Top Mechanical Engineering Jobs in Chicago, IL

Assist with field evaluations of piping and equipment, develop engineering calculations, repair drawings, specifications, scope-of-work packages, and reports. The role provides exposure to heavy industrial environments, field work, analytical modeling, and infrastructure design while requiring physical mobility and adherence to site safety requirements.

Performs field evaluations, failure analysis, calculations, repair drawings, and recommendations for in-service equipment and piping systems in process-industry facilities. Develops specifications and construction work packages, interfaces with clients and construction teams, prepares reports, and supports field execution. The role requires a mechanical engineering degree and may involve industrial field conditions, heights, confined spaces, lifting, PPE, and varied weather.

Leads complex mechanical engineering projects involving HVAC, plumbing, cooling systems, CFD modeling, load calculations, equipment sizing, and high-density infrastructure design. Oversees project scope and schedules, performs QA/QC reviews, develops Revit construction documents, coordinates multidisciplinary designs, presents engineering solutions to clients, mentors staff, and conducts training.

Mechanical Engineer II responsible for value engineering and product development, including design reviews, risk analysis, cost reduction, process improvement, and cross-functional collaboration with engineering, procurement, manufacturing, and supply chain. The role manages project deliverables, evaluates materials and suppliers, develops business cases, presents recommendations, tracks savings, and supports lean and standardization initiatives throughout the product lifecycle.

Designs process-mechanical systems for water and wastewater treatment infrastructure, including equipment, piping, pumping, hydraulics, aeration, and pipe supports. Develops calculations, specifications, drawings, and BIM models; coordinates interdisciplinary design teams; reviews construction submittals; responds to contractor inquiries; and performs site observations. The role also supports construction phases, manages design tasks, and may mentor less experienced staff.

Leads mechanical application engineering for prefabricated data-center platforms, including fan coil units, chilled-water skids, hydronic systems, and integrated assemblies. Translates customer requirements into manufacturable designs, sizes mechanical components, develops BOMs and technical documentation, and supports prototyping, FAT/SAT, and first-article builds. Collaborates with electrical, controls, supply chain, sales, operations, vendors, and fabricators while applying DFM/VAVE principles and maintaining revision-controlled documentation.

Performs mechanical design for power system products, converting prototypes into commercially viable systems. Responsibilities include cooling calculations, design compliance, customer consultation, installation inspections, engineering reports, technical manuals, and use of computer-assisted design software. Provides guidance to Level 1 engineers and designers. The position is onsite in Monroe, Louisiana, includes 5–10% travel, and requires three months of onsite training at an out-of-state facility.

Leads mechanical engineering and serves as Engineer of Record for complex data center projects. Designs HVAC, chilled water, and mission-critical cooling systems; reviews technical documents; coordinates multidisciplinary teams; oversees projects through construction; manages budgets and schedules; conducts equipment and energy analyses; mentors engineers; seals designs; and supports proposals and client presentations.

Leads mechanical engineering efforts for mission-critical data center projects, including new construction, expansions, retrofits, standards development, design reviews, construction support, equipment evaluations, value engineering, controls review, commissioning, and troubleshooting. Collaborates with operations teams, consultants, suppliers, construction partners, and customers. Reviews mechanical, plumbing, fire protection, HVAC controls, energy, hydraulic, and CFD analyses while supporting factory testing, site meetings, and emergency response.

Leads complex mechanical engineering projects, including system analysis, design, testing, maintenance, repair, and improvement. Signs and seals engineering documents, develops blueprints, conducts field visits, manages projects, and interacts directly with clients. Provides technical leadership, mentoring, and supervision while applying independent judgment to challenging assignments. Requires a Professional Engineer license, extensive engineering experience, and willingness to travel to job sites and work in demanding physical environments.

Designs, analyzes, tests, maintains, and improves mechanical systems and engineering projects. Responsibilities include signing and sealing documents, drafting blueprints, conducting field visits, managing complex projects, interacting with clients, and mentoring subordinate staff. Requires independent judgment, technical expertise, and a Professional Engineer license. Travel to job sites or offices is expected 5–10% of the time.

Design and develop automated machinery, rotary index table systems, fixtures, nests, and integrated manufacturing processes. Use CAD software to design equipment incorporating ultrasonic welding, pad printing, machine bases, and safety guarding. Manage machine-build timelines, budgets, and project accountability while collaborating with electrical engineering teams.

Lead supplier development for machined parts: audit and improve supplier processes, perform on-site quality investigations, support NPI, provide technical guidance on specifications and manufacturing, monitor supplier performance, and mitigate supply chain risks to enable scalable aerospace production.

Develop mechanical designs for opto-electronic devices using CREO and AutoCAD. Perform thermal, thermo-mechanical, and mechanical FEA in ANSYS, conduct FMEAs and tolerance analyses, and manage part revisions. Collaborate with design, manufacturing, quality, and vendors to validate specifications, improve manufacturability, and address complex engineering challenges in an in-person telecommunications technology environment.

Supports mechanical engineering teams with design documentation, AutoCAD and Revit drawings, building systems design calculations, field investigations, and construction site visits. Participates in intern education sessions and collaborates with engineers on innovative MEP solutions. Requires pursuit of a mechanical engineering bachelor’s degree, with candidates at least in their second year. Prior internship experience and knowledge of AutoCAD, Revit, and design software are preferred.

Lead process engineering design and execution for mining, mineral processing, material handling, and heavy industrial facilities. Develop PFDs, P&IDs, calculations, specifications, and equipment designs; coordinate multidisciplinary teams; oversee quality, safety, commissioning, and client expectations. Support proposals, business development, client relationships, conferences, and project pursuits. Mentor engineers and establish engineering standards and best practices. Regular travel to offices, project sites, and industrial facilities is expected.

Designs and develops pharmaceutical drug-delivery devices and platforms using CAD, prototyping, testing, tolerance analysis, and Design for Manufacturing principles. Collaborates with internal teams, external consultants, CROs, and manufacturing partners to troubleshoot products, support design controls, build intellectual property, and transfer devices into production. Manages project budgets and timelines while serving as a technical resource for cross-functional teams.

Designs and delivers complex HVAC systems for healthcare, higher education, and laboratory projects. Responsibilities include heating and cooling load calculations, ductwork and piping design, equipment selection, specifications, system sequences, vendor and contractor coordination, interdisciplinary collaboration, RFI responses, submittal reviews, field verification, proposals, client management, and project oversight.

Lead mechanical development of architectural luminaires from concept through production, including prototyping, validation, regulatory testing, manufacturing collaboration, and ordering-system setup. Manage multiple cross-functional projects, maintain design and production documentation, analyze risks, support peer design reviews, coordinate timelines, and deliver projects meeting customer, cost, and schedule targets.

Supports mechanical engineering projects under senior supervision. Responsibilities include specifying and evaluating process equipment, reviewing vendor documents, performing equipment and piping calculations, selecting piping materials, participating in client and vendor meetings, conducting field surveys, and interpreting engineering drawings and specifications.

Embed with enterprise customers to solve mechanical engineering data, integration, and workflow challenges across PLM, ERP, QMS, and design systems. Implement AI-enabled CoLab workflows, validate AI-generated engineering results, identify product gaps, and develop scalable documentation and playbooks. Partner with technical program managers, software engineers, product teams, and customer stakeholders to lead technical projects and improve engineering decision-making.

Own mechanical product development from concept and CAD through prototyping, qualification, and production transfer. Design rugged, safety-critical assemblies; define mechanical safety architecture; specify materials, tolerances, finishes, and fasteners; build prototypes; create manufacturing packages; execute environmental and mechanical qualification testing; and manage BOM, weight, and center-of-gravity budgets while collaborating with hardware and software engineers.

Leads medium-complexity manufacturing engineering projects, including equipment design, process improvements, automation, machine rebuilds, and manufacturing line installations. Develops technical requirements, budgets, schedules, layouts, documentation, and handover packages. Provides hands-on troubleshooting and technical support for mechanical, hydraulic, pneumatic, and electrical systems. Collaborates with plants, maintenance teams, vendors, and EH&S to improve safety, reliability, productivity, and profitability. Extensive travel is required.

Designs and optimizes HVAC and plumbing systems for government, commercial, and industrial facilities. Responsibilities include producing construction drawings and specifications, equipment selection and sizing, site visits, facility condition assessments, cost estimates, CAD and simulation modeling, construction administration, reporting, and stakeholder collaboration. The engineer may lead technicians and designers, maintain code and industry knowledge, and travel up to 30% of the time.

Lead design and delivery of mechanical HVAC and plumbing systems from concept through construction, perform load and energy modeling, conduct QA/QC and technical reviews, mentor staff, produce Revit models and construction documents, and support construction administration and site visits.