Staff Software Engineer: Frontend & Architecture Lead

TechBiz Global GmbH; Polska; Hybrid; PLN 200,000 - 320,000; Full time

Job summary

TechBiz Global is seeking a Staff Software Engineer to join one of our client's teams. This role emphasizes hands-on engineering leadership and scalable product development.

You will design architectures, write high-quality code in React/Next.js, mentor teams, and drive best practices across the engineering platform while collaborating with cross-functional partners. You should have a strong frontend foundation, experience across APIs and system boundaries, and a track record of delivering

Qualifications

• Strong hands-on experience building customer-facing web products using React and Next.js.
• Front-end engineering background with full-stack capabilities across APIs and integrations.
• Experience designing software architecture across complex systems and domains.

Responsibilities

• Design and implement scalable, high-performing app architecture.
• Write clean, well-documented code and conduct reviews.
• Lead architectural decisions and translate product needs into roadmaps.
• Mentor teams and promote best software engineering practices.
• Ensure security and protect against vulnerabilities.
• Collaborate with cross-functional teams to deliver features.

Skills

React

Next.js

Front-end engineering

API integrations

Communication

Mentoring / coaching

PHP

Vue.js

Domain-Driven Design

SOLID principles

Job description

TechBiz Global is seeking a Staff Software Engineer to join one of our client's teams. This role emphasizes hands-on engineering leadership and scalable product development.

You will design architectures, write high-quality code in React/Next.js, mentor teams, and drive best practices across the engineering platform while collaborating with cross-functional partners. You should have a strong frontend foundation, experience across APIs and system boundaries, and a track record of delivering