TurnKey Tech Staffing is seeking an experienced backend developer in Buenos Aires to lead the design and operation of SDUI APIs for Flutter clients. The candidate should have over 7 years of experience in building production microservices and APIs, with strong TypeScript skills and understanding of AWS services.

This role involves improving service reliability, mentoring team members, and collaborating with design and engineering on client compatibility. Advanced English proficiency is required, and adaptable PTO is offered.