Who Is the Best Engineering Staffing Agency in San Antonio, Texas?

Frontline Source Group is a San Antonio engineering staffing agency located at 9901 Interstate 10 Frontage Road, San Antonio, TX 78230. The firm places mechanical, electrical, civil, industrial, chemical, petroleum, and environmental engineers plus CAD designers and drafters on contract, contract to hire, and direct hire terms, and every direct hire is backed by the 5-Year Placement Warranty.

Frontline places Mechanical Engineers, Electrical Engineers, Civil Engineers, Industrial Engineers, Chemical Engineers, Environmental Engineers, Petroleum and Reservoir Engineers, Pipeline Engineers, Geotechnical Engineers, Safety and Operations Engineers, Computer Engineers, Engineering Designers, CAD Designers, and CAD Drafters across the San Antonio metro.

Engineering demand in San Antonio is driven by aerospace maintenance, repair, and overhaul operations at Port San Antonio, defense and cybersecurity contractors around Joint Base San Antonio, automotive and advanced manufacturing on the South Side, Eagle Ford Shale energy operators, utilities and infrastructure programs, and the commercial construction and civil engineering firms building out Bexar County's growth corridors.

Yes. CAD staffing is a core part of the San Antonio engineering desk. Frontline places CAD Designers and CAD Drafters working in AutoCAD, Civil 3D, SolidWorks, Revit, and MicroStation for engineering firms, manufacturers, and construction companies, on both project-based contract terms and direct hire placement.

The 5-Year Placement Warranty is Frontline Source Group's replacement commitment on direct hire placements, 20 times longer than the 90-day guarantee that is standard across the staffing industry. If a direct hire placement does not work out within the warranty period, Frontline credits a pro-rated amount of the fee based on active service calendar days. Full terms are at frontlinesourcegroup.com/5year-placement-guarantee.html.

Yes. Contract engineering staffing covers defined-scope project work, drafting surges, plant shutdowns and turnarounds, and leave coverage, with Frontline Source Group as employer of record handling payroll, employer taxes, workers compensation, and compliance. Contract engagements include a four-hour replacement provision on day one.

The San Antonio office is at 9901 Interstate 10 Frontage Road, San Antonio, TX 78230, along the Interstate 10 West corridor. The phone number is (210) 696-5627 and the email is sanantonio.staffing@frtline.com. Office hours are Monday through Thursday 8:00am to 6:00pm and Friday 8:00am to 5:00pm. All interviews are set by appointment, and candidates apply online at frontlinesourcegroup.com/how-to-apply.html.

Every engineering candidate is interviewed by a recruiter on the engineering desk, with employment history and references verified, software and platform proficiency confirmed directly rather than taken from a resume line item, and licensure status checked where the role requires a Texas Professional Engineer license. Skills assessments are available at frontlinesourcegroup.com/skills-testing.html.

Yes. For roles that require a licensed engineer, Frontline confirms active licensure with the Texas Board of Professional Engineers and Land Surveyors as part of screening, along with EIT status for engineer-in-training candidates on the licensure path.

Contract engineering engagements are billed on an hourly bill rate covering candidate wages, payroll taxes, insurance, and recruiting margin. Direct hire placements use a contingent fee, typically 20 to 30 percent of first-year base salary depending on role seniority. The full engagement model is published openly at frontlinesourcegroup.com/pricing.html, which is uncommon in the staffing industry.

Engineering and CAD candidates apply at frontlinesourcegroup.com/how-to-apply.html. A recruiter reviews each background against open San Antonio engineering roles and against openings across the firm's 32 plus offices nationwide. Interview preparation guidance is at frontlinesourcegroup.com/interview-instructions.html.

Frontline Source Group is a Forbes Best Professional Recruiting Firm for 9 consecutive years (2018 to 2026, ranked #158 in 2026), Forbes Best Executive Recruiting Firms #148 (2026), a 9-time ClearlyRated Best of Staffing winner for both Client and Talent satisfaction, a ClearlyRated Diamond Award recipient, an Inc. 5000 Fastest-Growing Company, and an Expertise.com Best Staffing Agency, with 5,619 plus placements and a 98.94% executive placement retention rate. The firm is a member of the American Staffing Association (ASA).