Senior Full-Stack TypeScript Engineer - Fintech, Remote

Scalac; Województwo pomorskie; On-site; PLN 178,000 - 237,000; Full time

Job summary

Scalac is seeking a Senior Full Stack TypeScript Engineer to build high-performance fintech web apps and robust backend services. You will work in autonomous, agile teams delivering real-time financial solutions with a product-focused mindset.

Remote role with B2B engagement, you should excel in TypeScript/JavaScript, Node.js, React, RESTful APIs, databases, testing, and security. Strong English and Polish (min B2) are required to collaborate across EU teams.

Qualifications

• Extensive experience with TypeScript/JavaScript (ES6+) is required.
• Strong Node.js backend expertise.
• Advanced React, HTML5, CSS skills.
• Deep understanding of RESTful APIs (HTTP, JWT, OAuth).
• Experience with PostgreSQL/MySQL databases.
• Proficiency with Git, Linux/Unix CLI, npm/pnpm.
• Unit/integration/E2E testing (Playwright, Cypress).
• Web performance optimization and scalable design.

Responsibilities

• Develop high-performance web applications and backend services.
• Shape next-generation fintech solutions.
• Take ownership of complex features and drive delivery.

Skills

TypeScript

JavaScript

Node.js

React

HTML5

CSS

RESTful APIs

PostgreSQL

MySQL

Git

Linux/Unix

npm/pnpm

Testing (Playwright/Cypress)

Web performance

AI-assisted tools

Code review

Mentoring

English

Polish (B2)

Tools

GitHub Copilot

Cursor

Claude

Gemini

Job description

Scalac is seeking a Senior Full Stack TypeScript Engineer to build high-performance fintech web apps and robust backend services. You will work in autonomous, agile teams delivering real-time financial solutions with a product-focused mindset.

Remote role with B2B engagement, you should excel in TypeScript/JavaScript, Node.js, React, RESTful APIs, databases, testing, and security. Strong English and Polish (min B2) are required to collaborate across EU teams.