Junior Software Engineer - Cross-platform C++ - Multipass

Canonical; London; Remote; GBP 40,000 - 60,000; Full time

Job summary

A leading company in open-source software development is looking for a Junior Software Engineer to work on Multipass, enhancing the developer experience across macOS and Windows. The role involves coding, mentoring, and collaborating within a distributed team while working on new features. You will enjoy a supportive environment that encourages professional growth and offers competitive compensation including bonuses and learning budgets.

Benefits

Personal learning and development budget of USD 2,000 per year

Annual compensation review

Recognition rewards

Annual holiday leave

Maternity and paternity leave

Employee Assistance Programme

Opportunity to travel to new locations to meet colleagues

Priority Pass and travel upgrades for long-haul company events

Qualifications

• Expertise in modern C++ development.
• High standards for code quality and testing.
• Experience with software testing and test-driven development.

Responsibilities

• Ensure Multipass is easy and intuitive to use.
• Architect new features and design user experience.
• Debug, track down, and fix user-reported issues.

Skills

C++

Cross-platform development

Communication

Education

Bachelor’s or equivalent in Computer Science, STEM or similar degree

Tools

Hyper-V

VirtualBox

KVM

QEMU

Job description

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Junior Software Engineer - Cross-platform C++ - Multipass, London

Client: Canonical

Location: London, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Reference: 1d240955925d

Job Views: 4

Posted: 29.06.2025

Expiry Date: 13.08.2025

Job Description:

Use your deep C++ skills on Windows and MacOS to build an amazing open source developer experience with Multipass, a workstation mini-cloud providing Ubuntu and appliance VMs on demand for build, test, and prototyping. The Multipass team is hiring a Software Engineer to join our distributed team. We value quality in our code and great user experience.

Multipass is available for macOS, Windows, and Linux. It allows you to launch VMs easily, similar to cloud services like AWS, Azure, or GCP, but locally on your workstation.

The goal is to provide developers with a local cloud environment for running builds, testing cloud appliances, or testing cloud deployments and scripts, free of charge. Some use it as a build farm on shared servers.

As a Software Engineer, you will play a leadership role in designing, mentoring, reviewing, and coding.

Location: This is a remote position available in the EMEA region only.

What you will focus on

• Ensure Multipass is easy and intuitive to use
• Architect new features and design the user experience
• Write high-quality code to create new features and fix bugs
• Review code and architecture as part of Canonical’s engineering process
• Collaborate proactively with a distributed team
• Debug, track down, and fix issues encountered by users
• Foster the open source community and support customers when needed
• Travel internationally for up to two weeks, twice a year, for company events

What we are looking for in you

• Cross-platform development experience on macOS and/or Windows
• Expertise in modern C++ development
• Experience with software testing and test-driven development
• High standards for code quality, testing, and design
• Knowledge of hypervisor technologies such as Hyper-V, VirtualBox, KVM, and QEMU
• Open source experience and involvement
• Knowledge of CI systems is a plus
• Ability to learn quickly about new systems and techniques
• Excellent communication skills in English, both verbal and written
• Bachelor’s or equivalent in Computer Science, STEM, or similar degree

What we offer you

We consider geographical location, experience, and performance in shaping compensation worldwide. We revisit compensation annually (and more often for graduates and associates) to recognize outstanding performance. In addition to base pay, we offer a performance-driven annual bonus. We provide additional benefits reflecting our values and ideals, balanced to meet local needs globally.

• Distributed work environment with twice-yearly team sprints in person
• Personal learning and development budget of USD 2,000 per year
• Annual compensation review
• Recognition rewards
• Annual holiday leave
• Maternity and paternity leave
• Employee Assistance Programme
• Opportunity to travel to new locations to meet colleagues
• Priority Pass and travel upgrades for long-haul company events