Specialist C++ Engineer

Magnopus is seeking an experienced Senior C++ Engineer to work on the core library of their Connected Spaces Platform, an open-source SDK bridging physical and digital divides. This role involves systems engineering across multiple domains and technologies, delivering value to internal and external clients. The successful candidate will navigate a technically broad system, manage multiple language runtimes, and contribute to the platform's evolution through planning, design, and best practices. The role emphasizes asynchronous collaboration, written communication, and autonomy within a team that values clarity, trust, and momentum.

Must Have

• High proficiency with modern C++ (17 or higher)
• Comprehensive knowledge of C++ library development best practices
• Hands-on experience targeting multiple operating systems (Windows, Linux, MacOS, iOS)
• Ability to independently plan and deliver solutions, owning features
• Ability to adapt C++ patterns to other languages like C#, JS, TS
• Self-critical approach to work quality and addressing technical debt
• Practical experience integrating RESTful and/or GraphQL APIs
• Ability to design usable and maintainable API surfaces
• Strong communication skills for technical collaboration
• Experience using and maintaining build systems for cross-platform C++ projects
• Familiarity with real-time networking
• Experience using and maintaining CI/CD pipelines for multi-platform builds
• Focus on delivering stability through testable code

Good to Have

• Experience with embedded scripting runtimes
• Experience with web technologies (Emscripten/WASM)
• Experience with Unreal Engine and/or Unity

Perks & Benefits

• Generous health care
• Time off
• Ongoing education opportunities
• Mentorship opportunities

Magnopus is on a mission to bridge the physical & digital divide with our groundbreaking set of client applications powered by the Connected Spaces Platform: an open-source SDK that is paving the way for the future of the spatial internet.

Through engine interop APIs, creators can build and publish spatial experiences that are as interconnected and accessible as the web pages of today. This innovative platform ensures seamless experiences across multiple technologies, allowing users to navigate through diverse digital and physical spaces without the barriers of switching identities, devices, or interfaces.

We are seeking an experienced Senior C++ Engineer to work on the core library of the Connected Spaces Platform. This role is for a systems engineer who is genuinely excited at the prospect of working across multiple domains and technologies, to deliver value to our internal teams and external clients. We’re looking for an independent thinker who can help define the work that needs to be done.

The successful candidate will be able to navigate a technically broad system consisting of multiple language runtimes, and will find success managing this through a focus on quality and continual improvement. You’ll play a key role in shaping how the platform evolves - from planning and designing solutions to guiding best practices.

We collaborate asynchronously across distributed teams and value written, transparent communication and autonomy. You’ll be joining a team that values clarity, trust, and momentum - where everyone understands their dependencies and takes initiative to keep things moving in the right direction.

By joining Magnopus, you’ll not only work on enhancing the platform’s capabilities, but also contribute to our vision of building an open and accessible spatial internet for all.

We don’t expect anyone to tick every box below - if you bring a strong mix of skills, curiosity, and the drive to keep learning, we’d love to hear from you.

What will help you succeed in this role

• High level of proficiency with modern C++ (17 or higher).
• Comprehensive knowledge of best practices, design patterns, and architectural principles essential for C++ library development.
• Proven, hands-on experience targeting multiple operating systems such as Windows, Linux, MacOS and iOS.
• Ability to independently plan and deliver solutions, including scoping and owning features.
• Ability to understand and respond to the needs of dependent clients and teams, including adapting C++ patterns to the idiomatic best practices of other languages such as C# and JS or TS.
• A self-critical approach to work quality and a drive to improve codebases and address technical debt.
• Practical experience integrating RESTful and or GraphQL APIs.
• Ability to design usable and maintainable API surfaces.
• Strong communication skills that support clear and effective collaboration across technical levels.
• Experience using and maintaining build systems for cross platform C++ projects and their dependencies.
• Familiarity with realtime networking.
• Experience using and maintaining CI and CD pipelines for complex multi platform build scenarios.
• A focus on delivering stability through code that is inherently testable.

Even better if you also have

• Experience with embedded scripting runtimes.
• Experience with web technologies (Emscripten/WASM).
• Experience with Unreal Engine and/or Unity.

Our Interview Process

We believe in a transparent and straightforward interview process. Here's what you can expect when applying for this role:

Application Review

Our team will carefully review your application to assess alignment with the role.

Recruiter Screening Call (30 minutes)

A general conversation to learn more about you, share insights about the company and role, and cover the basics.

Craft Interview (1.5 hours)

A deep dive into your skills and expertise, including a collaborative code review exercise that explores your technical capabilities, domain knowledge, and approach to working through problems as a team.

Ways of Working Interview (1 hour)

A conversation focused on your working practices, goals, and alignment with our values.

Offer

If successful, we’ll extend an offer and guide you through the next steps.

We aim to make the process engaging, efficient, and reflective of our collaborative culture.

About us

Magnopus is an experience focused technology company founded by a team of Oscar-winning artists, designers, and engineers from games, films, and other unusual places. We’re passionate about creating rich experiences that unite the physical and digital worlds.

Because we’re building the future, we endeavour to create a diverse, creative workplace where people from many perspectives collaborate across disciplines to create amazing things together. We invest in our employee's progression with ongoing education and mentorship opportunities, and support their happiness and productivity through generous health care, time off, and other benefits.

We try to foster a safe environment where we can take risks, and learn from our failures. While we value individual talents, we favour collaboration more. We believe that the leadership of the company works for the employees, not the other way around. We feel strongly that our employees guide who we are as a company and the work we create, so we look for characteristics of curiosity, empathy, respect, honesty, and courage in every candidate.

Please be aware that, if you are selected for a position, you will be required to provide proof of your right to work in the UK in accordance with the Immigration, Asylum and Nationality Act 2006. This may involve providing original documents such as a passport or residence permit. Failure to provide the necessary documentation may affect your employment eligibility.