Senior Full-Stack Engineer (Java/Python + React) — Flexible

Athenaworks; Argentina; On-site; ARS 104,209,000 - 133,982,000; Full time

Benefits offered by this job

Payment in USD

Flexible work schedule

Non-Working Pay Days Policy

Learning Budget

Impactful industry change

Job summary

Athenaworks in Argentina is seeking a Mid-Senior Full-Stack Engineer to design, build, and maintain scalable backend services and RESTful APIs using Java or Python. You will own features end-to-end from database design to API and frontend work.

Collaborate across disciplines, implement tests, optimize queries, review code, and leverage AI tools to boost development efficiency in a fast-paced startup. Advanced English is required, and the team offers USD compensation, flexible hours, and a

Qualifications

• 4+ years of professional software development experience with full stack work.
• Backend services in Java or Python with relational databases design.
• Strong knowledge of AWS services (SQS, SNS, Lambda, DynamoDB).
• Experience building React + TypeScript web applications.
• Frontend testing using Jest or Cypress.
• Proven ability to leverage AI tools for development Tasks.
• Advanced English proficiency and clear communication.
• Team-oriented, fast-moving startup environment with ownership.

Responsibilities

• Design, develop, and maintain scalable backend services and APIs.
• Collaborate on technical design and feature integration.
• Own features end-to-end from conception to deployment.
• Implement unit/integration/functional tests across the stack.
• Participate in code reviews for frontend and backend.
• Identify performance bottlenecks and optimize queries.
• Troubleshoot issues and apply AI-assisted CI/CD improvements.

Skills

Full-stack development

Java or Python

Relational databases

AWS ecosystem

React and TypeScript

Frontend testing

AI tooling

English proficiency

Startup ownership

Tools

Docker

Kubernetes

AWS CDK

Spring

Job description

Athenaworks in Argentina is seeking a Mid-Senior Full-Stack Engineer to design, build, and maintain scalable backend services and RESTful APIs using Java or Python. You will own features end-to-end from database design to API and frontend work.

Collaborate across disciplines, implement tests, optimize queries, review code, and leverage AI tools to boost development efficiency in a fast-paced startup. Advanced English is required, and the team offers USD compensation, flexible hours, and a