Unreal Engine C++ Developer (fixed term, 2-3 months project)

Stream is hiring an experienced Unreal Engine C++ Developer for a short-term contract (2-3 months) to help elevate our open-source Unreal SDK to the next level of quality and usability. This is a hands-on role with high visibility and impact. We’re looking for a developer based in the Netherlands, North Macedonia, or remotely within the EU.

What You’ll Be Working On

You’ll contribute directly to the Stream Chat Unreal SDK, which is fully open source. Your core responsibility will be to identify areas for improvement across the SDK—including architecture, performance, and developer experience—and implement enhancements that align with best-in-class standards.

Why This Role Is Unique

Stream builds SDKs used by thousands of developers, including some of the largest apps in the world. You’re not just writing code—you’re creating tools for other engineers. This demands exceptional quality, thoughtful design, and rock-solid stability. You’ll work in a deeply technical environment where precision and performance matter.

What You Bring

• 5+ years of professional experience with C++ and Unreal Engine
• A strong track record of building performant, reliable applications
• Experience writing pragmatic, automated tests to ensure ongoing quality
• A sharp eye for visual fidelity and user interface quality
• Bonus: Prior experience developing SDKs or maintaining open-source projects

Our tech stack

At Stream, we use a wide collection of technologies to offer highly optimized and available features to our customers. Here is a shortlist of the technology that we currently use:

• Go, gRPC, RocksDB, Python
• Postgresql, RabbitMQ
• AWS, Puppet, CloudFormation
• Grafana, Graphite, ELK, Jaeger
• Redis, Memcached

Why Stream?

• History of success. From Amsterdam to Boulder and Techstars in-between, Stream has raised over $58.25M to build the best Chat Messaging & Activity Feed infrastructure available, with best-in-class support.
• Freedom and endless growth opportunities. As a rapidly growing startup (since 2020 we have gone from 30 to 150 employees), Stream gives you unique personal and professional growth opportunities. The opportunity of true ownership and accountability has a massive impact on your career. These are the things you can rarely experience in huge corporations.
• Be on the front line of progress and innovation. While working with cutting-edge technology, we are passionate about tackling difficult tech problems at scale and creating reusable components for them, empowering engineering teams to ship apps faster, more securely, and with a better user experience.
• They believe in us: Stream is backed by leading VC companies (Felicis Ventures, GGV Capital, 01.Advisors, Techstars, Arthur Ventures), including backers like Dick Costolo (01 Advisors, ex-CEO of Twitter), Olivier Pomel (CEO of Datadog), Tom Preston-Werner (Co-Founder of GitHub), Nicolas Dessaigne (Co-Founder of Algolia), Johnny Boufarhat (Founder and CEO of Hopin).

Our culture

Stream has a casual social culture, our team is diverse and we all have different backgrounds. Now, Stream is a team of over 140+ peers from over 35 countries across the globe.

We value transparency, aim for excellence, and support each other on our way to new victories.

Our team consists of the strongest talents all over the world, which makes Stream a great place to learn and improve your skills.

When it comes to software engineering jobs, our culture is oriented towards ownership and quality: our goal is to deliver stable software.

If you are interested in becoming a part of what we do, apply for this vacancy now!

Hybrid office policy: applicants based (or relocating to) one of our office locations are expected to work according to the applicable local office attendance policy.

Equal opportunity employer statement: Stream provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Note for external recruiters: We currently have this role covered and do not accept unsolicited agency resumes. We are not responsible for any fees related to unsolicited resumes.