Senior Fullstack Engineer for AI Tax Platform (Remote)

DNA Technology; Łódź; On-site; PLN 207,000 - 248,000; Full time

Job summary

DNA Technology is seeking a senior fullstack engineer to help build an AI-powered tax platform used by US accounting firms. You’ll own features end-to-end, from problem discovery to production, shipping and learning from real user feedback.

You will design React interfaces, implement TypeScript APIs and Python backend services, collaborating with AI, product and domain experts. This is a fully remote role in Poland with strong ownership and impact.

Qualifications

• Senior-level experience building fullstack apps (React + Python).
• Strong product mindset focused on user outcomes.
• End-to-end ownership from problem to production.

Responsibilities

• Build and maintain fullstack features for AI-powered tax products.
• Design and implement React interfaces, TS APIs and Python services.
• Own features from discovery through release and iteration.
• Leverage usage data and feedback to guide improvements.
• Collaborate with engineering, AI, product and domain experts.

Skills

React

Python

TypeScript

Cloud infra

Google Cloud

Azure

Frontend

Backend

Tools

React tooling

APIs

Job description

DNA Technology is seeking a senior fullstack engineer to help build an AI-powered tax platform used by US accounting firms. You’ll own features end-to-end, from problem discovery to production, shipping and learning from real user feedback.

You will design React interfaces, implement TypeScript APIs and Python backend services, collaborating with AI, product and domain experts. This is a fully remote role in Poland with strong ownership and impact.