Fintech Full-Stack Engineer (Java/Kotlin) – Trading & UX

Teamtailor; Warszawa; On-site; PLN 100,000 - 130,000; Full time

Job summary

A leading fintech company in Warsaw is looking for a Full Stack Software Engineer to join their ambitious project focused on investment management and trading systems. The ideal candidate will have experience in backend development using Java/Kotlin, familiarity with frontend frameworks, and a passion for solving complex financial technology problems. The role emphasizes collaboration, innovation, and delivering exceptional user experiences.

Qualifications

• Experience in backend development with Java and/or Kotlin.
• Familiarity with frontend frameworks, especially React.
• Exposure to cloud infrastructure and automation tools.
• Prior experience in fast-paced or fintech environments.
• Collaborative and eager to contribute across the stack.

Responsibilities

• Design, develop, and maintain backend financial systems and trading platforms.
• Build user-facing interfaces and full-stack features using modern frameworks.
• Contribute to technical architecture decisions and code reviews.
• Focus on solutions that align with business goals.

Skills

Backend development with Java/Kotlin

Frontend frameworks (React)

Cloud infrastructure (AWS, Terraform)

Kubernetes

Tools

PostgreSQL

Clickhouse

Spring Boot

Job description

A leading fintech company in Warsaw is looking for a Full Stack Software Engineer to join their ambitious project focused on investment management and trading systems. The ideal candidate will have experience in backend development using Java/Kotlin, familiarity with frontend frameworks, and a passion for solving complex financial technology problems. The role emphasizes collaboration, innovation, and delivering exceptional user experiences.