What does an Apache CloudStack developer do?
An apache cloudstack developer writes and maintains code for the open source cloud management platform. This role focuses on building core server features, developing external plugins, and ensuring system stability through rigorous testing. You modify the java based codebase to add new application programming interfaces or adjust existing commands. Your work directly impacts how organizations manage their private and public cloud infrastructure.
- Clone the source repository with git and build the software using maven profiles to establish a local development environment. You configure the build settings to compile the core server and any associated plugins from source code. This step ensures your local setup matches the production requirements before you begin writing new features or fixing bugs.
- Create unit tests and integration tests using the marvin framework to validate your code changes against expected behaviors. You run these test suites in the cloudstack simulator to verify functionality without needing physical hardware or live infrastructure. Fix any failures reported by the simulator or static analysis tools like findbugs and pmd before submitting your work.
- Submit patches or merge requests that include verified code, updated documentation, and supporting test logs for review. You update the project wiki to explain new features or api modifications so other developers can understand your contributions. Include static analysis reports and run outputs as evidence that your changes meet the project quality standards.
How to hire an Apache CloudStack developer on Upwork
Step 1: Post a job
Define your infrastructure requirements clearly to attract developers who understand cloud management server architecture. Use the Job Post Generator powered by Uma™, Upwork's Mindful AI to draft a precise description from a few sentences about your needs. You can write a new post, update a saved draft, or reuse an existing post to start your search.
- Specify whether the role involves core software modification, plugin development, or environment setup using Maven build profiles.
- List required tools such as Git for version control and the CloudStack simulator for testing without real infrastructure.
- Clarify if the developer must generate unit tests with Marvin or update wiki documentation alongside code submissions.
Step 2: Evaluate candidates
Look for portfolios that demonstrate experience building CloudStack from source and running integration test suites. Uma can run instant video interviews and build shortlists with side-by-side comparisons to help you assess technical fit quickly.
- Check for evidence of patch submissions that include verified tests, static analysis reports, and supporting run logs.
- Verify familiarity with static analysis tools like FindBugs, PMD, or Coverity to maintain code quality standards.
- Review past work involving API modifications or interface changes to ensure they handle complex system integrations.
Step 3: Interview your top choices
Discuss specific workflows such as cloning repositories and executing simulator-based tests to validate their practical knowledge. Interviews can be scheduled and conducted within Upwork Messages with an immediate transcript and summary after each one.
- Ask how they troubleshoot build failures when compiling CloudStack components using specific Maven profiles.
- Request examples of how they document feature changes and update wiki content for team clarity.
- Explore their approach to writing effective integration tests for new plugins or command additions.
Step 4: Agree on scope and begin work
Set clear milestones for code merges, test coverage, and documentation updates before starting the engagement. Use Upwork Messages and the contract workroom for communication and project management, plus identity verification, payment protection, hourly tracking, and project funds for security.
- Define deliverables such as functional patches, updated unit tests, and clean static analysis reports for each milestone.
- Establish a schedule for submitting code changes alongside required test logs and evidence of successful builds.
- Agree on protocols for reviewing and merging pull requests to keep the development pipeline efficient and organized.
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