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Junior Python React Jobs in Philadelphia, PA (NOW HIRING)

Sr. Software Engineer

Camden, NJ · On-site

$110K - $125K/yr

Contributes to front-end features using JavaScript frameworks (React). Additional Responsibilities ... Strong project management and leadership skills to guide efforts of junior programmers.

Sr. Software Engineer

Camden, NJ · On-site

$110K - $125K/yr

Contributes to front-end features using JavaScript frameworks (React). Additional Responsibilities ... Strong project management and leadership skills to guide efforts of junior programmers.

Senior AI Engineer

Wilmington, DE · On-site +1

$101K - $139K/yr

Mentor & help accelerate the work of junior developers; foster collaboration and teamwork and pair ... Minimum 2 years UI & frontend development with React.js, Typescript, and HTML * Strong hands-on ...

Showing results 21-24

Junior Python React information

See Philadelphia, PA salary details

$24.2K

$89.8K

$138.8K

How much do junior python react jobs pay per year?

As of Aug 6, 2026, the average yearly pay for junior python react in Philadelphia, PA is $89,784.00, according to ZipRecruiter salary data. Most workers in this role earn between $67,600.00 and $87,800.00 per year, depending on experience, location, and employer.

What does a junior Python React developer do?

A Junior Python React developer is responsible for assisting in building web applications using Python for the backend and React.js for the frontend. Their duties often include writing and maintaining code, fixing bugs, and collaborating with senior developers to implement new features. They may also help with testing, troubleshooting, and optimizing application performance. Typically, they are still learning best practices and are expected to grow their technical skills on the job.

What are some common challenges a junior Python React developer might face when working on full-stack projects?

As a Junior Python React developer, one common challenge is efficiently integrating the backend (often using Python frameworks like Django or Flask) with the frontend built in React. This requires clear understanding of RESTful APIs, asynchronous data handling, and managing state in React applications. Additionally, adapting to collaborative workflows, such as version control with Git and participating in code reviews, can be a learning curve. However, these challenges are great learning opportunities that help you improve your technical and teamwork skills.

What is the difference between Junior Python React vs Junior JavaScript Developer?

AspectJunior Python ReactJunior JavaScript Developer
Required CredentialsBasic Python and React knowledge, possibly some certificationsJavaScript fundamentals, HTML, CSS, and related certifications
Work EnvironmentWeb development, data-driven applications, full-stack projectsFront-end web development, UI/UX design, client-side scripting
Employer & Industry UsageTech companies, startups, SaaS providersWeb agencies, tech firms, startups
Search & Comparison IntentJob roles involving Python and React skills at entry levelEntry-level JavaScript roles focusing on front-end development

Junior Python React roles typically focus on combining Python backend skills with React frontend development, suitable for full-stack projects. In contrast, Junior JavaScript Developer roles mainly emphasize front-end development using JavaScript, HTML, and CSS. Both roles are common in web development environments but differ in technical focus and required skills.

What are the key skills and qualifications needed to thrive as a junior Python React developer?

To thrive as a Junior Python React Developer, you need a solid understanding of Python programming, JavaScript, and fundamental web development concepts, often supported by a relevant degree or coding bootcamp experience. Familiarity with frameworks and tools like Django or Flask for Python, React.js, version control systems like Git, and basic RESTful API integration is typically required. Strong problem-solving abilities, eagerness to learn, and effective teamwork and communication skills help you stand out in this role. These skills are crucial for building reliable, scalable web applications and contributing effectively to collaborative software development projects.
What job categories do people searching Junior Python React jobs in Philadelphia, PA look for? The top searched job categories for Junior Python React jobs in Philadelphia, PA are:
What cities near Philadelphia, PA are hiring for Junior Python React jobs? Cities near Philadelphia, PA with the most Junior Python React job openings:

Senior Software Engineer (Top Secret Clearance)

Lockheed Martin

King Of Prussia, PA • On-site

$119K - $157K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 24 days ago


Lockheed Martin rating

8.2

Company rating: 8.2 out of 10

Based on 391 frontline employees who took The Breakroom Quiz

37th of 71 rated aerospace companies


Job description


Lockheed Martin's Victor Portfolio of Space Security is seeking a highly skilled, motivated, and experienced Senior Software Engineer to join an Agile, cross-functional team dedicated to protecting critical space assets. This role will focus on developing web-based applications within an open-architecture infrastructure that supports mission-critical space-security operations. The successful candidate will collaborate with internal development teams and subject-matter experts, and thrive in a fast-paced environment where each day brings new challenges.
Key Responsibilities
• Full-Lifecycle Development - Design, implement, test, deploy, and maintain web applications and services that enable space-asset protection.
• Agile Collaboration - Participate in Scrum ceremonies (stand-ups, sprint planning, retrospectives) and contribute to continuous-improvement of team processes.
• Open-Architecture Integration - Build modular, reusable components that conform to open-architecture standards and facilitate integration with existing and future mission systems.
• Technical Leadership - Mentor junior engineers, conduct code reviews, and drive adoption of best practices (CI/CD, automated testing, secure coding, performance profiling).
• Stakeholder Engagement - Work closely with domain experts to translate mission needs into technical solutions.
Applicants selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information, and must maintain the required security throughout the course of employment.
Basic Qualifications
• Proficiency in modern languages such as Java, C#, Python, or JavaScript/TypeScript; strong understanding of object-oriented design and principles.
• Hands-on experience with RESTful APIs, HTML5, CSS3, modern JavaScript frameworks (e.g., React, Angular, Vue), and UI/UX best practices.
• Familiarity with pipelines (Jenkins, GitLab CI, Azure DevOps), containerization (Docker, Kubernetes), and version control (Git).
• Proven track record working in Scrum or Kanban teams; comfortable with iterative development and rapid feedback cycles.
• US citizenship is required to obtain a government security clearance
• Active DOD Top Security Clearance with an investigation or Continuous Vetting (CV) date within 5 years
Desired skills
• Experienced with Horizon software application providing command and control services for satellites, antennas, and ground hardware assets.
• Experience in application containerization (e.g. Docker, Kubernetes, Helm, etc.) in a cloud environment (AWS/Azure/Openstack/Openshift)
• Hands-on experience with RESTful APIs, HTML5, CSS3, modern JavaScript frameworks (e.g., React, Angular, Vue), and UI/UX best practices.
• Domain Experience in Mission Management, Planning and Scheduling, Orbital Mechanics, SSA (Space Situational Awareness)
#LMSpaceSoftwareEng
#SpaceSecurity
#SpaceNSS
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.
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.

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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