Junior Software Developer – Digital Twin & Simulation Systems

Overview Junior Software Developer – Digital Twin & Simulation Systems role at Moffatt & Nichol. FlexTerm Group runs digital versions of real companies to perform simulations, emulations and real time mirroring of their operations. It is a real-time 3D digital twin platform where complex logistics systems are studied, designed, optimized, developed, and tested before being deployed into production. It allows to model any kind of system; however, it is mostly applied to highly automated facilities such as ports, container terminals, automated warehouses, manufacturing plants, etc. Moffatt & Nichol specializes in large complex waterfront infrastructure projects and is recognized as one of the worldwide leaders in this field. This role is based in São Paulo or Rio de Janeiro offices as part of the FlexTerm Group. As a Junior Software Developer and Modeler you will work closely with engineers to build simulation and emulation models for analysis of various systems and processes within container terminals and other facilities, run models, collect outputs, perform studies, and write technical reports. Responsibilities Craft highly effective C++ code to develop and maintain the applications in the FlexTerm platform. Write unit and integration tests for new and existing functionality. Excel with agile development methodologies. Write technical documentation in the team’s wiki site in Confluence. Deliver FlexTerm solutions to clients world-wide. Develop simulation, emulation and digital twin models using the FlexTerm platform. Includes: modeling real world equipment and devices, writing behavior logic in Lua, defining and exporting metrics, generating real time BI dashboards, running, debugging and validating models. Deploy and integrate the FlexTerm solution with other systems into the client’s IT environment. Documenting modeling assumptions, process flows, results, and issuing reports. Qualifications B.Sc. or M.Sc. in Computer Science, Software Engineering, Math or related discipline (Electrical/Electronics/Computer Engineering, Mechatronics or Mechanical Engineering with emphasis in Robotics). Proven education or experience in computer programming, data structures and algorithms. Fluent in a C-like programming language such as C, C++, C#, Objective-C, Swift, Lua, Java, Javascript. Desired experience in: 3D computer graphics and animation AI/ML development CADD/GIS and 3D graphics modeling capabilities Low level 3D/VR libraries such as OpenGL, GLSL, Vulkan, OpenSceneGraph, PhysX. GUI frameworks such as Qt. AI/ML frameworks such as Torch, TensorFlow, OpenCV. OS scripting languages such as MS-DOS batch, Sh and Powershell. Working with multiple exchange formats like XML, JSON, Protobuf. Working with version control systems such as Git, Gitlab and SourceTree. Working with CAD, GIS and 3D modeling packages such as AutoCAD, Blender and OpenGIS/ArcGIS. Any experience in discrete event simulation modeling is preferred. Experience in software development life cycle is a plus but not required. Experience in port and container terminal operations is a plus. All new hires will be required to successfully complete and pass a pre-employment (post offer) background check in compliance with NIST 800-171. Working Conditions Work is generally performed in a hybrid schedule. Ability to use standard office equipment is required. Travel might be required. Moffatt & Nichol’s EEO Statement As a global business, Moffatt & Nichol relies on diversity of culture and thought to deliver on our goal of Creative People, Practical Solutions serving our client needs, and ensures nondiscrimination in all activities. We draw from the world’s best and brightest, regardless of geographic, cultural, or institutional background. This approach enables us to better understand and serve our clients, foster innovation, and create a rich, collaborative work environment. Moffatt & Nichol is proud to be an Equal Employment Opportunity / Federal Contractor desiring priority referrals of all protected veterans for job openings. If you need more information or require special assistance for persons with disabilities or limited English proficiency, please contact Human Resources at (562) 590-6500 or TTY/TDD users please call 711. J-18808-Ljbffr

Location: São Paulo, São Paulo, BR

Posted Date: 9/17/2025