Member of Technical Staff, Platform Engineer (New Stealth Startup)

The role

This person will productionize AI research and build scalable systems for model training, evaluation, and data collection. They will architect reinforcement learning environments platforms and build backend services, APIs, and data-generation pipelines.

What you will do

• Architect and scale reinforcement learning environments platform and infrastructure.
• Build and operate scalable backend services, APIs, and data-generation pipelines.
• Develop modular environment domains for model training and evaluation workflows.
• Translate research requirements and prototypes into production-quality systems.
• Build full-stack tools and interfaces for research, engineering, and operational workflows.
• Design resilient systems focused on reliability, observability, performance, maintainability, and security.
• Develop and maintain data models, storage systems, and platform integrations.
• Improve platform architecture and engineering practices.
• Partner with Research, Product, Engineering, and Operations teams.
• Participate in technical design discussions and diagnose complex system issues.

Required qualifications

• 6+ years of professional experience building full-stack applications, backend systems, distributed systems, or platform infrastructure.
• Deep proficiency in TypeScript, React, and modern backend architecture.
• Strong experience designing and building scalable backend services, APIs, and data pipelines.
• Solid understanding of PostgreSQL, data modeling, distributed systems, and system design.
• Demonstrated experience building and operating production systems on AWS or GCP.
• Experience developing reliable, observable, and performant production systems.
• Ability to translate research or product requirements into maintainable technical architectures and implementations.
• Strong understanding of software engineering practices, including testing, code review, technical documentation, and production operations.
• Sharp problem-solving capabilities and the ability to diagnose complex issues across the technology stack.
• Ability to collaborate effectively with teams across functions and geographies.
• Strong written and verbal communication skills.
• U.S. citizenship is required.

Nice to have

• Experience working with model training, model evaluation, reinforcement learning environments, AI agents, or data-generation systems

Benefits

• Career track opportunity with potential for rapid advancement
• 100% employer paid, comprehensive health care including medical, dental, and vision for you and your family
• Paid maternity and paternity for 14 weeks at employees' normal pay
• Unlimited PTO, with management approval
• Opportunities for professional development and continued learning
• Optional 401K, FSA, and equity incentives available
• Mental health benefits are available through Tara Mind
• Cost effective GLP-1 solutions available through Crux

About the company

Red Cell Partners is an incubation firm building and investing in rapidly scalable technology-led companies in healthcare, cyber, and national security. They are launching a new startup to redefine how mission-critical organizations adopt AI.