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Part Time Full Stack Developer Contract Jobs in California

Horizontal Talent

Email Developer (Part-Time)

San Francisco, CA · Remote

$113 - $160/hr

  • Medical

  • Dental

  • Vision

  • Retirement

Join a fast-moving lifecycle marketing technology team as an Email Developer, where you'll own and ... Familiarity with CJK font stacks, line-height adjustments, and text expansion planning * Experience ...

New

RocketRide Inc.

AI Developer Intern

San Francisco, CA · On-site

$22.75 - $29.75/hr

San Francisco (Hybrid) | Part-time or Full-time, 3 months, with potential to convert About ... Hands-on work with cutting-edge agentic AI tools, frameworks, and infrastructure - the real stack ...

Belcan

Rotor Systems- Responsible Engineer

Brisbane, CA · On-site

$137K/yr

Contract-to-Hire or Direct hire Start Date: ASAP Keywords: #Brisbanejobs; #RotorSystemsjobs ... stack-up and GD Python/Matlab; 2D/3D CAD Responsibilities ● Take sole ownership of hardware ...

breakwater

Ruby Developer

Santa Rosa, CA

Expanding development company looking for a full or part time programmer to work in downtown Santa Rosa. Two years or more of RoR experience requested, having published a gem is a bonus. Other ...

Belcan

Rotor Systems- Responsible Engineer

Brisbane, CA · On-site

$137K/yr

Contract-to-Hire or Direct hire Start Date: ASAP Keywords: #Brisbanejobs; #RotorSystemsjobs ... stack-up and GD Python/Matlab; 2D/3D CAD Responsibilities ● Take sole ownership of hardware ...

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All JobsFull Stack Developer Contract JobsPart Time Full Stack Developer Contract JobsPart Time Full Stack Developer Contract Jobs in California

Part Time Full Stack Developer Contract information

What is a part time full stack developer contract?

A Part Time Full Stack Developer Contract is a work arrangement where a developer is hired on a contract basis to handle both front-end and back-end development tasks, but works fewer hours than a full-time employee. This type of contract typically offers flexibility, allowing developers to work on specific projects or for a set number of hours per week. Employers benefit by accessing specialized skills without committing to a full-time position, while developers can balance multiple clients or personal commitments. Responsibilities may include designing user interfaces, building databases, writing APIs, and maintaining applications across the technology stack.

What are the key skills and qualifications needed to thrive as a part time full stack developer on contract?

To thrive as a Part Time Full Stack Developer on contract, you need strong proficiency in both front-end (e.g., HTML, CSS, JavaScript frameworks like React or Angular) and back-end (e.g., Node.js, Python, or Java) development, along with a relevant degree or equivalent experience. Familiarity with cloud platforms (AWS, Azure), version control systems (Git), and deployment pipelines, as well as experience with RESTful APIs and databases, is typically expected. Effective time management, communication, and problem-solving skills are essential for collaborating remotely and meeting project deadlines. These skills enable developers to deliver high-quality, scalable solutions efficiently while adapting to varying client needs and project scopes.

How do part-time full stack developer contractors typically balance multiple projects and communicate with clients or teams?

Part-time full stack developer contractors often juggle several projects or clients simultaneously, which requires strong time management and organizational skills. Communication is usually handled through regular virtual meetings, messaging platforms, and project management tools to ensure alignment with project goals and timelines. Contractors are expected to proactively update stakeholders on progress, clarify requirements, and address any blockers promptly. Successfully managing these aspects helps maintain trust and ensures smooth collaboration, even with limited weekly hours.

What is the difference between Part Time Full Stack Developer Contract vs Part Time Front End Developer Contract?

AspectPart Time Full Stack Developer ContractPart Time Front End Developer Contract
Required SkillsProficiency in both front-end and back-end technologies, such as JavaScript, HTML, CSS, Node.js, and databasesSpecialized in front-end technologies like HTML, CSS, JavaScript, and frameworks such as React or Angular
Work EnvironmentTypically works on full project stacks, often in collaborative teams across multiple layers of developmentFocuses on user interface and experience, often working closely with designers and back-end teams
Industry UsageCommon in startups and tech companies requiring versatile developers for various project partsPopular in agencies and companies emphasizing UI/UX design and front-end innovation

In summary, a Part Time Full Stack Developer Contract handles both front-end and back-end tasks, offering versatility, while a Part Time Front End Developer Contract specializes in user interface development, focusing on visual and interactive elements.

What are popular job titles related to Part Time Full Stack Developer Contract jobs in California?

For Part Time Full Stack Developer Contract jobs in California, the most frequently searched job titles are:

What job categories do people searching Part Time Full Stack Developer Contract jobs in California look for?

The top searched job categories for Part Time Full Stack Developer Contract jobs in California are:

What cities in California are hiring for Part Time Full Stack Developer Contract jobs?

Cities in California with the most Part Time Full Stack Developer Contract job openings:

Part Time Full Stack Developer Contract jobs near you
Infographic showing various Part Time Full Stack Developer Contract job openings in California as of August 2026, with employment types broken down into 86% Full Time, 7% Part Time, 6% Contract, and 1% Nights. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution.

Senior OSAT Engineer (Part-Time, Contract)

Altera

San Jose, CA

$159K - $230K/yr

Part-time

Re-posted yesterday

Job description

Job Details:Job Description:

About Altera

Altera is a global leader in FPGA and programmable logic solutions, enabling innovation in data center, communications, automotive, aerospace, and industrial markets. As we expand manufacturing capabilities for next-generation programmable devices, we are strengthening our OSAT engineering organization to deliver world-class backend manufacturing performance.

Role Summary

We are seeking a highly skilled Senior OSAT Engineer to drive outsourced assembly and test engineering activities across Altera's global supplier network. You will lead NPI readiness, yield optimization, cost improvements, and qualification activity for packaging and test flows supporting Altera's FPGA/SoC product lineup. This role requires strong semiconductor backend engineering experience, hands-on problem solving, and the ability to collaborate closely with OSAT partners and cross-functional stakeholders.

Key Responsibilities

  • Lead technical engagement with OSAT suppliers on assembly and test process development, yield ramp, quality improvement, and volume manufacturing readiness.

  • Drive new product introduction (NPI) from engineering builds through production release, ensuring OSAT capability meets electrical/thermal/mechanical requirements for FPGA and SoC products.

  • Optimize packaging and test architectures for performance, cost, and reliability: flip-chip BGA, high-pin-count packages, substrate technologies, wafer-level solutions, burn-in/FT coverage.

  • Monitor and improve backend yield performance using data-driven analysis; identify systemic issues and lead root cause / corrective actions.

  • Partner with Test Engineering, Packaging, Product Engineering, DFM, and Quality teams on process optimization, failure analysis, and manufacturability improvements.

  • Implement and maintain process control systems, SPC methodologies, automation improvements, and lean manufacturing principles at OSAT.

  • Support cost reduction initiatives including BOM optimization, process simplification, and cycle time improvements.

  • Track supplier performance metrics (yield, DPPM, cost, cycle time, OEE) and provide updates with risk assessments and mitigation plans.

  • Lead or support reliability testing and package qualification activities aligned to industry standards (JEDEC, IPC, AEC-Q).

  • Maintain strong technical relationship and communication cadence with OSAT partners to ensure transparency, collaboration, and escalation management.

Salary Range

The pay range below is for Bay Area California only. This is a part-time, hourly position that pays the equivalent hourly rate of the below salary range. Actual salary may vary based ona number offactors including job location, job-related knowledge, skills, experiences,trainings, etc.

$159,700 - $230,000USD

We use artificial intelligence to screen, assess, or select applicants for the position.Applicants must be eligible for any required U.S. export authorizations.

Qualifications:Qualifications:

Minimum Requirements

  • Bachelor's degree in Electrical Engineering, Materials Science, Mechanical Engineering, or related field.

  • 10+ years of semiconductor assembly, packaging, or test engineering experience.

  • Hands-on experience with OSAT manufacturing environments, including wafer finishing, substrate attach, interconnect packaging, test, and burn-in.

  • Strong technical understanding of backend manufacturing flows: flip-chip, wire bond, underfill, molding, final test, reliability stress and analysis.

  • Proven ability to analyze yield, reliability, and cost data to drive engineering decisions and improvements.

  • Demonstrated success working with international suppliers and cross-functional teams.

  • Strong written and verbal communication skills, including technical reporting and supplier engagement.

Preferred Qualifications

  • FPGA, ASIC, or SoC backend experience, particularly high-pin-count or high-power devices.

  • Experience in automotive or high-reliability product qualifications (AEC-Q / ISO standards).

  • Familiarity with advanced packaging: 2.5D/3D, fan-out WLP, heterogeneous integration.

  • Knowledge of supply chain risk mitigation, dual sourcing, and volume scaling strategies.

  • Experience with automation, traceability systems, and smart factory/manufacturing analytics.

Job Type: RegularShift:Shift 1 (United States of America)Primary Location:San Jose, California, United StatesAdditional Locations:Posting Statement:All qualified applicants will receive consideration for employment without regard to race, color, religion, religious creed, sex, national origin, ancestry, age, physical or mental disability, medical condition, genetic information, military and veteran status, marital status, pregnancy, gender, gender expression, gender identity, sexual orientation, or any other characteristic protected by local law, regulation, or ordinance.

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