Advanced Mechanical Systems Engineer – Manufacturing & Design Engineering

Honeywell

Mechanical Systems Engineer designing and manufacturing specialized liquefaction equipment. Contributing to Piping and Structural Design & Engineering team on hybrid basis.

Posted 7/21/2026full-timeAllentown • Pennsylvania • 🇺🇸 United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Mechanical Systems Engineering with a strong focus on LNG applications, including proficiency in ASME B31.3 Process Piping code and the ability to interpret P&IDs. Capable of collaborating across engineering disciplines while ensuring compliance with industry standards and environmental regulations.

Highest-signal resume keywords

Mechanical Systems EngineeringASME B31.3 Process Piping CodeP&ID InterpretationLNG Industry KnowledgeCross-Disciplinary Collaboration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mechanical Design PrinciplesPressure Test DiagramsPiping Thickness CalculationSmart 3D Pipe Class DatabaseMaterial Properties for Cryogenic Applications

Soft Skills

Excellent CommunicationInterpersonal SkillsConflict ManagementAnalytical Problem-SolvingTeam Collaboration

Tools & Technologies

Microsoft Office Tools

Industry Keywords

LNG ApplicationsEnvironmental RegulationsSafety StandardsCorrosion ResistancePetrochemical Industry

About the role

Key responsibilities & impact

Function as the Mechanical Systems Engineering Subject Matter Expert within the Honeywell LNG Organization.
Interface with cross-functional disciplines such as Piping Design, Piping Stress Engineering, Process Controls, Machinery Engineering, Procurement, Process Safety, and Process Systems Engineering during Basic Engineering and Design or on projects from conceptual phase through project execution.
Develop and/or select specifications for piping, manual valves, control valves, insulation, coatings, and fittings for various fluid services, temperatures, and pressures related to LNG applications, creating new project or application-specific specifications, as necessary.
Maintain the library of Honeywell LNG mechanical component specifications, standards, selection processes, and review procedures, ensuring alignment with other Honeywell businesses, industry standards (ASME, API, EN), and regulatory requirements.
Review Piping and Instrumentation Diagrams (P&IDs) at every stage of a bid or project to ensure safe operation, start-up, shut-down, maintenance, and overall integrity based on material type, temperature, pressure, and service.
Create pressure test diagrams according to ASME B31.3 Code for Process Piping or similar industry codes.
Review changes in P&ID process scope and design, updating specified Mechanical System components accordingly.
Manage technical requisition deliverables for manual valves, control valves, and other in-line piping equipment (such as strainers and other specialty inline components), reviewing vendor proposals and drawings, and qualifying new vendors.
Calculate required piping thickness based on internal and external pressures.
Collaborate with Process Engineering and Startup Team for the selection of control valves for LNG applications.
Review customer/EPC specifications, industrial standards, and regulatory requirements to align the scope of supply during project bid phase.
Participate in safety assessments and ensure adherence to environmental regulations throughout the design phase.
Occasionally participate in plant visits and international field repair trips.

Requirements

What you’ll need

Bachelor’s degree from an accredited institution in a technical discipline such as science, technology, engineering, or mathematics.
Minimum of 5 years of experience in the Petrochemical or LNG industry with a focus on mechanical systems engineering or similar role.
Strong knowledge of ASME B31.3 Process Piping code and/ or other international standards.
Fully conversant with industry codes and standards such as those from ASME, API, ISO, and MSS.
Ability to read and interpret P&IDs including piping isometrics.
Proficiency in mechanical design principles, particularly for cryogenic applications, is desirable.
Knowledge of LNG processes, equipment, and industry best practices.
Understanding of how mechanical systems integrate with other engineering disciplines, including electrical, instrumentation, and process engineering.
Experience and knowledge with ASME B31.3 Process Piping code and other relevant industry standards.
Knowledge of material properties, especially for cryogenic applications. Understanding how materials behave under extreme temperatures is essential.
Familiarity with corrosion resistance and fatigue limits for metals and alloys used in LNG facilities.
Knowledge of environmental regulations and safety standards specific to the LNG industry.
Experience in preparing Smart 3D pipe class database.
Proficiency in Microsoft Office Tools.
Excellent communication and interpersonal skills, capable of working in a team environment, fostering collaboration among diverse engineering disciplines.
Skills in managing conflicts and building positive working relationships.
Openness to continuous personal and professional development through training and certification courses.
Excellent leadership qualities and strong analytical and problem-solving skills.
Ability to work effectively in a fast-paced and dynamic environment.
Due to compliance with U.S. export control laws and regulations, candidate must be a U.S. Person.

Benefits

Comp & perks

employer-subsidized Medical, Dental, Vision, and Life Insurance
Short-Term and Long-Term Disability
401(k) match
Flexible Spending Accounts
Health Savings Accounts
EAP
Educational Assistance
Parental Leave
Paid Time Off (for vacation, personal business, sick time, and parental leave)
12 Paid Holidays