Senior Software Engineer — AI-Driven SaaS (Kraków)

BlackLine; Kraków; On-site; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Professional development

On-site in Kraków

Inclusive culture

Job summary

BlackLine is launching an Engineering Hub in Krakow and seeks engineers to help build and scale our AI-powered, enterprise SaaS platform. You will own complex features, leverage AI tooling like Cursor and Claude, and drive performance, security, and reliability for finance automation.

You will collaborate with product, design, and other engineers across time zones to deliver high-quality software. This role emphasizes mentorship, architectural excellence, and shipping impactful, production-ready

Qualifications

• Proven experience building scalable SaaS applications.
• Proficiency in C# and software architecture.
• Experience with CI/CD and infrastructure-as-code.
• Strong debugging and performance optimization skills.
• Ability to work across time zones.

Responsibilities

• Build and ship high-impact features in a global SaaS platform.
• Design scalable, secure microservices for enterprise use.
• Mentor teammates and participate in code reviews.
• Collaborate with product managers, designers, and other engineers.

Skills

C#

Software architecture

CI/CD

Distributed tracing

Good communication

Tools

Cursor

Claude

AWS

Azure

Google Cloud

Job description

BlackLine is launching an Engineering Hub in Krakow and seeks engineers to help build and scale our AI-powered, enterprise SaaS platform. You will own complex features, leverage AI tooling like Cursor and Claude, and drive performance, security, and reliability for finance automation.

You will collaborate with product, design, and other engineers across time zones to deliver high-quality software. This role emphasizes mentorship, architectural excellence, and shipping impactful, production-ready