ICON Initiative99 SXSW Special Event Photo Credit Kayla Dawn Davis 153 1 1
Now Hiring

Senior Engineer, Cement-based Materials

ICON is looking for a Senior Engineer who will lead the development of new technologies to improve and localize our proprietary cementitious binder “Lavacrete”. As a Senior Engineer in the Material Science team, you will provide guidance related to testing, new formulations, and insights into developing new Lavacrete binders as well as provide support to improve existing formulations. The role will require close collaboration with other departments and leading interdisciplinary projects. This is an on-site role that will report to ICON's Sr. Director of Material Science out of our Austin, TX campus.



  • Lead the development initiatives of new formulations of cement-based 3D-printable materials and optimize the performance of existing formulations and mix designs. 
  • Design and execute testing programs focused on performance evaluation and optimization of 3D-printed materials and structures. 
  • Act as an internal subject matter expert and resource to other ICON teams (engineering, architecture, operations).
  • Prepare and independently lead material testing campaigns and collaborate with other teams on their successful execution. 
  • Troubleshoot material performance in ICON’s Vulcan and Magma systems and provide feedback to the technology teams on possible solutions and performance improvements. 
  • Support the development of ICON’s projects (development, design, construction, post-construction).
  • Create a project-specific quality control/assurance program and oversee ICON materials compliance with project specifications and building codes.
  • Provide support and training to junior engineers and laboratory personnel.



  • Minimum of 5 years of relevant industry experience.
  • M.S. in Civil Engineering with a focus on cement-based materials or equivalent.  
  • Expert knowledge of fundamentals of concrete and cement-based materials science and technology.
  • Experience in the evaluation of cement-based materials using standardized (ASTM, EN, ISO) and one-off test methods and procedures.
  • Understanding of concrete-related codes, regulations, and specifications (ACI 301, ACI 318, ACI 332, ICC AC 509, etc.).
  • Experience in the development, optimization, and performance troubleshooting of concrete mixtures and/or other cement-based products (grouts, dry mortars, etc.).
  • A quick learner capable of understanding the operational aspects of hardware, electrical, controls, and software systems utilized by the company.
  • Demonstrated experience in leading and/or supervising teams and other professionals, including multidisciplinary teams and/or laboratory technicians.  
  • Experience in analyzing large data sets and ability to draw data-driven conclusions.
  • Ability to prioritize and stay cool in a dynamic start-up environment. 
  • Strong verbal and written communication skills.
  • Extended hours and weekend work may be required to ensure the company’s goals and objectives are met.
  • Willingness to be “hands-on” both in the laboratory and in the field. 
  • Must be willing to perform a wide range of tasks daily (e.g. transition from office work to fieldwork at a moment’s notice).
  • Must be prepared to work, in part, in extreme environments: temps > 100 °F or below freezing, sun, rain, mud, lack of electricity, etc.
  • Must be able to lift 50 pounds.
  • This position may require travel up to 30%.



  • PhD in Civil Engineering.
  • Professional Engineering (PE) license, or ability to obtain within 6 months of hire. 
  • Previous experience in 3D printing with cementitious materials. 
  • Sound understanding of concrete structural engineering and analysis.
  • Previous start-up experience, and/or a resourceful innovative nature with an ability to streamline or develop efficient processes.
  • Experience with a dry mortar production process. 
  • An engineer in nature eager to learn various aspects of the large-scale 3D printing process (hardware, control and software systems, architecture, and design).
  • A skilled user and/or ability to quickly learn how to use various software tools for data analysis, data acquisition, and cement-based materials performance modeling.
ICON is an equal opportunity employer committed to fostering an innovative, inclusive, diverse and discrimination-free work environment. Employment with ICON is based on merit, competence, and qualifications. It is our policy to administer all personnel actions, including recruiting, hiring, training, and promoting employees, without regard to race, color, religion, gender, sexual orientation, gender identity, national origin or ancestry, age, disability, marital status, veteran status, or any other legally protected classification in accordance with applicable federal and state laws. Consistent with the obligations of these laws, ICON will make reasonable accommodations for qualified individuals with disabilities.

Furthermore, as a federal government contractor, the Company maintains an affirmative action program which furthers its commitment and complies with recordkeeping and reporting requirements under certain federal civil rights laws and regulations, including Executive Order 11246, Section 503 of the Rehabilitation Act of 1973 (as amended) and the Vietnam Era Veterans' Readjustment Assistance Act of 1974 (as amended).

Headhunters and recruitment agencies may not submit candidates through this application. ICON does not accept unsolicited headhunter and agency submissions for candidates and will not pay fees to any third-party agency without a prior agreement with ICON.

As part of our compliance with these obligations, the Company invites you to voluntarily self-identify as set forth below. Provision of such information is entirely voluntary and a decision to provide or not provide such information will not have any effect on your employment or subject you to any adverse treatment. Any and all information provided will be considered confidential, will be kept separate from your application and/or personnel file, and will only be used in accordance with applicable laws, orders and regulations, including those that require the information to be summarized and reported to the federal government for civil rights enforcement purposes.

Internet Applicant Employment Notices


Solving one of the most challenging problems humanity faces requires a level of diversity across disciplines. ICON believes that by being a non-homogenous organization, we can capture unique perspectives, educational backgrounds, and ideation. We strive to be inclusive and seek team members who share our passion for the mission within the mission: building robust and diverse teams to help us prevail in the face of our challenges.

We‘re a team of varied backgrounds, countries, and experiences, and we believe our differences make us stronger as we tackle some of the most challenging problems of our time.


Every startup wants to change the world, but we genuinely believe we’re not being hyperbolic when we say this technology has the potential to reinvent human shelter, dramatically improving quality and resiliency while driving down costs to make housing affordable for everyone. We believe in harnessing the power of construction technology for the good of all humanity, both here on Earth and off-world. And while we get excited about R&D accomplishments in the lab, we get more excited when we see our work out in the real world, printing real homes for real people.

We work hard because we know what we are doing can reshape the way we live as a species. And it doesn’t hurt that it’s super fun. Where else do you get to play with giant robots and see the results of your work manifest in beautiful full-scale buildings that didn’t exist before—and that someone can now call home?