing and services firm based in the Greater NYC area. We have 14 offices across the United States, Canada, and India. We match talented people to Fortune 500 and Fortune 1000 companies across industries. We have been in business since 1999 and are recognized by Staffing Industry Analysts (SIA) as one of the fastest-growing U.S. staffing firms. Our rapid growth means more jobs, more projects, and more opportunities for you. Our core philosophy means that you work with an organization that truly values and recognizes you.

Industry

Recruiting and staffing services

Company size

1,001 - 5,000 Employees

Headquarters location

Union, NJ, US

Year founded

1999

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