Senior Full-Stack Engineer: Python/FastAPI + React + OpenSearch

EPAM Systems, Inc.; Poland; Remote; PLN 180,000 - 260,000; Full time

Job summary

EPAM Systems, Inc. is hiring a Senior Full-stack Developer to ship Python/FastAPI backend and React/TypeScript front-end features.

You will work with PostgreSQL, OpenSearch, and Databricks to improve integrations and performance. Responsibilities include implementing and maintaining web applications, building APIs and integrations for high-load databases, analyzing query performance, building front-end components, adopting GenAI engineering tools, collaborating with the team, owning features,

Qualifications

• 5+ years of production experience with Python, FastAPI, and SQL.
• Web apps, API design, and integration development expertise.
• Strong experience with high-load databases and performance tuning.
• Proficient in TypeScript/React and full-stack delivery.

Responsibilities

• Implement and maintain web applications with Python/FastAPI and SQL.
• Create APIs and integrations that support high-load database operations.
• Analyze and optimize query performance across production systems.
• Build front-end components using TypeScript and React.
• Adopt GenAI engineering tools to improve development workflows.
• Collaborate with the team while progressing autonomously on your assignments.
• Communicate proactively with team members and stakeholders.
• Own product features and drive impact beyond ticket completion.
• Deliver results while navigating ambiguity in a fast-paced startup environment.

Skills

Python

FastAPI

SQL

TypeScript

React

GenAI tools

Communication

Independent work

Tools

PostgreSQL

OpenSearch

Databricks

Claude Code

Job description

EPAM Systems, Inc. is hiring a Senior Full-stack Developer to ship Python/FastAPI backend and React/TypeScript front-end features.

You will work with PostgreSQL, OpenSearch, and Databricks to improve integrations and performance. Responsibilities include implementing and maintaining web applications, building APIs and integrations for high-load databases, analyzing query performance, building front-end components, adopting GenAI engineering tools, collaborating with the team, owning features,