Assistant Project Manager - H&H

LJA; Katy (TX); On-site; USD 70,000 - 100,000; Full time

Benefits offered by this job

PTO & holidays

Health benefits

Dental coverage

Tuition reimbursement

Volunteer days

Professional development

Internal mobility

Fun culture

Job summary

LJA is seeking an Assistant Project Manager in Land Development to provide drainage analyses and design support for our client base. The H&H group focuses on drainage studies that improve conservation and land development plans.

The role involves managing multiple studies, reviewing requirements, performing hydraulic calculations, and coordinating with internal teams to gather data and deliver project scopes within budgets.

Qualifications

• Bachelor of Science in Civil Engineering required.
• Engineer-in-Training certification required.
• 5+ years of hydrologic and hydraulic analyses experience.
• Proficient in HEC-HMS and HEC-RAS.

Responsibilities

• Assist in managing multiple H&H studies for Land Development Projects.
• Review project requirements and prepare models for analysis.
• Perform hydraulic calculations and guide technical staff.
• Coordinate with internal clients for data collection.
• Prepare scopes and budgets for review by the H&H Project Manager.
• Assist in preparing presentation materials.

Skills

Hydrology & hydraulics

Report writing

Relationship building

Education

Bachelor of Science in Civil Engineering

Engineer-in-Training

Tools

HEC-HMS

HEC-RAS

XP-Storm

2D modeling

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 be responsible for providing various drainage analyses and design support to our land development clients. The H&H group creates drainage studies in support of design for our diverse client base that incorporates their specific needs while providing the added benefits of optimized conservation, amenities, and effective land development plans.

A TYPICAL DAY MIGHT INCLUDE:

• Assist in managing multiple H&H studies in support of Land Development Projects
• Review project requirements to determine and prepare models for the analysis
• Performs hydraulic calculations and provides direction to technical support or drafting personnel.
• Assignments require the investigation of a limited number of variables; supervisory assistance is provided on unusual problems and possible solutions
• Determines additional information that is needed from internal clients and coordinates directly with them to obtain the needed data
• Makes basic decisions regarding alternative procedures when information is not given
• Communicate effectively with all internal LJA personnel involved with the project
• Prepare scopes and budgets as requested for review by the H&H Project Manager
• Assist in the preparation of presentation materials
• Assist in coordinating and directing large and important engineering projects or several smaller projects with many complex features
• Assist with daily operations and schedules for H&H engineering analysis to support the Land Division

REQUIRED EDUCATION/LICENSE/CERTIFICATIONS:

• A Bachelor of Science in Civil Engineering is required
• Certified Engineer-in-Training

REQUIRED QUALIFICATIONS:

• 5+ years of experience in hydrologic and hydraulic analyses, FEMA Letters of Map Change, and Floodplain Fill Mitigation Plans in and around Harris County
• Proficient in HEC-HMS, HEC-RAS
• Experience in advanced H&H modeling, such as XP-Storm or 2D modeling is a plus
• Strong report writing skills

IDEALLY, YOU SHOULD ALSO HAVE:

• Ability to build strong relationships

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.

To Executive Search Firms & Staffing Agencies: LJA, Inc. and its subsidiaries do not accept unsolicited resumes from any agencies that have not signed a service agreement. All unsolicited resumes will be considered LJA's property. This includes resumes submitted directly to hiring managers without contacting LJA's Human Resources Talent Department.