Senior Software Engineer – Fintech Platform & Systems

Euroclear; Polska; Hybrid; PLN 306,000 - 524,000; Full time

Benefits offered by this job

Competitive salary

Hybrid work model

International environment

Learning & development

Job summary

Euroclear is seeking a Senior Expert Engineer to join the Group Business Solutions division. You will lead design, architecture, and development of complex features, mentor juniors, and collaborate with cross-functional teams to deliver robust, scalable systems.

You will drive technical investigations, define requirements, and promote best practices while maintaining production stability. The role requires strong English skills and 5+ years in software engineering, with hybrid work options in

Qualifications

• Hands-on experience as a software engineer (at least 5 years).
• Advanced understanding of software related system designs and technology stacks.
• Solid knowledge of solution development and design principles.
• Ability to interpret business requirements, translate them into practical technical solutions.
• Proactive in learning, collaboration across teams, and cloud/AI/automation initiatives.
• Strong command of English, both spoken and written.
• Experience with tools/platforms such as Mainframe: PL/I or Cobol, DB2, MQ, CICS.
• Nice to have: Java/.NET, APIs/Integration, Azure, Kafka, event-driven architecture, CI/CD pipelines, Kubernetes, and multiple cloud environments.

Responsibilities

• Lead the design, architecture, and development of complex features, owning end-to-end delivery.
• Provide expert input to technical decisions and mentor junior engineers.
• Contribute to ideation workshops with expert insights and product improvements.
• Define and validate complex technical requirements and improve planning accuracy.
• Ensure production stability and guide troubleshooting across teams.
• Create and improve design documentation aligned with architecture standards.
• Drive adoption of best practices and coding standards across the team.
• Take ownership of applications' quality, support, and evolution.
• Perform production support including after-hours when required.

Skills

Software engineering

System design

English proficiency

Cloud migration

CI/CD pipelines

Java/.NET

APIs / integration

Azure / Kafka

Docker / Kubernetes

Tools

Mainframe PL/I

Cobol

DB2

MQ

CICS

Jenkins

Git

Docker

CI/CD tools

Kubernetes

Azure

AWS

GCP

Linux

Visual Studio

Job description

Euroclear is seeking a Senior Expert Engineer to join the Group Business Solutions division. You will lead design, architecture, and development of complex features, mentor juniors, and collaborate with cross-functional teams to deliver robust, scalable systems.

You will drive technical investigations, define requirements, and promote best practices while maintaining production stability. The role requires strong English skills and 5+ years in software engineering, with hybrid work options in