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Contractual Freelance Python Programmer Jobs in California

WorldQuant

Senior Python Software Engineer

Los Angeles, CA · On-site

$130K - $176K/yr

A minimum of 7 years of writing production-quality code in Python on Linux platform * Candidate ... The policy also describes legal and contractual limitations on these rights. The specific rights ...

Solomon Page

Lead Data Engineer

San Francisco, CA · On-site

$134K - $161K/yr

Strong Python programming skills for data engineering and automation. * Experience with data ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

Navigate AI

Fullstack Engineer

San Francisco, CA · On-site

$100 - $130/hr

Work across the stack [React, Typescript, Python, Augmented Reality and of course, AI] * Prototype ... Have some product management, founder, or freelance experience * Enjoy debating architecture ...

Solomon Page

Data Engineer

Pleasanton, CA · On-site

$60 - $65/hr

Preferred experience with Apache Airflow, Apache Kafka, PySpark, and Python. * Familiarity with ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

Handshake

Senior Security Engineer (IAM)

San Francisco, CA · On-site

$130 - $160/hr

... freelance AI training gigs to first internships to full-time careers and beyond. This unique value ... Engineer integration layers between identity platforms and internal applications using Python, REST ...

Teledyne

RF Electrical Engineer

Rancho Cordova, CA · On-site

$58K - $78K/yr

Ensure compliance with corporate, government, and contractual requirements What you need * Master ... Python programming is a plus (advantage) * Understanding of ISO/AS9100 and Lean Six Sigma ...

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Contractual Freelance Python Programmer information

What is the difference between Contractual Freelance Python Programmer vs Python Developer?

AspectContractual Freelance Python ProgrammerPython Developer
CredentialsTypically self-taught or with certifications in Python; no formal degree requiredOften holds a degree in Computer Science or related field; certifications are common
Work EnvironmentRemote, project-based, freelance contractsFull-time or part-time employment, in-house or remote
Employer & Industry UsageHired by multiple clients across industries on a contractual basisEmployed by a single company, working on internal projects

In summary, a Contractual Freelance Python Programmer works independently on short-term projects for various clients, often remotely, without long-term employment commitments. In contrast, a Python Developer is typically employed full-time by a company, focusing on ongoing development within a team. Both roles require Python skills, but their work arrangements and employment status differ significantly.

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Contractual Freelance Python Programmer jobs near you

Senior Python Software Engineer

WorldQuant

Los Angeles, CA • On-site

$130K - $176K/yr

Other

Posted 6 days ago

Job description

WorldQuant develops and deploys systematic financial strategies across a broad range of asset classes and global markets. We seek to produce high-quality predictive signals (alphas) through our proprietary research platform to employ financial strategies focused on market inefficiencies. Our teams work collaboratively to drive the production of alphas and financial strategies - the foundation of a balanced, global investment platform.
WorldQuant is built on a culture that pairs academic sensibility with accountability for results. Employees are encouraged to think openly about problems, balancing intellectualism and practicality. Excellent ideas come from anyone, anywhere. Employees are encouraged to challenge conventional thinking and possess an attitude of continuous improvement.
Our goal is to hire the best and the brightest. We value intellectual horsepower first and foremost, and people who demonstrate an outstanding talent. There is no roadmap to future success, so we need people who can help us build it.
Technologists at WorldQuant research, design, code, test and deploy firmwide platforms and tooling while working collaboratively with researchers. Our environment is relaxed yet intellectually driven. We seek people who think in code and are motivated by being around like-minded people.
The Role: Our group is responsible for building software enabling both the large-scale quantitative research operations that drive WorldQuant's platform and the production of our portfolio. The team is currently embarking on a multi-year journey to provide a powerful, scalable, and efficient platform to drive the firm's next decade of growth. We are looking for someone who can own some of the unique technical challenges inherent in the problem and who can bring solid experience and perspective to the team.
What You'll Bring:
A successful candidate will possess:

  • A minimum of 7 years of writing production-quality code in Python on Linux platform

  • Candidate must be willing to learn C++. Experience in C++ is a strong plus

  • Candidate must have strong interest and motivation to work with machine learning, deep learning, backtesting platform design and development technologies. Prior experience is not required but will be considered as a strong plus.

  • Strong understanding and experience with Linux system programming fundamentals

  • Ability to develop large-scale, distributed systems

  • Strong understanding of data structures, algorithms, high-performance application design, and concurrency patterns.

  • Self-motivated and able to work independently with minimal direction

  • Proficiency in English


An outstanding candidate will also have experience with one or more of:

  • Developing systems for managing and performing computation on large-scale graph data

  • Streaming / dataflow systems

  • Candidates need not have prior experience in financial services.


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By submitting this application, you acknowledge and consent to terms of the WorldQuant Privacy Policy. The privacy policy offers an explanation of how and why your data will be collected, how it will be used and disclosed, how it will be retained and secured, and what legal rights are associated with that data (including the rights of access, correction, and deletion). The policy also describes legal and contractual limitations on these rights. The specific rights and obligations of individuals living and working in different areas may vary by jurisdiction.
Copyright 2025 WorldQuant, LLC. All Rights Reserved.
WorldQuant is an equal opportunity employer and does not discriminate in hiring on the basis of race, color, creed, religion, sex, sexual orientation or preference, age, marital status, citizenship, national origin, disability, military status, genetic predisposition or carrier status, or any other protected characteristic as established by applicable law.

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