What
We Do

SSIFT is a global structural engineering firm shaping the built world with precision, digital innovation, and sustainable solutions. With a team of ~70 specialists across Germany, Switzerland, Vietnam, and Australia, we combine scale with expertise to ensure every project is efficient, reliable, and built to last.

Our expertise spans multi-residential towers, commercial buildings, industrial facilities, logistics hubs, bridges, infrastructure, and facades. We deliver structural solutions across all phases of design and execution – from feasibility and concept studies through design and approval planning to workshop drawings and execution. At every stage, we leverage advanced digital technologies such as BIM to improve accuracy, efficiency, and collaboration.

We provide engineering across reinforced and prestressed concrete, precast concrete, steel, composite steel, and timber. Our services support projects of every scale – from mid- and high-rise apartments to healthcare facilities, factories, and distribution centres – with engineering that is buildable, efficient, and delivered on time.

What sets SSIFT apart is our commitment to precision, quality, and digital innovation. Our clients – including global leaders such as Amazon, Tesla, and Porsche – trust us to engineer with excellence, so they can build with confidence.
We engineer the big by perfecting the small.

History

IB Selje

IB Schellenbauer

Selje + Schellenbauer GbR

SSIFT Vietnam, HCMC (VN)

SSIFT Vietnam 6th Floor, Hose Building, Quang Trung Software City, Tan Chanh Hiep Ward, District 12, Ho Chi Minh City, Vietnam hcmc@ssift.com

SSIFT GmbH, Walheim (D) (vormals S+S GbR)

SSIFT Schweiz GmbH, Chur (CH)

SSIFT Vietnam, Danang (VN)

SSIFT GmbH, Stuttgart (D)

SSIFT Schweiz GmbH, Wallisellen (CH)

SSIFT in Australia: SSIFT Pty Ltd

As structural engineers, we employ state-of-the-art methods and technologies,
including Building Information Modeling (BIM).

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Employees
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Offices in 4 Countries
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Completed Projects

Our strengths

SSIFT delivers structural engineering that combines precision, quality, and digital innovation. We integrate seamlessly into project teams to provide solutions that are efficient, sustainable, and delivered on time – giving our partners confidence at every stage.

Our Working Method

As structural engineers, we employ state-of-the-art methods and technologies, including Building Information Modeling (BIM) and 3D modelling.

With BIM, we enhance collaboration and communication with other project stakeholders such as architects, clients, and specialist planners.

Through digital modeling and simulation, we can identify potential challenges early on and develop efficient solutions to successfully implement projects.

Our Team

Our expertise covers the entire structural engineering planning for construction projects ranging from residential to commercial buildings, as well as industrial buildings, from foundation to roof.

We also have experience in bridge construction and can support you in the planning and implementation of bridge structures for roads, railways, and pedestrian paths. We have experience with all common building materials, such as reinforced concrete, prestressed concrete, steel, wood, masonry, glass, and various composite materials.

Our Goal

We aim to develop cost-effective and sustainable solutions that meet the requirements of our clients.

We place great importance on quality, reliability, and adherence to deadlines.

Our experienced engineers and planners work closely with you to understand your specific requirements and develop optimal solutions that are both technically sound and economically viable.

Our Values

Excellence in Engineering

We are committed to quality, precision, and technical excellence at the highest standards.

Creative Problem-Solving

We pair rigorous engineering with inventive thinking, providing smart solutions to structural challenges of every scale.

Digital Innovation

We use advanced digital tools like 3D modelling and BIM to improve accuracy, efficiency, and project outcomes.

Sustainability and Responsibility

We engineer intelligent design and resource-efficient structures for long-term performance, and sustainable development.

Global Expertise, Local Insight

With teams across Europe, Asia-Pacific, and Australia, we deliver with international scale while are committed to local codes, practices, and client needs.

Transparency and Collaboration

We communicate openly and build strong partnerships across borders and disciplines.

Our leadership team

CEO SSIFT Group

Steffen Schellenbauer

Dipl. Ing. (MSc) Civil Engineering, Structural Engineering

Steffen has 25 years of international leadership experience in structural engineering. He combines precision, digital innovation, and sustainability to deliver client value, ensuring every project is efficient, reliable, and future-ready – enabling partners to build smarter and stronger.

Managing Director SSIFT Germany

Attila Bodenseh

Dipl. Ing. (MSc) Civil Engineering, Structural Engineering

Attila has over 23 years of structural engineering experience, from analysis and sustainable design to project coordination. He ensures projects meet the highest standards while using digital innovation to deliver efficient, future-ready solutions for clients.

Managing Director

SSIFT Switzerland GmbH

Domenico Gioia

BSc Civil Engineering

Domenico has ~10 years of experience as a structural engineer, specializing in structural design, leading projects from acquisition to execution, delivering innovative solutions across steel, concrete, and timber, driven by digital engineering and BIM modelling.

MD SSIFT Pty Ltd, Global Operations Head SSIFT Group

Chris Reinert

MBA, SHRM-SCP, ICF-ACC, GAICD, MAHRI

Chris has over 15 years of global leadership experience across operations, HR, and governance across Australia, APAC, Europe, and North America. He focuses on building scalable organisations, strong partnerships, and long-term value in complex, international environments.

Director SSIFT Pty Ltd

Alex Zecevic

BE(Hons), MIEAust, CPEng, NER, APEC, IntPE(Aus)

Alex has 20 years’ experience in structural engineering across Australia and the UK. A recognised specialist in DfMA and timber systems, he also brings strong expertise in steel, concrete and hybrid structures, providing balanced, practical and technically rigorous leadership on complex projects.

Director Digital Engineering

Raphael Boehringer

State-Certified Technician

Raphael has 10 years of structural engineering experience, focusing on solid construction. He leads the design department ensuring clients benefit from efficient, high-quality designs. He drives BIM and Digital Engineering innovation delivering reliable, future-ready solutions to projects.

Director SSIFT Switzerland GmbH

Walter Villa

Dipl. HTL (MSc) Civil Engineering, Structural Engineering

Walter brings 40 years of experience in structural engineering, with a strong focus on residential and industrial projects. Specializing in project management, he combines extensive practical know-how with deep expertise in structural and construction aspects.

Project Director SSIFT Pty Ltd

Paul Doody

Registered Professional Engineer, Queensland (RPEQ) – No. 4418, Fellow Institution of Engineers Australia, Eng Exec, Cpeng, Member NER

Paul has over 40 years’ experience in structural engineering, project management, and project delivery across health, commercial, retail, industrial, defence and residential projects in Australia, the South Pacific and Europe.

Managing Director SSIFT Vietnam

Nguyen Huynh (Rainer)

Master’s, Technical Vocational Education and Training (TVET)

Rainer brings over 20 years of experience in team leadership, project management, process optimization, CAD, BIM, software development, and programming. He ensures precise, high-quality 3D models deliver reliable and future-ready solutions for clients.

Stronger Together

1588  completed Projects and counting!

With every new Project we continue improving our already very high quality.