Senior Software Engineer, Notifications

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. 

At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. 

A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.

Why Notifications
Join the team building Roblox’s Core Pipeline for notifications—systems that deliver fast, reliable, and relevant messages at massive scale. You’ll lead backend functionality across push, in‑app (stream, toast), email, and SMS, and evolve the platform with scheduling and ranking so the right users get the right notifications at the right time.

You will own backend, relevance, and client integration that power hundreds of millions of notifications triggered by users, creators, and the platform. Partner across product, design, data, and engineering to define the roadmap, drive execution, and uphold a high bar for user trust and platform reliability.

You Will:

• Design and build backend services that deliver hundreds of millions of notifications reliably and efficiently across push, in‑app/in‑experience (stream, toast), email, and SMS.
• Own parts of the Core Pipeline (fanout, routing, policy, delivery) and evolve them for scale, observability, privacy, and developer experience.
• Implement scheduling, personalization, and ranking interfaces; partner with machine learning to integrate model‑driven relevance and anti‑spam controls.
• Define APIs and data contracts for internal teams and developers; add guardrails to prevent spam and protect user trust.
• Raise the engineering bar through code reviews, testing, documentation, and operational excellence (SLOs, monitoring, incident response).
• Collaborate with other Teams at Roblox such as Social, Avatar, Economy, Platform, and Data teams to unlock new use cases without compromising user experience.

You Have:

• 6+ years of software development experience, with a focus on high‑scale backend systems.
• 6+ years of experience with compiled language (C# or Java) and server‑side architecture/design (API design, concurrency, storage, queues).
• Distributed systems and asynchronous processing experience (e.g., Kafka, Amazon SNS/SQS).
• A track record of shipping technically complex projects end‑to‑end and collaborating cross‑functionally with product/design/data.
• Participation in system design reviews; strong code quality and reliability practices.
• Bonus: Experience with notification platforms, experimentation/A/B testing, machine learning for personalization/ranking, client‑side development (Android/iOS), big data pipelines and analytics.

You Are:

• Resourceful: You're able to navigate tough constraints to find the best solution. You stay laser-focused on the end goal and are adaptable, creative, and strategic to achieve it. 
• Solution Oriented: You start with the problem to be solved, and stay laser-focused on getting it solved. You can tackle anything that comes your way, whether it’s a technical problem, a business problem, or a people problem.
• Team Oriented: You are constantly looking at how to make the team stronger – both the team you directly manage, and the team of peers you collaborate with.
• Empathetic: You can put yourself in the shoes of anyone – a junior engineer, an executive, an adversarial attacker, a new user – and understand their needs. 

For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits as described on this page.

Annual Salary Range$192,890—$238,520 USD

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).

Roblox 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. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.