Aleksandar Čekrlić
Staff Software Engineer at XMTP Labs
Kraljevo, Central Serbia
Summary
👤
Senior🎓
Top SchoolAleksandar Čekrlić is a Staff Software Engineer with eight years of experience specializing in blockchain, Web3 infrastructure, and high-performance distributed systems. He has led development of core peer-to-peer node software and networking layers using Go, libp2p and IPFS, and implemented consensus and resource-isolation solutions for decentralized compute networks. Aleksandar combines low-level systems expertise—from C-based cross-platform system software to cgroups/Job Objects—with cloud-native practices like Docker, GraphQL APIs, and observability via OpenTelemetry and Prometheus. A founder of a consulting practice and a key engineer on projects that integrated blockchain data into exchanges and analytics platforms, he’s as comfortable reverse-engineering APIs as designing scalable indexing services. Based in Serbia, he’s driven by curiosity and an engineer’s urge to “look under the hood,” often surfacing non-obvious performance improvements and resilience guarantees in production systems.
8 years of coding experience
11 years of employment as a software developer
Bachelor's Degree Electrical Engineering / Computer Science, Bachelor's Degree Electrical Engineering / Computer Science at Faculty of Technical Sciences Čačak
English, Serbian
Github Skills (45)
provisioning10
type-safety10
libp2p10
blockchain10
daemon10
p2p10
messaging9
serializer9
programming-language9
cosmos9
move-semantics9
interpreter9
virtual-machine9
cadence9
parser9
Programming languages (7)
Github contributions (5)
Maelkum/b7s-toolbox
Apr 2023 - Aug 2025
some experiments and utilities written to test some of the b7s stuff
Contributions:7 PRs, 35 pushes, 8 branches in 2 years 4 months
Maelkum/Maelkum
Aug 2020 - Nov 2025
Contributions:6 pushes in 5 years 3 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.