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Freelance Sql Developer Jobs in California (NOW HIRING)

Solomon Page

Lead Data Engineer

San Francisco, CA · On-site

$134K - $161K/yr

Build and optimize cloud-native data solutions using Dataproc, BigQuery, SQL, and dbt. * Design ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

Solomon Page

Data Engineer

Pleasanton, CA · On-site

$60 - $65/hr

Expert knowledge of Dataproc, BigQuery, SQL, and dbt. * Experience designing modern ETL/ELT ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

Solomon Page

Manager Data Engineer

San Francisco, CA · On-site

$90/hr

Proficiency in SQL, NoSQL databases, and data warehousing solutions * Experience with cloud-based ... Knowledge of DevOps practices for data engineering and CI/CD pipelines * Strong understanding of ...

Solomon Page

Project Manager

El Segundo, CA · On-site

$68/hr

SQL literacy - able to query, pull, and validate data independently (even if not writing complex ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

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Freelance Sql Developer information

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$20

$51

$71

How much do freelance sql developer jobs pay per hour?

As of Aug 17, 2026, the average hourly pay for freelance sql developer in California is $51.91, according to ZipRecruiter salary data. Most workers in this role earn between $42.93 and $58.85 per hour, depending on experience, location, and employer.

What is a freelance SQL developer?

Freelance SQL developers are independent professionals who specialize in designing, developing, and managing databases using Structured Query Language (SQL). They work with clients on a project or contract basis, rather than as full-time employees, to build, optimize, and maintain database systems. Their responsibilities often include writing SQL queries, ensuring data integrity, optimizing database performance, and sometimes integrating databases with applications. Freelance SQL developers typically have expertise in various database management systems such as MySQL, PostgreSQL, Microsoft SQL Server, or Oracle. Their flexibility allows businesses to access specialized database skills as needed without hiring permanent staff.

What does a freelance SQL developer do?

As a freelance SQL developer, your duties are to provide your clients with database analysis and assistance. You discuss with your clients their needs and goals, develop a budget and timeline, and produce deliverables according to your contract. As part of this, you develop test scenarios for the database, write code for database queries, and create the specific tools and applications that end-users use to access information from the database. You also work with other developers to make database storage and information access more efficient for users. Some SQL developers have cybersecurity responsibilities, such as ensuring database and network security.

What are the key skills and qualifications needed to thrive as a freelance SQL developer, and why are they important?

To thrive as a Freelance SQL Developer, you need expertise in SQL programming, database design, and query optimization, often supported by a degree in computer science or related certifications. Familiarity with database management systems like MySQL, SQL Server, PostgreSQL, and tools such as SSIS or SQL Profiler is typically required. Strong problem-solving, time management, and effective communication skills help freelancers manage multiple projects and client expectations. These skills ensure the delivery of efficient, reliable database solutions tailored to diverse client needs in a competitive freelance market.

What are some common challenges freelance SQL developers face when working with multiple clients simultaneously?

Freelance SQL developers often juggle diverse projects across different industries, which can lead to challenges such as adapting to varying database architectures, understanding unique business requirements, and managing multiple deadlines. Coordinating communication with clients who may have different levels of technical knowledge can also be demanding. To overcome these challenges, strong organizational skills, clear documentation practices, and proactive client updates are essential for maintaining project quality and client satisfaction.

What is the difference between Freelance Sql Developer vs Freelance Data Analyst?

AspectFreelance Sql DeveloperFreelance Data Analyst
Required SkillsSQL, database management, query optimizationSQL, data visualization, statistical analysis
Work EnvironmentRemote or client sites, project-basedRemote or client sites, project-based
CertificationsSQL certifications, database certificationsData analysis certifications, SQL certifications
Industry UsageIT, software development, database managementBusiness intelligence, marketing, finance

Freelance Sql Developers focus on designing, optimizing, and maintaining databases using SQL, often working closely with IT teams. Freelance Data Analysts interpret data, create reports, and provide insights, frequently utilizing SQL as part of their toolkit. While both roles require SQL skills, their primary focus and industry applications differ, making each suitable for different client needs.

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Freelance Sql Developer jobs near you
Infographic showing various Freelance Sql Developer job openings in California as of August 2026, with employment types broken down into 74% Full Time, 9% Part Time, and 17% Contract. Highlights an 57% In-person, and 43% Remote job distribution, with an average salary of $107,974 per year, or $51.9 per hour.

Lead Data Engineer

Solomon Page

San Francisco, CA • On-site

$134K - $161K/yr

Contractor

Medical, Dental, Retirement

Posted 21 days ago

Job description

We are seeking a hands-on Lead Data Engineer to join the Data & AI Supply Chain organization and drive the design, development, and delivery of enterprise-scale data products on Google Cloud Platform (GCP). This role will support Supply Chain initiatives across Sourcing, Transportation, and Warehouse Management Systems (WMS) by building scalable cloud-native data solutions that enable advanced analytics and AI-driven decision-making. The ideal candidate will bring deep expertise in modern data engineering, cloud-native architectures, ETL/ELT development, and enterprise data modeling while collaborating with cross-functional business and technology teams.
  • Rate Range: $5065/hr on W2 (DOE)

Responsibilities:
  • Design, develop, and implement scalable data pipelines and enterprise data products on Google Cloud Platform (GCP).
  • Build and optimize cloud-native data solutions using Dataproc, BigQuery, SQL, and dbt.
  • Design scalable data models supporting analytical and operational reporting requirements.
  • Develop robust ETL/ELT pipelines to ingest, transform, and publish data from enterprise systems.
  • Collaborate with Product Managers, Business Analysts, Solution Architects, Data Architects, and business stakeholders to translate business requirements into scalable technical solutions.
  • Lead technical design discussions and perform code reviews to ensure engineering quality and best practices.
  • Optimize cloud-based data processing for performance, scalability, reliability, and cost efficiency.
  • Implement monitoring, testing, and operational best practices for production workloads.
  • Build reusable frameworks, engineering standards, and technical documentation.
  • Support production issue resolution and continuous improvement initiatives.
  • Participate in Agile ceremonies including sprint planning, backlog refinement, and estimation.
  • Mentor junior engineers and promote engineering best practices.

Required Qualifications:
  • 8+ years of experience in Data Engineering with demonstrated technical leadership.
  • Strong hands-on experience building enterprise data platforms on Google Cloud Platform (GCP).
  • Expert-level experience with Dataproc, BigQuery, SQL, and dbt.
  • Strong understanding of modern ETL/ELT architecture and large-scale data processing.
  • Experience designing dimensional, normalized, and analytical data warehouse models.
  • Experience building scalable cloud-native data pipelines.
  • Experience with Git, CI/CD pipelines, and software engineering best practices.
  • Strong analytical, troubleshooting, and problem-solving skills.
  • Excellent communication and stakeholder collaboration skills.
  • Experience working within Agile development environments.

Required Skills:
  • Google Cloud Platform (GCP)
  • Dataproc
  • BigQuery
  • SQL
  • dbt
  • ETL / ELT
  • Data Modeling
  • Cloud Data Engineering
  • Git
  • CI/CD
  • Agile Methodologies

Technical Skills:
  • Google Cloud Platform (GCP)
  • Dataproc
  • BigQuery
  • SQL
  • dbt
  • Git
  • CI/CD Pipelines
  • Data Warehousing
  • ETL / ELT Development
  • Cloud-native Data Architecture

Preferred Qualifications:
  • Experience with Apache Airflow.
  • Experience integrating Apache Kafka or other streaming technologies.
  • Hands-on experience with PySpark.
  • Strong Python programming skills for data engineering and automation.
  • Experience with data quality, metadata management, and data governance.
  • Retail or Apparel industry experience.
  • Experience supporting Supply Chain, Transportation, Logistics, Warehouse Management Systems (WMS), or Distribution Center operations.

If you meet the required qualifications and are interested in this role, please apply today.
The Solomon Page Distinction
Solomon Page offers a comprehensive benefit program for hourly employees. We pride ourselves on offering medical, dental, 401(k), direct deposit and commuter benefits to our employees, including freelancers - which sets us apart in the industries we serve.
About Solomon Page
Founded in 1990, Solomon Page is a specialty niche provider of staffing and executive search solutions across a wide array of functions and industries. The success of Solomon Page reflects an organic growth strategy supported by a highly entrepreneurial culture. Acting as a strategic partner to our clients and candidates, we focus on providing customized solutions and building long-term relationships based on trust, respect, and the consistent delivery of excellent results. For more information and additional opportunities, visit: solomonpage.com and connect with us on Facebook , and LinkedIn .
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