Integrate data from various back-end sources and databases. Gather and refine specifications and ... PHP, Python, C++, Java, or Ruby on Rails A solid understanding of how web applications work ...
Integrate data from various back-end sources and databases. Gather and refine specifications and ... PHP, Python, C++, Java, or Ruby on Rails A solid understanding of how web applications work ...
Software Engineer II
San Francisco, CA · On-site +1
Extend and maintain scalable systems written in Java, Python, Go, and PHP * Responsible for the ... Professional backend microservice experience (Java preferred) * 3+ years application development ...
Software Engineer II
San Francisco, CA · On-site +1
Extend and maintain scalable systems written in Java, Python, Go, and PHP * Responsible for the ... Professional backend microservice experience (Java preferred) * 3+ years application development ...
Senior Software Engineer
San Francisco, CA · On-site
$144K - $190K/yr
Extend and maintain scalable systems written in Java, Python, Go, and PHP * Responsible for the ... Professional backend microservice experience (Java preferred) * 3+ years application development ...
Senior Software Engineer
San Francisco, CA · On-site
$144K - $190K/yr
Extend and maintain scalable systems written in Java, Python, Go, and PHP * Responsible for the ... Professional backend microservice experience (Java preferred) * 3+ years application development ...
Senior Java Developer + Kafka + Cassandra + Spring Developers - ONLY EAD or USC or GC
San Francisco, CA · On-site
$67.50 - $86/hr
... backend development. Experience with Cassandra, also know data modeling and Cassandra High ... Distributed data is written in Java and PHP. Very complex systems, must have distributed systems ...
Senior Java Developer + Kafka + Cassandra + Spring Developers - ONLY EAD or USC or GC
San Francisco, CA · On-site
$67.50 - $86/hr
... backend development. Experience with Cassandra, also know data modeling and Cassandra High ... Distributed data is written in Java and PHP. Very complex systems, must have distributed systems ...
UI/UX Frontend Lead Developer
San Francisco, CA · On-site
$60 - $65/hr
Collaborate with UX, product, and backend teams * Conduct code reviews and provide technical ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...
UI/UX Frontend Lead Developer
San Francisco, CA · On-site
$60 - $65/hr
Collaborate with UX, product, and backend teams * Conduct code reviews and provide technical ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...
Software Developer, GO Systems
Menlo Park, CA · Remote
$171K/yr
Lead the design and implementation of scalable full-stack solutions using PHP/Hack and JavaScript ... backend, and data layers * 8+ years of experience driving end-to-end execution of complex, multi ...
Software Developer, GO Systems
Menlo Park, CA · Remote
$171K/yr
Lead the design and implementation of scalable full-stack solutions using PHP/Hack and JavaScript ... backend, and data layers * 8+ years of experience driving end-to-end execution of complex, multi ...
Staff Software Engineer
San Francisco, CA · On-site +1
Create, extend, and maintain scalable systems written in Java, Python, Go, and PHP * Provide ... Backend microservice experience (Java and python preferred) * Performance and optimization problems ...
Staff Software Engineer
San Francisco, CA · On-site +1
Create, extend, and maintain scalable systems written in Java, Python, Go, and PHP * Provide ... Backend microservice experience (Java and python preferred) * Performance and optimization problems ...
Sr Software Engineer - Core Web
San Francisco, CA · On-site
$144K - $189K/yr
... backend engineering ... and DevOps/SRE teams to build and deploy high-performing services Help build a culture of ...
Sr Software Engineer - Core Web
San Francisco, CA · On-site
$144K - $189K/yr
... backend engineering ... and DevOps/SRE teams to build and deploy high-performing services Help build a culture of ...
Production Engineer
$184K/yr
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Production Engineer
$184K/yr
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Own back-end services which handle fleet management, front-end services such as WhatsApp ... Java, Python, C++, PHP/Hack, Rust, Go) * Experience learning software, frameworks and APIs
Sr Software Engineer - Core Web
San Francisco, CA · On-site
$144K - $189K/yr
... DevOps/SRE teams to build and deploy high-performing services • Help build a culture of ... PHP • Experience with E2E frameworks - with familiarity with Cypress and Synergy • Working ...
Sr Software Engineer - Core Web
San Francisco, CA · On-site
$144K - $189K/yr
... DevOps/SRE teams to build and deploy high-performing services • Help build a culture of ... PHP • Experience with E2E frameworks - with familiarity with Cypress and Synergy • Working ...
Sr Software Engineer, Employee Experience & Productivity
Sunnyvale, CA · On-site
$143K - $189K/yr
This role is back-end weighted: you'll spend most of your time designing and shipping secure ... PHP, design patterns, and dependency management with Composer Proven ability to own production ...
Sr Software Engineer, Employee Experience & Productivity
Sunnyvale, CA · On-site
$143K - $189K/yr
This role is back-end weighted: you'll spend most of your time designing and shipping secure ... PHP, design patterns, and dependency management with Composer Proven ability to own production ...
... asp, php) JavaScript both jQuery and ext js frameworks Past experience with enterprise CMS (CQ5 ... Programming, Model View Controller paradigm Develop applications that are deployed to the J2EE ...
... asp, php) JavaScript both jQuery and ext js frameworks Past experience with enterprise CMS (CQ5 ... Programming, Model View Controller paradigm Develop applications that are deployed to the J2EE ...
This role is back-end weighted: you'll spend most of your time designing and shipping secure ... PHP, design patterns, and dependency management with Composer Proven ability to own production ...
This role is back-end weighted: you'll spend most of your time designing and shipping secure ... PHP, design patterns, and dependency management with Composer Proven ability to own production ...
Experience with RESTful APIs, JSON, and integrating front-end interfaces with backend services ... Solid experience with PHP development Additional Information We believe that great things happen ...
Quick apply
Experience with RESTful APIs, JSON, and integrating front-end interfaces with backend services ... Solid experience with PHP development Additional Information We believe that great things happen ...
Experience with RESTful APIs, JSON, and integrating front-end interfaces with backend services ... Solid experience with PHP development Additional Information We believe that great things happen ...
Experience with RESTful APIs, JSON, and integrating front-end interfaces with backend services ... Solid experience with PHP development Additional Information We believe that great things happen ...
Freelance Php Backend Developer information
See San Ramon, CA salary details
$13.43 - $20.78
0% of jobs
$20.78 - $28.13
1% of jobs
$28.13 - $35.48
5% of jobs
$35.48 - $42.83
6% of jobs
$42.83 - $50.19
7% of jobs
$52.39 is the 25th percentile. Wages below this are outliers.
$50.19 - $57.54
16% of jobs
The median wage is $63.91 / hr.
$57.54 - $64.89
16% of jobs
$64.89 - $72.24
18% of jobs
$74.78 is the 75th percentile. Wages above this are outliers.
$72.24 - $79.59
14% of jobs
$79.59 - $86.94
11% of jobs
$86.94 - $94.29
5% of jobs
$13
$64
$94
How much do freelance php backend developer jobs pay per hour?
What are the key skills and qualifications needed to thrive as a freelance PHP backend developer?
How do freelance PHP backend developers typically manage client communication and project expectations?
What is the difference between Freelance Php Backend Developer vs Freelance Java Backend Developer?
| Aspect | Freelance Php Backend Developer | Freelance Java Backend Developer |
|---|---|---|
| Required Credentials | PHP certifications, web development experience | Java certifications, software development experience |
| Work Environment | Web servers, CMS platforms, small to medium projects | Enterprise systems, large-scale applications, cloud environments |
| Employer & Industry Usage | Web agencies, startups, small businesses | Financial institutions, tech companies, large enterprises |
| Common Search & Comparison | Yes | Yes |
Freelance Php Backend Developers typically work on web-based projects using PHP, suitable for small to medium-sized applications. Freelance Java Backend Developers focus on enterprise-level systems and large-scale applications. The choice depends on project scope and industry needs.
What does a freelance PHP backend developer do?

Full-time
Re-posted 14 hours ago
Job description
Centrillion is creating transformative genomic technologies leveraging engineering and biochemistry breakthroughs to accelerate discovery and reveal the real genome that has thus far been obscured by its complexity and the limitations of existing technologies. Our team of scientists and engineers is committed to making a new generation of genomic technologies accessible and affordable for a multitude of previously unapproachable apps. Centrillion is backed by venture capital and strategic investors and is located at Palo Alto, CA, at the innovation center of Silicon Valley and close to Stanford University.
Centrillion Technologies is seeking a full stack developer/software engineer to administer our websites. The developer will post content and manage sites, maintaining Web design appropriate for desktop and mobile platforms. Good attention to detail, creativity and knowledge of information technology are all highly sought-after qualities for this position. The successful candidate will write well-designed, testable, efficient code using best software development practices.
Responsibilities
Establishes Web application specifications by analyzing access, information, and security requirements; designing system infrastructure.
Establishes Web applications by planning and executing the selection, installation, configuration, and testing of server hardware, software, and operating system management; defining system and operational policies and procedures.
Maintains Web applications performance by performing system monitoring and analysis, and performance tuning; troubleshooting system hardware, software, and operating and system management systems; designing and running system load/stress testing; escalating application problems to vendor.
Manages Web security by developing system for access, monitoring, control, and evaluation; establishing and testing disaster recovery policies and procedures; completing back-ups; maintaining documentation.
Write well-designed, testable, efficient code by using best software development practices.
Create user-friendly interface by using standard HTML5/CSS3 practices.
Integrate data from various back-end sources and databases.
Gather and refine specifications and requirements based on technical needs.
Create and maintain software documentation.
Be responsible for maintaining, expanding, and scaling website.
Stay plugged into emerging technologies/industry trends and apply them into operations and activities.
Cooperate with web designers to match visual design and content intent.
Upgrades Web system by conferring with vendors and services; developing, testing, evaluating, and installing enhancements and new software.
Meets financial requirements by submitting information for budgets; monitoring expenses.
Updates job knowledge by tracking emerging internet technologies; participating in educational opportunities; reading professional publications; maintaining personal networks; participating in professional organizations.
Accomplishes organization goals by accepting ownership for accomplishing new and different requests; exploring opportunities to add value to the organization.
BS in computer science or a related field
5+ years experience with enterprise software programming and in-depth knowledge of modern HTML5/CSS3, Javascript
Familiarity with at least one of the following programming languages: PHP, Python, C++, Java, or Ruby on Rails
A solid understanding of how web applications work including security, session management, cookie, caching, and best development practices
Demonstrated knowledge of relational database systems, Object Oriented Programming and web application development
Hands-on experience with server management and maintenance
Basic knowledge of Search Engine Optimization process
Aggressive problem diagnosis and creative problem solving skills
Strong organizational skills to juggle multiple tasks within the constraints of timelines and budgets with business acumen
Flexible, able to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques
Experience in communications, design, and WordPress is a plus
All your information will be kept confidential according to EEO guidelines.
About Centrillion Technologies
Sourced by ZipRecruiter
Company size
11 - 50 Employees
Headquarters location
Palo Alto, CA, US
Year founded
2009