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1\. Role Overview Mercor is collaborating with a leading AI organization to identify experienced Database Administrators for a high-priority training and evaluation project. Freelancers will be tasked with performing a wide range of real-world database operations to support AI model development focused on SQL, systems administration, and performance optimization. This short-term contract is ideal for experts ready to bring practical, production-grade insights to frontier AI training efforts. * * * 2\. Key Responsibilities - Design and optimize complex SQL queries using EXPLAIN plans and indexing strategies - Implement schema changes with CREATE/ALTER statements and rollback planning - Configure and validate automated backup and restoration procedures - Manage user roles and permissions following defined security policies - Export/import data between systems with validation checks and encoding integrity - Execute data quality checks and report violations with remediation scripts - Apply statistics updates, manage transaction logs, and test failover recovery - Perform compliance data extractions, patching, and system audits for enterprise use cases - Document processes and performance findings in clear, reproducible formats * * * 3\. Ideal Qualifications - 5+ years of experience as a Database Administrator working in production environments - Expert-level SQL skills and proficiency with PostgreSQL, MySQL, and/or SQL Server - Strong background in performance tuning, security, data integrity, and schema design - Familiarity with compliance standards (e.g., SOX), data export formats, and backup tooling - Comfortable handling large datasets, interpreting execution plans, and managing database infrastructure end-to-end - Ability to produce production-quality scripts and documentation for technical audiences * * * 4\. More About the Opportunity - Remote and asynchronous — work on your own schedule - Expected commitment: minimum 30 hours/week - Project duration: ~6 weeks * * * 5\. Compensation & Contract Terms - $90–100/hour for U.S.-based freelancers (localized rates may vary) - Paid weekly via Stripe Connect - You’ll be classified as an independent contractor * * * 6\. Application Process - Submit your resume followed by domain expertise interview and short form * * * 7\. About Mercor - Mercor is a talent marketplace that connects top experts with leading AI labs and research organizations. - Our investors include Benchmark, General Catalyst, Adam D’Angelo, Larry Summers, and Jack Dorsey. - Thousands of professionals across domains like law, creatives, engineering, and research have joined Mercor to work on frontier projects shaping the next era of AI.

Job DescriptionOur client is seeking a System Administrator for an onsite, full-time permanent position paying $100,000 $115,000 annually. In this role, you will be responsible for the maintenance, configuration, and reliable operation of computer systems and servers. The ideal candidate will ensure high availability, security, and performance of network and server infrastructure, manage backup and disaster recovery, and administer Active Directory environments. Candidates must be Green Card Holders or US Citizens. Primary Responsibilities • Configure new IT hardware, including servers and networking equipment., • Manage and monitor internal assets to maintain accurate inventory records., • Proactively monitor network and server reliability, usage, and performance to ensure security and availability., • Analyze and resolve infrastructure issues., • Apply system patches according to policy., • Manage backup infrastructure, ensuring all systems are backed up as needed., • Monitor backups to meet RPO/RTO goals and conduct backup testing per policy., • Manage disaster recovery site, ensuring replication meets RPO/RTO goals and test failovers as required., • Administer on-premises Active Directory, Azure Active Directory, and Office 365 suite., • Provide Level 2 support to users and respond to network access issues. Required Qualifications • Bachelors degree in related field preferred, or equivalent experience., • Ability to configure IT hardware., • Strong knowledge of networking protocols and operating systems, including Windows and VMware ESXi., • Solid understanding of backup and disaster recovery systems and processes., • Ability to prioritize and schedule preventive maintenance for network and system health., • Strong interpersonal skills and ability to maintain user satisfaction.

Job Description NEXPERA leads the way in sulfuric acid and potassium hydroxide regeneration, offering a comprehensive range of products and services that optimize processes, minimize environmental impact, and allow our partners to focus on their core operations. With the industry’s largest facility network, we ensure unmatched reliability and drive innovation across the industrial landscape. In addition, we provide an unmatched array of sulfur-based chemicals and related services to a diverse set of industries. BENEFITS Nexpera's comprehensive benefits package includes paid time off policies, as well as health, dental and vision insurance. In addition, employees are also entitled to participate in an employer sponsored 401(k) plan, to save for retirement. Pay and benefits for employees represented by a union are outlined in their collective bargaining agreement. POSITION PURPOSE This position will be responsible for providing inspection and technical program support for equipment inspection, test, and repair portions of the overall Mechanical Integrity/Quality Assurance effort. The role will primarily focus on the Morses Mill (Linden, NJ) site, while also being integrated and part of the Acid Technology Center which provides support to all of the NEXPERA sites. The site produces Sulfuric Acid. The role will reside at the plant site and reports to the Asset Manager. PRIMARY DUTIES / RESPONSIBILITIES (but not limited to): • Develop/Authorize/Maintain and implement standardized inspection plans for all PSM Critical Equipment, including pressure vessels, process vessels, heat exchangers, piping, storage tanks, and other equipment., • Perform equipment inspection in accordance with API 510, API 653 and API 570 guidelines and regulations., • Complete post inspection reports and provide recommendations and/or modifications for immediate concerns and future consideration., • Develop, implement and document repair plans for fixed equipment, • Perform field contract administration duties during field repairs of equipment, • Standardize, organize, and maintain required documentation (design bases, inspection plans, inspection reports, etc.) in accord with corporate and site MIQA best practices., • Update SAP and equipment files with equipment history, Inspection Plans., • Ensure that all inspections and tests are performed in accordance with the original equipment design basis and in alignment with recognized and accepted good engineering practice (RAGAGEP)., • Ensure that all repairs to fixed PSM Critical Equipment is documented in accordance with OSHA 1970.119, • Evaluate the fitness-for-service of all fixed PSM Critical Equipment and assist other Technical/Maintenance resources in properly developing and documenting any repairs to return the equipment service., • Perform necessary calculations required within the RAGAGEP to determine the minimum allowable thickness of pressure vessels, piping, and tanks in PSM Critical service., • Provide functional guidance to NEXPERA and contract NDE Examiners, • Evaluate results of various non-destructive inspections on process equipment and provide recommendations based on those inspection results, • Act as an the Authorized Inspectors for PSM Critical pressure vessel, piping, and storage tank inspections and tests, as well as for approval of all alterations to PSM Critical pressure vessels, piping, and storage tanks., • Manage & Implement the Corrosion Monitoring program PSAIM® for the sites, • Coordinate contract NDE inspections and perform Field Contract Administrator responsibilities, • Develop Quality Assurance Plans for fabrication of new equipment (ex. tanks, pressure vessels, piping, etc…), • Perform/coordinate QA inspections of new equipment on site and at shop locations., • Estimate equipment remaining life per the applicable RAGAGEP., • Maintaining the site Owners User Manual as applicable., • Perform UT and PT on an as needed non-routine basis (NEXPERA will provide training if not certified) Qualifications In order to be qualified for this role, the following is required: • 3 plus years work experience within high hazardous chemical processing or oil refining industries or similar industries, • At least 2 out of 3 of the following certifications: API 510, API 570, API 653, • Able to travel approximately 30-40% per year, • Successful candidates must be able to perform the essential functions of the job with or without accommodation. Additional information We are an Equal Opportunity Employer! All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.