Full Stack Developer

Simplex 3D is looking for a Senior Full-Stack Software Engineer to join our growing team. We’re building the future of 3D urban planning and geospatial visualization, combining photorealistic 3D, large datasets, sketching tools, GenAI and LLMs to a cutting-edge application with real-world impact.

Responsibilities

Design, develop, and maintain robust full-stack applications integrating both AI capabilities and geospatial data.

Work with existing codebase and extend it with new, complex features independently.

Collaborate with the team to deliver high-quality, performance-oriented solutions.

Requirements

BSc in Computer Science / Software Engineering or equivalent.

At least 3 years of experience in full-stack development.

Strong experience in Frontend: React, JavaScript, CSS, HTML.

Strong experience in Backend: Java, Spring Boot, Hibernate, Python.

Solid knowledge of working with Relational Databases (SQL, PostgreSQL).

Hands-on experience integrating AI models via APIs or using execution libraries.

Experience in building multi-agent systems with rigid tool-calling schemas and deterministic routing to solve complex, multi-step enterprise workflows.

Experience with AWS and cloud-based development.

Familiarity with software development methodologies and version control (GitHub).

Proactive, independent, and takes ownership (“big picture” mindset).

Excellent communication skills and team player attitude.

Ability to thrive in a fast-paced, innovative environment.

Advantages

Knowledge of GIS and experience in developing map-based applications or web apps involving geospatial data.

Knowledge of vector databases and experience developing robust RAG-based applications.

Familiarity with the Model Context Protocol (MCP) or designing rigid JSON tool-calling schemas for AI agents.

Knowledge of authentication systems, tokens, and securing API interactions.

We are looking forward to working with you!

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