Level up CI/CD, Microservices, IDP, Testing, Observability.
How I can help
30+
Free Consultations
8
Mentees
I work with teams on delivery speed and reliability: CI/CD, microservices, internal developer platforms,
testing strategy, and observability. Pick a service below to learn more and purchase or get in touch.
“Thank you for the insightful conversation and valuable advice!”
— Enis Halilaj, Software Developer @ Evonem
“We laid out a plan that fits both the topics I want to explore and the way I like to learn. While working on my first sprint, one challenge has already made me rethink how I approach modularity and domain boundaries in Spring apps.”
— Mikiyas Eshetu, Software Developer
“The conversation with Marcin Grzejszczak was a blast, as always! We spoke about Event Mesh (...). Marcin picked up on the topic right away and sold me on some very interesting ideas! I highly recommend Marcin's consultations.”
— Chris Suszyński, Senior Developer @ Red Hat
“I expected to receive a huge dose of knowledge about architecture and Spring, but what struck me most was his extraordinary kindness and lack of any barriers.”
— Mikołaj Telus, Java Developer
“Had a great chat today with Marcin Grzejszczak — if you have a chance for conversations like this, take it. Totally worth it!”
— Emanuel Trandafir, Senior Java Developer
“After years in leadership, I felt my tech edge fading. Rebuilding with Marcin’s mentorship — highly recommended.”
— Kamil Trepczyński, Development Team Lead @ GFT Group
“I just had a great conversation with Marcin Grzejszczak, and I highly recommend such a consultation. Marcin answered my current questions about career building, development as a programmer, and the IT industry in general, including Spring. If you have the opportunity, it's worth taking advantage of his knowledge :)”