Junior Digital Twin Engineer

Title: Junior Digital Twin Engineer (Fresh Graduate)

Team: Surbana Technologies Pte. Ltd.

Role Overview

As a Junior Digital Twin Engineer, you will contribute to the design, development, and deployment of intelligent Digital Twin solutions for smart buildings and infrastructure. You will work closely with engineers, designers, and domain experts to build real-time, data-driven 3D environments that bridge the physical and digital worlds. Digital Twins are dynamic, data-rich models that integrate real-time sensor data, simulations, and analytics to monitor, predict, and optimize real-world systems across their lifecycle. This role provides hands-on experience across the full Digital Twin stack—from visualization to IoT integration and intelligent automation.

Key Responsibilities

• Digital Twin Development (3D & Applications)
  Develop and maintain Digital Twin applications using Unity (primary) and explore other technologies such as Unreal Engine and Three.js where required
  Implement interactive and responsive user interfaces (e.g., Unity UI Toolkit)
  Integrate real-time data into 3D environments for visualization and control of smart building systems
• System Integration, Data Pipelines & Real-Time Communication
  Integrate Digital Twin applications with backend systems, APIs, and databases to support real-time data flow between physical and digital systems
  Work with IoT data streams and implement real-time communication using messaging systems (e.g., NATS) and protocols such as WebSocket for live updates
  Assist in debugging and maintaining data pipelines, ensuring reliable data synchronization, latency handling, and system stability
• Deployment & Onsite Support
  Assist in deploying Digital Twin solutions in production environments (e.g., buildings, facilities)
  Support testing, debugging, and optimization of systems under real-world conditions
  Collaborate with stakeholders (e.g., facility managers, engineers) during deployment and handover
• R&D and Automation
  Conduct research and experimentation to improve:
  Development workflows
  Project operations and delivery pipelines
  Knowledge management systems
  Build automation pipelines using tools such as n8n, scripting, or AI-assisted workflows
  Prototype new capabilities to enhance Digital Twin scalability and performance

What You Will Gain

• Hands-on experience building end-to-end Digital Twin systems (3D + IoT + backend + analytics)
• Exposure to Smart City and Smart Building technologies (BIM, GIS, IoT, AI)
• Real-world deployment experience in production environments
• Opportunity to work with multidisciplinary experts across engineering, construction, and operations

Career Growth & Learning Opportunities

You will gain exposure to the full maturity spectrum of Digital Twins, which evolve across five levels of capability:
Descriptive Twins – 3D visual models and centralized data
Informative Twins – Integration of real-time IoT and operational data
Predictive Twins – Analytics and forecasting insights
Comprehensive Twins – Simulation and “what-if” scenario modelling
Autonomous Twins – AI-driven systems capable of decision-making and automation

Requirements

• A degree in Computer Science, Software Engineering, or related field
• Familiarity with one or more programming languages (C#, JavaScript, Python, etc.)
• Basic understanding of software engineering principles and problem-solving skills
• Interest in one or more of the following: Real-time 3D (Unity, Unreal, WebGL), IoT systems and data integration, AI, computer vision, or data analytics
• Strong willingness to learn and adapt in a fast-evolving technology space

Good to Have

• Experience with Unity or other 3D engines
• Exposure to REST APIs, backend systems, or cloud platforms
• Familiarity with BIM/GIS concepts or tools
• Interest in workflow automation (e.g., n8n, scripting, AI tools)

Why This Role is Different

Unlike a typical junior software engineer role, this position blends:
Real-time 3D development
Systems engineering (IoT + backend)
Data + AI R&D and automation
You won’t just build features—you’ll help shape how Digital Twin systems are built and deployed.

At Surbana Jurong, we put talent, hard work, teamwork and a fun workplace together to approach problems and solve them creatively and collaboratively. Join us in making a positive impact on the world!

Activate your Personal Job Alerts

Activate your Personal Job Alerts now and you will be notified of opportunities as soon as they are advertised.

Current SJ Employees

If you are a current SJ employee, please apply for available positions in the Group by using the Internal Career Site

SJ is a diverse collective of problem solvers for the built environment, continually reimagining ways to create a smart and sustainable future. Headquartered in Singapore, the group has a global talent pool of 16,000 in its member companies AETOS, Atelier Ten, B+H, CHIL, KTP, Prostruct, Robert Bird Group, SAA, SMEC and Surbana Jurong, based in more than 120 offices in over 40 countries. They include architects, designers, planners, engineers, facilities managers and other specialists driven by progressive thinking and creative ideas to shape a better future. Its technical experts deliver sustainable solutions that cover the entire project life cycle from planning and design, through to delivery and management, as well as a full suite of multidisciplinary consultancy services across a diverse range of sectors including transportation, water, aviation, healthcare, hospitality and renewables.

A global urban, infrastructure and managed services consulting firm with over 70 years of track record in successful project delivery, SJ has built more than a million homes in Singapore, created master plans in more than 60 countries and developed over 100 industrial parks globally. SJ is #23 in Engineering News-Record’s 2023 Top 225 International Design Firms, #14 in World Architecture 100 2024, and Asia Pacific FM Technology Provider of the Year 2022, awarded by International Facility Management Association.