Assistant Project Manager - Public Infrastructure

LJA; Dallas (TX); On-site; USD 80,000 - 110,000; Full time

Benefits offered by this job

PTO & holidays

Health & dental

Parental leave

Tuition reimbursement

Referral bonuses

Volunteer days

Professional development

Career growth

Fun culture

Job summary

LJA is hiring an Assistant Project Manager in Land Development to support delivery of public infrastructure while performing hands-on engineering work. The role links project engineering and project management, coordinating with managers, design teams, and clients on water, wastewater, drainage, and local infrastructure work.

Required are a BS in Civil or Environmental Engineering (ABET) and a Texas PE license, plus 4+ years in civil engineering and strong written/verbal communication.

Qualifications

• 4+ years of civil engineering experience.
• Experience as a Project Engineer is required.
• Proven ability to support water, wastewater, drainage or local infra projects.

Responsibilities

• Support the Project Manager with proposals, delivery, scheduling and client coordination.
• Perform Project Engineering duties, including Engineer of Record when assigned.
• Assist with project management aspects of delivery.
• Develop initial design approaches for major project phases or manage engineering on smaller projects.
• Coordinate with internal design teams for timely, accurate execution.
• Supervise and mentor junior engineers and support staff.

Skills

Communication skills

Team collaboration

Client coordination

Education

Bachelor of Science in Civil or Environmental Engineering (ABET)

Professional Engineer (PE) license - Texas

Job description

What Lja Has To Offer

LJA is offering an exciting opportunity that will allow you to reach your full career potential. The structure of our organization is designed to amplify your capabilities while gaining the benefits of being an employee-owner. What truly sets this opportunity apart is the chance to collaborate every day with dedicated, skilled, and supportive leaders. Whether you are in the office, in the field, or behind the scenes, working at LJA gives you the chance to grow through hands‑on experience and exposure to a broad range of clients and services.

What Lja Has To Offer

LJA is offering an exciting opportunity that will allow you to reach your full career potential. The structure of our organization is designed to amplify your capabilities while gaining the benefits of being an employee-owner. What truly sets this opportunity apart is the chance to collaborate every day with dedicated, skilled, and supportive leaders. Whether you are in the office, in the field, or behind the scenes, working at LJA gives you the chance to grow through hands‑on experience and exposure to a broad range of clients and services.

What Makes Lja Different

At LJA, our employee-owners take pride in their work and their workplace. We’re guided by leaders who foster a culture of respect, collaboration and a shared vision of success. Our difference is evident in the experiences and opportunities we provide:

• Employee-owned. Client-focused
• Employee Stock Ownership Plan (ESOP)
• Consistently ranked as a Top Workplace
• Internal recruitment team, in‑house training, and a marketing department specific to our industry
• We celebrate flexibility, allowing every team and office to lead with their proven approach
• Our culture champions continuous learning and personal growth
• We believe success comes through constant evolution and communication
• We are passionate about having fun and making money, all while creating impact

POSITION OVERVIEW:

As a Assistant Project Manager at LJA Land Development, you will support the delivery of public infrastructure projects while continuing to perform hands‑on engineering work. This role bridges project engineering and project management, with responsibilities that include coordination with project managers, design teams, and clients, while developing skills related to project delivery and management. Projects may include water and wastewater systems, drainage, and local infrastructure work.

A TYPICAL DAY MIGHT INCLUDE:

• Supporting the Project Manager with proposals, project delivery, scheduling, billing, and client coordination
• Performing Project Engineering responsibilities, including serving as Engineer of Record when assigned
• Assisting with and learning the project management aspects of project delivery
• Developing initial design approaches for major phases of large projects or managing engineering work on smaller projects with minimal supervision
• Coordinating with internal design teams to support timely and accurate project execution
• Supervising and mentoring less experienced engineers and technical support staff.

REQUIRED EDUCATION/LICENSE/CERTIFICATIONS:

• Bachelor of Science in Civil Engineering or Environmental Engineering from an ABET-accredited program
• Professional Engineer (PE) license in the State of Texas

REQUIRED QUALIFICATIONS:

• 4+ years of experience in the civil engineering field
• Minimum of 1 year of experience serving as a Project Engineer
• Experience supporting water, wastewater, drainage, or local infrastructure projects
• Strong written and verbal communication skills
• Demonstrated ability to build and maintain strong working relationships

IDEALLY, YOU SHOULD ALSO HAVE:

• Experience supporting both project engineering and project management functions
• Comfort coordinating across project managers, design teams, and clients
• Interest in continued growth into a full Project Manager role

LEVEL UP WITH LJA

At LJA, we’re 100% employee‑owned. This drives results, rewards ambition and supports long‑term success for every team member. With almost 100 locations and 3,000+ employee‑owners (and growing), we’re building something big! We want you to be part of it. Your future grows here.

• Generous Time Off: PTO, paid holidays, and a full office closure between Christmas and New Year’s.
• Comprehensive Benefits: Multiple plan options for health, dental, and pets. Along with mental health support.
• Family Support: Paid maternity and parental leave to help you focus on what matters most.
• Education Support: Tuition reimbursement and in‑house courses provided by our Learning and Development team.
• Referral Bonuses: Know great talent? Get rewarded for helping us grow.
• Community Impact: Company‑sponsored volunteer days and philanthropic initiatives.
• Professional Development: Memberships to industry organizations to keep you connected and growing.
• Career Growth: Great internal mobility opportunities to advance your career.
• Fun Culture: LJA social events, employee sports teams, bring your kid to work day, etc.