Junior Pipeline Engineer Jobs in Riverside, CA (NOW HIRING)

The Opportunity

We are seeking a motivated and experienced Civil Engineer, PE to join our Irvine office.
The successful candidate will contribute to a wide range of federal, municipal, commercial, and private development projects-including the design of stormwater systems, grading, multiuse paths, complete/green streets, and active transportation infrastructure, as well as support for water and sewer pipelines, pump stations, retaining walls, bridges, and related structures.

This role offers the opportunity to grow within a collaborative team environment, mentor junior staff, and work alongside senior engineers and project managers on high-impact projects throughout Southern California.

Why Tetra Tech

At Tetra Tech, we are Leading with Science to solve the world's most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For over 50 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development. Our work has improved more than 625 million lives around the world.

Your Impact

Join Tetra Tech to make a real difference. Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential - join us to advance your career while leaving a lasting legacy.

Position Summary

As a Civil Engineer, PE, you will be responsible for the planning, design, and delivery of civil infrastructure and site development projects.

You will take ownership of technical design tasks, coordinate multidisciplinary efforts, and ensure that deliverables meet the highest standards of quality, safety, and compliance.
This position offers a path for growth toward project management and technical leadership within Tetra Tech's expanding Infrastructure Engineering group.

Essential Functions

• Lead and support civil infrastructure design projects, including:
  • Stormwater capture and water quality management systems
  • Low Impact Development (LID) and green infrastructure
  • Grading and drainage design using AutoCAD Civil 3D
  • Hydrology and hydraulics modeling
  • ADA-compliant ramps, bikeways, and pedestrian pathways
  • Complete/green streets and active transportation projects

  • Water distribution and sanitary sewer collection systems

    Pump stations, erosion control, retaining walls, and bridges

• Perform conceptual and detailed design calculations and analyses.
• Prepare engineering reports, construction drawings, specifications, and cost estimates.
• Ensure compliance with engineering standards, local codes, and documentation requirements.
• Evaluate design alternatives and provide innovative technical solutions.
• Coordinate with multidisciplinary teams, subconsultants, and stakeholders.
• Support permitting processes and regulatory compliance.
• Mentor junior staff and contribute to technical team development.
• Execute work safely, efficiently, and cost-effectively.
• Perform other related duties as assigned.

Required Qualifications

• Bachelor's degree in Civil Engineering (BSCE) required.
• 5-10 years of relevant civil engineering experience.
• EIT certification required; ability to obtain California PE license within 6-12 months.
• Strong background in:
• Stormwater and water quality systems
• LID/green infrastructure
• Grading, drainage, and street design
• Water and sewer systems
• Permitting and regulatory compliance
• Experience with municipal, commercial, or residential infrastructure projects.
• Proficiency in AutoCAD Civil 3D (formal training preferred); MicroStation InRoads a plus.
• Skilled in Microsoft Office (Word, Excel) and technical writing.
• Strong communication, analytical, organizational, and interpersonal skills.
• Ability to self-direct work and review plan sets and reports.
• Familiarity with applicable codes and ability to develop and review specifications.

Physical Requirements

• Ability to sit, stand, and walk for extended periods while performing office or fieldwork.
• Must be able to lift up to 25 pounds (e.g., equipment, documents, samples).
• Occasional fieldwork may require walking on uneven terrain, climbing stairs or ladders, and working outdoors in varying weather conditions.
• Must be able to travel locally for site visits, meetings, or field coordination as needed.
• Reasonable accommodations may be made for individuals with disabilities to perform essential job functions.

Work Environment / Environmental Factors

• Hybrid work environment (office and field-based) with flexibility to balance project and personal needs.
• Field assignments may involve construction sites, active infrastructure environments, and coordination with municipal clients and contractors.
• Standard business hours with occasional overtime or travel to meet project deadlines or attend client meetings.

CA Salary: $98,000 to $125,000 dependent on experience. 

Life at Tetra Tech:

The perks of working at Tetra Tech include:

• Comprehensive and market-competitive benefits.
• Merit-based financial rewards.
• Flexibility and company-wide commitment to work/life balance.
• Collaborative team atmosphere that values the contributions of all employees.
• Learning and development opportunities for ongoing professional growth.