Software Engineer III
Posted: 02/26/2026
Job Number: 41933
Job Description
Software Engineer III
Remote
Summary:
Our company is seeking a full-stack C++/Python/Javascript Software Engineer to join our Fundamental AI Research (FAIR) team, an organization focused on making research breakthroughs in AI.
This role focuses on building and optimizing backend systems for AI demos in our Production environment. The ideal candidate is a generalist with strong backend engineering skills in Python and C++, and is comfortable working in a fast-paced, cross-functional environment. Familiarity with deploying ML models for inference and some frontend/JavaScript experience are pluses. We value engineers who are open to leveraging AI-assisted coding tools in their workflow.
Responsibilities:
- Design, develop, and maintain backend services and APIs to support AI demo applications.
- Collaborate with AI researchers, frontend engineers, and product managers to deliver end-to-end demo experiences.
- Integrate and deploy machine learning models into production systems, ensuring performance and reliability.
- Write clean, maintainable, and well-documented code in Python and C++.
- Contribute to code reviews, testing, and documentation to ensure high-quality deliverables.
- Work with frontend teams and, when needed, contribute to JavaScript-based components.
- Leverage AI-assisted coding tools to significantly speed up the development process.
- Analyze requirements and determine feasibility within time and cost constraints.
- Engage with project teams early to understand goals and clarify backend requirements.
- Extend or replace existing implementations as needed.
Minimum Qualifications:
- Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field, or equivalent experience.
- 5+ years of experience in software design and backend development.
- Strong programming skills in both Python and C++.
- Experience building and maintaining backend systems or APIs.
- Excellent problem-solving and communication skills.
- Ability to work independently and collaboratively in a cross-functional team.
Preferred Qualifications:
- Experience deploying software solutions on FAANG infrastructure
- Experience running or integrating machine learning models in production environments.
- Some Familiarity with JavaScript and frontend development workflows.
- Prior experience with AI-assisted coding tools
Additional Information:
- This is a contingent worker (CW) position with flexible hours (40 hours/week, no overtime).
- The role is focused on backend development for AI demos, but flexibility to contribute across the stack is valued.
- Projects may include building and deploying solutions for research teams, data collection tools, and AI demo experiences.
- The biggest selling point is making AI experiences delightful and usable for people—turning complex workflows into fun, engaging demos.
Top Skill Sets:
- Python (5+ years)
- C++ (5+ years)
- Backend/API development
- Communication and collaboration
- Experience with ML model serving and optimization
- Familiarity with frontend/JavaScript
Pay range is $84 - $89 per hour with full benefits available, including paid time off, medical/dental/vision/life insurance, 401K, parental leave, and more. Our compensation reflects the cost of labor across several US geographic markets. Pay is based on several factors including market location and may vary depending on job-related knowledge, skills, and experience.
THE PROMISES WE MAKE:
At Crystal Equation, we empower people and advance technology initiatives by building trust. Your recruiter will prep you for the interview, obtain feedback, guide you through any necessary paperwork and provide everything you need for a successful start. We will serve to empower you along the way and provide the path for your professional journey.
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