Software Engineer, Infrastructure - San Francisco HQ

About the Role worldlabs is hiring a Software Engineer with a focus on real-time graphics. This role centers on building high-performance graphics applications and visual solutions. Collaboration with skilled teams is a key part of daily work, as projects aim to advance what’s possible in graphics technology.

Role overview OpenAI seeks a Graphics Software Engineer to influence the graphics features of its consumer devices. The position focuses on developing and refining graphics algorithms that enhance the experience for users of new hardware products. What you will do Create and implement graphics algorithms tailored for consumer hardware. Collaborate with engineering teams to add graphics features that improve product usability and engagement. Use expertise in software development and graphics programming to address complex technical problems. Location This role is based in San Francisco.

Agency Notice: We are not currently collaborating with recruitment agencies for this position. Please refrain from contacting Vizcom employees about this role. Any resumes submitted without prior agreement will be considered unsolicited.Why Join Vizcom?At Vizcom, we are on a mission to transform the design process by simplifying the journey from concept to creation, allowing impactful ideas to materialize in the physical world. Backed by significant funding (Series B with $51 million raised to date), we are experiencing robust growth and are expanding our core engineering team in San Francisco. Our projects span a wide range of areas including real-time collaboration, large-scale GPU inference, and leveraging a modern TypeScript stack to serve enterprise needs.The RoleAs a Senior Software Engineer – Graphics (Rendering & Real-Time Systems), you will be responsible for the rendering and interactivity layer that powers Vizcom’s creative canvas. Your work will encompass everything from brush simulation to real-time lighting and 3D previews, challenging the boundaries of what is achievable in the browser. You will engage with technologies such as WebGL, WebGPU, and AI-assisted graphics, collaborating with design and AI teams to make creativity feel instantaneous. In your first 90 days, you will: deliver a core rendering improvement (e.g., new brush pipeline, shader cache, or culling system) that enhances frame stability or interactivity; create a graphics profiling toolkit or debugging overlay to visualize GPU performance in production; ship an experimental graphics feature to production or beta users (for example, stylized rendering, 3D lighting, or layered compositing); and document a graphics architecture RFC clarifying design decisions and performance budgets.Compensation$195,000 - $225,000 annually + Equity OptionsWhat You’ll Be DoingBuild and Optimize the Rendering Engine: Design and refine Vizcom’s core WebGL/WebGPU pipeline to achieve high performance and visual fidelity.Enhance Real-Time UX: Develop seamless brush and material interactions, animation systems, and responsive 3D previews.Integrate AI Solutions: Collaborate to incorporate GPU inference outputs (such as diffusion, segmentation, and line following) into interactive visual workflows.Performance Optimization: Profile GPU and CPU paths, minimize frame latency, and optimize memory usage for real-world applications.

About UsAt Physical Intelligence, we are pioneers in integrating general-purpose AI into the physical realm. Our team comprises dedicated engineers, scientists, roboticists, and innovators focused on creating advanced foundation models and learning algorithms that will empower the robots of today and the physically-actuated devices of tomorrow.To achieve outstanding real-world performance, we prioritize ultra-low system latency, reliable sensor pipelines, and comprehensive engineering that ensures perception and control loops function seamlessly at real-time speeds.As a Runtime Software Engineer, you will be at the forefront of developing low-latency, high-throughput systems that support our physical intelligence model. Your role will not involve designing ML models; instead, you will optimize the entire stack from the operating system to the camera pipeline and networking, ensuring flawless production execution. You will work closely with researchers, platform engineers, and robotics operators to identify performance bottlenecks and maximize system efficiency.The TeamOur Runtime team is crucial in creating the foundational platform that our robots, sensors, and evaluation systems depend on. This team excels in Linux systems engineering, camera and sensor integration, robot actuator control, networking, real-time input/output, and performance optimization tools. They ensure that our machine learning models and control systems function within strict latency constraints and are resilient under real-world conditions.Your ResponsibilitiesManage Real-Time Pipelines: Design and implement low-latency, high-reliability sensor and actuator pipelines utilizing Linux, drivers, and middleware.Enhance System Performance: Analyze and optimize computational efficiency across I/O, memory, scheduling, networking, and storage to satisfy real-time requirements and boost throughput.Develop OS-Level Features: Modify or expand Linux components, drivers, and scheduling mechanisms to ensure deterministic performance under load.Streaming & Video Systems: Create and refine real-time video streaming systems with precise frame timing and packet scheduling.Ensure Reliability & Debugging: Develop tools for profiling, tracing, and resolving timing challenges across distributed systems and hardware interfaces.Collaborate Across Functions: Partner with researchers, hardware engineers, and operational teams to drive system performance and reliability.

At Rylo, we are revolutionizing the way video is captured and shared. Our innovative camera technology records stunning, immersive video effortlessly, eliminating the hassle of traditional filming and editing. Built by a talented team of former engineers from Instagram and Apple, our advanced stabilization software and intuitive smartphone app allow users to create beautiful videos without the stress of perfect framing or stability. Simply hit record and enjoy the magic of producing flawless video content after the fact.Watch Rylo in actionJoin us at Rylo and become part of a dynamic team focused on developing cutting-edge consumer camera technology. You will have a unique chance to drive software advancements and influence hardware design, paving the way for innovative computational photography solutions.

Join Mapbox, the premier real-time location platform tailored for the next generation of location-aware businesses. As the only platform empowering organizations with a comprehensive suite of tools for seamless navigation of people, packages, and vehicles, Mapbox has attracted over 4 million registered developers. Our platform is celebrated for its flexibility, robust security, and commitment to privacy compliance. Organizations harness Mapbox's applications, data, SDKs, and APIs to craft personalized and immersive experiences that captivate their customers.About Our WorkOur team is responsible for the critical engine that enables real-time navigation for Mapbox's largest global clients. We handle vast amounts of geospatial data through advanced backend services, data pipelines, and AI-driven workflows to identify, validate, and disseminate live road updates, including traffic incidents and road closures. The intelligent AI agents we develop enhance our core algorithms, ensuring that Mapbox maps are as dynamic as the real-world roads, helping millions of drivers reach their destinations optimally.Engineers within our team are involved in every phase of the incident lifecycle:Intelligent Ingestion and Detection: Create automated AI agents to collect data and identify road closures using proprietary Mapbox signals.Validation and Conflation: Utilize algorithms to remove outdated data and consolidate duplicate reports into a single, accurate source of truth.Strategic Delivery: Architect systems that distribute this data throughout the Mapbox ecosystem.AI Collaboration: Collaborate with the MapGPT team to enhance our Feedback Agent, enabling us to refine our maps based on real-time customer feedback.As AI becomes integral to contemporary engineering workflows, we seek engineers who can thoughtfully incorporate AI into design, development, and decision-making processes. Our interview process will include discussions on how you implement AI in your engineering practices.

SingleStore develops a real-time data platform used by demanding applications around the world. The engineering team builds and maintains a cloud-native architecture that supports both high-performance transactional and analytical workloads. Code is shipped to production throughout the year, with engineers working closely alongside Product, Sales, and Go-To-Market teams to help drive business results. Role overview The Helios team seeks a Senior Software Engineer to design and deliver key features for SingleStore’s cloud-managed service. This position focuses on building and maintaining cloud-based metering and billing systems that support the company’s revenue streams. The work involves distributed systems, cloud infrastructure, and database technology. Senior engineers in this role take ownership of large projects that directly affect the cloud platform and company revenue. Responsibilities include leading the development of bookkeeping systems and integrations that process millions in cloud revenue. The role requires a high level of attention to detail, setting technical direction, and solving complex system-level challenges. Technical leadership and mentorship are important, but the position remains hands-on with development work. Collaboration with Product and customer-facing teams is essential to ensure the platform meets the needs of both enterprise clients and new users. The team values engineers who enjoy tackling deep technical challenges, take pride in building reliable systems, and are enthusiastic about mentoring others. Note: SingleStore is considering candidates at multiple levels for this opening. Final leveling (Senior, Staff, or Principal) will be determined based on experience, impact, and technical leadership demonstrated during interviews. What you will do Lead technical design and decision-making for major projects that shape the cloud platform. Design and implement new features across networking, control plane, and managed service infrastructure. Tackle complex, mission-critical system problems with scalable and maintainable solutions. Work with Product Management to translate business and customer needs into technical solutions. Investigate and resolve challenging issues in both production and development environments while balancing multiple priorities. Communicate complex technical decisions and trade-offs, explaining their impact on system performance, reliability, and business outcomes. Mentor junior engineers and help foster a culture of learning and improvement. Location This position is open to candidates based in the United States.

About HeyMiloAt HeyMilo, we are revolutionizing the hiring process by developing AI interviewers capable of engaging in meaningful conversations with candidates. Our technology enables companies to streamline their screening processes and make informed hiring decisions through advanced conversational AI.Join our dynamic team as we collaborate closely with clients to integrate AI seamlessly into their hiring workflows.The RoleWe are seeking a Senior Software Engineer to spearhead special projects. This position offers a unique opportunity to take ownership and address real-world challenges swiftly. You will work at the crossroads of engineering, product development, and customer engagement, crafting comprehensive solutions that propel our business forward.Your ResponsibilitiesCollaborate with sales teams and clients to identify and analyze real-world challengesRapidly develop prototypes and iterate quickly to meet tight deadlinesTransform vague requirements into functional, end-to-end systemsDeliver solutions across the technology stack while making practical trade-offsAssist in evolving initial solutions into production-ready systemsQualifications We SeekPreference for ex-founders or those with similar startup experienceStrong product intuition and decision-making capabilities in ambiguous situationsAbility to thrive under pressure and meet stringent deadlinesSolid understanding of software fundamentals including databases, systems, and APIsRobust experience in full-stack or backend developmentProficient with AI coding tools such as Cursor, Claude Code, Codex, etc.Skilled in leveraging AI to significantly enhance productivityAdept at translating business challenges into innovative technical solutionsDemonstrates high ownership, resourcefulness, and results-driven executionPreferred SkillsExperience with large language models (LLMs), prompt engineering, or conversational AIFamiliarity with real-time systems or voice/telephony applicationsExperience in working with enterprise clients

Side Inc. builds technology that helps real estate professionals launch and manage their own boutique firms. The company’s platform takes care of legal, regulatory, and operational details, so agents can focus on selling homes and growing their businesses. As a Brokerage-as-a-Service provider, Side streamlines daily operations for real estate entrepreneurs. The platform is designed to improve efficiency, support client relationships, and make it easier for agents to run independent brokerages. Side is headquartered in San Francisco and has secured over $300 million in funding from major venture capital firms. The team includes experienced real estate professionals and engineers who work together to support agents as they build their businesses. Side is known for its rapid growth and ongoing innovation in the real estate sector.

At Browserbase, we revolutionize web browsing for AI agents and applications. Our innovative headless browser infrastructure automates interactions with websites, simplifies form filling, and replicates user actions seamlessly.Having successfully raised a $40M Series B last year, we are on an accelerated growth trajectory. Supported by esteemed investors such as Kleiner Perkins, CRV, and Notable Capital, our dynamic team is committed to realizing our CEO's vision for empowering the best AI tools and transforming web automation.Our Core Infrastructure team is essential for maintaining the efficiency of our operations. This group tackles significant distributed systems challenges, ensuring our platform's speed, reliability, and scalability.

 *** PLEASE NOTE: THIS INTERNSHIP IS UNPAID *** As a Graphic Illustrator intern, you will play a vital role in creating visually stunning graphic artwork that enhances our marketing initiatives and supports our video animation team. Your creativity and attention to detail will be essential in producing high-quality designs that meet strict deadlines. We are looking for someone with strong project and workflow management skills, ensuring timely completion of tasks while maintaining an obsessive attention to detail throughout all levels of graphic design and preparation. Proficiency in the latest versions of Adobe Illustrator, Photoshop, and InDesign is required. You will also have the opportunity to work on special projects such as infographics and logo designs, showcasing your versatility and creative flair.

About Fractional AIFractional AI specializes in creating tailored generative AI software that drives business transformation.In a landscape where every C-suite is striving to connect theoretical AI with real-world applications, we bridge that divide with top-tier engineering talent and bespoke AI solutions. Explore our case studies for further insights.We are a profitable company experiencing rapid growth, dedicated to tackling the most challenging issues in applied AI.About the RoleWe are on the hunt for a dynamic and exceptionally dependable generalist eager to contribute to building a groundbreaking company. You will spearhead special projects and initiate new strategies that will facilitate the scaling of Fractional AI.This is a fast-paced role in a hypergrowth environment, where each day brings new challenges. One week, you might engage in market research for potential acquisitions; the following week, you could be managing strategic partnerships with foundational model companies.This position involves a blend of strategy, execution, and daily problem-solving, with no existing playbook.

Join Condor Software as a Full-Stack Platform EngineerAt Condor, we are revolutionizing the financial infrastructure that supports clinical development. With billions invested annually in discovering and developing new therapies, we strive to connect clinical operations and finance into a cohesive system. By integrating real-time financial intelligence, we empower R&D and finance leaders with the tools they need to make informed, high-stakes decisions.We are an AI-driven, pharma-native infrastructure provider, scaling industry standards in collaboration with top-tier partners. Our platform facilitates prediction, control, and execution in the most complex R&D environments worldwide.The Importance of Your RoleHaving established ourselves as a trusted partner for enterprise teams, we are now focused on the challenging task of scaling our platform to meet increasing demands. As a rapidly growing company, backed by prominent investors like Felicis and 645 Ventures, this is a unique opportunity to contribute to the foundational infrastructure that will redefine how therapies reach patients.Your ResponsibilitiesAs a Full-Stack Platform Engineer, you will be pivotal in building and scaling the core platform that supports the financial intelligence infrastructure relied upon by leading biopharma companies. This role encompasses critical engineering tasks at the intersection of backend systems, cloud infrastructure, and intelligent automation, with a strong emphasis on reliability and scalability.Your primary focus will be on backend architecture, where you'll design and implement services that drive complex financial and operational workflows. You'll be instrumental in shaping data flow, workflow orchestration, and enabling emerging AI-driven capabilities. This role goes beyond simple integration; you'll be crafting robust primitives that support other teams as our product and customer base expand.Working as a core member of a cross-functional product team, you will closely collaborate with product managers, designers, quality engineers, and data specialists to transition features from concept to production. While backend expertise is crucial, you will also engage across the stack to ensure the platform's capabilities are effectively leveraged.

Embrace the Future of Commerce with Whatnot!Whatnot is revolutionizing live shopping across North America and Europe, offering a vibrant platform to buy, sell, and explore your favorite items. We are redefining e-commerce by seamlessly blending community, shopping, and entertainment into a unique marketplace tailored for you. As a part of a remote co-located team, our innovation-driven culture is firmly rooted in our core values. With operational hubs in the US, UK, Germany, Ireland, and Poland, we are collectively shaping the future of online marketplaces.From fashion and beauty to electronics and collectibles like trading cards, comic books, and live plants, our live auctions cater to diverse interests.And this is just the beginning! As one of the fastest-growing marketplaces, we seek innovative, forward-thinking problem solvers across all areas. Follow our latest updates on our news and engineering blogs and be part of our mission to empower individuals to turn their passions into thriving businesses, while fostering connections through commerce. Role OverviewThe Fraud Experience team is dedicated to building intelligent, real-time systems that protect Whatnot’s marketplace from fraudulent activities. We focus on designing, developing, and deploying end-to-end, machine-learning driven systems that proactively identify and combat fraud, ensuring a transparent, user-centered enforcement approach.Your ResponsibilitiesArchitect and lead the development of comprehensive fraud detection, prevention, and intervention systems, integrating machine learning, backend, and client-side components.Construct intelligent user graphs to analyze behavioral patterns, identify collusion networks, and reveal account connectivity at scale.Design, train, and implement both traditional ML and LLM-powered models to detect fraudulent behavior across user interactions, payments, and marketplace activities.Create scalable data pipelines and real-time inference systems able to handle high-volume, low-latency machine learning tasks.Develop human-in-the-loop systems that continually enhance detection accuracy and adapt to evolving adversarial strategies.Conduct in-depth behavioral and adversarial data analysis to identify emerging fraud trends and drive continuous improvement.

Join Planet Labs Inc. as a Senior Product Manager for Real Time Insights, where you will lead the development and execution of innovative product strategies that leverage our cutting-edge satellite imagery technology. In this pivotal role, you will collaborate with cross-functional teams, drive product roadmaps, and ensure that our solutions meet the dynamic needs of our customers.

Litigation Graphics ConsultantEmployment Type: Full Time, Mid-LevelDepartment: Litigation SupportCGS Federal is in search of a talented Litigation Graphics Consultant to join our dynamic team. This role is pivotal in supporting a comprehensive customer initiative for a significant Federal agency.At CGS, we unite driven, highly skilled, and innovative individuals to tackle the most pressing challenges faced by the government using advanced technology. We are looking for individuals eager to drive government innovation, value teamwork, and possess the foresight to address the needs of others. Our culture promotes a supportive environment, fostering professional development through diverse learning opportunities.Key Responsibilities:As a Litigation Graphics Consultant, you will design, develop, and maintain compelling graphics for litigation cases. Your duties will include creating timelines, document excerpts, diagrams, scene reconstructions, and various other graphics. You will also handle video editing and format conversions, assist with audio-visual setups, and provide basic IT support related to case presentations. Your goal will be to ensure all evidence is presented clearly and effectively in court.In addition, you will:Enhance and revise diagrams/figures in expert reports.Develop opening and closing slides, estimating a total of 100-150 slides.Revise existing graphics, estimated at 80-100 slides.Collaborate with client experts and third-party witnesses to refine graphics, estimated at 50 slides or fewer.Interpret data to create visual representations.Utilize MS Office PowerPoint 2019 (with plans to upgrade to PowerPoint 365).

Are you a creative individual with a passion for design? Join us at Socure as a Junior Graphic Designer! In this role, you will collaborate with our team to create visually appealing graphics for various platforms, including digital and print. You will have the opportunity to contribute to exciting projects and help enhance our brand identity.

At worldlabs, we are pioneers in building foundational world models that possess the ability to perceive, generate, reason, and interact seamlessly with the 3D environment. Our mission is to unlock the full potential of AI through spatial intelligence, transforming perception into action and imagination into reality.We envision that spatial intelligence will revolutionize storytelling, creativity, design, simulation, and immersive experiences in both the virtual and physical realms.We are proud to bring together a world-class team driven by curiosity and passion, with diverse backgrounds in technology—from AI research to systems engineering and product design—creating a dynamic feedback loop between our innovative research and user-centric products.Role OverviewWe are in the process of developing a robust web application focused on 3D Gaussian Splat scene generation, editing, and publishing. We seek a Pipeline Engineer who will integrate cutting-edge research features, ensuring they are reliable, debuggable, and user-friendly.This role is characterized by a high level of ownership and is primarily backend-focused, bridging the gap between R&D and frontend. You will engage end-to-end with graphics/ML algorithms, backend services, and frontend UI, transforming proof-of-concepts into dependable features. We are looking for someone who thrives on making complex systems operate smoothly in production and continuously refines them based on both internal evaluations and user feedback.

At Scribd, Inc., we are dedicated to enhancing human understanding through our suite of innovative products, including Scribd®, Slideshare®, Everand™, and Fable. Our mission revolves around transforming access into deeper insights and expertise for billions globally.Our CultureWe foster a culture where authenticity and boldness are encouraged; where constructive debates lead to commitment, and where every team member is empowered to prioritize customer needs.We believe that exceptional work emerges from harmonizing individual flexibility with a strong sense of community. Our Scribd Flex program allows employees to select their preferred work style and location, while also emphasizing the importance of intentional in-person interactions to enhance collaboration and culture. All employees are expected to participate in occasional in-person meetings, regardless of their location.We look for team members who embody “GRIT”—the intersection of passion and perseverance towards long-term goals. GRIT serves as a framework for our operations: setting and achieving Goals, delivering impactful Results, contributing Innovative ideas, and building a strong Team through collaboration.Join us at Scribd (pronounced “scribbed”) as we ignite human curiosity and create a world filled with stories and knowledge, democratizing the exchange of ideas and empowering collective expertise.The TeamOur ML Data Engineering team is responsible for powering metadata extraction, enrichment, and content understanding across our platforms.