Remote Mobile Fullstack Team Leader (FinTech)

Integral Solutions - Data & AI; Warszawa; On-site; PLN 380,000 - 640,000; Full time

Job summary

Integral Solutions - Data & AI seeks an Experienced Fullstack Team Leader to guide cross-functional squads in FinTech systems. You will own the architecture, drive real-time transaction platforms, and ship secure, scalable mobile-first solutions with AI-assisted development practices.

Join a remote, B2B-driven environment where you lead end-to-end delivery from concept to production for millions of users across Poland and beyond.

Qualifications

• 10+ years hands-on software development and leadership in FinTech environments.

Responsibilities

• Lead multidisciplinary squads (Backend, Mobile, QA, Product) across the FinTech stack.
• Own end-to-end delivery of core financial domains from concept to production.
• Define strategy, roadmaps, and ensure engineering excellence.
• Mentor developers and promote AI-driven development practices.
• Drive real-time financial systems with high availability and scalable architectures.
• Ensure security, compliance, and performance across platforms.

Skills

Team Leadership

Fullstack Development

Real-time FinTech

End-to-end Ownership

Cross-functional Collaboration

Tools

Java

Spring Boot

Kotlin Multiplatform

Swift/SwiftUI

AWS

Docker

Kubernetes

Job description

Integral Solutions - Data & AI seeks an Experienced Fullstack Team Leader to guide cross-functional squads in FinTech systems. You will own the architecture, drive real-time transaction platforms, and ship secure, scalable mobile-first solutions with AI-assisted development practices.

Join a remote, B2B-driven environment where you lead end-to-end delivery from concept to production for millions of users across Poland and beyond.