At Roblox, we strive to connect a billion people with optimism and civility, and the Safety organization’s mission is to become the leader in civil immersive online communities. We systematically detect, remove, and prevent problematic accounts, content and behavior, and we make Roblox accounts secure and free from compromise. We cover a broad area of the tech spectrum, including machine learning, classifiers for 3D models, experimentation, automation, detection workflows, and AI-powered text filters. Aligned and partnering with product teams, we use this tool-belt to discover new opportunities, influence and shape the product roadmap and prioritization, build safety products, and measure the impact on our community of users and developers. In doing so, we keep Roblox safe, civil, and inclusive, and we foster positive relationships between people around the world.

WHY Safety Data Infrastructure

To pro-actively find bad actors and protect good users, Roblox needs to ingest enormous amounts of data and make it usable both to our automated detection systems and for human moderators and customer support agents doing investigations. The Safety Data Infrastructure team is addressing these needs within Safety. We are building a high availability real time multi-model datastore consisting of screenshots, chats, voice communication and more. This will allow various safety systems to re-use all manner of data collected to spot bad actors and policy violations.

As a member of the Account Infra Team, you will have a rare opportunity to sit at the convergence of ML infrastructure, data engineering, and high scalability engineering all while getting to learn Rust.

You Will:

• Assume ownership of the complete lifecycle for full-stack features within Safety Data Infra  ranging from technical specification, implementation, rollout, monitoring, and iteration, ensuring alignment with the designated pod roadmap.
• Engage in close collaboration with partner teams in Content Safety, Safety Experience, Accounts, ML Foundations and Roblox database platform teams.
• Define the architectural direction for scaling Safety Data Infra.
• Take complete responsibility for projects throughout their entire lifecycle.
• Drive cross-functional engagement and lead technical initiatives to ensure the widespread adoption and success of our core safety applications.
• Report directly to the Manager of Account Security and Infra.

You Have:

• 4+ years of experience in software development.
• Distributed Systems Architecture: Proven ability to design and implement robust, high-throughput microservices (handling thousands of requests per second) while maintaining a strict focus on system safety and security. 
• Backend Proficiency: Experience with non-relational datastores and large scale systems.
• Safety-Driven Mindset: A strong commitment to designing, implementing, and maintaining systems that prioritize user safety, data integrity, and compliance with safety policies.
• Equivalent experience or a BS in Computer Science, Applied Math, Physics, Engineering, Statistics, or another technical field.
• Curious to learn new technologies and systematically grow your skills.

You Are:

• Experienced (4+ years): You have extensive experience as a full-stack engineer, proficient in back-end development, working on complex, production-grade systems end-to-end.
• Analytical & Data-Driven: You possess a strong ability to instrument, collect, and analyze user interaction data (e.g., A/B testing, usage metrics) to inform design decisions and continuously maximize user impact and product performance.
• Comfort working with agents. Roblox as a whole is also currently revamping our development flows to incorporate AI wherever possible.
• Versatile & Adaptable: We write and review code primarily in Rust with some adjacent systems in Go, C#, C++ and Python.
• Team-Player & Technical Leader: You are a collaborative team member who actively mentors peers, drives technical excellence, and takes ownership of leading and delivering key features and projects across team boundaries.
• AI native: You are eager to define and build AI-centric solutions, incorporating modern machine learning and agentic AI capabilities directly into the core user experience and system architecture.

Why Safety?
At Roblox, we strive to connect a billion people with optimism and civility, and the Safety organization’s mission is to become the leader in civil immersive online communities. We systematically and proactively work to detect, remove, and prevent problematic content and behavior. We seek to influence and shape the product roadmap and prioritization, build safety products, and measure our impact on the community of users and developers. In doing so, we help keep Roblox safe, civil, and inclusive, fostering positive relationships between people around the world.

Why Text Safety?
As a Senior Engineer you will play a key role in advancing large-scale AI systems that strengthen text safety and integrity. You’ll leverage cutting-edge ML models to build intelligent tools to curate high-quality training and evaluation data to train machine learning models. These systems will continuously refine and enhance model performance, enabling proactive detection and mitigation of safety risks across the platform in real time.

In this role, you’ll work closely with cross-functional teams of engineers, product managers, policy experts, and safety specialists to turn complex safety challenges into scalable, impactful solutions. You’ll establish best practices and technical standards that define the next generation of safety AI, ensuring the platform remains secure, inclusive, and resilient. Your contributions will directly empower robust, AI-driven moderation and detection systems that foster a safe and positive experience for all users.

You Will:

• Design, build, and own critical components of the AI based text safety components, with a focus on usability, reliability, scalability, and performance.
• Implement robust AI service to ensure text quality on all Roblox properties (Avatar, Game Description etc.).
• Advance our AI systems infrastructure by developing strong frameworks and APIs to support the text filtering needs for hundreds of clients in Roblox.
• Partner with cross-functional teams of engineers, product managers, policy experts, and safety specialists to to deliver scalable data and AI solutions to power next-generation safety systems.
• Develop text safety quality metrics and eval tooling to support the continued quality iteration over time.
• Stay current with emerging technologies and push forward innovation in AI space to enhance user and platform safety.
  
  

You Have:

• 5+ years of experience designing, building, and deploying large-scale machine learning systems in production environments.
• A graduate degree or equivalent experience in Computer Science, Engineering, or a related technical field.
• Strong communication skills and a collaborative, solution-oriented approach to problem solving.
• Hands-on experience with fine-tuning VLMs, LLMs, or large multimodal models to improve model quality, safety, and performance is a plus.
  
  

You Are:

• Data & System Oriented: You understand that robust data and systems are the foundation of any production applications, and you design infrastructure for scale, correctness, and reliability.
• Collaborative: You thrive in cross-functional teams, partnering effectively with Product and Engineering to solve complex challenges.
• Curious & Creative: You enjoy tackling hard problems, exploring new technologies, and driving continuous improvements in both systems and workflows.
• Impact Driven: You focus on outcomes - prioritizing product impact, reliability, and measurable success over code volume or complexity.

WHY SAFETY?
At Roblox, we strive to connect a billion people with optimism and civility, and the Safety organization’s mission is to become the leader in civil immersive online communities. We systematically detect, remove, and prevent problematic content and behavior, and we make Roblox accounts secure and free from compromise. We cover a broad area of the tech spctrum, including machine learning, classifiers for 3D models, experimentation, automation, detection workflows, and AI-powered text filters. Aligned and partnering with product teams, we use this toolbelt to discover new opportunities, influence and shape the product roadmap and prioritization, build safety products, and measure the impact on our community of users and developers. In doing so, we keep Roblox safe, civil, and inclusive, and we foster positive relationships between people around the world.

WHY CUSTOMER CARE?
We are looking for a Senior Software Engineer to join our Customer Care team within the Trust & Safety organization. In this role, you will revolutionize Roblox user’s customer support experience by developing next-generation, AI-powered solutions at scale. You will collaborate closely with customer support agents and the Roblox development community to design and implement innovative technical solutions to complex challenges.

You Will:

• Design and build customer facing and internal applications to provide customer support at scale, including a  state-of-the-art, LLM-backed chatbot.
• Stay familiar with recent trends in LLMs and develop innovative solutions and features for the chatbot, while optimizing for  cost.
• Influence the team's roadmap and long-term strategy in collaboration with product, operations, and other cross functional stakeholders to develop the next generation of customer care experience. 
• Provide technical leadership,  influencing decisions within and beyond the pod
• Mentor junior engineers to strengthen their technical skills and support their professional growth.
  
  

You Have:

• A Bachelor's degree in Computer Science, or a related field, with a minimum of 8 years of hands-on experience. A graduate degree is highly preferred.
• Proven experience developing innovative solutions using LLMs is required.
• Extensive experience with modern programming languages such as C#, Java, Python, or similar, with a strong emphasis on writing efficient, maintainable, and scalable code.
• In-depth knowledge of contemporary software design patterns, including microservice architecture, RESTful APIs, and Remote Procedure Calls (RPC), with a proven track record of building robust and scalable systems.
• Demonstrated ability to develop end-to-end solutions for complex technical challenges, collaborating across multiple teams from conception through to launch.
• Prior experience in machine learning is helpful.
  
  

You Are:

• A Technical Leader: You have initiated and facilitated challenging technical solutions. Your technical expertise influences product direction. You foster a culture of technical excellence.
• Versatile: You're a jack of all trades and you are comfortable with several languages and technologies already; you are adaptable in any situation. You are resourceful, and take a creative and strategic approach to solving hard problems.
• Analytical: Excited to investigate large, ambiguous problems, and quantify the problems and the solutions.
• User Oriented: You always start with the needs of the user, whether they are Roblox users or internal engineers before architecting a solution.
• Team Oriented: You lift up your peers and find ways to make the team stronger.

WHY SAFETY?

At Roblox, we strive to connect a billion people with optimism and civility, and the Safety organization’s mission is to become the leader in civil immersive online communities. We systematically detect, remove, and prevent problematic accounts, content and behavior, and we make Roblox accounts secure and free from compromise. We cover a broad area of the tech spectrum, including machine learning, classifiers for 3D models, experimentation, automation, detection workflows, and AI-powered text filters. Aligned and partnering with product teams, we use this toolbelt to discover new opportunities, influence and shape the product roadmap and prioritization, build safety products, and measure the impact on our community of users and developers. In doing so, we keep Roblox safe, civil, and inclusive, and we foster positive relationships between people around the world.

WHY Safety Applications?

As we scale, the complexity and volume of safety threats have grown exponentially, making Trust and Safety the single most critical engineering problem we face. The platform’s ability to achieve its mission hinges entirely on the foundational tooling we build.

We are not just responding to incidents; We are building the scalable operating system for all of Roblox’s Trust & Safety strategy. As a Senior Full-stack Engineer on the Safety Application pod within the Safety Experience, you will be instrumental in developing our in-house safety applications. This role emphasizes building intuitive, scalable, and AI-agentic-powered tooling for daily Roblox safety acts. If you are passionate about solving complex, high-impact problems in an adversarial landscape, this is the team for you. You will report to the Engineering Manager of the Safety Application Team.

You Will:

• Assume ownership of the complete lifecycle for full-stack features within Safety labeling and Investigative tooling, encompassing technical specification, implementation, rollout, monitoring, and iteration, ensuring alignment with the designated pod roadmap.
• Engage in close collaboration with Operations, Product Managers, and partner safety pods to translate ambiguous workflows and pain points into clear requirements and pragmatic technical designs, thoughtfully balancing immediate needs with long-term platformization objectives.
• Define the architectural direction for the next generation of safety applications, integrating Artificial Intelligence methodologies.
• Contribute to and maintain shared moderation primitives (e.g., Compliance, Quality Assurance, Traffic Routing, workforce management, and agentic AI labeling) to facilitate the streamlined onboarding of new safety surfaces by integrator teams.
• Take complete responsibility for projects throughout their entire lifecycle.
• Drive cross-functional engagement and lead technical initiatives to ensure the widespread adoption and success of our core safety applications.
• Report directly to the Engineering Manager of Safety Applications.

You Have:

• 5+ years of experience in software development.
• Distributed Systems Architecture: Proven ability to design and implement robust, high-throughput microservices (handling thousands of requests per second) while maintaining a strict focus on system safety and security. 
• Full-Stack Proficiency: Experience with both front-end (e.g., React, Vue, Angular) and back-end technologies (e.g.,= Python, Java, Go) to deliver end-to-end features.
• Safety-Driven Mindset: A strong commitment to designing, implementing, and maintaining systems that prioritize user safety, data integrity, and compliance with safety policies.
• Equivalent experience or a BS in Computer Science, Applied Math, Physics, Engineering, Statistics, or another technical field.
• Curious to learn new technologies and systematically grow your skills.

You Are:

• Experienced (5+ years): You have extensive experience as a full-stack engineer, proficient in both front-end and back-end development, working on complex, production-grade systems end-to-end.
• Analytical & Data-Driven: You possess a strong ability to instrument, collect, and analyze user interaction data (e.g., A/B testing, usage metrics) to inform design decisions and continuously maximize user impact and product performance.
• Versatile & Adaptable: You are proficient across multiple programming languages, frameworks, and technologies (e.g., modern React, #Golang, Python,  relational/NoSQL databases, cloud platforms) and can quickly shift focus and master new skills to meet project demands.
• Team-Player & Technical Leader: You are a collaborative team member who actively mentors peers, drives technical excellence, and takes ownership of leading and delivering key features and projects across team boundaries.
• AI native: You are eager to define and build AI-centric solutions, incorporating modern machine learning and agentic AI capabilities directly into the core user experience and system architecture.

WHY SAFETY?

At Roblox, we strive to connect a billion people with optimism and civility, and the Safety organization’s mission is to become the leader in civil immersive online communities. We systematically detect, remove, and prevent problematic accounts, content and behavior, and we make Roblox accounts secure and free from compromise. We cover a broad area of the tech spectrum, including machine learning, classifiers for 3D models, experimentation, automation, detection workflows, and AI-powered text filters. Aligned and partnering with product teams, we use this toolbelt to discover new opportunities, influence and shape the product roadmap and prioritization, build safety products, and measure the impact on our community of users and developers. In doing so, we keep Roblox safe, civil, and inclusive, and we foster positive relationships between people around the world.

WHY Asset Safety ?

Safety and Civility is Roblox's #1 priority and our mission is to protect our community. As a Principal Software Engineer on Asset Safety, you'll ensure that billions of daily user-generated content across Roblox is safe and civil - across images, avatars, 3D content, video, and more. 

The ideal candidate is creative, flexible across the stack, and proactive in advancing our mission of keeping users safe. Since engineering drives most of the team’s roadmap, we value initiative and problem-solving.

You Will:

• Build and scale distributed systems that power asset moderation at Roblox, ensuring billions of daily user-generated assets are safe and civil.
• Operate as a high-agency problem solver: whether the solution requires deep-diving into backend services, scaling ML pipelines, or diving into data, you do what’s needed to ship impactful safety products
• Develop innovative detection approaches in a rapidly evolving, adversarial landscape, using a data-driven lens to identify new opportunities.
• Lead through technical excellence: you define the team’s direction by being the first to dive into the hardest problems, earning influence through your execution and mentorship.
• Partner cross-functionally with Moderation Operations, Product Management, and Data Science to deliver end-to-end products that protect our community

You Have:

• 8+ years of experience in software development
• Distributed systems expertise: Experience building and shipping high-scale distributed systems to production
• A “whatever-it-takes” technical mindset: the ability to jump into new domains to solve high-stakes problems
• A proven track record of driving solutions to technical challenges that span multiple teams and require deep architectural expertise
• Equivalent experience or a BS in Computer Science, Applied Math, Physics, Engineering, Statistics, or another technical field.

You Are:

• A Technical Leader: You have initiated and facilitated challenging technical solutions. Your technical expertise influences product direction, and you foster a culture of technical excellence.
• Versatile: You're a jack of all trades and you are comfortable with several languages and technologies already; you are adaptable in any situation. You are resourceful, and take a creative and strategic approach to solving hard problems.
• User Oriented: You always start with the needs of the user, whether they are Roblox users or internal engineers before architecting a solution.
• Team Oriented: You lift up your peers and find ways to make the team stronger.

As a Senior Risk Data Analyst in our Payments organization, you will play a critical role in defending Roblox from various types of payment fraud across the platform. This includes purchase fraud, developer earnings fraud, and virtual economy-related risk and abuse. Roblox is a high-growth environment, and you will be essential in developing, implementing, and optimizing risk and anti-fraud solutions for our diverse global payment channels. Your work will be critical in safeguarding revenue, protecting our community, and ensuring the financial integrity of our platform, which handles millions of transactions daily. You will work in a data-driven environment, proactively analyzing trends and patterns to detect and prevent complex financial fraudulent activity.

You Will:

• Monitor transaction activity and implement detection strategies to prevent fraud.
• Collaborate with cross-functional teams, including engineering, product, and data science, to develop and improve fraud prevention measures.
• Implement, monitor, and tune detection strategies and rules in production to prevent and mitigate payment fraud, minimizing false positives and maximizing loss prevention.
• Collaborate closely with cross-functional teams—including Engineering, Product, Data Science, and Finance—to define, scope, and implement new fraud prevention tools and systemic improvements.
• Conduct deep-dive investigations into emerging risk vectors, documenting findings and preparing regular, actionable reports on financial risk trends, loss rates, and mitigation effectiveness for leadership.
• Analyze and plot data to identify and investigate potential fraud and abuse patterns.
• Contribute to the continuous improvement of our risk management framework, policies, and procedures, ensuring ongoing compliance and operational efficiency across the payments ecosystem.
• Define technical and data requirements to enhance risk-monitoring infrastructure, alerting, and operational tooling used by the wider risk and payments teams.

You Have:

• 5+ years of professional experience in an analytical role, with a focus on fraud prevention and risk analysis in a high-volume transactional environment (e.g. e-commerce, fintech, or gaming).
• Proficiency with data analysis tools and techniques, including advanced SQL and Python for data exploration, data visualization, and statistical analysis.
• Direct experience analyzing and addressing different types of payment risk, such as card/fiat fraud, account takeover (ATO), chargeback analysis, and/or developer payout/earning fraud.
• Strong analytical and problem-solving skills, with the ability to interpret complex data and identify trends.
• Familiarity with risk prevention concepts, such as those in anti-fraud, anti-abuse, or trust and safety.
• Excellent communication and stakeholder management skills, with the ability to collaborate effectively with cross-functional teams.
• Degree in a quantitative field such as Data Science, Finance, Economics, Statistics, or a related field.