Senior Software Engineer

Azul Systems

Location:
Czechia, Prague

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

We are looking for a Senior Software Engineer to join the development team behind Azul Zulu builds of OpenJDK, one of the most popular OpenJDK builds in the world. Along the OpenJDK builds, we are responsible for Azul Mission Control (ZMC), ZIUpdater,.. and other related projects. We also have a considerable impact on Java development and the whole Java community.

Job Responsibility:

Contribute to the functionality, quality, and timely delivery of the builds of OpenJDK
Design and implement new product features and enhancements
Participate in OpenJDK development
Provide technical expertise to field engineering and customer services

Requirements:

Strong proficiency in C/C++
Core Java understanding (just a plus)
Experience with at least one scripting languages: sh/bash/ksh, powershell
Good understanding of operating system concepts: file systems, networking protocols, processes, IPC
Familarity with tooling: debuggers (gdb, windgb), profilers
Solid understanding of basic Computer Science concepts (data structures and algorithms)
Experience in low-level and system programming is a big plus: concurrent programming, synchronization, memory management, languages runtimes, memory standard libraries
Familarity with programming for Linux/Windows/macOS, Solaris is a plus
Experience with assembly for x86/Arm is a plus
BS/BA in Computer Science or equivalent
Your presence in Czechia and valid working visa is required for this role

Nice to have:

Core Java understanding
Experience in low-level and system programming
Familarity with programming for Linux/Windows/macOS, Solaris
Experience with assembly for x86/Arm

What we offer:

Equity Program - be part of the company success
Annual bonus based on company performance
Referral Program - bring your colleague we would all love to work with
IT Equipment - MacBook Pro or any other HW according to your preferences
Work-life balance - 5 weeks of holidays, 5 sick days, flexible working hours, 100% work from home also possible
Offices in Prague City Centre - if you prefer
Most importantly you will work with top experts worldwide who contribute to the Java ecosystem

Additional Information:

Job Posted:
December 06, 2025

Work Type:

Hybrid work

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Senior Software Engineer - Core