Senior Software Engineer, Platform

At Discord, we connect over 200 million users monthly for diverse experiences, with gaming being the predominant activity. Our platform supports more than 90% of our users in enjoying games, collectively logging 1.5 billion hours each month across various titles. As we shape the future of gaming, our mission is to enhance interactions before, during, and aft…

About Fable SecurityIn today’s digital landscape, AI-driven threats and human errors represent the most significant risks to enterprise security. Cybercriminals exploit human behavior, contributing to 70% of security breaches. At Fable, we empower individuals to transform from potential targets to active defenders with innovative tools.Fable is at the forefront of human risk management, offering a platform that effectively influences employee behavior. Our user-friendly, scalable solution analyzes complex employee data, identifies high-risk behaviors, and delivers timely interventions directly to users in their work environment.Supported by notable investors like Redpoint Ventures and Greylock Partners, and founded by former members of the Abnormal Security team, Fable is tackling one of cybersecurity's greatest challenges in a rapidly expanding market. Our team comprises alumni from esteemed organizations such as Meta, Twitter, and Flexport, as well as top universities including Waterloo, Columbia, and Stanford. This is an exceptional opportunity for you to join us at a time of rapid growth and help shape the future of security.Why Join UsBuild and scale the foundational data infrastructure that drives a groundbreaking product.Collaborate closely with engineering, data science, and product teams to operationalize data at scale.Become part of a small, high-caliber team where your contributions will have a significant impact.As part of an early-stage company, every engineer plays a crucial role in shaping the evolution of our products and the company's approach to data management.Your RoleAs a Platform and Infrastructure Engineer, you will be instrumental in developing and scaling the core systems that underpin Fable’s product and data operations.Your responsibilities will span backend systems including real-time services and data pipelines. You will ensure reliability, scalability, and optimal performance across all layers. This highly collaborative role involves working closely with data and ML teams, contributing to systems that effectively manage data ingestion, processing, and delivery.This role demands cross-functional collaboration with engineering, data, and product teams to create robust, production-grade systems that grow alongside the company.ResponsibilitiesDesign, develop, and maintain scalable backend and infrastructure systems.Collaborate with cross-functional teams to deliver high-quality software solutions.Ensure system reliability, performance, and security through rigorous testing and monitoring.

Senior Software Engineer, Infrastructure & PlatformRole OverviewIn the role of Senior Software Engineer, Infrastructure & Platform at AfterQuery, you will take on the exciting challenge of designing and constructing the essential infrastructure that drives our innovative data generation, evaluation, and agentic systems.Your responsibilities will include developing shared platforms that empower our engineering and research teams to execute large-scale human-in-the-loop workflows, evaluation harnesses, and automated data pipelines essential for training cutting-edge AI models.This position demands a high level of technical expertise and offers extensive ownership. You will be responsible for architecting and building the foundational infrastructure relied upon by numerous engineers, ensuring that systems are scalable, reliable, and capable of handling high-throughput workloads.Collaboration with the founding team will be key as you define system architecture, establish best engineering practices, and create the infrastructure that supports the evolution of AI development.

About Our TeamThe Scaling team at OpenAI is dedicated to designing, constructing, and managing essential infrastructure that powers groundbreaking research.Our mission is straightforward: to expedite the advancement of research towards Artificial General Intelligence (AGI). We achieve this by developing foundational systems that researchers depend on, spanning from core infrastructure elements to specialized applications tailored for research. Our systems are designed to scale efficiently with the growing complexity and size of our workloads while ensuring reliability and user-friendliness.About the PositionWe are seeking a Senior Software Engineer to take charge of critical production infrastructure from start to finish.This role primarily focuses on backend and systems engineering, with a strong emphasis on low-level performance, distributed systems, and the hands-on management of vital services at scale. You will be responsible for transforming ambiguous challenges into actionable plans, delivering pragmatic solutions promptly, and refining them based on real-world feedback and iterations.This position goes beyond a standard Python backend role; we are specifically on the lookout for candidates with robust systems experience in Rust or C++, particularly in performance-sensitive infrastructure.This is an in-office role based in San Francisco, CA, following a hybrid model of three days in the office per week. We also provide relocation assistance for new hires.Your ResponsibilitiesManage critical infrastructure throughout its lifecycle, including design, implementation, deployment, operation, and ongoing improvements.Develop and maintain high-performance backend systems in Rust or C++ that facilitate core research operations.Design and optimize distributed data and serving systems, considering partitioning, replication, consistency, retries, backpressure, and failure isolation.Identify and resolve production bottlenecks related to latency, throughput, contention, hot spots, and overload scenarios.Oversee mission-critical services, including on-call duties, incident management, postmortems, observability, deployment safety, and zero-downtime migrations.Enhance the reliability of services running on Kubernetes, focusing on resource tuning and failure management.Collaborate closely with engineers and researchers to deliver fast, dependable, and effective systems.Elevate standards through strong technical judgment, ownership, and commitment to quality.You Will Excel in This Role If You Have:A proven track record of owning and delivering operationally critical systems end to end in ambiguous settings.Experience with systems programming in Rust or C++.Strong analytical skills and a problem-solving mindset.Excellent communication and collaboration skills.

Who We AreBaton is Ryder’s innovative product development division dedicated to leveraging cutting-edge technologies to transform the transportation and logistics landscape. Managing over $10 billion in freight, our technology has a significant impact across the U.S. economy.We are committed to creating and delivering software that not only meets but exceeds the needs of Ryder and its 50,000+ clients, which includes some of the most recognized brands globally. Our projects range from user-centric applications to the robust data platform that will drive the future of Ryder’s innovations.Baton’s mission: To enable a supply chain that operates on autopilot.Since Ryder’s acquisition of Baton in 2022, we have been operating with the agility of a startup while benefiting from the extensive reach of a Fortune 500 company. If you're passionate about tackling intricate challenges and making a real impact in the backbone of the American economy, you’ll thrive with us.Role: Software Engineer - InfrastructureDepartment: Data PlatformLocation: Hayes Valley, San Francisco, CA

ABOUT BASETENAt Baseten, we empower leading AI companies such as Cursor, Notion, OpenEvidence, Abridge, Clay, Gamma, and Writer with our state-of-the-art inference solutions. Our unique blend of applied AI research, versatile infrastructure, and intuitive developer tools allows organizations at the forefront of AI innovation to deploy cutting-edge models effectively. Recently, we have experienced significant growth, securing a $300M Series E funding round, backed by renowned investors like BOND, IVP, Spark Capital, Greylock, and Conviction. Become a part of our journey to create the ultimate platform for engineers to launch AI products seamlessly.THE ROLEAs a Senior Software Engineer focused on our Enterprise Platform, you will play a pivotal role in designing and developing robust infrastructure and platform features tailored for our enterprise clientele and cloud partners. Your contributions will encompass enabling self-hosted and single-tenant environments, implementing region-aware request routing, and ensuring enterprise-grade data security and integration capabilities.EXAMPLE INITIATIVESJoin our Infrastructure team and tackle exciting projects such as:Multi-cloud capacity managementOptimizing inference on B200 GPUsImplementing multi-node inference solutionsLeveraging fractional H100 GPUs for efficient model servingRESPONSIBILITIESDesign and implement infrastructure and platform features customized for enterprise clients, covering self-hosted clusters, single-tenant environments, and cross-cloud orchestration.Lead strategic initiatives to enhance secure and scalable private connectivity solutions.Craft and execute solutions that address complex regulatory and compliance requirements for enterprise environments.

Who We AreServal is an innovative AI-driven automation platform redefining operational efficiency for enterprises. Our intelligent agents seamlessly comprehend and execute real-world workflows, replacing outdated manual processes with adaptive, self-learning software. Since our inception in early 2024, we have garnered the trust of industry leaders such as General Motors, Notion, Perplexity, Vercel, Mercor, LangChain, and Verkada, streamlining high-volume operational tasks across their organizations.At the heart of Serval is a cutting-edge agentic AI platform that transforms natural language into actionable workflows. Our agents not only respond to queries but also reason, act across various systems, and continuously enhance their performance. What started as a solution for operational tasks has rapidly expanded into a versatile AI automation layer utilized across IT, HR, Finance, Security, Legal, and Engineering sectors.Our mission is to eradicate repetitive, manual tasks within enterprises, empowering teams through intelligent automation. In the long run, we aim to establish a universal AI operations layer—a system of agents that integrates across business functions, maintaining the momentum of modern companies.We are proud to be backed by renowned investors including Sequoia Capital, Redpoint Ventures, Meritech, First Round, General Catalyst, and Elad Gil, and founded by seasoned product and engineering leaders from Verkada.Role OverviewAs a Senior Software Engineer in Infrastructure at Serval, you will be pivotal in developing and scaling the core systems that empower our AI agents and workflow automation platform. A crucial aspect of this role involves enabling and supporting self-hosted deployments for enterprise clients needing on-premises or private cloud environments. We are looking for engineers with profound expertise in distributed systems, infrastructure-as-code, production operations, and customer-facing support, who aspire to influence the technical architecture of a rapidly evolving platform.What You'll DoDesign, implement, and operate large-scale distributed systems that power Serval's AI agents, workflow orchestration, and data pipelines.Create and maintain Terraform modules to provision and manage cloud infrastructure across AWS, GCP, or Azure environments.Develop and sustain deployment packages, installation scripts, and infrastructure templates, enabling customers to self-host Serval in their own environments.Provide technical support and guidance to enterprise customers during installation and deployment phases.

Why Join Harvey?At Harvey, we are revolutionizing the landscape of legal and professional services — not through minor adjustments, but by rethinking the process from the ground up. By harnessing cutting-edge agentic AI, a robust enterprise-level platform, and profound sector expertise, we are redefining how essential knowledge work is performed for years to come.This is a unique opportunity to contribute to the foundation of a transformative company at a pivotal moment. With over 1000 clients spanning more than 58 countries, proven product-market alignment, and exceptional investor backing, we are growing rapidly and establishing a new category in real-time. The challenges are ambitious, the standards are high, and the potential for personal, professional, and financial growth is unparalleled.Our team is intelligent, driven, and passionately dedicated to our mission. We operate with urgency, take true ownership of our challenges, and deliver results from initial concepts to long-term goals. We maintain close relationships with our customers — from executives to engineers — collaborating to address real-world problems with urgency and care. If you excel in uncertain environments, strive for excellence, and want to influence the future of work alongside like-minded individuals, we invite you to join us in our mission.At Harvey, we are actively shaping the future of professional services — and we’re just getting started.Role OverviewAs a Senior Software Engineer on the Core Infrastructure team at Harvey, you will be pivotal in architecting and constructing new infrastructure systems while enhancing and fortifying our existing frameworks. Our infrastructure underpins every user interaction with Harvey — managing billions of prompt tokens and millions of daily requests across our global legal AI platform.You will thrive in a balanced environment focused on innovation — building new systems — and operational excellence, ensuring Harvey remains resilient and efficient as we scale our products, regions, clientele, and usage. Your contributions will directly influence the reliability, scalability, and security of our platform, which serves the world’s leading law firms and professional service providers.This position is located in San Francisco, CA. We utilize an in-person work model and provide relocation assistance for new hires.What You Will DoDesign and develop scalable, fault-tolerant infrastructure systems that power Harvey's AI platform across multiple cloud environments.Manage and enhance our multi-cloud infrastructure (Azure, GCP), focusing on Kubernetes orchestration, networking, and container management.Lead key technical initiatives concerning observability, incident response, and performance optimization.

MidiHealth is seeking a Senior Software Engineer to join the Platform Engineering team. This hybrid role is based in the SF Bay Area and centers on building and enhancing the software that drives MidiHealth’s healthcare technology platform. The work contributes directly to improving patient outcomes through technology. Key responsibilities Design and develop software solutions for the core platform Collaborate with engineering, product, and cross-functional teams to deliver integrated features Support the reliability and scalability of the platform Location This position requires regular on-site work in the SF Bay Area as part of a hybrid schedule.

In a world where software is rapidly evolving, artificial intelligence (AI) is at the forefront, transforming how we interact with technology. At Scale AI, we recognize the immense potential of AI to enhance human capabilities, offering personalized support across various aspects of life—from coaching and tutoring to shopping and travel guidance. As enterprises, startups, and governments rush to integrate large language models (LLMs) into their operations, it is crucial to ensure these systems are safe, aligned, and effective. This involves rigorous human evaluation and reinforcement learning through human feedback (RLHF) during all stages of model development.Our innovative products, including the Generative AI Data Engine, SGP, and Donovan, are designed to empower the most advanced LLMs and generative models globally. By leveraging world-class RLHF, human data generation, model evaluation, safety, and alignment, we are shaping the future of human-AI interaction.As a member of our Platform Engineering team, you will play a pivotal role in designing and developing the foundational platforms that support Scale's operations. Your responsibilities will include architecting our core cloud infrastructure, enhancing our data lifecycle, and transforming the software development process for engineers at Scale. You will gain invaluable insights into the AI landscape as it develops within diverse sectors.

Aura is seeking a talented and experienced Senior Software Engineer, Platform to join our innovative team. In this role, you will be responsible for designing and implementing scalable software solutions that enhance our platform capabilities. You will work closely with cross-functional teams to ensure the delivery of high-quality software that meets the needs of our users.

About SentrySentry is dedicated to eliminating poor software experiences. Our mission is to empower developers to create high-quality software swiftly, allowing everyone to enjoy technology to its fullest.With over $217 million raised in funding and a community of over 100,000 organizations, including giants like Disney, Microsoft, and Atlassian, we are developing state-of-the-art performance and error monitoring tools. Our solutions help our partners minimize time spent on bug fixes and maximize product development.In our commitment to collaboration, Sentry follows a hybrid work model across our global offices. We have designated Mondays, Tuesdays, and Thursdays as in-office days to foster effective teamwork. If you are passionate about building tools that enhance the digital experience, join us in creating the next generation of software monitoring solutions.About the RoleAt Sentry.io, we offer vital services for diagnosing application health issues. Our tools are crucial for organizations aiming to respond adeptly in dynamic markets. We ensure a seamless and enjoyable experience in the development and deployment of these tools through a robust continuous integration environment and an insightful deployment pipeline.As part of the Infrastructure Engineering team, your contributions will be instrumental in supporting Sentry's growth and enabling engineering teams to operate with agility and confidence.Your responsibilities will include designing, developing, and maintaining internal software and platform capabilities that alleviate the cognitive load associated with infrastructure and developer tooling. You will create dependable, reusable abstractions that facilitate rapid shipping of features while incorporating durability, security, and operational excellence into service development and management.This role demands strong engineering judgment: selecting reliable technologies, planning for scalability from the outset, and crafting solutions that serve multiple teams. Your focus will be on practical systems that enhance reliability and ownership across the organization, driving adoption through comprehensive documentation, well-designed APIs, and seamless developer experiences that integrate into daily workflows.Ultimately, you will empower engineering teams to flourish within a culture of ownership—enabling them to deploy, manage, and evolve services confidently while minimizing operational burdens.Key ResponsibilitiesDesign systems that scale with company growth, ensuring a balance of reliability, performance, and cost-efficiency.Develop platform services that enhance internal operations and developer productivity.

Join our innovative team at Astranis as a Senior Software Engineer specializing in Infrastructure. In this role, you will be responsible for designing, implementing, and maintaining robust infrastructure solutions that support our cutting-edge satellite technology. Your expertise will play a crucial role in enhancing the reliability and scalability of our systems.

Compensation: Competitive base salary + substantial equityBenefits: Health & dental insurance, gym reimbursement, daily team lunches, 401(K)About JuliusAt Julius, we're pioneering advancements in applied AI by developing cutting-edge coding agents. Our platform executes approximately 1 million lines of code every 36 hours, serving over 1 million users and generating 3 million+ visualizations. We manage all code in isolated remote containers. As a revenue-generating entity, we are backed by AI Grant and founders with remarkable backgrounds from companies like Vercel, Notion, Perplexity, Palantir, Replit, Zapier, Intercom, and Dropbox.The RoleJoin us in building and scaling the robust code-execution platform that powers Julius, across both cloud and on-prem environments. We orchestrate over 500,000 containers/month and the demand is growing rapidly. You will take ownership of reliability, performance, and security within our multi-tenant compute environment.Your ResponsibilitiesDesign and manage a secure, multi-tenant container infrastructure that ensures quick startup and intelligent autoscaling.Implement on-prem/private cloud deployments using Helm and Terraform, integrating SSO, network controls, and audit logging.Enhance observability (metrics, traces, logs) with well-defined SLOs and lead incident response initiatives.Optimize images, scheduling, networking, and costs, while developing fair-use and rate-limiting controls.Your QualificationsStrong experience with production Kubernetes and container internals (Docker/containerd); solid understanding of networking principles.Familiarity with cloud environments (AWS/GCP/Azure) and Infrastructure as Code (Terraform/Helm).Proficiency in monitoring and logging tools (Prometheus, Grafana, OpenTelemetry, ELK/Vector).Understanding of security best practices for containerized, multi-tenant systems.Preferred QualificationsExperience with gVisor, Kata, Firecracker; Cilium/eBPF; GPU scheduling; serverless autoscaling (KEDA/Knative/Karpenter).Proven experience delivering on-prem or air-gapped enterprise software solutions.A passion for AI, with experience building side projects involving LLMs.Why Join Julius?Be part of a small, senior team where your contributions will have a massive impact. Tackle challenging infrastructure problems at a meaningful scale.

Join Our Team as an Infrastructure & Platform EngineerWe are seeking a talented Infrastructure & Platform Engineer to join our dynamic team at mlabs in San Francisco. As a rapidly growing technology company, we are at the cutting edge of the crypto derivatives market, an industry that generates tens of billions in annual revenue. Our exchange is one of the fastest-growing platforms for crypto derivatives, and we are committed to enhancing our offerings to meet the evolving needs of our users.Your mission will be to develop the next critical feature: Multi-Asset Margin, which will streamline how users post collateral directly on-chain, thus improving trading efficiency. You will work alongside our Infrastructure & Platform team, focusing on designing and managing our high-performance systems that deliver exceptional speed and reliability.Key Responsibilities:Design and implement robust scripts and services that ensure optimal performance in real-time environments.Manage and deploy computing resources and containers for tailored services and integrations.Automate scaling, load balancing, and congestion control for both compute and database layers.Establish and maintain CI/CD pipelines for streamlined deployments and continuous delivery.Monitor and optimize system performance across multiple metrics to enhance throughput and resilience.Develop and maintain indexing and explorer services for fast, real-time data access.Provision and optimize diverse database systems, including time-series, relational, key-value, and in-memory databases.

Join our dynamic team at Parafin as a Senior Software Engineer specializing in Infrastructure. In this pivotal role, you will design, develop, and maintain robust infrastructure solutions that support our scalable applications. Your expertise will help us enhance system performance, reliability, and security.We are looking for innovative thinkers who thrive in a collaborative environment. You will work closely with cross-functional teams to implement cutting-edge technologies that drive our product forward.

Join Convex in revolutionizing application development!At Convex, we are on a mission to redefine how software is constructed on the Internet. Our innovative platform enables developers to create swift, dependable, and dynamic applications without the need for a backend team. We offer a comprehensive full-stack application platform, meticulously designed with abstractions for databases, computing, and backend services, allowing both developers and LLMs to innovate rapidly, ensuring products that are scalable and maintain simplicity throughout their lifecycle.About Our Team:Our Convex team comprises engineers who have architected and built some of the largest backends globally, managing exabytes of data and millions of transactions per second. We are a friendly, collaborative group of passionate individuals who thrive on in-person collaboration in our San Francisco office.Position Overview:As Convex evolves, we are seeking outstanding senior or staff-level engineers to help us architect and sustain the future of our infrastructure at scale. If you have a passion for distributed systems and a robust background in designing and managing web infrastructure, we want to connect with you!We value robust architecture, effective collaboration, and simplicity. Our team embraces high ownership and places significant emphasis on operational excellence. This role is not solely focused on operations; we seek individuals who are dedicated to designing and constructing systems in the most effective manner possible, especially in a startup environment.Your Responsibilities:Architect, construct, and oversee Convex’s global cloud infrastructure.Analyze and enhance the performance and reliability of our systems.Independently prioritize projects, collaborating closely with the engineering team and CTO.Establish best practices and reliability standards as we expand our team and systems.Develop sophisticated systems and database code.Engage with feedback from leadership regarding seeking simpler and more elegant solutions.What We Value:A strong enthusiasm for distributed systems and backend infrastructure.A collaborative spirit and a desire to grow with the team.A commitment to best practices and maintaining high standards in engineering.

At Ripple, we are pioneering a future where value is transferred with the same ease and speed as information. Our bold vision is already a reality, as we deliver innovative crypto solutions to financial institutions, businesses, governments, and developers. We are committed to enhancing the global financial system, fostering economic equality, and expanding opportunities for individuals worldwide. Join us to unleash your potential and make a real-world impact in your career.If you're passionate about creating meaningful change and eager to explore remarkable career growth, we invite you to join our team and help us build real value.THE ROLE:As a Senior Platform Engineer, you will play a pivotal role in enhancing Ripple's production infrastructure and optimizing our release pipelines. This position merges the expertise of systems and software engineering to support the design and lifecycle of our hosted products. You will collaborate closely with product engineers to offer mentorship, automation, and the development of innovative platform features!KEY RESPONSIBILITIES:Oversee the deployment and maintenance of Ripple's multi-region, multi-provider service platforms with a focus on security and resilience.Create automation, monitoring, and instrumentation tools to streamline operations and boost engineering productivity.Develop solutions for complex technical challenges, including PKI, secret management, geographic failover, data replication, availability, and platform resilience.Automate new and existing platform and application lifecycle services, leveraging data to minimize human intervention.Work alongside product engineering teams to ensure code is ready for production.Lead the adoption of DevOps and GitOps principles throughout the organization.

About SentryAt Sentry, we believe that poor software should no longer be the norm. Our mission is to empower developers to create high-quality software more efficiently, allowing them to reconnect with the joy of technology.With over $217 million in funding and a trusted community of more than 100,000 organizations—including industry leaders like Disney, Microsoft, and Atlassian—we are pioneering performance and error monitoring tools that enable teams to devote less time to bug fixing and more time to product development.Embracing a hybrid work culture, we prioritize collaboration by designating Mondays, Tuesdays, and Thursdays as in-office days. If you are passionate about building impactful tools that enhance the digital experience, we invite you to join us in shaping the future of software monitoring.About the RoleAs we scale for the future, a robust platform is critical to our success. The Platform organization at Sentry oversees the essential components that drive our services—from cloud infrastructure and streaming systems to storage, deployment, and security. We are responsible for the foundational services that empower every product and engineering team at Sentry to innovate swiftly and with assurance.We are on the lookout for a dedicated and forward-thinking Senior Staff Software Engineer to spearhead this evolution. In this pivotal role, you will report directly to the VP of Engineering and collaborate with various teams across the organization to influence the trajectory of Sentry’s platform.Your ResponsibilitiesDesign and architect the future of Sentry by converting business objectives and product strategies into clear, scalable technical blueprints.Collaborate with product and engineering leaders to align technical roadmaps with the company’s strategic goals.Lead cross-functional initiatives within the Platform organization—taking ownership from inception to delivery and driving impactful results.Foster engineering excellence by mentoring platform engineers, disseminating best practices, and establishing high standards for system design, scalability, and operational quality.Evaluate significant architectural proposals to ensure consistency, maintainability, and long-term technical health across the organization.What Makes This Role ExcitingYou enjoy designing and creating platforms that empower teams to operate more swiftly and securely.You thrive on tackling complex, multi-layered challenges across product, infrastructure, and organizational structures.You have a passion for engineering that fosters collaboration and innovation.