Lead-level backend ownership. AI-first delivery. Architecture decisions.We are looking for a highly senior backend engineer who can operate at Lead Engineer / Architect level.This is not a role for someone who only executes tickets. We need someone who can make architecture decisions independently, design systems with long-term scalability in mind, and turn ambiguous product needs into production-ready backend solutions.This is a high-ownership role on a lean team. The default mode of execution is AI-first. Engineers use AI agents to accelerate research, planning, implementation, testing, and refinement, but ownership stays fully with the engineer. The person in this role must be able to use AI to move fast while maintaining strong judgment around architecture, correctness, security, performance, and reliability.We are specifically looking for candidates who have already held responsibilities similar to Lead Engineer, or Architect in previous roles.The workDesign and own backend services in NestJS and TypeScript, from schema to productionMake architecture decisions independently, with a focus on scalability, maintainability, and reliabilityBuild and maintain GraphQL APIs across a microservices environmentOwn database design, optimization, and reliability in PostgresDefine technical direction, not just implementation detailsSet and enforce quality standards across both AI-generated and manually written codeTranslate ambiguous product needs into clear technical solutionsContribute to system design, infrastructure decisions, testing strategy, and developer productivityOperate in an AI-first workflow without compromising engineering standardsThis is a fast-paced environment with real production stakes. You will be expected to move quickly, think at systems level, and make strong technical decisions with minimal hand-holding. If you are comfortable owning architecture and raising the technical bar in a high-accountability environment, this role is for you.DetailsFully remotePaid in USDEST or PST aligned hoursJob descriptionLead-level backend ownership. AI-first delivery. Architecture decisions.We are looking for a highly senior backend engineer who can operate at Lead Engineer / Architect level.This is a fast-paced environment with real production stakes. You will be expected to move quickly, think at systems level, and make strong technical decisions with minimal hand-holding.DetailsFully remotePaid in USDEST or PST aligned hoursQuestionsDo you have a degree in IT or Computer Science or equivalent experience?Do you have at least 5 years of work experience in software development?Do you have at least 2 years of experience in Nest.js?How many years of experience in Nest.js?Do you have at least 2 years of work experience with databases?Do you have at least 2 years of work experience with Postgres/GraphQL/TypeOrm?How many years of experience do you have in Postgres/GraphQL/TypeOrm?Do you have 3+ years of experience with Node.js?How do you rate your english conversational skills from 1 to 10?What is your salary expectation (monthly) in USD?Do you have experience as a Lead Engineer or Architect?What is your preferred work location?Argentina (Remote, Buenos Aires, Argentina)Brazil (Remote, São Paulo, Brazil)Colombia (Remote, Bolívar, Colombia)Mexico (Remote, México, Mexico)Peru (remote, Arequipa, Peru)