Job Title: 3D Sign Language Avatar Engineer / Technical Animator – Real-Time Web PoC
Worldwide
Project Overview We are developing an AI-powered digital accessibility platform featuring a realistic 3D virtual interpreter for Omani Sign Language. We are seeking an experienced 3D Sign Language Avatar Engineer or Technical Animator to build a paid Proof of Concept (PoC) for a real-time, web-compatible signing avatar. This is not a general 3D character-design assignment. The avatar must accurately reproduce linguistic signing movements, including detailed hand shapes, finger articulation, palm orientation, body posture, head movement and facial expressions. The selected specialist will collaborate with: A Text-to-Sign Language NLP engineer. Omani Sign Language experts. Deaf Omani users for validation. Our internal web, mobile, API and infrastructure team. Scope of Work Create or customize a professional, fully rigged 3D human avatar. Implement detailed hand and individual finger controls. Support accurate hand shapes, palm orientation, movement direction and signing location. Implement facial, mouth, eyebrow, eye, head and upper-body expressions. Develop smooth transitions and coarticulation between signs. Retarget and clean motion-capture data where required. Map structured sign input to animation sequences. Support an agreed input format such as JSON, glosses, HamNoSys, SiGML, AZee or another suitable representation. Optimize the avatar for real-time web use. Provide an API, SDK or reusable animation component for integration. Coordinate closely with the Text-to-Sign engineer. Support review and correction by Omani Sign Language experts. Document the avatar pipeline, animation system and integration process. Preferred Technology We are open to recommendations, including: Unity Unreal Engine Blender Three.js or WebGL Web-based real-time 3D frameworks Motion-capture and facial-animation tools The final approach must support practical integration with web and mobile applications. PoC Deliverables Functional, rigged 3D signing avatar. Animation of approximately 50–100 agreed government or public-service phrases. Accurate hand, finger, face, head and body animation. Smooth transitions between signs. Structured input-to-animation pipeline. Browser-based demonstration. Integration API, SDK or reusable web component. Performance testing covering loading time, rendering and animation latency. Source files, rigs, animations, source code and technical documentation. Asset and third-party licence documentation. Final report explaining limitations and requirements for production scaling. Required Experience Proven experience developing 3D sign-language avatars or virtual signers. Strong character rigging and technical-animation experience. Advanced knowledge of hand and finger animation. Experience with facial animation and non-manual sign-language markers. Experience with motion-capture cleanup and retargeting. Experience optimizing 3D content for real-time web or mobile use. Ability to integrate animation systems with structured data and APIs. Generic 3D portfolios without signing, gesture-language, detailed hand-animation or comparable technical work will not be sufficient. When Applying, Please Provide Videos or demos of previous signing-avatar or detailed hand-animation work. The technologies and 3D engines you recommend for this project. How you would represent hand shapes, facial expressions and transitions. How the avatar would consume structured output from the Text-to-Sign engine. Your approach to motion capture versus procedural animation. Your approach to browser and mobile performance. Your estimated timeline and cost for the PoC. Details of any third-party models, plugins or assets that require licensing. Confirmation that editable project files, source code, rigs and project-specific assets will be transferred to the client. Engagement This is an initial paid PoC engagement. Successful delivery may lead to full platform implementation, additional animation content and long-term support. Please begin your application with the phrase “3D Signing Avatar” and include a link to your most relevant signing or detailed hand-animation demo. To Apply Send your CV
- More than 30 hrs/weekHourly
- 6+ monthsDuration
- Entry levelExperience Level
$20.00
-
$30.00
Hourly- Remote Job
- Ongoing projectProject Type
Skills and Expertise
Activity on this job
- Proposals:5 to 10
- Last viewed by client:yesterday
- Interviewing:3
- Invites sent:0
- Unanswered invites:0
About the client
- CanadaBrampton12:17 PM
- $272K total spent157 hires, 33 active
- 260 hours
- Tech & ITMid-sized company (10-99 people)
Explore similar jobs on Upwork
How it works
Create your free profileHighlight your skills and experience, show your portfolio, and set your ideal pay rate.
Work the way you wantApply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
Get paid securelyFrom contract to payment, we help you work safely and get paid securely.
About Upwork
- 4.9/5(Average rating of clients by professionals)
- G2 2021#1 freelance platform
- 49,000+Signed contract every week
- $2.3BFreelancers earned on Upwork in 2020
Find the best freelance jobs
Growing your career is as easy as creating a free profile and finding work like this that fits your skills.
Trusted by