Support Engineering Lead at Retell AI | San Francisco Bay Area

Join Our Innovative Team at Retell AIRetell AI is at the forefront of revolutionizing the call center industry through advanced voice AI technology. In just 18 months since our inception, we have empowered thousands of businesses to optimize their sales, support, and logistics calls, which previously relied on large teams of human agents. Supported by promin…

Join the Revolution at Retell AIRetell AI is pioneering the future of call centers through innovative voice AI, driven by first principles thinking.In just 18 months since our inception, we have empowered thousands of businesses with our AI voice agents, transforming how sales, support, and logistics calls are managed—previously requiring extensive human teams. Supported by prestigious investors such as Y Combinator and Alt Capital, we've rapidly scaled from $5M ARR to an impressive $36M ARR with a compact yet dynamic team of 20.Our ambition for 2026 is to create a revolutionary customer experience platform, where entire contact centers are powered by AI. Moving beyond basic automation, we aim to develop intelligent AI “workers” that serve as frontline agents, QA analysts, and managers, continuously enhancing customer interactions without the need for constant human oversight.As we expand, we are seeking passionate engineers who are eager to solve challenging technical problems, act swiftly, and make a significant impact in one of the fastest-growing voice AI startups. Let’s shape the future together.

About Retell AIAt Retell AI, we are pioneering the future of call centers through innovative voice AI technology. Our cutting-edge solutions are transforming how companies engage with customers.In just 18 months since our inception, we've empowered thousands of businesses with our AI voice agents that efficiently manage sales, support, and logistics calls, significantly reducing the need for large teams of human agents. Supported by industry-leading investors including Y Combinator and Alt Capital, we've grown our annual recurring revenue from $5M to an impressive $36M while expanding our team from 5 to 20 talented individuals since 2025.Our ambitious vision for 2026 is to develop a state-of-the-art customer experience platform where entire contact centers are driven by AI. Unlike basic automation requiring constant human oversight, we’re engineering intelligent AI “workers” capable of serving as frontline agents, quality assurance analysts, and managerial roles, all while optimizing customer interactions continuously.We are rapidly expanding and seeking driven builders who thrive on solving complex technical challenges, act decisively, and wish to make a tangible impact in one of the fastest-growing voice AI startups.Join us in shaping the future!Recognized as a top 50 AI application in the a16z list: https://tinyurl.com/5853dt2xRanked #4 in Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025Featured among the top startups on: https://leanaileaderboard.com/

Join Retell AIAt Retell AI, we leverage first principles to revolutionize the call center experience through innovative voice AI technology.In just 18 months since our launch, our AI voice agents have been adopted by thousands of companies to manage sales, support, and logistics calls, significantly reducing the need for large teams of human agents. Supported by Y Combinator, Alt Capital, and other notable investors, we've achieved impressive growth, scaling from $5M to $36M ARR with a dedicated team of 20.Looking ahead to 2026, we aim to create a comprehensive AI-powered Customer Experience (CX) platform that transforms entire contact centers. Instead of simple automation requiring ongoing human oversight, we are developing intelligent AI "workers" that serve as frontline agents, QA analysts, and managers — perpetually executing, monitoring, and enhancing customer interactions.We're experiencing rapid growth and are on the lookout for passionate innovators eager to tackle complex technical challenges, accelerate progress, and make a significant impact at one of the leading voice AI startups.Let’s build the future together.Ranked in the top 50 AI applications by a16z: https://tinyurl.com/5853dt2x#4 on Brex's Fast-Growing Software Vendors list for 2025: https://www.brex.com/journal/brex-benchmark-december-2025One of the top startups on: https://leanaileaderboard.com/

Join Retell AI as a Senior Machine Learning EngineerRetell AI is at the forefront of revolutionizing the call center industry using groundbreaking voice AI technology. Within just 18 months of our inception, we have empowered thousands of businesses with our AI voice agents capable of managing sales, support, and logistics calls that traditionally required extensive human teams.Supported by renowned investors, including Y Combinator and Alt Capital, our journey has seen us scale from $5M to an impressive $36M ARR with a dedicated team of 20. Our ambition for 2026 is to develop a state-of-the-art customer experience platform, transforming entire contact centers with AI. We are building intelligent AI “workers” that will serve as frontline agents, quality assurance analysts, and managers—constantly executing, monitoring, and enhancing customer interactions.We are rapidly expanding and seeking passionate innovators eager to solve complex technical challenges and make a tangible impact in one of the fastest-growing voice AI startups. Together, let's shape the future of customer interactions.

About Retell AI Retell AI builds voice AI technology for call centers, helping thousands of companies handle sales, support, and logistics calls with AI voice agents. Since launching 18 months ago, the company has grown annual recurring revenue from $5M to $50M, backed by investors including Y Combinator and Alt Capital. Our Mission By 2026, Retell AI aims to deliver a customer experience platform powered entirely by AI. The vision goes beyond basic automation: intelligent agents will take on roles as frontline workers, quality assurance analysts, and managers, improving customer interactions while reducing the need for ongoing human involvement. Recognition Ranked among the top 50 AI applications by a16z (a16z List) #4 on Brex's Fast-Growing Software Vendors of 2025 (Brex Benchmark) High placement on the Leana AI Leaderboard Working at Retell AI The team is expanding quickly and welcomes those who want to solve tough problems and help shape the future of voice AI. Retell AI is based in the San Francisco Bay Area and continues to grow as one of the industry's fastest-moving startups.

Join Us at Retell AIRetell AI is revolutionizing the call center industry by leveraging innovative voice AI technology based on first principles.In just 18 months since our inception, we have attracted thousands of companies that rely on Retell's AI voice agents to efficiently manage sales, support, and logistics calls, previously handled by large teams of human agents. Supported by renowned investors such as Y Combinator and Alt Capital, we have rapidly grown from $5M to $36M in Annual Recurring Revenue (ARR) with a dedicated team of 20.Looking ahead to 2026, our ambition is to establish a state-of-the-art customer experience platform entirely powered by AI. We aim to create intelligent AI “workers” capable of serving as frontline agents, quality assurance analysts, and managers, continuously optimizing customer interactions without the need for constant human oversight.We are on an exciting growth trajectory and are seeking driven individuals who are eager to solve complex technical challenges, accelerate progress, and make a significant impact at one of the fastest-growing voice AI startups.Let’s innovate the future together!Ranked as a top 50 AI app by a16z: https://tinyurl.com/5853dt2x#4 on Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025One of the top startups on: https://leanaileaderboard.com/

Join Retell AI as a Senior Full Stack Software EngineerAt Retell AI, we are revolutionizing the call center industry with innovative voice AI technology. Our cutting-edge solutions are designed to improve communication efficiency, allowing businesses to automate sales, support, and logistics calls that once required large teams of human agents. In just 18 months, we have experienced remarkable growth, achieving $36M in annual recurring revenue with a dedicated team of 20, up from $5M at the beginning of 2025.Our goal for 2026 is to create a modern customer experience platform powered entirely by AI. We are not just automating but building intelligent AI agents that can perform the roles of frontline agents, quality assurance analysts, and managers, continuously enhancing customer interactions.We are rapidly expanding and seeking talented individuals who are ready to solve challenging technical problems, work at a fast pace, and make a significant impact in one of the fastest-growing voice AI startups.Let’s shape the future of communication together!

Role overview retell-ai seeks a Senior Software Engineer in the San Francisco Bay Area to focus on Go-To-Market (GTM) projects. This engineer will help shape how new products are created and introduced to customers, directly influencing the company’s approach to launching and scaling offerings. What you will do Collaborate with teams across the organization to translate business needs into software that advances GTM objectives. Develop and improve products to ensure they fit seamlessly into the market. Uphold high standards for code quality and system performance as products grow and change. Collaboration This position works closely with product, business, and engineering partners to deliver solutions that address both technical and market demands.

ABOUT RETELL AIRetell AI is at the forefront of revolutionizing call centers with innovative voice AI technology, utilizing first principles to redefine customer interactions.In just 18 months since our inception, thousands of companies have adopted Retell's AI voice agents to manage sales, support, and logistics calls that previously required extensive human teams. Supported by prestigious investors such as Y Combinator and Alt Capital, we have rapidly scaled to $36M ARR with a lean team of 20, up from $5M at the start of 2025.Our vision for 2026 is to create a modern customer experience (CX) platform where entire contact centers are powered by AI, moving beyond basic automation that relies on constant human intervention to intelligent AI “workers” that operate as frontline agents, quality assurance analysts, and managers, continuously executing, monitoring, and enhancing customer interactions.As we grow, we seek passionate builders eager to tackle challenging technical problems, accelerate progress, and make a genuine impact within one of the fastest-growing voice AI startups.Join us in shaping the future.Ranked among the top 50 AI applications in a16z's list: https://tinyurl.com/5853dt2x#4 on Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025Also recognized as a top-ranking startup on: https://leanaileaderboard.com/ABOUT THE ROLEAs a Senior Software Engineer - Support Automations at Retell, you will take charge of the technical support for our advanced, agentic voice AI platform. This hands-on leadership role involves personally troubleshooting complex customer issues, developing AI agents and automations, and guiding a growing team of support engineers.You will work at the intersection of engineering, customer relations, and product development, ensuring exceptional reliability, swift resolutions, and scalable support as Retell expands.This position is perfect for someone who thrives on solving intricate technical challenges in high-pressure environments, engages directly with customers, and enjoys building systems and teams from the ground up.

About Flow EngineeringAt Flow Engineering, we are revolutionizing the complexities of hardware design with our AI-native requirements platform. Our innovative approach combines elite engineering talent with AI capabilities, enabling teams to design, iterate, and deliver projects more efficiently than ever before.Role OverviewWe are seeking a Senior Frontend Software Engineer who will be pivotal in shaping core user experiences within our platform. You will leverage AI-driven workflows to create a seamless, intuitive user interface that simplifies complex systems engineering concepts. Collaborating closely with design, product, infrastructure, and AI engineering teams, you will ensure that our product remains user-friendly and efficient.Your ResponsibilitiesLead the development of substantial user-facing features in Flow v3, including interactive views for requirements, collaboration processes, and AI-enhanced workflows.Create high-quality, accessible user interfaces utilizing a contemporary frontend framework and component system.Incorporate AI functionalities into the product in ways that are intuitive, interpretable, and beneficial for engineers.Collaborate with design and product teams to rapidly iterate on interaction patterns, prototypes, and new workflows.Contribute to defining frontend architecture, design systems, and performance enhancements as the application and user base grow.About YouYou possess over 5 years of experience in developing rich, data-intensive web applications using modern frontend frameworks.You have robust experience with React (or a similar framework) and TypeScript, including component design, state management, and testing methodologies.You adopt a product-oriented mindset, considering user journeys and edge cases beyond just individual screens.You are comfortable collaborating closely with design and product teams, providing and receiving feedback throughout the iteration process.You are open to occasionally working across the stack (e.g., refining APIs, integrating features) to deliver complete functionalities.Our Technology StackOur primary frontend stack includes React and TypeScript.We utilize Tailwind or a similar utility-first or component-driven styling approach.Integration with backend APIs and AI services is a critical aspect of our platform.

About UsAt Amari AI, we're revolutionizing the logistics industry by transitioning global trade from outdated, manual workflows to innovative AI-driven solutions. Our advanced AI agents enhance human capabilities, automating labor-intensive tasks to expedite shipment processing with greater accuracy and efficiency.Having successfully navigated the initial product development phase, we have established a strong product-market fit and are experiencing exceptional growth, with over 100% month-over-month revenue increase. Backed by $5M in funding from First Round Capital and Pear VC, we're expanding our platform to serve a growing customer base with significant operational volume. Our highly skilled team hails from top tech companies like Google, LinkedIn, and Salesforce, as well as leading academic institutions and AI research facilities.The RoleWe are in search of a Senior Frontend Engineer who excels at the convergence of rapid execution and intricate systems design. In this pivotal role, you will spearhead the advancement of our AI-powered platform, transforming complex logistics workflows into seamless, high-performance user experiences.This position is crucial for a technical leader eager to connect sophisticated backend AI data with the human operators who depend on it. Your contributions will extend beyond merely delivering features; you will establish the architectural standards that will enable our team to accelerate its pace of innovation as we grow.What You’ll DoArchitect Scalable Systems: Design and oversee the transformation of our frontend architecture to facilitate real-time, data-intensive dashboards utilizing TypeScript, React, and Tailwind CSS.Design Human-in-the-Loop AI: Create user-friendly interfaces that clarify AI outputs and automated workflows, making them accessible and manageable for operational teams.Drive Velocity & Quality: Take full responsibility for the product lifecycle, from technical exploration and scoping to monitoring in production, ensuring a high shipping frequency without compromising reliability.Technical Leadership: Articulate the technical vision, mentor new team members, and cultivate an exceptional engineering culture.Complex Problem Solving: Address the unique challenges of global trade, ensuring our core services maintain robust uptime while managing unpredictable real-world document inputs.Who We’re Looking ForSenior Expertise: 6–8+ years of professional software engineering experience, demonstrating a successful track record in dynamic, high-growth environments.Technical Proficiency: Expertise in JavaScript frameworks, particularly React, along with experience in TypeScript and CSS frameworks.Problem Solver: Strong analytical skills with a passion for tackling challenging issues and implementing effective solutions.

About UsAt Serval, we are at the forefront of innovation, pioneering an AI-native automation platform that revolutionizes enterprise operations. Our intelligent agents are designed to comprehend real-world workflows and execute them seamlessly, transforming manual tasks and outdated systems into adaptive, self-learning software solutions. Established in early 2024, Serval has rapidly gained the trust of industry leaders such as General Motors, Notion, Perplexity, Vercel, Mercor, LangChain, and Verkada, enabling them to automate complex operational workflows.Our cutting-edge platform utilizes agentic AI technology that translates natural language into production-ready workflows. Serval's agents do more than respond; they reason, take decisive actions across various systems, and continuously enhance their performance through user interactions. Initially focused on operational use cases, our technology has 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 throughout enterprises, empowering teams through intelligent automation. Ultimately, we aim to develop the universal AI operations layer—a system of agents that optimally manages workflows across all business functions, ensuring efficiency and innovation.Supported by top-tier investors including Sequoia Capital, Redpoint Ventures, Meritech, First Round, General Catalyst, and Elad Gil, our founding team comprises seasoned product and engineering experts from Verkada.

Join Collate as a Frontend Software EngineerAt Collate, we are revolutionizing the life sciences sector with our innovative AI document generation platform. Our mission is to expedite the delivery of life-saving innovations to patients by automating complex paperwork. As a seamless end-to-end solution, we support every stage of drug, diagnostic, and medical device development, from initial concept to market launch.Led by our visionary CEO, Surbhi Sarna, a former General Partner at Y Combinator, and our CTO, Nate Smith, a former Visiting Partner at Y Combinator, we have assembled a team of elite professionals with experience from top-tier companies like Google and Amazon. Our small team has garnered over $30M in seed funding from esteemed investors including Redpoint and First Round Capital, positioning us for rapid growth and impact in the healthcare field.As a Frontend Software Engineer, you will play a pivotal role in shaping the user experience at Collate. Your innovative contributions will translate complex AI technology into intuitive and user-friendly tools for doctors, patients, and researchers. Your work will directly influence the product experiences that are critical for improving patient outcomes.You will be working on a predominantly frontend-focused enterprise workflow application, ensuring the interface is clear, reliable, and trustworthy. This is a unique opportunity to design the intersection where transformative technology meets real-world users.Our Cutting-Edge Tech StackWe utilize modern technologies including TypeScript, React, and Tailwind CSS for our frontend development, creating a dynamic environment for innovation and collaboration.

Who We AreAt Lightning AI, we are the pioneers behind PyTorch Lightning, established in 2019. We create a comprehensive platform that facilitates the development, training, and deployment of AI systems, streamlining the journey from research to production.Following our merger with Voltage Park, an innovative neocloud and AI Factory, we combine cutting-edge software with scalable and cost-efficient computing resources. Our platform equips teams with the essential tools for experimentation, training, and production inference, all while prioritizing security, observability, and control.We cater to a diverse clientele that includes individual researchers, startups, and sizable enterprises. With a global presence, our offices are located in New York City, San Francisco, Seattle, and London, supported by renowned investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our ValuesMove Fast: We embrace speed and precision, breaking down complex challenges into manageable steps.Focus: We achieve our goals one at a time, collaborating effectively to deliver high-quality features.Balance: We believe sustained performance comes from proper rest and recovery, promoting a healthy work-life balance.Craftsmanship: We take pride in our work and strive for excellence in every detail.Minimal: We prioritize simplicity in our innovations, focusing on what truly matters.What We’re Looking ForWe are seeking a talented Frontend Engineer to enhance and scale the user interface and frontend infrastructure of the Lightning AI platform. This individual will take ownership of key features, driving development from inception to deployment while collaborating with a highly skilled team of engineers, product managers, and designers. You will have the opportunity to build from proof of concept to release, with an emphasis on speed, quality, and iterative improvements.With over 10,000 organizations leveraging Lightning, you will play a vital role in shaping how AI is built and deployed globally.This is a hybrid role based in our San Francisco office, requiring in-office attendance for 2 days a week. The salary range for this position is $120,000 to $250,000.

ABOUT THE ROLERetell AI is seeking a dynamic Senior Product Marketing Manager and Growth Marketer to take charge of our market presence. In this pivotal role, you will spearhead product positioning, manage product launches, create a comprehensive sales enablement toolkit, and develop impactful brand campaigns that capture genuine attention. This position is predominantly focused on product marketing (80%), with the remaining 20% dedicated to overseeing creative social campaigns.This is a highly autonomous position where you will not only maintain but also define the messaging strategy. You will report directly to the Chief Marketing Officer and collaborate closely with our founding team.KEY RESPONSIBILITIESOwn and refine positioning and messaging for all buyer segments and industry verticals.Craft tailored narratives for sectors including healthcare, legal, automotive, insurance, utilities, and logistics.Ensure competitive differentiation remains sharp as the Voice AI landscape evolves.Lead end-to-end product launches.Shape strategy, narrative, and facilitate cross-functional collaboration from initiation to announcement.Collaborate with the Developer Evangelist on demonstration and technical content.Establish the sales enablement framework from the ground up.Conduct enablement sessions to keep the team updated on the latest messaging.Drive customer and market insights.Conduct ongoing discovery and translate insights into effective messaging.Create case studies and proof points across key verticals.Oversee brand and social campaigns (20%).Conceptualize campaigns and brief the creative team for execution.Schedule campaign bursts aligned with product launches, events, and key AI industry moments.

Frontend Software EngineerLocation: San Francisco, CAJoin us at Latent as we pioneer the future of AI-driven clinical systems, transcending the outdated Electronic Health Record (EHR) framework. Your innovative designs will empower healthcare providers and patients to intuitively access vital information, thereby enhancing treatment efficiency and overall patient care.Ideal Candidate ProfileWe seek a Frontend Engineer who is passionate about transforming complex backend and AI functionalities into clear and impactful user experiences. You will thrive in our dynamic, collaborative office environment and possess a keen desire to understand the intricate technical and healthcare landscapes that underpin our solutions.High Standards: You maintain exemplary standards for code quality and user experience.Domain Curiosity: You are eager to learn about new technologies and the complex healthcare regulations we navigate (e.g., Prior Authorizations).Bias for Action: You proactively tackle challenges and take initiative to solve problems without waiting for direction.Tool Proficiency: You are highly skilled with your tools, adept at using the command line and keyboard shortcuts.Key ResponsibilitiesAs a Frontend Engineer, you will be responsible for the user interface and frontend architecture of our primary product:UX Architecture: Design a robust and adaptable React ecosystem tailored for complex, mission-critical healthcare applications and user-centric AI tools.Intuitive Design: Create high-level UI/UX solutions that enable providers and operational teams to seamlessly access clinical data and AI-generated insights for workflows such as Prior Authorizations and Appeals.Frontline Impact: Develop interfaces that are essential for Patient Interaction workflows, ensuring clarity and efficiency in design.Collaboration: Collaborate closely with Full Stack and Backend Engineers to define interfaces and APIs that facilitate rapid product development and iteration.

About GigaGiga has successfully secured $61 million in Series A funding and boasts a diverse client portfolio that includes industry leaders like DoorDash. We are on a mission to revolutionize customer experiences by developing real-time AI agents capable of understanding emotions, resolving issues instantly, and scaling to meet the demands of the world's largest enterprises.This is a pivotal moment in our journey. While we have achieved significant milestones, our ambitions extend further. Our vision is to establish ourselves as the premier AI platform for enterprise automation, driven by our voice superintelligence. To bring this vision to life, we are on the lookout for exceptional engineers.The work we do impacts millions of users daily, and our engineers enjoy a high degree of autonomy, making a tangible impact. This is a unique opportunity to join a company with visionary founders, a proven track record of commercial success, and a clear trajectory towards becoming a generational powerhouse. Here are some highlights about us:Voice AI startup Giga raises $61M Series ADoorDash and Giga PartnershipIf this mission resonates with you, we invite you to apply!Why Join Us in this Role?Momentum: Become part of a team recognized by both customers and investors.Ownership: Play a vital role in innovative projects that transform industries and shape the company's technical and product direction.Growth: Advance your skills alongside top-tier engineers and visionary founders.More About the RoleWe are searching for an experienced Senior Frontend Engineer with a strong background in creating functional and visually engaging user experiences. You will spearhead the design and development of our frontend applications that users interact with daily, collaborating closely with product managers, designers, and backend engineers.What You’ll DoOwn the Frontend: Quickly contribute to our products and lead the development of design systems.Craft Seamless UX: Develop responsive, accessible, and high-performance interfaces for enterprise users.

Responsibilities:Develop Our Product. Take ownership of software features that enhance our AI platform, empowering private market investors to analyze deals swiftly and accurately. This role requires you to actively engage in coding and delivering essential platform components from the ground up.Ensure Quality and Excellence. Establish and maintain coding standards, architectural guidelines, and review procedures; mentor fellow engineers. Co-cultivate a culture centered on practical, reliable, and test-driven development that swiftly meets business requirements.Scale for Growth. Assist in monitoring and scaling the architecture of our platform and its infrastructure.Collaborate Across Functions. Engage closely with product, security, and go-to-market teams to translate our strategic roadmap into actionable features and deliverables.