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Senior Python Backend Engineer

Workana Uruguay • Mexico


No Relocation

Posted: May 4, 2026

Job Description

Frenzy AI is building a next-generation personalization and search platform for e-commerce. We’re looking for a Senior Backend Engineer to help scale the Python backend powering live e-commerce experiences.

This is a backend-first role focused on scalability, search, API performance, and integrating machine learning workflows into production environments. The ideal candidate is senior, hands-on, self-driven, and comfortable working in a small team where ownership and fast learning are essential.

Responsibilities

  • Build and scale backend APIs for live e-commerce use cases
  • Develop and improve backend functionality for search systems
  • Work on scalability, performance, reliability, and cost optimization
  • Improve API response times and server-side platform performance
  • Integrate machine learning workflows into backend production systems
  • Build and support backend components for search, personalization, and recommendation use cases
  • Work with technologies such as Python, Flask, MySQL, Redis, Elasticsearch, and AWS
  • Own features end-to-end, from design and development to deployment, monitoring, and support
  • Collaborate closely with the backend lead and broader team while taking responsibility for core backend work
Frenzy AI is building a next-generation personalization and search platform for e-commerce. We’re looking for a Senior Backend Engineer to help scale the Python backend powering live e-commerce experiences.This is a backend-first role focused on scalab...
  • Strong backend engineering experience with Python, ideally Flask or Django
  • Proven experience building production-grade REST APIs
  • Hands-on experience with MySQL and Redis
  • Strong experience with Elasticsearch
  • Practical experience with semantic search, relevance tuning, ranking, or recommendation systems
  • Strong experience with AWS; ECS experience is preferred
  • Experience with AWS data services such as Athena, DynamoDB, Firehose, and S3
  • Experience with GitHub workflows, CloudFormation, and CI/CD pipelines
  • Working knowledge of JavaScript and React
  • Proven experience operating high-scale, low-latency production systems
  • Experience working with large codebases or large applications at scale
  • Experience integrating AI/ML workflows into production environments
  • Ability to work independently, learn quickly, and contribute without heavy day-to-day hand-holding
  • Familiarity with Shopify APIs or the Shopify ecosystem is a plus, but not required

Additional Content

Frenzy AI is building a next-generation personalization and search platform for e-commerce. We’re looking for a Senior Backend Engineer to help scale the Python backend powering live e-commerce experiences.

This is a backend-first role focused on scalability, search, API performance, and integrating machine learning workflows into production environments. The ideal candidate is senior, hands-on, self-driven, and comfortable working in a small team where ownership and fast learning are essential.

Responsibilities

  • Build and scale backend APIs for live e-commerce use cases
  • Develop and improve backend functionality for search systems
  • Work on scalability, performance, reliability, and cost optimization
  • Improve API response times and server-side platform performance
  • Integrate machine learning workflows into backend production systems
  • Build and support backend components for search, personalization, and recommendation use cases
  • Work with technologies such as Python, Flask, MySQL, Redis, Elasticsearch, and AWS
  • Own features end-to-end, from design and development to deployment, monitoring, and support
  • Collaborate closely with the backend lead and broader team while taking responsibility for core backend work
Frenzy AI is building a next-generation personalization and search platform for e-commerce. We’re looking for a Senior Backend Engineer to help scale the Python backend powering live e-commerce experiences.This is a backend-first role focused on scalab...
  • Strong backend engineering experience with Python, ideally Flask or Django
  • Proven experience building production-grade REST APIs
  • Hands-on experience with MySQL and Redis
  • Strong experience with Elasticsearch
  • Practical experience with semantic search, relevance tuning, ranking, or recommendation systems
  • Strong experience with AWS; ECS experience is preferred
  • Experience with AWS data services such as Athena, DynamoDB, Firehose, and S3
  • Experience with GitHub workflows, CloudFormation, and CI/CD pipelines
  • Working knowledge of JavaScript and React
  • Proven experience operating high-scale, low-latency production systems
  • Experience working with large codebases or large applications at scale
  • Experience integrating AI/ML workflows into production environments
  • Ability to work independently, learn quickly, and contribute without heavy day-to-day hand-holding
  • Familiarity with Shopify APIs or the Shopify ecosystem is a plus, but not required