Senior AI-Driven Fullstack Engineer - End-to-End Systems

Flyer One Ventures; Warszawa; On-site; PLN 180,000 - 300,000; Full time

Job summary

Flyer One Ventures in Warsaw is seeking a Senior Fullstack Engineer to own features from database to UI, using PHP/Laravel and Node.js/NestJS with React/TypeScript on AWS.

You will work in a small squad with product and design, applying AI-assisted tools, automated testing, and CI/CD to deliver reliable payroll solutions at speed. You’ll contribute to evolving AI-augmented engineering practices and on-call duties.

Qualifications

• 5+ years of professional software engineering experience in fullstack roles.
• Experience with both backend (PHP/Laravel or Node.js/NestJS) and frontend (React/TypeScript).
• Strong familiarity with AWS, databases, and API design (REST/GraphQL).

Responsibilities

• Own and deliver features end-to-end across the full stack (backend services, APIs, frontend interfaces, and data layers).
• Design, build, and operate production systems in a payroll domain where correctness and reliability are non-negotiable.
• Use AI coding tools as a daily force multiplier for writing, reviewing, and refactoring code.
• Write and maintain automated tests with AI-assisted generation, aiming for high coverage with minimal manual effort.
• Collaborate with product and design in a small squad to scope, estimate, and prioritize work.
• Contribute to defining and evolving our AI-augmented engineering practices and toolchain.
• Take shared ownership of operational concerns: monitoring, alerting, incident response, and on-call rotations.

Skills

Fullstack development

React/TypeScript

PHP/Laravel

Node.js/NestJS

AWS

REST/GraphQL

AI-assisted development

Testing basics

Tools

AWS Cloud

Relational databases

REST API design

Job description

Flyer One Ventures in Warsaw is seeking a Senior Fullstack Engineer to own features from database to UI, using PHP/Laravel and Node.js/NestJS with React/TypeScript on AWS.

You will work in a small squad with product and design, applying AI-assisted tools, automated testing, and CI/CD to deliver reliable payroll solutions at speed. You’ll contribute to evolving AI-augmented engineering practices and on-call duties.