Aplazo

Senior / Lead Fullstack Engineer

Aplazo
Apply
4 months ago
Mexico City, MexicoSenior / Staff+

Responsibilities

  • Design and implement end-to-end product features across mobile and backend systems.
  • Build internal tools, merchant-facing platforms, and customer-facing mobile flows.
  • Design database schemas, APIs, observability, SLOs, alerts, dashboards, documentation, and tests.
  • Contribute to or lead architecture and design decisions, including writing proposals and presenting trade-offs.
  • Conduct code reviews, identify correctness and security issues, and mentor engineers.
  • Respond to production incidents and improve runbooks and system reliability.
  • Use AI tools for coding, debugging, refactoring, testing, architecture exploration, and prototyping.
  • Help teammates grow through pairing, feedback, and code reviews, particularly at the Lead level.

Requirements

  • At least 3 years of full-stack experience; 5 or more years for the E3 Lead level.
  • Strong Java/Spring backend skills, with Python or Go as additional experience.
  • Strong production mobile development skills using Flutter and Dart.
  • Experience with REST and GraphQL APIs, PostgreSQL, MongoDB, AWS ECS, and AWS Lambda.
  • Familiarity with microservices, event-driven architectures, unit testing, integration testing, end-to-end testing, CI/CD pipelines, observability, and cloud deployment.
  • Awareness of payments platforms, including flows, constraints, and failure modes in BNPL or fintech products.
  • Fluent Spanish and working English for international collaboration.
  • Ability to write clear technical documentation, explain trade-offs, take ownership, and work product-mindedly in a changing environment.
  • Preferred experience with Angular, React, TypeScript, HTML, CSS, payment systems, payment service providers, payment rails, BNPL, on-call operations, shared libraries, tooling, internal platforms, or technology-stack transitions.
  • Experience using Claude, GitHub Copilot, or ChatGPT for software development and creating reusable AI workflows.

Benefits

  • Remote work is indicated by the #Ly-remote and #LI-Remote markers.
  • Work on a Series B fintech product reaching millions of users across Latin America.
  • Small senior engineering team with substantial ownership and exposure to challenging production problems.
  • Engineering workshops, architecture reviews, direct learning opportunities, and a company-wide agentic AI hackathon.
  • Culture emphasizing RFCs, code reviews, architecture discussions, and candid technical communication.

Tech Stack

AngularAWSCSSDartDatadogFlutterGoGoogle BigQueryGoogle Cloud PlatformGraphQLHTMLJavaJenkinsMongoDBPostgreSQLPythonReactTypeScript

Categories

Aplazo

About Aplazo

201-500 employees
Contact me