About Cephas Rock

Structural and Design Engineers

We are proud of our close-knit group of experts, qualified structural engineers here at Cephas Rock. Our extensive experience belies the fact that we consider ourselves to be young and energetic, with shared enthusiasm and drive for structural engineering and economical structural solutions. We often provide group input, with shared discussions about past and current projects while welcoming new challenges to extend our scope of experience in the expertise we provide.

At the forefront of Cephas Rock is Joshua Wong. Joshua has personally been involved in over 500 building design projects yet maintains the same level of energy and devotion to the work as would a graduate new to the industry. Joshua is an inspiration to the team, and a reliable go-to expert for all of our returning customers. Joshua would like to personally welcome you to contact us for any queries, and to initiate our services.

When engaging the services of our professional Cephas Rock team, we are sure you will be more than satisfied with our pro-active enthusiasm, genuine care and concern for your requirements, and overall structural goals. We work with a clear awareness of current legal and compliance requirements, and we have the flexibility to work alongside you to meet your needs.

We have invested heavily in our staff by sending them to courses and seminars as well as on-the-job training. We use the best equipment that we can possibly get for our engineers.

Core values

What do we admire about others in the team?

Commitment
We deliver what we promise.
Ownership
We take ownership of every single job.
Quality
We consistently produce excellent work and have striven for continued improvement.
Self-driven
We take initiative and play our roles.
Boldness
We desire to question and understand what is right, we are bold to express our opinion in a respectful manner.
Teamwork
We pursue success as a team, not as individuals.
Customer Focus
We build strong relationships with our clients and customise a unique approach for each client.
Integrity/Honesty
We have a strong commitment to upholding the Engineering New Zealand Code of Ethics, and we also have zero tolerance for dishonesty in our workplace.
Positive Environment
We take care and encourage each other like a family and we never stop having some fun.

Meet the team

Joshua Wong

BEng(Hons) CPEng IntPE (NZ) CMEngNZ

Position: Director/Structural Engineer (Chartered Professional Engineer)

Joshua Wong is the founder of Cephas Rock Limited and has worked in the engineering industry since 2001. In addition to his extensive structural engineering background, his early career overseas also involved work in sewage treatment and industrial wastewater treatment, giving him a broad technical foundation.

During the formative years of his career, Joshua was privileged to complete part of his apprenticeship under the legendary structural engineer Arthur Tyndall. This experience profoundly shaped his engineering approach and equipped him with exceptional skill in solving complex engineering problems.

Joshua established Cephas Rock in 2010 and worked from home until 2017, allowing him to balance his professional commitments with spending valuable time with his family. In 2020, he expanded the business internationally by setting up a company in Melbourne, Australia.

As the head of operations, Joshua oversees the management and direction of the entire company. He also serves as the technical lead, providing training, guidance, and supervision to the engineering team. Highly committed and exceptionally hardworking, Joshua continues to strengthen the firm’s technical capability and operational excellence.

Joshua has a strong passion for architectural home design. To date, he has designed more than 250 houses, ranging from standard homes to high-end, architecturally distinctive properties. His long-term vision is to grow Cephas Rock into a multidisciplinary and multinational firm. Central to his leadership philosophy is the adoption of strong systems in both company management and engineering practice. He believes in placing the right professionals in the right roles and readily engages external specialists—such as IT, accounting, and software consultants—to ensure optimal outcomes for clients and internal operations.

Outside of work, Joshua enjoys travelling and caring for ornamental fish.

Huey Sin Lim

BCom (Finance) Otago University

Position: Director/Financial Controller

Huey Sin is the Co-Founder of Cephas Rock Limited. Before joining the firm, she spent five years in the banking industry as a Financial Executive, where she consistently excelled and demonstrated strong professional discipline.

Although much of her time is now dedicated to her young family, she continues to play an integral role in Cephas Rock as a director. She contributes to key decisions, particularly in business expansion and quality control. Known for her entrepreneurial spirit, she is often the first to invest and is a visionary who can see long-term opportunities clearly.

Outside of work, Huey Sin enjoys theology studies and travelling.

Jared Yang

BEng(Hons) MCivilEng MEngNZ

Position: Structural Engineer

Jared graduated from the University of Canterbury in 2017 and has been working in the New Zealand consulting industry ever since. He completed his Master’s degree in Civil Engineering at the University of Canterbury and previously worked as a Geotechnical Engineer in Auckland before expanding his expertise into structural engineering.

Jared joined Cephas Rock in 2021 and has since become a highly valued member of the team. With strong experience in both geotechnical and structural disciplines, he is a versatile engineer who brings a well-rounded technical perspective to every project. Known for his intelligence, excellent people skills, and outstanding customer service, Jared also leads the company’s sales and enquiry management. His negotiation ability and client-focused approach contribute greatly to the success of our projects and relationships.

Outside of work, Jared enjoys playing soccer and staying active.

Mingkeng Li

BEngTech(Civil)

Position: Structural Engineer

Ming graduated with a Bachelor of Engineering Technology (Civil) from the Ara Institute of Canterbury in 2022 and has been working in the engineering industry since. He joined Cephas Rock in 2023 and has since become a reliable and valued member of the team.

As a structural engineer, Ming is involved in soil investigations, foundation design, and house inspections. He is known for his hardworking nature, strong attention to detail, and consistent, high-quality work. Thorough, trustworthy, and methodical, Ming approaches every project with professionalism and care.

Outside of work, Ming enjoys playing soccer and staying active.

Carmen Li

Position: Part time Office Administrator

Carmen is Cephas Rock’s dedicated Office Administrator, committed to providing exceptional support to both the team and our clients. Known for her thoroughness and strong attention to detail, she ensures the smooth and efficient operation of our daily workflow.

A proactive self-starter, Carmen brings a high level of organisation and reliability to every task. After taking a few years off to focus on her family, she rejoined Cephas Rock in 2022, continuing to contribute her professionalism, warm communication style, and strong work ethic to the business.

Her commitment to excellence and her positive, solutions-focused approach make her an invaluable part of the Cephas Rock team.