Senior/Intermediate Sustainability Engineer (AKL, WLG, CHC)

About TMCo:

TMCo is an engineering consultancy with an incredible team across 10 offices in New Zealand and Australia. We specialise in delivering innovative, sustainable solutions across various engineering disciplines. Despite our growth, we’ve kept our one-office, team vibe focusing on great culture and meaningful connections.

At TMCo, we empower our people to thrive, ensuring they feel valued, satisfied, and supported in achieving both personal and professional goals. You’ll be joining a team where everyone is invested in delivering exceptional results for our clients while enjoying a supportive, friendly, and fun environment. We don’t believe in corporate red tape TMCo is all about agility, collaboration, and achieving goals as a team.

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About the Role:

We’re looking for a Senior or Intermediate Sustainability Engineer to join our team. This role is ideal for someone passionate about sustainability, energy efficiency, and creating a greener future for the built environment. You’ll work closely with our clients, directors, and engineers, using cutting-edge simulation software to help drive sustainable solutions.

This role can be based anywhere in New Zealand, but we’d love to have someone in Auckland, Tauranga, Tauranga, Wellington, Christchurch or Queenstown,. We offer flexible working hours, the role is ideally full-time across Monday to Friday, within standard office hours.

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What You’ll Be Doing:

• Conducting energy modelling and simulation using IESVE (Apache, Apache HVAC, Radiance, Macroflo).
• Performing thermal bridging analysis using Flixo.
• Providing expert guidance on energy efficiency standards, building codes, and sustainability certifications (Green Star, Homestar, NABERSNZ, H1 Energy Efficiency).
• Translating complex technical data into actionable solutions and presenting findings to both technical and non-technical stakeholders.
• Collaborating with a multidisciplinary team to integrate sustainability into building designs.
• Supporting clients in achieving their sustainability and environmental goals.

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What We’re Looking For:

• Bachelor’s or Master’s degree in Mechanical Engineering, Sustainable Design, Building Science, or a related field.
• Proven experience in energy modelling and simulation software.
• Strong analytical and problem-solving skills.
• Excellent communication skills with the ability to explain technical concepts to a variety of audiences.
• A proactive, collaborative, and adaptable approach to work.
• A genuine passion for sustainability and improving energy efficiency.

Why Join TMCo?

• Flexible location – work from anywhere in NZ, with preferred locations in Auckland, Christchurch, Tauranga, Queenstown, or Wellington but we would still love to hear from you if you're not based in these locations.
• Supportive, team-oriented culture with a focus on collaboration and growth.
• Exciting and meaningful work that makes a real difference in sustainability.
• Opportunities for professional development and career progression.
• Work-life balance – flexible hours to suit your lifestyle.

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Requirements:

• Must have full working rights in New Zealand.
• Must already be based in New Zealand.
• Fluent in English with excellent written and verbal communication skills.
• A full New Zealand driver’s licence is preferred.

If you’re excited about driving sustainability in the built environment and want to be part of a dynamic, forward-thinking team, we’d love to hear from you! Apply today and let’s make a difference together. Please send your CV through to JasmineF@tmco.co.nz or apply via seek.

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