Assistant Project Manager

DN; Littleton (CO); On-site; USD 65,000 - 95,000; Full time

Benefits offered by this job

401(k) employer match

Medical coverage (DN pays portion)

Dental coverage

Paid time off

9 paid holidays

Tuition reimbursement

Gym reimbursement

Employee referral program

Job summary

DN in Littleton, CO is seeking an Assistant Project Manager to help plan, execute, and close out complex construction projects in the heavy civil sector. You will work under the Project Manager, mentor junior staff, manage pre-job planning, site coordination, and oversee subcontractors, crane operations, and cost tracking across multiple sites.

Strong organizational skills, timely reporting, and ability to travel to project sites are essential; DN offers competitive rewards and growth

Qualifications

• 3+ years in construction field engineering, project engineering, or assistant project manager.
• Experience in heavy civil self-performing contractor; concrete preferred.
• Leadership experience and a team-oriented background.

Responsibilities

• Support the Project Manager in successful project execution through communication, coordination and attention to detail.
• Manage new construction projects under VP of Construction direction.
• Solicit and evaluate subcontractor pricing and maintain relationships.
• Utilize AutoCAD for casting bed and crane layout; assist in pre-bid and post-construction estimating.
• Oversee project material submittals, approvals and lead times to meet timelines.
• End-to-end concrete design and management, including QC and post-project analysis.
• Coordinate crane operations, scheduling and communications with site teams.
• Travel to project sites for preconstruction meetings and safety inspections.
• Assist in project closeout meetings and handovers to clients.

Skills

Leadership

Communication

Teamwork

Problem solving

Education

Civil Engineering or Construction Management degree

Tools

AutoCAD

Job description

Our culture is rooted in a shared vision — to help keep the world’s most precious resource safe — and in the core values that guide us in pursuing this vision and delivering on our mission to clients.

We provide the highest quality liquid storage design and construction services at the best long-term value with an unrivaled customer experience. We have built over 3,500 pre-stressed concrete liquid storage tanks over the past 90 years around the country and world, as a result we have become the leader in the industry when it comes to quality and innovation.

As a Assistant Project Manager at DN, you will play a key role in helping plan, execute, and close out projects while gaining hands‑on experience across all phases of project delivery. This is a pivotal role in advancing project success, requiring you to demonstrate adept organizational and multitasking skills, and efficiently overseeing a range of tasks throughout construction phases. With a focus on management and leadership, this role involves directing teams, facilitating collaboration, and reporting to the Project Manager, showcasing self-sufficiency in responsibilities.

Responsibilities

• Support the Project Manager in the successful execution of projects through effective communication, coordination, and attention to detail
• Manage services projects representing the company in meetings, conducting pre‑job planning with superintendents, and ensuring daily project monitoring
• Manage new construction projects at the discretion of the Vice President of Construction
• Solicit and evaluate subcontractor pricing through pre/post bid strategies, subcontract coordination, and maintain subcontractor relationships
• Proficiently utilize AutoCAD for precise casting bed and crane layout, evaluate site conditions to recommend suitable equipment usage (cranes, pumps, loaders), conduct pre‑project inspections, verify site layout details, and contribute to estimating throughout pre‑bid and post‑construction phase
• In conjunction with the Project Coordinator, manage project material submittals, approvals and lead times to ensure project timelines are met
• End‑to‑end concrete design and management, including specification review, quality control, operational support, and post‑project analysis
• Manage subcontractors by ensuring performance aligns with project timelines and quality, while promoting effective communication and collaboration
• Manage the coordination of crane operations, overseeing scheduling, and communication
• with the superintendent ensuring efficient project execution
• Travel to project sites for preconstruction meetings, quality control and safety inspections
• Manage costs involving initial budgeting, invoice evaluation, expense tracking, and monthly project billings
• Assist in Project closeout meetings, ensuring documentation review, final approvals, and seamless project handover to clients
• Support the project team to thoroughly execute detailed pre‑job planning
• Manage co‑ops/interns ensuring productive contribution and professional development

Qualifications

• 3+ years of construction field engineer, project engineer, or assistant project manager experience in a heavy civil self-performing contractor, concrete preferred
• Background in sitework and utility work preferred
• Civil Engineering or Construction Management degree preferred
• Leadership experience demonstrated through ability to guide, motivate and develop others, and team-oriented background grounded in trust, accountability, and shared success

Total Rewards

Our Total Rewards offerings are designed to invest in our employees and their families, including:

• Competitive base compensation plus eligibility for DN’s annual incentive bonus program
• 401(k) retirement plan consisting of a 100% employer match on the first 6% of employee contributions and an additional 3% Safe Harbor company contribution
• Medical coverage effective on date of hire, with DN covering 80%–85% of premiums depending on plan selection
• Dental coverage effective on date of hire, with DN covering 75% of premiums
• Voluntary vision coverage effective on date of hire
• Flexible Spending Account options for eligible medical, dental and dependent-care expenses
• Company-paid life insurance, accidental death & dismemberment coverage, and long-term disability coverage
• Paid time off starting at 16 days annually, increasing with tenure, plus 9 paid holidays each year
• Half-day Fridays between July 4 and Labor Day
• Paid parental leave for birth mothers and spouses or committed partners
• Employee Assistance Program available at no cost to employees and household members for work/life support
• Tuition reimbursement
• Gym reimbursement
• Employee referral incentive program
• Career growth, internal mobility and professional development opportunities within a stable, purpose-driven compan

At DN, we're building careers—not just filling positions.

If this role excites you but your experience doesn't align perfectly with the listed qualifications, we still encourage you to apply. We consider candidates across multiple engineering levels and are committed to placing great people where they can make the biggest impact and continue to grow.

DN is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other federally protected class. All employment is decided on the basis of qualifications, merit, and business need.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.