UNKNOWN

ADAPTED_NOW

YEAR

This role leads portions of projects, developing code-compliant, constructible designs for HVAC, hydronic, and thermal plant systems while solving complex technical challenges. The Mechanical Professional Engineer II (PE II) independently applies advanced engineering techniques to design and coordinate mechanical systems for energy and infrastructure projects across hospital and college campuses.

Every day, System One focuses on services and solutions that require a high degree of specialization, in-demand technical skills, and large-scale operational expertise. We are essential partners to those on the front lines of our nation’s most critical infrastructure, technology, and life sciences initiatives. 
Founded more than 40 years ago as a staffing partner to the engineering industry, today System One is a diversified organization operating in over 50 locations and putting more than 9,000 people to work in the United States, Canada, and the United Kingdom.

System One

Mechanical Engineer PE II

FEED

With $8.1 billion in revenue for 2025, Clayco specializes in the ''art and science of building,'' providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations.

Clayco Inc

Junior Graphic Designer

You actively use tools such as Adobe Firefly, Midjourney, ChatGPT, or Claude to support concepting, image generation, copy development, and production efficiency - and you can clearly explain how AI enhances your creative output without replacing your judgment. We are seeking a Junior Graphic Designer to play an integral role in the planning, designing, developing, and maintenance of print and electronic creative materials for clients in the animal and human healthcare B2B space.

MJH Life Sciences Multimedia Medical LLC

Jr. Graphic Designer

ea_via_bold

You actively use tools such as Adobe Firefly, Midjourney, ChatGPT, or Claude to support concepting, image generation, copy development, and production efficiency — and you can clearly explain how AI enhances your creative output without replacing your judgment. We are seeking a Junior Graphic Designer to play an integral role in the planning, designing, developing, and maintenance of print and electronic creative materials for clients in the animal and human healthcare B2B space.

MJH Life Sciences

Our Cities & Places team is seeking a Junior Architectural Designer to help deliver innovative, sustainable, and people-focused design solutions that shape communities and improve the way people live, work, and connect. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work.

Jacobs Solutions

Junior Architectural Designer

IRecruitee

MJH Healthcare Holdings LLC

We are seeking a Junior Electronics Engineer to join an established engineering team developing electronic systems for advanced battery applications. This is an excellent opportunity for an engineer who enjoys hands-on technical work, troubleshooting, and seeing designs move from concept through testing and production.

BlackRock Resources LLC

Junior Electronics Engineer

jobdiva

PART_TIME

Vendor & Subcontractor Solicitation & Coordination: Liaise with vendors and subcontractors to solicit and evaluate bids, ensuring all estimates include up-to-date pricing and availability of materials and labor. The Junior Estimator will play a crucial role in our project planning and execution phase, focusing on cost estimation, bid proposal preparation, and the initial stages of project management for our projects.

Global Earthworks & Underground, LLC

Junior Estimator

With $8.1 billion in revenue for 2025, Clayco specializes in the ''art and science of building,'' providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. This individual will work closely with Senior Lab Planner and support the planning, programming, and design of complex laboratory and research facilities, working closely with clients, scientists, and multidisciplinary design teams to deliver high-performance, flexible, and compliant environments.

Junior Architectural Lab Planner

With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. This individual will work closely with Senior Lab Planner and support the planning, programming, and design of complex laboratory and research facilities, working closely with clients, scientists, and multidisciplinary design teams to deliver high-performance, flexible, and compliant environments.

Clayco

You'll gain hands-on experience with content management systems (CMS), quality assurance, campaign launches, and website operations while learning industry best practices for digital publishing and production workflows. Participate in scheduled website launches, including overnight, early morning, evening, and occasional weekend production deployments, to support promotional campaigns, seasonal events, and major site updates.

BPS Direct LLC

Jr Digital Production Specialist

Black Rock Resources LLC

The Junior Structures Estimator will play a crucial role in our project planning and execution phase, focusing on cost estimation, bid proposal preparation, and the initial stages of project management for bridge construction projects. Vendor & Subcontractor Solicitation & Coordination: Liaise with vendors and subcontractors to solicit and evaluate bids, ensuring all estimates include up-to-date pricing and availability of materials and labor.

Clarkson Construction Company

Junior Structures Estimator

Working closely with engineers, project managers, clients, and contractors, you will support the development of detailed design packages, coordinate multidisciplinary project activities, and contribute to the successful execution of projects from conceptual engineering through construction support and commissioning. At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

Jacobs Solutions Inc

Senior Substation Designer

Working closely with project managers, engineers, senior designers, and field teams, you'll help deliver high-quality, code-compliant solutions that support efficient installation and long-term system reliability. This role also provides opportunities to mentor junior designers, contribute to complex project execution, and continually expand your technical expertise through collaboration and ongoing learning, making you a key contributor to the success of every project.

HOUR

Central States Industrial

Designer 2 - Field Installation

clearcompany

National Design Build Services (NDBS) is a mechanical design/build firm that designs and installs heating, ventilation, air conditioning and refrigeration (HVAC/R) systems for commercial and industrial buildings. We have been entrusted with more than 500 projects across the country, including healthcare, food processing, manufacturing, warehouses, office buildings and refrigerated warehouses.

Kelso Industries

Sr. Mechanical Designer @ NDBS

GreenHouseAPI

OTHER

This is an excellent opportunity for a Mechanical Engineer or Designer who wants to be involved in more than simply producing drawings—you'll have the opportunity to collaborate across design, preconstruction, estimating, and construction while helping deliver complex building systems from concept through completion. We are seeking a talented Mechanical Design Engineer to join a well-established and highly respected organization with a long history of delivering complex commercial and institutional projects.

Gpac’s mission is to be the preferred staffing and recruitment solution by effectively delivering and connecting talent with successful companies and organizations. 
 
Our team, with collective experience of over 250 years, is passionate about wh

Gpac

Jr & Sr Mechanical Design Engineer

LogicMelon

FULL_TIME

While performing the duties of this job, this position is required to have ordinary ambulatory skills sufficient to visit other locations; and the ability to stand, walk, stoop, kneel, crouch, and manipulate (lift, carry, move) light to medium weights of 10-50 pounds. Requires good hand-eye coordination, and arm, hand and finger dexterity, including the ability to grasp, and visual acuity to use a keyboard, operate equipment and read application/form information.

The Haskell Company

Sr. Substation Designer

[AW]-iCims

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good. Louis, MO team as a Structural BIM Designer who is excited about enabling the heart of our clients' business and executing designs ranging from new, multi-building complexes to full-scale renovations of historic structures.

Structural BIM Designer

Communicate effectively with engineers, designers, trade partners and field personnel to identify design and coordination issues and develop practical solutions. Lay out and design HVAC piping systems, including but not limited to chilled water, heating hot water, condenser water, steam, refrigeration and condensate.

Junior Designer Jobs in Missouri

Mechanical Engineer PE II System One

Junior Graphic Designer Clayco Inc

Jr. Graphic Designer MJH Life Sciences Multimedia Medical LLC

Jr. Graphic Designer MJH Life Sciences

Junior Architectural Designer Jacobs Solutions

Jr. Graphic Designer MJH Healthcare Holdings LLC

Junior Electronics Engineer BlackRock Resources LLC

Junior Estimator Global Earthworks & Underground, LLC

Junior Architectural Lab Planner Clayco Inc

Junior Architectural Lab Planner Clayco

Jr Digital Production Specialist BPS Direct LLC

Junior Electronics Engineer Black Rock Resources LLC

Junior Structures Estimator Clarkson Construction Company

Senior Substation Designer Jacobs Solutions Inc

Designer 2 - Field Installation Central States Industrial

Sr. Mechanical Designer @ NDBS Kelso Industries

Jr & Sr Mechanical Design Engineer Gpac

Sr. Substation Designer The Haskell Company

Structural BIM Designer Jacobs Solutions Inc

Sr. Mechanical Designer National Design Build Services

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