Posted time January 11, 2023 Location Houston, TX Job type Full-time


Johnston is a collaboration of experienced engineers, architects, planners, and managers working together to create thoughtful and functional design throughout the great state of Texas.  We work on projects that make a difference in people’s lives and make our world a safer place.

Mission: Our people are the heart of our business. We build highly engaged and collaborative teams dedicated to executing thoughtful, creative design solutions. We are passionate, optimistic, dedicated, efficient, and driven by our entrepreneurial roots.

Vision: To provide the best client service in design and construction. Our Vision is reflected in our designs, our team members, and our culture. It has resulted in the strong, trusting relationships we have with our clients today and the standard we aspire to maintain in the years to come.

People: At Johnston, we seek people who are creative and enjoy solving problems, while having fun along the way. Individuals who embrace a team approach, committed to growing and developing their talents, enjoy mentoring and coaching others, and contribute to a fantastic company culture are who we are as a team and a firm. We aspire to build the best team with the best people to deliver the best projects.



In partnership with the Mechanical Team Leader, the Senior Mechanical Engineer is responsible for a project’s HVAC system design and implementation and associated project deliverables.  This role is responsible for the successful delivery of medium to large building projects, developing project concepts and budgets, completing site assessments, and writing reports to create solutions for our clients.  This position is also responsible for managing and mentoring a team of Engineers and Designers.


  • Bachelor of Science in Mechanical Engineering.
  • Licensed PE.
  • 10+ years project engineering experience, from concept to client delivery in HVAC Design, Building Mechanical Systems, and Central Utility Plants.
  • Experience in healthcare, government, commercial, manufacturing, and/or education required.
  • Experience in healthcare preferred.
  • Experience in leading or working in integrated teams.
  • Experience in leadership role on a consulting team.
  • Knowledge and ability to review drawings for quality assurance, quality control.
  • Advanced knowledge in mechanical engineering, associated systems, calculations, and construction methods.
  • Experience with various analysis tools for mechanical system design.
  • Experience in mechanical specification development and writing.
  • Experience in financially projecting department revenue and overhead.
  • Experience with the local market and the associated business development.
  • Experience mentoring an engineering staff.
  • Experience working with Revit and BIM.
  • Proficient in Microsoft Office, including Word, Excel, PowerPoint, and Outlook.


  • Performs and supervises preparation of technical drawings and assessment reports.
  • Develops typical details, specifications, and drawing standards including development of Revit standards in coordination with the team.
  • Maintains knowledge of industry trends and technology updates and recommends changes in approach and client services, as appropriate.
  • Provides design inputs and reviews of team members’ projects to verify conformity to quality assurance, quality control, and best practice standards.
  • Provides technical support and project communications to team, as required.
  • Participates in team meetings to help resolve project issues, coordination with other disciplines, schedule adherence, technical issues.
  • Performs site visit surveys to determine engineering strategies and to document and evaluate existing systems.
  • Visits project sites during construction for quality, progress, and compliance review with specifications and standards.
  • Reviews and provides responses on “Request for Information” and “Submittals” during the construction administration phase.
  • Attends and participates in Owner-Architect-Contractor meetings as required.
  • Responsible for communication with other disciplines, vendors, and contractors to ensure incorporation of all information into project requirements and provides support, as necessary.
  • Mentors less experienced engineering team members.
  • Works on developing a positive relationship of trust with the team.
  • Provides support to the Business Development team including write-ups of key aspects of projects and presentation of work at industry events.
  • Collaborates with Marketing in preparing RFQ and RFP packages.


  • Committed to exceptional external and internal client service.
  • Ability to collaborate with multiple disciplines across the project team at all levels.
  • Result driven by proper planning, prioritizing, and meeting deadlines.
  • Ability to multitask and work in a fast-paced environment.
  • Ability to independently prioritize tasks.
  • Highly organized and detail oriented.
  • Ability to communicate effectively, both verbal and written.
  • Excellent writing, editing, and proofreading skills.
  • Fast learner with ability to adapt and work independently or in a team environment.


  • Demonstrates strong communication and relationship management skills.
  • Team focused with ability to collaborate well with internal and external team members.
  • Effective listener and clear communicator.
  • Respects the time of others; schedules and attends meetings timely and comes
  • Acts with integrity, professionalism, and confidentiality.
  • Maintains a high degree of confidentiality and adherence to practice of business ethics.
  • Promotes and upholds the Johnston values. Trust. Respect. Integrity.
  • Embodies the attributes of an “Ideal Team Player” (Humble, Hungry, People Smart).

Johnston provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, marital status, sex, sexual orientation, gender identity, genetic information, pregnancy, national origin, age, disability, or protected veteran status. In addition to all Presidential Executive Orders and federal law requirements, Johnston complies with applicable state and local laws governing nondiscrimination in employment. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.