Principal Engineer - Computer Vision / 3D Reconstruction

Principal Engineer - Computer Vision / 3D Reconstruction at Bentley Systems

Locations: France, Ireland, UK, Germany, Switzerland (Hybrid/Remote)

Position Summary

Cesium is the leading open platform for streaming and visualizing huge 3D geospatial datasets, providing the core technology to build applications with real‑world context. Our cloud services and vibrant open‑source community empower developers across industries, from government to entertainment, to create immersive, data‑rich experiences.

The iTwin Capture team transforms vast amounts of real‑world data from sources such as drones, cameras, and laser scanners into highly accurate, intelligent 3D digital twins of infrastructure. We develop the technology that converts this data into immersive models, enabling smarter, more sustainable design, construction, and operation of critical infrastructure worldwide.

A new position has opened for a Principal Engineer specialising in 3D reconstruction to advance high‑fidelity reality capture technologies. You will work on photogrammetry, neural rendering, and innovative approaches like Gaussian Splatting to deliver state‑of‑the‑art solutions.

Responsibilities

• Research, design, and implement advanced 3D reconstruction pipelines.
• Develop and optimise photogrammetry algorithms for scalability and accuracy.
• Implement neural rendering techniques (NeRFs, Gaussian Splatting) for large‑scale scenes.
• Benchmark and validate reconstruction pipelines for performance and quality.
• Collaborate with product and engineering teams to bring research into production.

Qualifications

• Master’s or PhD in Computer Vision, Graphics, or related field.
• Hands‑on experience in photogrammetry and multi‑view geometry.
• Knowledge of neural rendering techniques (NeRFs, Gaussian Splatting).
• 7+ years of experience programming in C++ and Python, with GPU programming experience.
• Solid mathematical foundation in geometry, linear algebra, and optimisation.
• Fluent English and strong communication skills.

What We Offer

• A great team and culture – please see our colleague video.
• An exciting career as an integral part of a world‑leading software company providing solutions for architecture, engineering, and construction.
• An attractive salary and benefits package.
• A commitment to inclusion, belonging and colleague wellbeing through global initiatives and resource groups.
• A company committed to making a real difference by advancing the world’s infrastructure for better quality of life, where your contributions help build a more sustainable, connected, and resilient world.

Please submit your resume in English.

About Bentley Systems

Around the world, infrastructure professionals rely on software from Bentley Systems to help them design, build, and operate better and more resilient infrastructure for transportation, water, energy, cities, and more. Founded in 1984 by engineers for engineers, Bentley is the partner of choice for engineering firms and owner‑operators worldwide. Through our digital twin solutions, we help infrastructure professionals unlock the value of their data to transform project delivery and asset performance.

Equal Opportunity Employer

Bentley is proud to be an equal opportunity employer and considers for employment all qualified applicants without regard to race, colour, gender/gender identity, sexual orientation, disability, marital status, religion/belief, national origin, caste, age, or any other characteristic protected by local law or unrelated to job qualifications.