What Does a Python Developer Do?
A Python developer designs, builds, and maintains applications using the Python programming language. They write clean, efficient code that powers websites, software tools, data pipelines, and automation scripts. Depending on the organization, they may specialize in backend web development, data science, machine learning, or cloud-based solutions. Python developers are also responsible for testing code, fixing bugs, and ensuring that applications run smoothly across platforms.
Beyond coding, Python developers collaborate with cross-functional teams such as designers, project managers, and data analysts to translate business needs into technical solutions. They work to improve performance, scalability, and security, often leveraging frameworks like Django or Flask and libraries such as Pandas or TensorFlow. Their contributions directly impact user experience, productivity, and the overall success of technology-driven projects.
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Python Developer Core Responsibilities
- Write, test, and maintain clean Python code
- Develop backend components to support web and mobile applications
- Integrate data storage solutions such as SQL and NoSQL databases
- Collaborate with front-end developers and UX teams on application design
- Automate repetitive tasks and build internal tools
- Debug and optimize applications for speed and efficiency
- Document code and maintain version control using Git
- Ensure compliance with security and data protection standards
- Stay current with emerging Python frameworks and best practices
Required Skills and Qualifications
Hard skills
- Proficiency in Python programming language
- Experience with web frameworks (Django, Flask, or FastAPI)
- Familiarity with relational and non-relational databases (MySQL, PostgreSQL, MongoDB)
- Knowledge of APIs and RESTful services
- Understanding of version control systems (Git, GitHub, GitLab)
- Ability to write unit tests and perform debugging
Soft skills
- Strong problem-solving and analytical abilities
- Clear and effective communication
- Team collaboration across technical and non-technical roles
- Attention to detail in code quality and documentation
- Time management to balance multiple priorities
Education
- Bachelor’s degree in computer science, software engineering, or related field
Certifications
- PCEP (Certified Entry-Level Python Programmer) – entry-level
- PCAP (Certified Associate in Python Programming) – recommended for advancement
- PCPP (Certified Professional in Python Programming) – advanced career development
Preferred Qualifications
- Experience with cloud platforms such as AWS, Azure, or Google Cloud
- Knowledge of machine learning libraries (TensorFlow, scikit-learn, PyTorch)
- Familiarity with containerization tools (Docker, Kubernetes)
- Background in Agile or Scrum methodologies
- Contributions to open-source projects or GitHub portfolio
National Average Salary
Python developer salaries vary by experience, industry, organization size, and geography. Click below to explore salaries by local market.
The average national salary for a Python Developer is:
$108,260
Sample Job Description Templates for Python Developers
Junior Python Developer
Position Overview
The junior Python developer supports software projects by writing and testing code under the guidance of senior engineers. This entry-level role focuses on learning best practices, debugging applications, and contributing to small development tasks while gaining professional experience in Python programming.
Responsibilities
- Write clean, basic Python code with supervision
- Assist in debugging and fixing reported issues
- Support testing and documentation of software components
- Collaborate with team members on coding assignments
- Learn and apply version control practices using Git
- Participate in code reviews to improve skills and maintain standards
Requirements
Hard skills
- Basic knowledge of Python programming language
- Familiarity with at least one Python framework (Flask, Django, or FastAPI)
- Understanding of databases and SQL fundamentals
- Exposure to version control systems such as Git
Soft skills
- Willingness to learn and accept feedback
- Strong attention to detail
- Effective communication skills
- Ability to work collaboratively in a team environment
Education
- Bachelor’s degree in computer science, information technology, or related field (or equivalent practical experience)
Certifications
- PCEP (Certified Entry-Level Python Programmer) recommended
Preferred Qualifications
- Internship or academic project experience with Python
- Familiarity with Agile or Scrum workflows
- Knowledge of front-end technologies such as HTML, CSS, and JavaScript
Mid-Level Python Developer
Position Overview
The mid-level Python developer designs, develops, and maintains applications with minimal supervision. This role requires solid experience in Python frameworks, database integration, and API development. The developer collaborates with cross-functional teams to deliver scalable, efficient solutions.
Responsibilities
- Develop and maintain backend services and applications
- Integrate third-party APIs and databases into applications
- Conduct unit testing and participate in code reviews
- Collaborate with front-end developers to deliver complete solutions
- Write documentation for code and technical processes
- Troubleshoot and resolve software issues independently
Requirements
Hard skills
- Proficiency in Python and frameworks such as Django or Flask
- Experience with SQL and NoSQL databases
- Knowledge of RESTful APIs and microservices architecture
- Familiarity with Docker or other containerization tools
Soft skills
- Strong problem-solving and debugging abilities
- Effective communication with technical and non-technical peers
- Ability to prioritize tasks and meet project deadlines
- Team-oriented with collaborative mindset
Education
- Bachelor’s degree in computer science or related field
Certifications
- PCAP (Certified Associate in Python Programming) recommended
Preferred Qualifications
- Experience with cloud platforms such as AWS or Azure
- Familiarity with CI/CD pipelines and DevOps practices
- Exposure to machine learning libraries or data analysis tools
Senior Python Developer
Position Overview
The senior Python developer leads complex software development projects, guiding junior team members while delivering high-quality, scalable solutions. This role requires advanced coding skills, system design expertise, and the ability to drive improvements in performance and reliability.
Responsibilities
- Lead the design and implementation of large-scale applications
- Mentor junior and mid-level developers through code reviews and guidance
- Ensure software quality with advanced testing practices
- Optimize system performance and scalability
- Collaborate with stakeholders to define technical requirements
- Stay updated on emerging technologies and introduce innovative solutions
Requirements
Hard skills
- Advanced proficiency in Python programming
- Strong expertise with Django, Flask, or FastAPI
- Experience with distributed systems and microservices
- Proficiency with SQL/NoSQL databases and caching strategies
- Solid understanding of security practices in application development
Soft skills
- Leadership and mentoring abilities
- Strong analytical and critical thinking skills
- Excellent written and verbal communication
- Ability to manage multiple projects simultaneously
Education
- Bachelor’s degree in computer science or related discipline
Certifications
- PCPP (Certified Professional in Python Programming) recommended
Preferred Qualifications
- Experience with advanced data processing or machine learning projects
- Familiarity with Kubernetes and large-scale cloud deployments
- Proven track record of leading successful development teams
Lead Python Developer
Position Overview
The lead Python developer oversees the development team, ensuring projects are delivered on time and meet quality standards. This role bridges technical execution and project management, serving as the primary point of contact for development efforts.
Responsibilities
- Manage and coordinate a team of Python developers
- Define project scope, technical requirements, and timelines
- Lead system architecture design and review processes
- Oversee code quality, testing, and deployment practices
- Provide mentorship and professional development to team members
- Collaborate with project managers and stakeholders to align goals
Requirements
Hard skills
- Expert-level knowledge of Python and associated frameworks
- Strong experience with software architecture and system design
- Advanced understanding of cloud technologies and DevOps practices
- Knowledge of CI/CD and automated testing tools
Soft skills
- Strong leadership and decision-making skills
- Excellent project management abilities
- Clear communication across teams and stakeholders
- Ability to inspire collaboration and accountability
Education
- Bachelor’s degree required; master’s degree preferred
Certifications
- PCPP certification recommended
- Cloud-related certifications (AWS Certified Developer, Google Professional Cloud Developer) considered valuable
Preferred Qualifications
- Previous experience leading large-scale enterprise projects
- Contributions to open-source Python projects
- Strong background in Agile or Scrum methodologies
Principal Python Developer
Position Overview
The principal Python developer serves as a technical authority within the organization, driving innovation and establishing best practices across multiple teams. This role combines hands-on development with strategic guidance, ensuring software initiatives meet long-term business objectives.
Responsibilities
- Define technical strategy and influence architectural decisions
- Guide cross-functional teams on advanced Python solutions
- Evaluate and implement new technologies to improve efficiency
- Mentor senior and lead developers to enhance technical expertise
- Oversee the scalability, performance, and security of enterprise systems
- Act as a subject matter expert for executive leadership
Requirements
Hard skills
- Mastery of Python and deep knowledge of frameworks and libraries
- Expertise in large-scale system architecture and distributed computing
- Strong background in cloud-native development and container orchestration
- Advanced skills in automation, performance optimization, and security
Soft skills
- Exceptional leadership and technical vision
- Ability to influence stakeholders and drive organizational change
- Strong presentation and communication abilities
- Innovative mindset with focus on continuous improvement
Education
- Bachelor’s degree required; master’s degree preferred
Certifications
- PCPP certification strongly recommended
- Cloud and architecture-related certifications highly valued
Preferred Qualifications
- Published contributions to technical communities or conferences
- Experience leading global, cross-functional teams
- Expertise in AI, machine learning, or advanced data science applications
Python Software Architect
Position Overview
The Python software architect designs the overall structure and technical direction of Python-based applications and systems. This role ensures that software solutions are scalable, maintainable, and aligned with business goals, serving as the highest-level technical authority on Python development.
Responsibilities
- Define software architecture and design principles for projects
- Evaluate technical trade-offs and choose optimal frameworks and tools
- Collaborate with executives and stakeholders to align technical vision with strategy
- Ensure system scalability, performance, and security from the ground up
- Provide technical leadership across multiple projects and teams
- Document architecture standards and enforce coding best practices
Requirements
Hard skills
- Expert knowledge of Python programming and architecture patterns
- Strong expertise in designing distributed and cloud-native systems
- Proficiency with DevOps, CI/CD, and infrastructure-as-code tools
- Deep understanding of security and compliance standards
Soft skills
- Strategic thinker with systems-level perspective
- Strong leadership and mentoring skills
- Clear communication of complex technical concepts
- Decision-making based on business and technical considerations
Education
- Bachelor’s degree in computer science required; master’s degree preferred
Certifications
- PCPP and cloud architecture certifications recommended (AWS Solutions Architect, Google Cloud Architect)
Preferred Qualifications
- Experience designing global-scale platforms
- Proven record of driving technical innovation
- Active involvement in open-source or Python community leadership