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Senior Python Flask Developer Jobs in Merrifield, VA

Palnar

Sr. Python Developer

Mclean, VA · On-site

$123K - $166K/yr

Strong Proficiency in Python programming language, including experience with frameworks such as Flask, Django, and Fast API. * Experience with RESTful APIs and microservices architecture, and an ...

Navtech, Inc.

Senior Python Developer

Mclean, VA · On-site

$123K - $166K/yr

... Developer Experience with Python frameworks e.g., Django ... Flask. • Good experience on writing the test cases, Unit Testing, and automation test by using ...

TiltEdge Solutions LLC

Python Developer

West Mclean, VA · On-site

$65 - $70/hr

Role Overview We are seeking an experienced Senior Python Developer to join our team. The ideal candidate will have a strong background in Python development, PostgreSQL, Flask or FastAPI, and 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 ... Flask, Dash * Python data processing technologies, e.g. Pandas, Numpy * Solid understanding on web ...

Maxiom Technology

Senior Python Developer

Washington, DC · On-site

$137K - $185K/yr

We are looking for a Senior Python Developer to join our software development team. Senior Python Developer responsibilities include participating in the entire software development lifecycle ...

NT Concepts

Senior Python Developer

Chantilly, VA · On-site +1

$124K - $167K/yr

We are seeking a Senior Python Developer to join our team. Working at NT Concepts means that you are part of an innovative, agile company dedicated to solving the most critical challenges in National ...

NT Concepts

Senior Python Developer

Chantilly, VA · On-site

$120K - $180K/yr

We are seeking a Senior Python Developer to join our team. Working at NT Concepts means that you are part of an innovative, agile company dedicated to solving the most critical challenges in National ...

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 ...

Mindlance

Sr, Python Developer

Mclean, VA · On-site

$124K - $167K/yr

Title: Senior Software Developer /Senior Full Stack developer- Python Location: Mclean VA (fully onsite) Contract role Must-Have Qualifications: At least 4 years of hands-on software development ...

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 ... Hands-on experience building RESTful APIs using Flask, Django, or FastAPI * Knowledge of ...

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 ...

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All JobsPython Flask Developer JobsSenior Python Flask Developer JobsSenior Python Flask Developer Jobs in Merrifield, VA

Senior Python Flask Developer information

See Merrifield, VA salary details

$54.9K

$141.6K

$194.5K

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

As of Sep 7, 2026, the average yearly pay for senior python flask developer in Merrifield, VA is $141,615.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,200.00 and $163,100.00 per year, depending on experience, location, and employer.

What is a senior Python Flask developer?

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 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 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 popular job titles related to Senior Python Flask Developer jobs in Merrifield, VA?

For Senior Python Flask Developer jobs in Merrifield, VA, the most frequently searched job titles are:

What cities near Merrifield, VA are hiring for Senior Python Flask Developer jobs?

Cities near Merrifield, VA with the most Senior Python Flask Developer job openings:

Senior Python Flask Developer jobs near you
Infographic showing various Senior Python Flask Developer job openings in Merrifield, VA as of August 2026, with employment types broken down into 1% Internship, 87% Full Time, 7% Part Time, and 5% Contract. Highlights an 76% Physical, 6% Hybrid, and 18% Remote job distribution, with an average salary of $141,615 per year, or $68.1 per hour.

Sr Python API Developer / McLean VA, 12+ Months Contract

Suncap Technology

Mclean, VA • On-site

$123K - $165K/yr

Full-time

Re-posted 11 days ago

Job description

Job Summary:
Suncap Technology is seeking Sr Python API Developers to join their Financial Engineering team for a large strategic financial project. The role focuses on Python development of components for a software application platform that produces enterprise-level reporting based on financial statements and models, requiring collaboration with various IT groups and the development of RESTful APIs.
Responsibilities:
• 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.)
Qualifications:
Required:
• Experience writing Python code and RESTful web services using frameworks such as Flask, FastAPI etc. in a professional environment
• Back End Skills: Python, Flask/FastAPI/Django, SQLAlchemy, NumPy, Pandas, SQL and Relational Database
• Automation Testing: Pytest, Unitest, Monkey patch, pytest-mockito etc.
• Build CI/CD Tools: gradle, Jenkins, git, Conda, pip, Jira, Gitlab, Confluence
• DevOps: Linux , Docker
• 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.)
Preferred:
• Bachelor's degree, ideally in Financial Engineering, Computer Science, or a related quantitative discipline
• Professional level development experience with JavaScript, React, HTML/CSS desired but not necessary.
Company:
Suncap Technology is a staffing firm that provides recruiting and financial staffing services. Founded in , the company is headquartered in Davie, USA, with a team of 51-200 employees. The company is currently Growth Stage.
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About Suncap Technology Executive and Financial Staffing

Sourced by ZipRecruiter

Suncap Technology Executive and Financial Staffing is a unique staffing firm specializing in creating custom-matched connections between professionals and companies in temporary, contract-to-hire, direct hire and retained positions. We provide staffing & industry-specific solutions for hiring with confidence.

Industry

Recruiting and staffing services

Company size

51 - 200 Employees

Headquarters location

Davie, FL, US

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