In House Mechanic

Watertown, SD | East River Contracting

East River Contracting is hiring a full-time Mechanic to maintain and repair our fleet, equipment, and small engines.

This role is a great fit for someone who enjoys hands-on work, takes pride in fixing problems, and wants to continue growing their mechanical skills in a steady, year-round position. Whether you have years of experience or recently completed a diesel or automotive program, we want dependable people who are willing to learn and work hard.

• Competitive pay based on experience ($25–$30/hr)
• Year-round, consistent work
• Paid Time Off (PTO)
• Stable full-time schedule
• Primarily shop-based work with minimal travel requirements

• Health Insurance Reimbursement (up to $150/month)
• SIMPLE IRA with up to 3% company match
• Performance-based raises tied to results
• Additional perks based on experience and role

• Maintain and repair company vehicles, trailers, equipment, and small engines
• Perform preventative maintenance including oil changes, fluid checks, greasing, filters, and inspections
• Diagnose and troubleshoot diesel, gas, hydraulic, electrical, and mechanical issues
• Complete repairs efficiently to minimize downtime and keep crews moving
• Track service intervals and identify maintenance needs before breakdowns happen
• Maintain a safe, clean, and organized shop environment

• Mechanical experience or technical training in diesel, automotive, or equipment repair
• Preferred to have direct experience as a diesel mechanic
• Basic understanding of engines, tools, and preventative maintenance
• Willingness to learn and continue developing mechanical skills
• Ability to work independently and stay organized
• Dependable, self-motivated, and detail-oriented
• Welding and fabrication experience is a plus
• Valid driver’s license required

At East River Contracting, we don’t just build projects — we build teams that perform.

Continuous Pursuit

Growth-minded. Always improving. Driven to win.

Integrity First

Do what’s right, even when it’s not easy.

Problem solvers who avoid drama and keep work moving.

Adaptable, persistent, and finish what we start.

Take accountability and deliver results.