About Konrad
I'm a backend engineer with 6 years of software development experience in JVM world, including 4 years working professionally with Kotlin. My focus is on building scalable backend systems using Kotlin and microservices architecture, with hands-on experience in fintech, e-commerce, and advertising platforms. I've worked extensively with AWS cloud services and relational SQL databases to deliver reliable and maintainable solutions. In my previous roles, I collaborated closely with product managers, frontend and mobile developers, and business stakeholders to deliver end-to-end features. For the past 4 years, I've been part of multinational teams distributed across different time zones and cultures. I'm also familiar with maintaining and evolving legacy systems, ensuring smooth transitions to modern architectures.
Polish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- OLX Group Ecommerce and ad platformSoftware EngineerSeptember 2022 - Today (3 years and 9 months)A software engineer position in a new team responsible for unification of market specific legacy systems into one country agnostic micro-services infrastructure. We use kotlin with high percentage of test coverage (unit, functional and E2E). Postgres as DB, whole monorepo automatically deployed with gitlab pipeline to AWS cloud. Strong observability approach with NewRelic and own analytics team. SCRUM methodology, demos for key stakeholders. Close work with product. Currently implementing new flow with Online Payments for one of EU markets.
- GFTJunior Backend DeveloperOctober 2021 - August 2022 (10 months)Fintech BE position with kotlin as main language. Developing new banking system for client from Saudi Arabia. Responsible for shared package with templates for new services, databases, security etc. Later focused on security - login functionality, policies, roles. We used kotlin and postgres on BE side. Whole system was in AWS cloud. Worked in SCRUM.
- Asseco PolandJunior Full Stack DeveloperJuly 2019 - September 2021 (2 years and 2 months)Developing new system for public institution in Poland. Resposible for backend (Java), database (Postgres) and frontend (HTML + vanilla JS). Synchronization with various public institution's systems. Implementing flow for court cases (bankruptcy, restructurization). Creating own calculator for different kind of debts (defined by polish law). Developed internal email client with SMTP and IMAP protocols synchronized with the system data.
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Education
- Masters of Applied Computer ScienceAGH University of Science and Technology2019Bachelor of Engineering