Staff Software Engineer - Anti-Abuse & Security

Join Replit, the innovative platform revolutionizing software development by empowering individuals to craft applications through natural language. With a vibrant community of millions, including over 500,000 business users, we are breaking down traditional barriers to application creation.At Replit, we are building the most user-friendly AI coding assistant in the industry. Replit Agent is designed to help anyone transform their ideas into reality—whether it’s a personal app, a groundbreaking startup, or a productivity tool for work, our platform makes it achievable. Our comprehensive suite of tools enhances the app creation process, from integrations and storage to hosting and analytics, ensuring a smooth transition from development to production and beyond.About the Role:As a Senior Staff Software Engineer, you will play a pivotal role in advancing Replit Agent as a technical leader within the Replit Cloud organization. Reporting directly to the Vice President of Engineering, you will collaborate with the Replit Cloud team to develop our proprietary cloud infrastructure, enabling users to build, scale, and thrive entirely on Replit. You will oversee critical components such as databases, application storage, app publishing, hosting, and custom domains, which are essential to our competitive advantage.Your Responsibilities:Lead significant projects, taking new products from concept to launch, or enhancing existing offerings to attract and retain users.Collaborate closely with designers and product managers to iterate swiftly on Replit Cloud, driving continuous product enhancement.Identify and resolve critical technical and quality challenges that hinder our progress, implementing effective solutions.Mentor and nurture junior engineers, fostering their growth and contributing to team development.Deliver products and build infrastructure as a full-stack developer using technologies such as TypeScript, React, CSS, Postgres, Go, and Terraform.Potential Contributions:Utilize our distinctive cloud infrastructure to create exceptional product experiences, enabling non-technical users to overcome challenges.Implement AI agents to proactively enhance app performance, focusing on latency, reliability, SEO, and more.Participate in engineering leadership, guiding teams towards impactful projects and supporting cross-company initiatives.

Replit is a groundbreaking platform that empowers individuals to create software applications using natural language, breaking down traditional barriers in software development. With a global user base of millions, including over 500,000 businesses, we are dedicated to democratizing the process of building applications.About the Role:Join us as a Software Engineer within the Replit Cloud team, where you will play a pivotal role in the development of Replit Agent. This team is responsible for constructing our proprietary cloud infrastructure, enabling users to build, scale, and thrive using Replit. Your work will encompass managing databases, application storage, publishing, hosting, and providing seamless integrations that define our competitive edge.Your Responsibilities:Collaborate closely with designers and product managers to iterate rapidly on the Replit Cloud platform, enhancing its features and user experience.Lead full-stack feature development from inception to deployment, taking ownership of critical product initiatives.Engage in architectural decision-making to influence the future direction of our product.Deliver high-quality products and build robust infrastructure as a versatile full-stack engineer utilizing TypeScript, React, CSS, Postgres, Go, and Terraform.Potential Projects:Utilize our unique cloud infrastructure to create distinctive product experiences that assist users in overcoming challenges to their success.Employ AI agents to enhance app performance by optimizing latency, reliability, SEO, and other critical aspects.Take part in engineering leadership, guiding teams toward impactful work and supporting cross-company initiatives.Required Skills and Experience:Bachelor’s degree in Computer Science or a related field, or equivalent practical experience in engineering.Proficient in our technology stack: TypeScript, React, and Go.Preferred QualificationsExperience in developing user-facing platform-as-a-service products.Familiarity with AI and agentic systems.Previous experience with a high-growth startup environment.

At Replit, we empower creativity through our innovative software creation platform, allowing users to develop applications effortlessly using natural language. With a thriving community of millions and over 500,000 businesses leveraging our tools, we're on a mission to democratize software development by eliminating traditional barriers.Role Overview:We are seeking a Senior Staff Software Engineer focused on monetization systems to spearhead our initiatives in this critical area. This role is pivotal in ensuring that our monetization strategies not only drive business success but also enhance user satisfaction. Your contributions will shape essential user journeys, as we believe that a seamless billing experience is vital to our users' enjoyment and success.Your Responsibilities:Design and implement robust monetization systems that align with Replit’s objectives.Craft intuitive payment experiences that cater to both product-led and sales-led strategies.Develop new APIs and abstractions to enable fellow engineers to effectively monetize their products.Refine pricing strategies and packaging tactics, including coupon codes and referral systems, to maximize revenue potential.Establish monitoring and feedback systems to proactively identify and resolve issues while optimizing performance metrics.Qualifications:Minimum of 6 years of engineering experience with a strong emphasis on backend development.Proven expertise in one or more areas such as:Subscription platformsUsage-based billing systemsSaaS taxationPayment processing systemsTokenization solutionsSelf-motivated and able to thrive in dynamic, ambiguous environments.Exceptional problem-solving skills with a knack for debugging complex billing challenges.Experience in building user-friendly billing interfaces that simplify intricate pricing models.Technologies We Utilize:Proficient in Python, TypeScript, React, Postgres, GraphQL, and Node.js.

Role Overview Replit is looking for a Staff Software Engineer to join the Agent Platform team in Foster City, CA. This hybrid role requires in-office presence on Mondays, Wednesdays, and Fridays. The team builds features that help users create and collaborate on code with less friction. What You Will Do Design and develop new features for the Agent Platform Improve existing systems to support collaborative coding Work closely with other engineers to deliver reliable, scalable solutions Location Foster City, CA (Hybrid). In-office days are Monday, Wednesday, and Friday.

Join Replit as a Staff Software Engineer on our Enterprise Platform team. In this role, you will leverage your expertise to build robust and scalable software solutions that empower developers and businesses alike. Collaborate with cross-functional teams to shape the future of development platforms while working in a dynamic, creative environment.

Join Replit as a Partner Engineer, where you will play a crucial role in enhancing our partnerships with developers and organizations. You will collaborate with various teams to build and implement solutions that empower users and drive innovation. Your technical expertise will be essential in optimizing our platform for partners and ensuring seamless integration.

At Replit, we're revolutionizing software development by empowering individuals and businesses to create applications effortlessly through natural language. With a global user base of millions and over 500,000 business users, we are committed to breaking down traditional barriers in software creation.About the Role:Join our dynamic Infrastructure Engineering team, where you will play a pivotal role in ensuring the reliability, scalability, and performance of Replit's infrastructure that supports developers worldwide. As a Senior Infrastructure Engineer, you will be at the intersection of development and operations, focusing on automation and best practices that facilitate efficient scaling while ensuring high availability.We are on the lookout for passionate Senior Infrastructure Engineers who excel in building and maintaining resilient systems at scale. Your objective will be to proactively identify and analyze reliability issues within our infrastructure, designing and implementing innovative software and systems to achieve significant improvements. You will create robust monitoring solutions, automate operational processes, and enhance infrastructure reliability, all while mentoring and fostering a culture of reliability within the broader engineering team at Replit.Your Responsibilities:Automate and Innovate: Architect and enhance automation to minimize manual effort and operational burdens. Design and maintain CI/CD pipelines and infrastructure automation using tools like Terraform or Pulumi. Develop self-healing systems capable of automatically addressing common failure scenarios.Optimize Infrastructure Performance: Collaborate with core infrastructure and product teams to fine-tune and optimize our cloud deployments (Kubernetes, Docker, GCP). Identify and eliminate performance bottlenecks, implement capacity planning, and reduce latency across global regions.Enhance Developer Experience: Design and execute improvements to our build, test, and deployment systems to accelerate, secure, and enhance software delivery for all engineers.Foster Cross-Department Improvements: Work closely with service owners throughout Replit to identify challenges and collaborate on implementing enhancements in their specific services.Develop Shared Tools: Create and manage centralized tools and automation that streamline the engineering lifecycle, from local development to production monitoring.

At Replit, we are pioneering a transformative platform that empowers individuals to create software using natural language, making application development accessible to everyone. With millions of users globally, including over 500,000 businesses, we are breaking down the barriers to software creation and fostering innovation.About the Position:As a Senior Staff Software Engineer at Replit, you will collaborate closely with a talented team of product and platform engineers, designers, sales representatives, and product managers to develop features that enhance user collaboration and accelerate the journey from concept to software. You will play a pivotal role in shaping the experiences of our vast user base.Your Responsibilities:Lead significant engineering projects and guide new products from inception to launch.Analyze and resolve complex technical challenges that impede progress, devising effective solutions.Define the strategic technical roadmap and ensure successful execution of projects to achieve desired outcomes.Mentor and nurture junior engineers to bolster the growth of the engineering team.Develop and deploy new features and infrastructure utilizing technologies such as TypeScript, React, CSS, GraphQL, Node.js, and Postgres.Essential Skills and Experience:At least 7 years of experience in professional software development.Demonstrated experience in a technical leadership role with a strong cross-functional collaboration background.Proficient in building full-stack applications using TypeScript.Hands-on experience developing products directly for end-users.Preferred Qualifications:Passionate about the future of programming, with experience in IDEs, terminals, or common developer tools.Previous startup experience in a versatile engineering role.This is a full-time position based in our Foster City, CA office. The role requires in-office attendance on Mondays, Wednesdays, and Fridays.Benefits for Full-Time Employees: Competitive Salary & Equity 401(k) Program...

At Replit, we are revolutionizing the world of software development with our innovative platform that empowers individuals to create applications using natural language. With a thriving community of millions of users and over 500,000 businesses leveraging our technology, we are committed to breaking down traditional barriers and democratizing coding for everyone.About the PositionJoin our dedicated Anti-Abuse team as we protect Replit’s platform from exploitation and misuse. In this role, you will be at the forefront of defending against phishing attacks, preventing cryptomining on our free-tier infrastructure, and stopping LLM token farming. You will be tasked with developing advanced detection systems and automated responses that keep pace with ever-evolving threats. This position is unique in that you will tackle challenges that are often unprecedented, such as establishing safety measures for AI-generated code and implementing defenses against prompt injection attacks. If you are eager to gain hands-on experience applying AI in real-world security challenges, this is the ideal opportunity for you.Your ResponsibilitiesDesign and implement protective measures for AI-generated code and agent interactions to detect abuse scenarios.Develop AI-driven detection systems utilizing LLMs to identify malicious activities, classify threats, and automate responses.Create and maintain abuse detection systems for phishing, cryptomining, account takeovers, and financial fraud across millions of user actions daily.Design automated response mechanisms that enforce platform policies seamlessly.Oversee the entire abuse response lifecycle, including detection, investigation, enforcement, and appeal management in collaboration with Support and Legal teams.Analyze attack patterns using BigQuery and Hex to translate findings into new detection rules.Enhance and maintain internal detection tools (Slurper, Netwatch) that consistently monitor user activity.Integrate and fine-tune security scanners (SAST, SCA) within CI pipelines, ensuring adherence to stringent performance SLAs.Monitor abuse trends, assess detection effectiveness, and adapt defenses as attack patterns evolve.

Replit is redefining the landscape of software development with a groundbreaking platform that empowers individuals to create applications using natural language. With millions of users globally, including over 500,000 businesses, Replit is committed to democratizing software development by removing traditional hurdles.About the Role:We are on the lookout for skilled distributed systems engineers who are eager to design and implement innovative solutions for application deployment. Your primary objective will be to enhance the infrastructure capabilities of Replit, optimize performance across various global regions, and ensure an exceptional user experience through efficient solutions. If you possess a solid foundation in software development, a thorough understanding of cloud technologies, and a proven history of delivering high-quality code, we invite you to join our team.In This Role, You Will:Advance Replit's cloud infrastructure offerings: Launch new cloud products that empower the Replit Agent to create complex applications. Collaborate with cross-functional teams to design and execute features that provide developers with a complete suite of tools for efficient application building and deployment.Boost reliability and scalability: Identify performance bottlenecks, optimize critical paths, and implement comprehensive monitoring and alerting systems. Work closely with the SRE team to guarantee high availability and minimal downtime, enabling our clients to effortlessly scale their applications to accommodate a growing user base.Enhance cloud infrastructure utilization: Assess infrastructure costs and pinpoint optimization opportunities. Develop strategies to minimize cloud expenses while maintaining performance and reliability, utilizing techniques such as resource provisioning, auto-scaling, cost-aware scheduling, and data lifecycle management. Your contributions will play a vital role in improving the financial efficiency of our cloud services.Required Skills and Experience:Expertise in distributed systems: Proven experience with platform-as-a-service, distributed storage, or information retrieval systems. A strong background in designing scalable architectures and optimizing systems for latency and cost.Innovative problem-solving: A pragmatic approach to complex challenges with the ability to devise effective solutions. You embrace radical thinking while delivering results incrementally.Self-motivated and autonomous: Capable of working independently, establishing priorities, and driving projects to completion.

Join Replit, a revolutionary software creation platform that empowers individuals and businesses to develop applications using natural language. With a vibrant community of millions and over 500,000 business users globally, we are breaking down barriers to software development and making it accessible to all.About the RoleAs a key member of our Enterprise Platform team, you will play a critical role in establishing the foundational infrastructure that enables major organizations to utilize Replit within their specific security and compliance frameworks. In this position, you’ll be responsible for designing and implementing the necessary deployment flexibilities, networking capabilities, authorization systems, and data management controls that enterprises demand, from single-tenant architectures to custom policy enforcement and customer-managed encryption.You will collaborate at the intersection of cloud infrastructure and enterprise needs, working closely with our Platform Engineering, Security, and Sales teams to deliver capabilities that facilitate adoption among even the most demanding organizations.Your ResponsibilitiesDesign Enterprise Deployment Infrastructure: Craft and implement single-tenant and dedicated deployment solutions, ensuring customers can operate Replit with the necessary isolation to meet their security requirements.Develop Private Networking Solutions: Construct VPC peering, private connectivity, and static IP configurations that seamlessly integrate Replit into existing enterprise network architectures.Establish Authorization Services: Create the authorization frameworks that enforce customized enterprise policies, allowing for detailed access controls, tailored permission structures, and policy enforcement that aligns with clients' identity and governance systems.Implement Data Protection Features: Develop solutions for bring-your-own-key (BYOK) encryption, customer-managed keys, and data residency controls, empowering enterprises with control over their sensitive information.Automate Infrastructure Deployment: Write Terraform modules and automation scripts to facilitate reliable and repeatable enterprise deployments across various regions and configurations.Troubleshoot and Strengthen Systems: Engage deeply with complex infrastructure challenges spanning networking, authorization, Kubernetes, and cloud services to enhance the robustness and diagnosability of our enterprise platform.Collaborate with Go-to-Market Teams: Partner with Sales and Customer Success to gain insights into enterprise infrastructure needs and ensure alignment in delivering comprehensive solutions.

Join Replit, the pioneering software creation platform that empowers individuals to develop applications effortlessly using natural language. With a global community of millions and over 500,000 business users, Replit is revolutionizing software development by eliminating traditional barriers to app creation.About ReplitAt Replit, we are on a mission to create the world's most accessible AI coding agent. The Replit Agent allows anyone to turn their ideas into reality, whether it's a personal app, a groundbreaking startup idea, or a productivity tool for work. We take pride in being at the forefront of secure vibe coding, ensuring that our users can build applications securely while managing risks effectively.About the RoleAs a Senior Software Engineer on our Agent Platform team, you will develop robust tools that empower product engineers to iterate quickly on the Agent experience and enhance the core Agent functionality itself. You will serve as a vital link between the AI team, focused on core Agent logic, and the UX team, dedicated to crafting engaging Agent experiences. This role combines systems engineering, developer experience, and product engineering, addressing complex challenges from browser-based interfaces to high-performance backends and Linux systems engineering. We seek engineers who understand the product experience and can support it with efficient systems. You’ll have the chance to advance your skills across our infrastructure and product while leading impactful initiatives. We value diverse backgrounds and encourage all candidates to apply.Your ResponsibilitiesDevelop high-throughput backend applications and services, such as real-time chat functionality between users and the agent.Design a collaborative “Multiplayer Computer” that allows humans and AI agents to work together seamlessly on shared shells, filesystems, and states in real-time.Create infrastructure (both frontend and backend) that enables product engineers to deliver exceptional user experiences rapidly.Build reliable, well-structured interfaces between the Agent and both internal and external agentic systems (MCP).

At Replit, we are revolutionizing software development by empowering individuals to create applications effortlessly through natural language. With a global community of millions and over 500,000 businesses leveraging our platform, we are breaking down traditional barriers to application creation.About the Position:We are looking for a talented Senior Infrastructure Engineer to join our Infrastructure Engineering team. Your role will be pivotal in ensuring the reliability, scalability, and optimal performance of our infrastructure, which serves millions of developers around the globe. You will act as a crucial link between development and operations, driving automation and implementing industry best practices that allow our platform to scale effectively while ensuring high availability.We want passionate engineers who thrive on building and maintaining resilient systems at scale. Your mission will involve proactively identifying and analyzing reliability issues across our technology stack, designing, and implementing innovative software and systems solutions. You will develop robust monitoring frameworks, automate operational processes, and relentlessly enhance the reliability of our infrastructure.

At Replit, we are at the forefront of transforming software development by empowering users to create applications using natural language. Our platform has millions of users globally, including over 500,000 businesses, as we strive to eliminate obstacles in application creation. As a Senior Staff Site Reliability Engineer, you will play a pivotal role in our Site Reliability Engineering team, ensuring the reliability, scalability, and performance of Replit's infrastructure that supports developers around the world. You will act as a vital link between development and operations, applying your expertise in automation and best practices to help our platform scale efficiently while ensuring high availability. We are looking for passionate individuals who are committed to building and maintaining resilient systems. Your mission will be to proactively identify and analyze reliability issues across our tech stack and design innovative software and systems for substantial improvements. You will create robust observability solutions, drive incident responses, automate operational tasks, and enhance our infrastructure's reliability while mentoring and guiding the engineering team to embrace reliability as a core value.

Replit is a pioneering software creation platform that empowers individuals to build applications effortlessly using natural language. With millions of users globally and over 500,000 business clients, Replit is revolutionizing software development by dismantling traditional barriers to application creation.About the RoleWe are on the lookout for a skilled, analytical Growth Engineer to help propel our product's scaling efforts and elevate essential user metrics across acquisition, activation, retention, and monetization. Growth Engineering is a unique fusion of engineering, product management, and marketing—utilizing code, experimentation, and analytical insights to uncover opportunities that yield measurable results.What You’ll DoExperimentation & OptimizationDesign, implement, and analyze rapid A/B and multivariate experiments to validate hypotheses and enhance critical KPIs.Identify obstacles within user funnels and devise technical solutions to boost conversion rates throughout the user journey.Growth Feature DevelopmentCreate growth-driven product features such as onboarding experiences, referral systems, and automated engagement processes.Develop scalable code and infrastructure that underpins growth initiatives and experimentation frameworks.Data-Driven InsightsCollaborate with data teams to implement tracking, build insightful dashboards, and extract actionable insights from user behavior data.Utilize SQL and various analytics tools to conduct in-depth analyses of cohorts, engagement metrics, and experimental outcomes.Cross-Functional TeamworkWork closely with product managers, designers, marketers, and data scientists to align growth objectives and execution strategies.Translate business objectives into technical specifications and implement practical solutions that foster sustainable growth.Continuous Learning & InnovationStay informed about industry advancements and growth-related technologies, proposing new strategies to catalyze growth.Automate repetitive tasks and develop internal tools to facilitate faster experimentation.

Replit is a pioneering platform that empowers individuals to effortlessly create software applications through natural language. With millions of users globally and over 500,000 business clients, Replit is revolutionizing the software development landscape by eliminating conventional obstacles to application design.About the RoleWe are on the lookout for a talented Product Engineer to become an integral part of our newly formed Enterprise team. Our consumer platform has showcased Replit’s unique capabilities, and we are now witnessing exciting opportunities for innovation and expansion in the B2B sector. This area is crucial for our growth this year and in the future.Join us on our mission to develop and enhance features that boost productivity for teams and organizations of all sizes using Replit. This is a unique chance to make a significant impact and help shape our culture and processes from the ground up. You will collaborate closely with cross-functional teams, including product managers, designers, and AI engineers, to create solutions that empower our customers to build, deploy, and share their applications seamlessly. This role demands both technical proficiency and a keen understanding of user needs to deliver impactful features.Key Responsibilities:Design, develop, and maintain features across the full stack that cater to enterprise clients, encompassing backend services and user-facing interfaces.Create and implement scalable solutions tailored for teams and organizations, including enterprise-grade features such as authentication, permissions, security, compliance, and tools that enhance team collaboration and drive organizational adoption.Engage directly with customers to comprehend their needs and refine solutions accordingly.Contribute to architectural and technical decisions for the Enterprise platform.Work closely with Product, Design, and other Engineering teams to deliver superior user experiences.Mentor fellow engineers and elevate the standards of engineering excellence.Deliver quickly and iterate based on customer feedback and usage metrics.Required Skills and Experience:Proven full stack engineering expertise with experience in deploying production code.Demonstrated experience in developing B2B or enterprise software solutions.Familiarity with various layers of technology—from databases and APIs to frontend frameworks.Strong product intuition and the ability to translate customer needs into actionable features.

Replit’s platform helps millions of people create software using natural language. The company’s mission is to make software development accessible to everyone, supporting a broad and active community. Role overview The Staff Developer Experience Engineer shapes how Replit’s engineering teams build, test, and ship code. This position manages codebases, tools, and workflows that directly affect productivity across the organization. The focus is on improving the developer experience by enabling faster feature delivery, smoother onboarding, and reducing daily friction for engineers. This role requires strong technical skills across a multi-language codebase and a product-oriented mindset. Decisions made here influence both internal engineering processes and how quickly new features reach customers. Collaboration with the AI team is central, especially as Replit’s internal AI platform now handles more than 60% of merged pull requests. The position offers significant autonomy and the opportunity to help shape the developer experience team as it grows. What you will do Maintain and evolve a complex codebase, including a TypeScript monorepo, Go services, npm packages, and internal agentic tools. Own and optimize build and test pipelines to reduce build times and speed up developer feedback loops. Drive code generation and type-safe interfaces across services, using technologies such as GraphQL, Protocol Buffers, gRPC, and OpenAPI. Set and automate code quality standards with tools like TypeScript, ESLint, Prettier, and Go linters or formatters, including writing custom rules and plugins. Streamline onboarding and local development setup for new engineers. Collaborate with platform teams to improve deployment processes, infrastructure integration, and external tooling. Lead migrations to improved tools and keep the codebase up to date. Work closely with the AI team to refine the Agent’s performance and influence its architecture and stack decisions. Location and schedule This hybrid position is based in Foster City, CA. In-office attendance is required on Mondays, Wednesdays, and Fridays.

At Replit, we are revolutionizing software creation by empowering individuals to develop applications using natural language. With a vibrant community of millions and over 500,000 business users globally, we are breaking down traditional barriers to software development, making it accessible to everyone.About the Position:As a New Graduate Software Engineer, you will become part of a talented team dedicated to transforming the way software is created worldwide. You will engage in projects ranging from our AI-driven development platform to the distributed systems that facilitate real-time collaboration among millions of developers.This role offers you a unique opportunity to shape your career while influencing the future of software development. You will tackle meaningful challenges, with the autonomy to devise innovative solutions and the mentorship needed to evolve into a technical leader.Your Contributions:User-centric product features that enable anyone to create software effortlessly.AI coding assistant that comprehends user intent and crafts production-ready applications.Robust cloud infrastructure delivering instant, scalable development environments globally.Platform functionalities enabling seamless one-click deployments for millions of users.Essential Qualifications:Recent graduate (2024-2026) holding a degree in Computer Science, Computer Engineering, or a related discipline.Proficient in programming with modern languages such as JavaScript/TypeScript, Python, Go, or Rust.Experience in full-stack development, particularly with React, Node.js, and various database technologies.Demonstrated eagerness to learn new technologies and assume greater responsibilities.A collaborative mindset, thriving in cross-functional teams and appreciating diverse perspectives.Our Core Values:A problem-solving attitude: Approach complex challenges systematically and devise effective solutions.Self-motivated and independent: Able to work autonomously while collaborating effectively within cross-functional teams.

Join Replit as a Mobile Software Engineer and be at the forefront of shaping the future of coding education! In this role, you will leverage your expertise to develop innovative mobile applications that empower users worldwide. Collaborate with a dynamic team to create exceptional user experiences and drive the evolution of our platform.