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Senior Python Flask Developer Jobs in Pennsylvania

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Senior Python Flask Developer information

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 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 are the most commonly searched types of Python Flask Developer jobs in Pennsylvania? The most popular types of Python Flask Developer jobs in Pennsylvania are:
What are popular job titles related to Senior Python Flask Developer jobs in Pennsylvania? For Senior Python Flask Developer jobs in Pennsylvania, the most frequently searched job titles are:
What job categories do people searching Senior Python Flask Developer jobs in Pennsylvania look for? The top searched job categories for Senior Python Flask Developer jobs in Pennsylvania are:
What cities in Pennsylvania are hiring for Senior Python Flask Developer jobs? Cities in Pennsylvania with the most Senior Python Flask Developer job openings:
Infographic showing various Senior Python Flask Developer job openings in Pennsylvania as of July 2026, with employment types broken down into 81% Full Time, 7% Part Time, 1% Temporary, and 11% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution.
UI/UX Software Engineer (AI-Specialty)

UI/UX Software Engineer (AI-Specialty)

Lockheed Martin

King Of Prussia, PA • On-site

$101K - $135K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 25 days ago


Lockheed Martin rating

8.2

Company rating: 8.2 out of 10

Based on 389 frontline employees who took The Breakroom Quiz

31st of 63 rated aerospace companies


Job description


WHAT WE'RE DOING
Come join the CommandIQ® (CIQ) team - a product line established in 2025 with sizable investment and support from RMS senior leadership. We are developing mission critical Battle Management and Command & Control capabilities for a complete Command and Control mission suite. Our solution provides the open architecture as well as mission apps that can be customized to each user's needs. Customers can also easily integrate their favorite tools into a single CommandIQ® Common Operating Picture (COP) to meet their own, specialized mission requirements.
Join us and become a part of the team that is actively designing and developing the initial baseline which has already generated significant customer interest both domestically and internationally!
Check out these links for more information about our exciting suite of products:
https://www.lockheedmartin.com/en-us/products/command-and-control.html
https://www.youtube.com/watch?v=mYu06sRV398
THE WORK
CommandIQ® is seeking a software engineer to join one of our agile development teams. In this role, you will:
• Decompose higher-level roadmap features into actionable work items
• Design, Implement, and integrate/test software features
• Perform peer reviews for fellow software engineers and debug issues as they arise
• Participate in technical discussions to define/solve overarching software architecture needs
• Collaborate with cross-functional peers to better understand project requirements and customer/stakeholder needs
WHO WE ARE
CommandIQ® is a geographically dispersed project team that executes in an agile - scrum setting. The team readily adapts to changing priorities as new information is discovered and project milestones shift to meet the various stakeholder needs. It has the opportunity to be fast-paced environment but also presents a highly-desirable opportunity for team members to gain exposure to various subject areas and hone their technical skills across various tools and frameworks.
Additionally, team members have the ability to interface with an array of different customer groups and present thoughtful solutions to meet the various customer/stakeholder needs. If the desire to succeed in an actively changing and complex problem space excites you, CommandIQ® is the place to be!
For this role specifically, candidates who are local to Colorado Springs, CO or King of Prussia, PA are preferred. Strong candidates who exceptionally match the roles and responsibilities will be considered for a fully-remote work schedule. The specific weekly work schedule will be discussed during the hiring process.
WHY JOIN US
Your Health, Your Wealth, Your Life - At Lockheed Martin, we prioritize the well-being of our employees. We offer flexible schedules, competitive pay, and a comprehensive benefits package to support your healthy, fulfilling life both at and outside of work.
Basic Qualifications
• Experience with UI/UX Design & Iteration Process/Tools (Figma, MockFlow, UXPin, Axure)
• Experience with utilizing AI tools (Figma AI, UX Pilot, Google Stitch) within overall UI/UX design process
• Frontend framework development experience using Angular, javascript, CSS, and HTML
• Experience/Familiarity with the following: Docker, REST APIs
• Experience across the full Software Development Life Cycle (SDLC)
• 3+ years of relevant work experience (Advanced Degree may be substituted for 2 years of experience)
Desired skills
• Experience in Agile Methodologies & Tools
• Experience in UI/UX Test Frameworks (Cypress, Selenium, Playwright, Jest)
• Experience in a Full-Stack engineering role
• Experience/Exposure to any of the following: Gitlab CI/CD, Helm, Kubernetes, gRPC, Python, Flask
• Previous IRAD experience
• Active Secret Clearance
EEO
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
*
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.
With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.
If this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.
Other Important Information
By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Ability to work remotely
Part-time Remote Telework: The employee selected for this position will work part of their work schedule remotely and part of their work schedule at a designated Lockheed Martin facility. The specific weekly schedule will be discussed during the hiring process.
Work Schedule Information
Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
National Pay Statement
Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $93,200 - $164,450. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
(Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.
This position is incentive plan eligible.
Premium Pay Statement
Pay Rate: The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $107,300 - $185,840. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
This position is incentive plan eligible.

What Lockheed Martin employees say

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About Lockheed Martin

Sourced by ZipRecruiter

As a global security and aerospace company, the majority of Lockheed Martin's business is with the U.S. Department of Defense and U.S. federal government agencies.The remaining portion of Lockheed Martin's business is comprised of international government and commercial sales of products, services and platforms.

Industry

Manufacturing

Company size

10,000+ Employees

Headquarters location

Bethesda, MD, US

Year founded

1912