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David Acosta - Engineering Developer - Contractor in Bogota, Colombia

David Acosta

Senior XR/Unity Developer specializing in AR/VR mobile and immersive experiences

BITECSA SAUniversity of OklahomaBogota, Colombia7 Years ExperienceSenior Level

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About

Unity/C# XR developer who shipped a HoloLens 1 medical congress experience from scratch (including modeling, animation, and full system architecture), later credited with driving retention/revenue and helping the client win an international best-practice award. Has VR (Meta Quest 2) experience integrating OpenAI-powered dialogue and has delivered cross-platform AR/VR interaction patterns across HoloLens and iOS/Android via AR Foundation and the Unity Input System.

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Key Strengths

  • End-to-end ownership of Unity/C# XR project from scope/architecture through shipping (HoloLens 1)
  • Delivered award-winning medical congress XR experience (client received an international best practice award)
  • Strong XR performance optimization under tight hardware constraints (baked animations, pooling, poly reduction)
  • Cross-platform interaction architecture (abstracted input actions across HoloLens/Quest/mobile via Unity Input System + raycasting)
  • Integrated LLM dialogue via OpenAI APIs using async request/response patterns and constrained context/tone

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Experience

Engineering Developer - ContractorBITECSA SA · Dec 2024 – Feb 2025contract
XR Developer - FreelancerZAUBAR · Aug 2023 – Aug 2024freelance
VR Developer – FreelancerGraziles SAS · Sep 2022 – Aug 2023freelance
Unity VR Developer – Full timeSoftermii · May 2022 – Aug 2022
Research assistant - ContractorUniversidad Militar Nueva Granada · Aug 2020 – Feb 2021contract
Mobile Developer- ContractorUniversidad Nacional de Colombia · Aug 2021 – Sep 2021contract
XR Developer - FreelancerGraziles SAS · Jan 2019 – Jun 2022freelance
Junior Unity Developer - Contractor3DVES · Sep 2018 – Dec 2018contract

Education

University of Oklahomamaster, Applied Computing
Universidad Militar Nueva Granadabachelor, Mechatronics Engineering (2018)

Awards

  • Emerging Leaders of the Americas Program (ELAP) - Ontario Tech University

Languages

SpanishEnglish

Certifications

Swift 6 Essential Training (LinkedIn Certificate)iOS 17 Development Essential Training (LinkedIn Certificate)Developing AR/VR/MR/XR Apps with WebXR, Unity & Unreal (University of Michigan, 2021 Certificate)

Publications

8 publications

Augmented Reality medical trainingMixed Reality and Virtual Reality interactionMobile AR tools for eye fundus examinationWearable devices for XR interactionMedical simulation and training

Memberships

  • IEEE

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David AcostaSenior XR/Unity Developer specializing in AR/VR mobile and immersive experiences