Senior Java Developer (Performance & Scalability)

SwissPeak Partners · Warsaw Metropolitan Area
LinkedIn

Posted

Jul 09, 2026 (6d ago)

Seniority

Senior

Work Model

Not Specified

Type

Full-time

Category

Backend

Salary

Not specified

Skills

Agile Angular Java Kubernetes OAuth Oracle PostgreSQL Redux Scrum SQL SQL Server SSO TDD TypeScript

Description

We are collaborating with a global technology provider in the FinTech space in hiring two experienced Java engineers to join a cross-functional Scrum team rebuilding a cloud-native trading and collateral platform at scale. If you are an experienced Java Software Engineer looking for a hands-on coding role with a strong focus on solving performance issues, this might be the right role for you. Responsibilities: Contribute to rearchitecting performance-critical functionality to remove bottlenecks Investigate performance limitations and drive both short-term and long-term fixes Build out the platform's future architecture roadmap Work directly with Senior Architects on key technical initiatives Requirements: 5+ years of hands-on Java SE/JEE in enterprise environments Real performance engineering experience Strong SQL (Oracle, SQL Server or PostgreSQL) Spring, JMS, JPA/Hibernate, REST APIs TypeScript and Angular v2+ (Observables, Redux) OAuth, OpenID Connect, SSO Kubernetes / OpenShift Agile / TDD Fluent English Employment : Contracting or Permanent Interested? Apply directly to receive more information!