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Freelance Junior Python Developer Jobs in California

Prosum Inc.

Junior Software Engineer

Temecula, CA · On-site

$115K - $120K/yr

Junior Software Engineer Cryptography, Systems & Secure Infrastructure Role Type: Junior Software ... Python-based automation, testing, or developer tooling Candidates are not expected to have ...

CYNET SYSTEMS

Agentic AI Developer

San Jose, CA · On-site

$55 - $60/hr

Deep practical knowledge of Java and Python, demonstrated through significant development ... Guide junior engineers in adopting 'vibe coding' practices and leveraging Gemini-powered agentic ...

Ekiconsult

Junior Software Developer

Daly City, CA · On-site

$100 - $140/hr

Python, Bash, PowerShell, R, or equivalent * Experience with data visualization libraries (e.g., D3.js, Chart.js, Plotly) and/or enterprise BI tools (e.g., Power BI, Tableau) preferred * Familiarity ...

New

SuperDial

Forward Deployed Engineer

Burlingame, CA · On-site

$125K/yr

Help shape engineering best practices, mentoring junior developers as we grow About You: * 3+ years of backend engineering experience, with deep Python expertise * Strong background in building and ...

Jobsbridge

Junior UI Developer II

Los Angeles, CA · On-site

$72K - $93K/yr

... bring junior developers to your level and skill Openness to learn new skills and techniques ... Python or Java Experience with common template frameworks (django, JSP) Working knowledge of ...

Shimento, Inc.

Junior ETL Developer

Vacaville, CA · On-site

$57.75 - $75.50/hr

Job Title: Junior ETL Developer Location: Vacaville, CA (5 Days Onsite) Duration: Long-Term ... Basic knowledge of Python or other scripting languages. Understanding of data warehousing and data ...

Saransh Inc

Junior Gen AI Engineer

Santa Clara, CA · On-site

Role: Junior GenAI Engineer Location: Santa Clara, CA (Onsite from Day 1) Job Type: Contract ... Demonstrate advanced programming expertise, particularly in Python, with deep proficiency in AI ...

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Freelance Junior Python Developer information

What does a freelance junior Python developer do?

A Freelance Junior Python Developer is an entry-level programmer who works independently or through contracts to build, test, and maintain software using the Python programming language. They often assist with coding small features, fixing bugs, and supporting more senior developers on projects. Their tasks may include writing simple scripts, working on websites or applications, and learning best practices in software development. Because they are freelancers, they typically work for multiple clients rather than a single employer.

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

To thrive as a Freelance Junior Python Developer, you need a solid understanding of Python programming, basic software development principles, and familiarity with version control systems, typically supported by a relevant degree or coding bootcamp certification. Competence with tools like Git, basic web frameworks (e.g., Flask or Django), and cloud platforms (such as AWS or Heroku) is often required. Strong communication, time management, and problem-solving abilities help you collaborate with clients and deliver projects on schedule. These skills enable you to produce reliable code, respond effectively to client needs, and build a reputation for professionalism in the competitive freelance market.

What are some common challenges faced by freelance junior Python developers, and how can they be addressed?

Freelance Junior Python Developers often encounter challenges such as managing multiple projects simultaneously, communicating effectively with clients who may have limited technical knowledge, and keeping up with rapidly evolving technologies. To address these challenges, it's important to develop strong organizational skills, set clear expectations with clients, and continuously invest time in learning new libraries and frameworks. Joining online communities and seeking mentorship can also provide valuable support and opportunities for growth.

What is the difference between Freelance Junior Python Developer vs Freelance Data Analyst?

AspectFreelance Junior Python DeveloperFreelance Data Analyst
Required SkillsPython, basic programming, problem-solvingData analysis, SQL, Excel, Python (optional)
Work EnvironmentProject-based, remote or freelance platformsProject-based, remote or freelance platforms
Common IndustriesTech, startups, software developmentFinance, marketing, healthcare
CertificationsNone mandatory, some may have Python coursesData analysis certifications (e.g., Google Data Analytics)

Freelance Junior Python Developers focus on coding and software tasks, while Freelance Data Analysts analyze data sets to provide insights. Both roles often operate remotely and require some technical skills, but their core responsibilities differ significantly.

What freelance jobs can I do with a freelance junior python developer?

A freelance junior Python developer can take on tasks such as building and maintaining web applications, automating workflows, data analysis, and scripting projects. These roles often involve working with frameworks like Django or Flask, and require basic programming skills, problem-solving, and familiarity with version control tools like Git.

What are the most commonly searched types of Junior Python Developer jobs in California?

The most popular types of Junior Python Developer jobs in California are:

What are popular job titles related to Freelance Junior Python Developer jobs in California?

For Freelance Junior Python Developer jobs in California, the most frequently searched job titles are:

What job categories do people searching Freelance Junior Python Developer jobs in California look for?

The top searched job categories for Freelance Junior Python Developer jobs in California are:

What cities in California are hiring for Freelance Junior Python Developer jobs?

Cities in California with the most Freelance Junior Python Developer job openings:

Freelance Junior Python Developer jobs near you

Senior Full Stack Developer (Python, Serverless, AI Fluency)

VYNYL

Los Angeles, CA • On-site

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 13 days ago

Job description

Vynyl's technologists, designers and product strategists are experts at system modernization, new product development, and rescuing projects in distress. We use the best cloud-native and AI-enabled tools, and apply a battle-tested combination of Agile, Lean, and design thinking to collaboratively solve our client's most pressing challenges - and do it right the first time. We often work in regulated industries, such as healthcare, financial services, government and education. Our work helps detect diseases, identify kids who need special educational support, applies AI to support complex legal settlements, helps people access mental health services, and so much more.
The Role
As a Senior Full Stack Developer, you will be a key leader across the entire software development lifecycle, from conceptual design to deployment and monitoring. You will be responsible for building robust, scalable backend services using Python and AWS Serverless technologies (Lambda, DynamoDB, SQS, EventBridge), developing event-sourced systems that provide complete state history and auditability.
A critical component of this role is a demonstrated fluency with modern AI/ML development tools (e.g., GitHub Copilot, Claude Code, agentic coding tools, large language models). We are looking for candidates who not only use these tools daily but can articulate a clear, thoughtful perspective on their limitations, security implications, and the strategic opportunities they create for the engineering profession.
Key Responsibilities
  • Lead the design and implementation of highly scalable, cost-efficient serverless backend services using Python and AWS (Lambda, API Gateway, DynamoDB, SQS, EventBridge).
  • Architect and build event-sourced systems and event-driven pipelines, ensuring reliable message processing, idempotency, and eventual consistency across distributed services.
  • Collaborate with product managers and designers to translate requirements into technical designs and shippable code.
  • Implement best practices for security, logging, monitoring, and infrastructure-as-code (e.g., Terraform or CloudFormation).
  • Perform rigorous code reviews, mentor junior and mid-level engineers, and drive technical excellence across the team.
  • Actively research, propose, and integrate new technologies and patterns, with a focus on optimizing development velocity and system performance.
  • Clearly articulate a professional point of view on how to effectively, securely, and ethically integrate AI tools into the software development lifecycle.
Qualifications
Required
  • 5+ years of professional experience in full-stack software development.
  • Expert-level proficiency in Python for backend development.
  • Strong working proficiency with Node.js.
  • Deep practical experience designing, deploying, and maintaining applications using serverless architectures (preferably AWS Lambda, API Gateway, and managed services).
  • Hands-on experience with DynamoDB, including single-table design patterns, GSI/LSI strategies, and performance optimization at scale.
  • Solid understanding of event sourcing and event-driven architecture patterns, including experience with message brokers or streaming services (e.g., SQS, SNS, EventBridge, or Kinesis).
  • Experience with CI/CD pipelines, automated testing, and Infrastructure-as-Code.
  • Demonstrated Fluency in AI-Assisted Development: Candidates must be able to demonstrate practical, hands-on experience using AI-powered coding tools to achieve specific, quantifiable productivity gains, while also clearly understanding and mitigating the associated risks (e.g., code quality, security, IP concerns).
Nice to Have
  • Experience with advanced AWS services (e.g., Kinesis, SageMaker, Step Functions).
  • Familiarity with TypeScript for robust front-end or Node.js development.
  • Proficiency with a modern front-end framework (e.g., React, Vue, or Angular).
  • Experience working in a regulated or compliance-focused environment.
  • A Bachelor's or Master's degree in Computer Science or a related technical field.
AI and the Evolution of Software Engineering & Ops
All candidates must be prepared to discuss and demonstrate the following during the interview process:
  • Practical AI Tool Usage: Specific examples of AI tools used in professional or personal projects to enhance productivity, solve complex problems, or accelerate development. If you have a preferred agentic tool setup, please share!
  • Understanding of AI Limitations: A clear understanding and articulation of the current technical, ethical, and accuracy limitations of modern AI tools in the engineering context.
  • Strategic AI Opportunity: A viewpoint on how AI tools create new opportunities for software engineering, such as shifting focus from boilerplate code to complex problem-solving or architectural design.
  • Evolution of the Engineering Role: A well-articulated point of view on how your role has already changed (e.g., new workflows, skills, ways of collaborating) due to the introduction of AI and how you expect the role to evolve in the coming years based on your assessment of coming advancements in AI tools and technologies.
Application Process
To apply, please submit your resume and a cover letter. Your cover letter should be informed by the "AI and Forward-Looking Requirements" section above.
The hiring process includes:
  • Initial screening email
  • A Technical Assessment Interview
  • A Panel Interview
Salary Range $140,000 - $175,000
Benefits for Full-Time Employees
Excellent health, dental, vision, and life insurance
Excellent 401(k) plan with annual employer match of 4%

Apply