Senior Software Engineer - Performance

Role overview As a Senior Software Engineer specializing in performance at Zoox, the focus is on enhancing the efficiency and reliability of software systems that power advanced robotics. This position involves working on challenging technical problems where software performance directly impacts the overall capabilities of robotics platforms. What you will d…

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.

Join ALTEN Technology USA, an innovative engineering organization committed to transforming visionary concepts into reality—from enhancing space exploration and developing life-saving medical technology to pioneering autonomous electric vehicles. We have a robust team of over 3,000 professionals across North America, collaborating with top-tier companies in sectors such as aerospace, medical devices, robotics, automotive, commercial vehicles, electric vehicles (EVs), rail, and more.As a proud member of the global ALTEN Group—comprising over 57,000 engineers across 30 countries—we are dedicated to delivering excellence throughout the entire product development lifecycle, from consulting through full project outsourcing.At ALTEN Technology USA, you will tackle some of the most pressing engineering challenges in the world, with access to mentorship, abundant career growth opportunities, and competitive benefits. We are dedicated to creating a workplace culture that values, supports, and inspires our employees to reach their full potential.Location: Foster City, CAWorkplace: On-site, 5 days per week

We are seeking a skilled Validation Engineer specializing in Oracle EBS to join our dynamic team. In this role, you will play a critical part in ensuring the integrity and compliance of our systems through rigorous validation processes. Your expertise will help drive the quality and performance of our Oracle EBS solutions.

Zoox’s Perception and Mapping Data team develops the systems behind high-definition maps for autonomous vehicles. These maps are essential for safe operation and expansion into new cities, as well as for keeping current routes accurate and up to date. Role overview This Software Engineer position centers on building and improving mapping systems that support Zoox’s autonomous driving technology. The work involves both creating new maps for additional locations and maintaining the quality of existing ones. What you will do Design and implement large-scale algorithms and workflows for HD mapping Build and maintain data pipelines to process mapping data efficiently Collaborate with cross-functional teams to address real-world challenges in autonomous driving Improve the speed and efficiency of mapping new areas and updating current maps Requirements Interest in solving challenging technical problems related to autonomous vehicles Experience with mapping systems, large data pipelines, or similar technical domains is valuable Location This role is based in Foster City, CA.

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.

Join Visa Inc. as a Staff Machine Learning Engineer and be at the forefront of innovation in the financial technology landscape. In this role, you will leverage advanced machine learning techniques to create cutting-edge solutions that enhance our services and customer experience. You will collaborate with cross-functional teams to drive impactful projects and contribute to the growth of our machine learning capabilities.

Replit Inc. creates a platform where millions can build software using natural language. By lowering traditional barriers, Replit is changing how applications are built and shipped. Role overview The Senior Developer Experience Engineer focuses on making engineering at Replit more efficient and enjoyable. This hybrid position is based in Foster City, CA, with in-office days on Monday, Wednesday, and Friday. The role spans Replit’s codebases, internal tools, and developer workflows, aiming to remove obstacles and help engineers deliver features quickly and reliably. Supporting developer experience at Replit means smoothing out daily work, reducing operational pain points, and ensuring teams can release new features with less friction. The position works across teams to support every engineer who ships code at Replit. Key responsibilities Maintain and improve internal codebases, tools, and workflows for Replit’s engineering teams Partner with the AI team to advance the internal AI platform, which is responsible for generating over 60% of merged pull requests Refine strategies for the Agent’s default stack and enhance its outputs Work with product and infrastructure teams to ensure technical decisions benefit both developer productivity and customer value Requirements Strong technical skills and experience working with large, complex codebases Ability to assess how infrastructure choices affect both engineers and end users Experience collaborating across teams and influencing developer experience at a broad level This is one of the first roles at Replit dedicated to developer experience, offering significant influence and opportunities for career growth as the team grows.

Join Zoox’s dynamic System Design and Mission Assurance (SDMA) team, where we are committed to constructing a robust Safety Case and validating the safety of our autonomous driving vehicles. Our mission is to empower rapid iterations and expand capabilities through innovative, reliable, and pragmatic safety engineering. As a Platform Systems Simulation Test Engineer, you will collaborate with a multidisciplinary team to develop and rigorously test systems that support our groundbreaking robotaxi, ensuring the safety and performance of our advanced closed-loop drive system.In this role, you will leverage your strong technical expertise to build comprehensive simulation test suites, automate data post-processing, maintain high-fidelity simulation environments, and strategically define the ideal balance between vehicle testing and simulation efforts.

At Replit, we're revolutionizing software development by empowering individuals to create applications using natural language. With a vibrant community of millions, including over 500,000 business users, we're breaking down barriers in application creation and making coding accessible to everyone.About the Role: We are on the lookout for a talented Senior Design Engineer to seamlessly connect the realms of design and engineering. In this pivotal role, you will influence our design system's deployment, craft innovative front-end solutions, and facilitate exceptional user experiences across our platform. Your contributions will lay the groundwork for empowering everyone with an idea to develop their own applications.Your Responsibilities:Design and implement sophisticated UI components and systems that harmonize visual appeal with technical efficiency.Spearhead the technical advancement of our design system (Replit UI) and ensure its evolution.Create interactive prototypes to explore new interaction paradigms and validate design ideas.Work closely with product designers to bring concepts to life with meticulous accuracy.Establish and promote best practices for front-end development and component architecture.Guide and mentor fellow engineers on design principles and implementation strategies.Develop tools and processes that streamline the design-to-development pipeline.Participate in design reviews, focusing on technical feasibility and implementation strategies.Advocate for accessible, responsive, and high-performance user interfaces.Required Skills & Experience:8+ years of front-end development experience with a strong design aesthetic.Expert knowledge of HTML, CSS, and JavaScript/TypeScript.Extensive experience with modern front-end frameworks, preferably React.Solid understanding of design systems and component-based architecture.Experience in implementing intricate UI animations and interactions.Demonstrated ability to convert design concepts into production-ready code.Excellent communication skills for effective collaboration with design and engineering teams.Familiarity with accessibility standards and best practices.

At Replit, we empower every individual to create software effortlessly through our innovative agentic platform. With a vibrant community comprising millions of users globally, including over 500,000 businesses, we are revolutionizing software development by breaking down traditional barriers.We are on the lookout for a Security Operations Center (SOC) Engineer to join our dynamic Security Operations team. Your mission will be to safeguard our fast-paced, cloud-native AI programming platform. You'll be at the forefront of identifying emerging threats—from 0-day vulnerabilities and active exploitation campaigns to bug bounty findings and customer-reported issues—quickly assessing their relevance and potential impact on Replit. You will lead investigations, analyze signals throughout our environment, and collaborate with Security, SRE, and Engineering teams to develop and implement effective containment and mitigation strategies.This position is hands-on and investigative, requiring a solid technical foundation, a deep understanding of modern software engineering practices, CI/CD systems, and a familiarity with cloud-native infrastructures, particularly Google Cloud Platform (GCP). You will thrive in a fast-paced environment and work seamlessly across various teams.

Join Zoox, where we are revolutionizing the future of autonomous transportation with cutting-edge software tailored for our uniquely designed vehicles. Our mission is to fast-track our journey to market while providing an unparalleled experience for our customers.As a member of the Developer Experience team at Zoox, you will play a critical role in enhancing the development of autonomy software, services, and applications. We are committed to setting and upholding the highest engineering standards throughout the organization. Our strategy incorporates established programming languages and tools, along with the innovation of custom solutions as needed. By harnessing the power of Large Language Models (LLMs), we aim to accelerate development processes and refine engineering workflows. We seek a talented engineer with a robust background as a full-stack developer who understands the complexities of engineering at scale and is adept at crafting and executing effective solutions.

Join Zoox as a Senior Machine Learning Engineer specializing in Perception, where you will play a pivotal role in crafting and deploying state-of-the-art detection models that leverage integrated sensor data. This position focuses on pioneering projects tailored for the next generation of driving software, which includes developing joint detection and tracking models and innovating methods to transmit enriched embeddings to downstream models to enhance semantic understanding and uncertainty management.This unique opportunity allows you to significantly contribute to Zoox's venture into new horizons. By engineering more robust and adaptable models, you will aid in navigating complex and diverse scenarios, propelling our mission to achieve safe and dependable autonomous mobility. We seek an enthusiastic and driven individual who is eager to push the limits of perception technology in autonomous vehicles.

Join Zoox as an Autonomous Vehicle Safety Software Engineer and be at the forefront of transforming transportation technology. In this role, you will contribute to the development and enhancement of software systems that ensure the safety and reliability of our autonomous vehicles.As a key member of our engineering team, you will collaborate closely with cross-functional teams to design, implement, and test software solutions that meet rigorous safety standards. Your expertise will help drive the evolution of our vehicle systems, ensuring that they operate seamlessly and safely in complex environments.

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 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.

About ZuoraAt Zuora, we empower businesses to grow intelligently and adapt swiftly. Our innovative platform supports modern business models — embracing subscriptions, usage-based pricing, and AI-enhanced, outcome-driven offerings — enabling companies to launch new products, automate complex billing processes, and unlock consistent, recurring revenue streams.As pioneers of the Subscription Economy for over a decade, we are evolving by developing the ultimate platform for quote-to-cash, assisting companies in monetizing their products and services with a flexible, AI-ready infrastructure.Location & Work ArrangementsThis position is located in our Foster City, CA office and operates on a hybrid work model. Team members will be expected to work onsite three days a week to promote collaboration, innovation, and team synergy.This is not a fully remote position.The OpportunityJoin Zuora’s Integration Hub (IH) team, where we are constructing the foundational connections of the Subscription Economy. Our mission is to facilitate seamless, secure, and scalable integrations between Zuora and the larger enterprise ecosystem — including CRM, ERP, payments, data platforms, and partner applications.As a Software Engineer III on the Integration Hub team, you will design and develop high-performance integration services, event-driven systems, and extensible APIs that empower mission-critical business workflows. You will play a vital role in building a modern, scalable integration platform that supports real-time data exchange, automation, and enterprise-grade reliability.ResponsibilitiesDesign and develop scalable integration services, APIs, and connectors.Create event-driven and microservices-based architectures to facilitate real-time data flows.Collaborate closely with Product, Platform, Security, and external partners to deliver dependable and extensible integration capabilities.Enhance system performance, observability, and resilience across distributed systems.Write clean, maintainable, and thoroughly tested code in accordance with engineering best practices.Contribute to architectural discussions and drive technical enhancements across the Integration Hub platform.

Zuora builds a platform that helps businesses adapt to changing markets, supporting a wide range of business models including subscriptions, usage-based pricing, and AI-driven services. With over a decade of experience, Zuora has played a key role in shaping the Subscription Economy by enabling companies to manage complex billing, launch new offerings, and maintain recurring revenue streams. The platform covers the entire quote-to-cash process, providing flexibility for monetizing products and services on an AI-ready foundation. Location and Work Model This Software Engineer III role is based in Foster City, California. The position follows a hybrid schedule, with team members working onsite three days per week. In-person collaboration is a core expectation, and remote work is not available for this position. Role Overview The Integration Hub team at Zuora develops the core framework that connects Zuora’s platform with a variety of enterprise systems, including CRM, ERP, payment platforms, data solutions, and partner applications. The team’s goal is to deliver secure and scalable integrations that power the Subscription Economy. As a Software Engineer III on this team, the main focus is on designing and building integration services, event-driven systems, and APIs that support essential business workflows. This work enables real-time data exchange and automation for large-scale enterprise customers. What You Will Do Design and build scalable integration services, APIs, and connectors Develop event-driven and microservices-based architectures to support real-time data flow Collaborate with Product, Platform, Security teams, and external partners to deliver reliable integrations Enhance system performance, observability, and resilience across distributed systems Write clean, maintainable, and well-tested code following engineering best practices Participate in architectural discussions and advocate for technical improvements across the Integration Hub platform About the Team Modern businesses depend on a network of systems such as CRM, ERP, billing, payments, and analytics. As more companies move toward subscription and usage-based models, seamless integration between these systems is critical for success. The Integration Hub team ensures reliable data flow and connectivity across this ecosystem.

Join Zoox as an Engineering Manager to spearhead the development of innovative tools that enhance our autonomous ride-sharing service. The Rider Support Tools team is essential in fulfilling Zoox's vision—providing safe and seamless autonomous mobility globally.In this pivotal role, you'll oversee the creation of systems that ensure the safe and efficient operation of our expanding fleet of autonomous robotaxis while guaranteeing an exceptional experience for our riders. You will collaborate closely with product managers, designers, QA engineers, and remote operators to deliver scalable full-stack web applications that monitor and support our fleet, enhance in-vehicle visualization systems, and facilitate real-time rider assistance.If you thrive on tackling unique, cross-disciplinary challenges and are passionate about leading initiatives that have a tangible impact on the future of transportation, we invite you to apply for this transformative role.

Join Zoox as a Senior Engineering Manager for our Machine Learning Platform. In this pivotal role, you will lead a talented engineering team, driving innovation and excellence in our machine learning initiatives. You'll be responsible for overseeing the architecture and development of ML systems that enhance our autonomous vehicle technology. Your leadership will empower engineers to explore cutting-edge solutions and collaborate across disciplines.At Zoox, we are committed to redefining mobility through advanced robotics and AI, aiming to create a seamless transportation experience that is safe, efficient, and sustainable.