Principal Software Engineer

Role Overview

Join SimCorp, a leading FinTech company, as a Principal Software Engineer. You will drive technical excellence, lead backend development, and mentor team members. You will work with.NET technologies, databases, and Azure cloud ecosystem to build scalable solutions.

What You Will Do

Make key design and implementation decisions, promote best engineering practices, initiate innovations, and lead epic/features analysis. You will also support, coach, and nurture engineers to cultivate a proficient team.

Why It Might Be a Fit

This role requires a strong mix of hands-on engineering, architectural thinking, and leadership. You will have the opportunity to work on business-critical applications, drive technical strategy, and stay up-to-date with emerging trends and technologies.

Requirements

• 7+ years of hands-on experience with.NET technologies (C#, Microsoft.NET)
• A backend-first mindset with strong architectural rigor
• Proven experience building REST APIs with.NET (OData experience preferred)
• Strong working knowledge of Azure cloud services
• Strong database expertise: Proficiency with SQL Server
• Proficient understanding of design patterns and principles
• Strong background in software development practices such as TDD, BDD
• Experience with Docker/Kubernetes, especially AKS
• Familiarity with messaging platforms such as Service Bus, Event Hub, Kafka
• Strong background in distributed systems, REST API design, asynchronous messaging, and cloud-native patterns
• Solid working knowledge of DevOps practices, CI/CD pipelines, IaC, automated testing, and application monitoring
• Excellent communication skills and experience leading engineers or cross-functional teams
• Experience with Git and collaborative workflows
• Solid experience in Agile/Scrum environments
• Excellent problem-solving skills with the ability to make sound architectural and technical decisions
• Knowledge of Angular (v10+), TypeScript, and frontend architecture principles is a plus

Benefits

• Flexible working hours and hybrid model
• Modern office with quiet zones and ergonomic workstations
• Base salary with annual bonus structure
• Holiday allowance upon a 2-week vacation
• Occasional remote work across Poland and international options available
• Employer-paid Medicover Platinum healthcare package
• Multisport card with 75% employer contribution
• Unum group life insurance
• Medicover travel insurance for private trips and global business travel insurance
• Possibility to join Deutsche Börse Group Share Plan
• Copyrights program for certain roles
• Possibility to develop your career in an international environment
• Professional training and courses provided by SimCorp
• Polish language classes for foreign employees; German and English classes based on business needs
• Integration events, volunteering initiatives and employee-led clubs