About CONXAI

CONXAI has built a no-code, agentic AI platform for the Architecture, Engineering, and Construction (AEC) and physical industries, focused on knowledge‑automation. We automate high‑stakes, knowledge‑intensive workflows traditionally trapped in siloed data, fragmented tools, and tacit (undocumented) human expertise.

Our multi‑agent systems perform complex reasoning in the physical world and transform bespoke, service‑heavy processes into scalable Service‑as‑a‑Software automation.

CONXAI is trusted by leading AEC companies in Europe, the US, LATAM, and Japan.

Your Role

As a Senior ML Engineer, you will lead the development of the spatial reasoning engine for our agentic AI platform. Your work focuses on the intersection of 3D Semantic Reconstruction, Geometric Deep Learning, and Agentic Inference. You will build pipelines that transform unstructured multi‑modal data into structured, actionable Spatial Knowledge Graphs, prioritizing topological accuracy and semantic grounding over photorealistic rendering. You will design the logic that enables autonomous agents to navigate, reason about, and perform inference on complex 3D environments, ensuring AI‑driven insights are grounded in real‑world physical and engineering constraints.

What You’ll Do

Semantic Scene Reconstruction: Develop algorithms for 3D scene representation that prioritize geometric primitives and semantic labels over pixel accuracy, including surface reconstruction, occupancy mapping, and volumetric segmentation.
Multi‑Modal Fusion: Architect systems that fuse panoptic segmentation representations from CONXAI’s AEC Foundation model with 3D models to generate high‑fidelity, labeled representations.
Knowledge Graph Augmentation: Automate the augmentation of 3D spatial data to CONXAI’s Spatio‑Temporal Knowledge Graphs, mapping the hierarchical and functional relationships between structural elements.
Agentic Inference & Reasoning: Design agentic workflows that perform complex reasoning tasks directly on the STKG.
Actionable Affordance Mapping: Implement methods to identify "affordances" within a 3D volume, defining how agents or users can interact with the environment based on its physical geometry and engineering logic.
Optimization & Scaling: Deploy state‑of‑the‑art models, representations, and inferred domain context into production use‑cases that deliver significant value to customers.

What We’re Looking For

MS/PhD in Computer Science, Robotics, Electrical Engineering, or a related field.
3+ years of industry experience in Computer Vision and Deep Learning.
2+ years of leading 3D Computer Vision projects, specifically in geometric deep learning and 3D reconstruction.
Experience with physics engines, e.g., NVIDIA Isaac Gym, MuJoCo, PyBullet, is a plus.
Experience in Agentic AI implementations with GraphRAG, Langgraph/LlamaIndex is a plus.
Exceptional implementation experience with Open3D/PyTorch 3D, reconstruction (multi‑view stereo, surface reconstruction, and mesh‑fitting, e.g., TSDF), 2D → 3D "lifting".
Thorough understanding of software design.
Previous experience in a fast‑paced technology startup environment is a plus.
Fluent and articulate in English.

Why CONXAI

Edge of Innovation: Be at the forefront of AI in the construction tech space.
High Autonomy: Own the logic, performance, and customer impact of a new paradigm for multi‑modal scene understanding and reasoning.
Top‑Tier Peer Group: Work with a global team of ML engineers, software engineers, and industry practitioners.
Equity & Scale: Competitive compensation with significant equity upside.

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