About Me


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I am a Senior Software Engineer specializing in backend engineering, distributed systems, and scalable software architecture.

I started my software engineering journey over 10 years ago with Java and backend development, and have since designed and delivered production systems for both large enterprises and fast-moving startups.

My core expertise lies in Java, Python, distributed architectures, data-intensive systems, and cloud-native infrastructure. I work with technologies such as Kafka, MongoDB, PostgreSQL, Docker, Kubernetes, and modern observability stacks to build reliable and scalable platforms.

More recently, I have been focusing on AI/ML infrastructure — integrating AI capabilities into production systems and building the backend, data, and infrastructure layers required to operate them reliably at scale.

I enjoy solving complex engineering problems where software architecture, distributed systems, data, and infrastructure come together.

Profile

Here is some more info about myself to help you get to know me better.

  • Full Name:

    Jarosław Krzemiński

  • Birth Date:

    April 13, 1989

  • Website:

    inperfect.pro

  • Email:

    krzeminskijarek@gmail.com

Proficiency

Here is a non-exhaustive list of technologies I am familiar with.

java logo spring logo svelte logo react logo angular logo nextjs logo html logo css logo js logo mongo logo postgres logo timescale logo redis logo kafka logo docker logo kubernetes logo grafana logo prometheus logo git logo