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Freelance Full Stack Developer React Python Jobs in Goleta, CA

AppFolio

Sr. Machine Learning Engineer

Santa Barbara, CA

$112K - $154K/yr

Voice stack: Hands-on with Voice-to-Voice models and traditional TTS / STT pipelines; understands ... Expert Python, async programming, and WebSockets for real-time, bidirectional streaming. * ML ...

Beyond SOF

Sr Embedded Software Engineer

Santa Barbara, CA · On-site

$138K - $180K/yr

Onsite Role 9/80 schedule $125,000-$180,000 + Bonus + Full Benefits + SIGNING BONUS / PAID ... Experience with communication protocol drivers and stacks (networking, 1553, UART, SPI, I2C, etc.

The Trade Desk

Senior Front End Engineer

Ventura, CA · On-site +1

$174K - $249K/yr

... JavaScript, TypeScript, React, C#, .NET, GraphQL and SQL. Understand system architecture ... Participate in the full software development lifecycle, including planning, implementation, testing ...

W3Global Inc.

Founding Process Engineer

Goleta, CA · On-site

$110K - $150K/yr

We're looking for our first Process Engineer who will own the full PCSEL fabrication process ... Develop and tune dry and wet etch processes for III-V optical material stacks. * Establish process ...

HEICO

Mechanical Engineer

Santa Barbara, CA · On-site

$115K - $150K/yr

Mechanical Engineer Santa Barbara Infrared, Inc. (SBIR) - Santa Barbara, CA About Us Santa Barbara ... and tolerance stack-ups. * Demonstrated experience owning designs through full lifecycle ...

HEICO

Mechanical Engineer

Santa Barbara, CA · On-site

$115K - $150K/yr

Mechanical Engineer Santa Barbara Infrared, Inc. (SBIR) - Santa Barbara, CA About Us Santa Barbara ... and tolerance stack-ups. * Demonstrated experience owning designs through full lifecycle ...

Heico

Mechanical Engineer

Santa Barbara, CA

$115K - $150K/yr

Mechanical Engineer Santa Barbara Infrared, Inc. (SBIR) - Santa Barbara, CA About Us Santa Barbara ... and tolerance stack-ups. * Demonstrated experience owning designs through full lifecycle ...

Teledyne

Test Engineer

Goleta, CA

$120K - $160K/yr

Programming experience (C#, Python, MATLAB, or similar) * Familiarity with FPGA tools (Verilog ... Competitive pay and full benefits starting Day 1 * 401(k) with match + employee stock purchase plan

Teledyne FLIR LLC

Test Engineer

Goleta, CA · On-site

$120K - $160K/yr

Programming experience (C#, Python, MATLAB, or similar) * Familiarity with FPGA tools (Verilog ... Competitive pay and full benefits starting Day 1 * 401(k) with match + employee stock purchase plan

Umbra Lab, Inc.

Engineering Manager

Santa Barbara, CA · On-site

$200 - $250/hr

... stack. Our focus is on first principles engineering, and our mandate is simple: it has to work when ... Experience leading engineering teams through full lifecycle programs, from concept development ...

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Freelance Full Stack Developer React Python information

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How much do freelance full stack developer react python jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for freelance full stack developer react python in Goleta, CA is $63.94, according to ZipRecruiter salary data. Most workers in this role earn between $53.17 and $73.65 per hour, depending on experience, location, and employer.

What does a freelance full stack developer specializing in React and Python do?

A Freelance Full Stack Developer with expertise in React and Python builds both the front-end and back-end components of web applications. On the front end, they use React to create dynamic user interfaces, while on the back end, they leverage Python frameworks like Django or Flask to manage databases, server logic, and APIs. As freelancers, they often work independently with various clients, handling the full software development lifecycle from requirements gathering to deployment and maintenance. Their versatility allows them to deliver complete solutions tailored to each client's needs.

What are the key skills and qualifications needed to thrive as a freelance full stack developer specializing in React and Python?

To excel as a Freelance Full Stack Developer with React and Python, you need strong proficiency in front-end (React.js) and back-end (Python, Django or Flask) development, along with a solid grasp of web architecture and APIs. Familiarity with tools like Git, cloud platforms (AWS, Azure), CI/CD pipelines, and relevant certifications such as AWS Certified Developer can be advantageous. Excellent problem-solving, time management, and client communication skills help you manage projects independently and maintain successful client relationships. These competencies ensure you can deliver high-quality, scalable solutions efficiently while meeting diverse client needs in a competitive freelance market.

How do freelance full stack developers using React and Python typically manage client communication and project timelines?

Freelance Full Stack Developers working with React and Python often juggle multiple projects and clients simultaneously. Effective communication is key—they commonly use project management tools like Trello, Asana, or Jira to keep clients updated on progress and to clarify requirements. Setting clear expectations for timelines, deliverables, and feedback cycles at the outset helps avoid misunderstandings. Proactive status updates and regular check-ins (via email, video calls, or chat platforms like Slack) are standard practices to ensure smooth collaboration and on-time delivery.

What is the difference between Freelance Full Stack Developer React Python vs Freelance Front End Developer React?

AspectFreelance Full Stack Developer React PythonFreelance Front End Developer React
SkillsProficient in React, Python, backend and frontend developmentSpecialized in React for frontend development only
Work EnvironmentHandles both client-side and server-side tasks, often in full project scopeFocuses solely on UI/UX and frontend features
CertificationsOften requires full stack or Python certificationsTypically requires React or frontend development certifications
Industry UsageUsed in projects needing comprehensive backend and frontend solutionsUsed in projects emphasizing user interface and experience

Freelance Full Stack Developer React Python professionals handle both backend and frontend tasks, offering complete solutions. In contrast, Freelance Front End Developers React focus solely on creating engaging user interfaces. Your choice depends on project scope and required expertise.

What job categories do people searching Freelance Full Stack Developer React Python jobs in Goleta, CA look for?

The top searched job categories for Freelance Full Stack Developer React Python jobs in Goleta, CA are:

What cities near Goleta, CA are hiring for Freelance Full Stack Developer React Python jobs?

Cities near Goleta, CA with the most Freelance Full Stack Developer React Python job openings:

Freelance Full Stack Developer React Python jobs near you

Sr. Machine Learning Engineer

Santa Barbara, CA

AppFolio
See more jobs at AppFolioexternal

$112K - $154K/yr

Full-time

Re-posted 4 days ago

AppFolio rating

7.2

Company rating: 7.2 out of 10

Based on 8 frontline employees who took The Breakroom Quiz

184th of 247 rated software companies

Job description

Hi, We're AppFolio
We're innovators, changemakers, and collaborators. We're more than just a software company — we're building the AI-native platform where the real estate industry comes to do business. We're transforming Property Management; how property managers operate, how residents live, and how intelligence flows across an entire industry.
Realm-X is AppFolio's AI-native platform powering this transformation. It enables a new generation of intelligent capabilities across our products, including Realm-X Assistant (copilot), Flows (AI Agentic workflows) and Performers (autonomous AI Agents). Realm-X serves as both a foundation for internal teams to build and scale AI-powered products, and a core layer delivering intelligent, high-impact experiences directly to our customers.
At its core, Realm-X is built on a structured domain ontology and a set of shared business primitives—such as transactions, actions, reports, metrics, and skills—that enable AI systems to deeply understand and operate across the full context of property management workflows. This foundation allows us to build context-aware, action-oriented AI systems that go beyond simple assistance to power real automation and decision-making.
Who We Are Looking For
We're hiring a Senior Machine Learning Engineer to design and ship the next generation of voice and conversational AI agents within Realm-X. This role helps define AppFolio's production voice and chat agent pipelines, working at the intersection of LLM agent frameworks, real-time voice technology, and streaming infrastructure.
You will work with Product, Voice channel, and ML Platform teams to translate cutting-edge agent and voice research into reliable, low-latency, multi-channel experiences that scale across our entire customer base.
Your Impact
  • Ship Voice & Text Agents: Architect and ship voice and text agent pipelines that handle real-time, multi-turn customer interactions.
  • Reasoning vs. Latency: Make principled trade-offs between reasoning depth and latency across frontier LLMs, smaller models, and routing strategies.
  • Lead a Pod: Lead a small pod of ML and platform engineers; raise the bar on agent evaluation, observability, and incident response.
  • Define Quality: Partner with Product and Voice channel teams to define KPIs, eval harnesses, and acceptance criteria for agent quality.
  • Optimize for Voice: Drive selective Small Language Model (SLM) fine-tuning and inference optimization for voice latency and cost.
Qualifications
  • You have shipped production AI agents serving real users in voice and/or text channels.
  • You think in pipelines and systems, not just models.
  • You move fast, deliver impact, and maintain sound engineering judgment.
  • You are humble, collaborative, and low-ego, and you elevate those around you.
  • You value work-life balance as a foundation for sustained high performance.
Must Have
  • Agent frameworks: Deep, shipped experience with LangChain, LangGraph, LangSmith, and LangChain Deep Agents (or equivalent agent frameworks).
  • Voice stack: Hands-on with Voice-to-Voice models and traditional TTS / STT pipelines; understands the trade-offs between end-to-end voice models and modular STT → LLM → TTS architectures.
  • LLM fluency: Strong grasp of LLM reasoning behavior, tool use, structured output, and reasoning-vs-latency trade-offs across providers.
  • Telephony & cloud: Production experience with Twilio (or comparable telephony) and AWS.
  • Engineering: Expert Python, async programming, and WebSockets for real-time, bidirectional streaming.
  • ML fundamentals: Solid foundation in deep learning, model evaluation, and inference optimization; able to deploy with Docker on AWS.
  • Leadership: Demonstrated ability to lead a small team, mentor engineers, and partner credibly with Product and Design.
Nice to Have
  • Experience fine-tuning Small Language Models for domain-specific voice applications.
  • Familiarity with RAG over structured business data and tool-using agents over API surfaces.
  • Prior experience in regulated or customer-facing industries with strict reliability requirements.
  • Publicly verifiable work on GitHub, in open-source agent frameworks, or in community competitions.
Location
Find out more about our locations by visiting our site. 
All late-stage candidates complete an in-person meeting with an AppFolian as part of our hiring process.
Compensation & Benefits
The compensation that we reasonably expect to pay for this role is: 167,200 - 209,000 base pay. The actual compensation for this role will be determined by a variety of factors, including but not limited to the candidate’s skills, education, experience, and internal equity.
Please note that compensation is just one aspect of a comprehensive Total Rewards package. The compensation range listed here does not include additional benefits or any discretionary bonuses you may be eligible for based on your role and/or employment type.
Regular full-time employees are eligible for benefits - see here.

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