Senior Software Engineer - AI

Mixpanel supports over 29,000 organizations, including Workday, Pinterest, LG, and Rakuten Viber, in transforming data into actionable insights. The platform blends product and web analytics, session replays, experimentation tools, feature flags, and metric trees. Mixpanel’s AI-driven analytics help teams improve adoption, retain users, and launch features confidently. More about the company can be found at mixpanel.com. Proactive Insights Team The Proactive Insights team is a new group dedicated to advancing Mixpanel’s AI analytics vision. Their mission is to move from reactive analytics to a system that proactively surfaces insights for users. The team tackles challenges such as identifying what changed in the data, understanding the reasons behind those changes, and recommending next steps. The aim is to keep users informed with timely and relevant recommendations, both within the Mixpanel platform and through external channels. AI-powered root cause analysis: Agents diagnose metric changes, identify key drivers, and suggest actions. AI automations for KPI monitoring: Automated agents track KPIs and deliver insights to Slack, email, or directly in Mixpanel. Intelligent alerts and anomaly detection: Advanced models, such as TimesFM, highlight significant shifts in data. Role overview The Senior Software Engineer - AI Product Insights joins the Proactive Insights team to build features that redefine how teams interact with their data. This position covers the full stack: designing dynamic frontend experiences using React, developing backend services in Python, and integrating with the query engine to surface unexpected insights. The work directly supports Mixpanel’s goal of making analytics more proactive and useful for customers. Location This role is based in San Francisco with a hybrid work arrangement.

About UsAt Sierra, we are on a mission to revolutionize how businesses engage with their customers through innovative AI-driven solutions. As a predominantly in-person company located in the vibrant heart of San Francisco, we are expanding our footprint with offices in Atlanta, New York, London, France, Singapore, and Japan.Our culture is deeply rooted in our core values: Trust, Customer Obsession, Craftsmanship, Intensity, and Family. These principles guide our daily operations and foster a collaborative work environment.Sierra was co-founded by industry leaders Bret Taylor and Clay Bavor. Bret, currently the Board Chair of OpenAI, has an impressive background with Salesforce, Facebook, and Google Maps. Clay brings 18 years of experience from Google, including leadership roles in AR/VR and Google Workspace.Your RoleJoin our dynamic engineering team of approximately 40 skilled professionals, including talented individuals like Mihai, Belinda, Arya, and Wei. You will work within small, autonomous teams focused on solving customer challenges. Key responsibilities include:Reporting & Experimentation: Develop systems for analyzing and visualizing extensive data sets related to agent performance. Empower agent developers to conduct A/B testing to inform data-driven enhancements.Data Exploration: Create Explorer, a powerful tool that combines the capabilities of ChatGPT with AI-driven clustering for conversational data.

About Resolve AIAt Resolve AI, we are revolutionizing the field of software engineering by addressing the burdens of software maintenance and production troubleshooting. Our cutting-edge AI Production Engineer autonomously investigates and resolves complex system issues from start to finish.Founded by Spiros Xanthos and Mayank Agarwal, who were pivotal in developing OpenTelemetry and leading Splunk Observability, our leadership team boasts a history of two successful exits to Splunk and VMware.We have secured over $150 million in funding from prestigious investors such as Lightspeed, Greylock, Unusual Ventures, and notable individuals like Jeff Dean (Chief Scientist, Google DeepMind), Thomas Dohmke (CEO, GitHub), Matt Garman (CEO, AWS), Reid Hoffman (Founder, LinkedIn), and Fei-Fei Li (Professor, Stanford).The RoleWe are seeking AI Agent Engineers who meld robust engineering expertise with AI-driven innovation, and a steadfast commitment to enhancing customer outcomes. Your role will encompass not just delivering features but also fully grasping customer challenges and implementing solutions that tangibly enhance their experiences.The most accomplished software engineers spend considerable time determining what to build, rather than merely coding. With the emergence of tools like Claude Code and Cursor, this balance is shifting, and we believe this trend is beneficial.This position transcends traditional software engineering. It acknowledges that impactful engineering work today resides at the crossroads of advanced technical execution, deep customer understanding, and thorough evaluation of effective solutions.What You'll DoChampion customer success from start to finish. Collaborate closely with customers, design partners, and internal teams to outline technical requirements, define success metrics, and establish delivery timelines — and then take the initiative to build and launch the solutions.Develop meaningful product features. Design and implement features across the entire technology stack, focusing on addressing real-world problems encountered in production rather than abstract concepts.Seamlessly integrate with customer environments. Dive deep into understanding customer systems and ensure our solutions fit perfectly within their workflows.

About Glean:Founded in 2019, Glean is a pioneering AI-driven knowledge management platform that empowers organizations to swiftly locate, organize, and disseminate information among their teams. With seamless integration into tools like Google Drive, Slack, and Microsoft Teams, Glean enhances accessibility to vital knowledge, fostering increased productivity and collaboration. Our state-of-the-art AI technology streamlines knowledge discovery, enabling teams to maximize their collective intelligence efficiently.Glean was established by Founder & CEO Arvind Jain, who recognized the hurdles employees encounter when searching for and comprehending information at work. Witnessing the fragmentation of knowledge and the overwhelming array of SaaS tools that hinder productivity, he was inspired to create an improved solution—an AI-enhanced enterprise search platform that allows individuals to quickly and intuitively access necessary information. Since its inception, Glean has emerged as the leading Work AI platform, blending enterprise-level search, an AI assistant, and robust application and agent-building functionalities to fundamentally transform the way employees work.About the Role:We are on the lookout for a talented software engineer to join our Insights team within the Billing and Insights sector, which is integral to Glean's consumption-based pricing, product analytics, and user targeting initiatives. This team is responsible for the full spectrum of the stack that renders our AI products both comprehensible and measurable for our customers and internal stakeholders—from logging and usage pipelines to insights dashboards, self-service logs, user targeting platforms, and natural language query (NLQ)-powered agents atop our data warehouse.As a Software Engineer on this team, you will design and implement data pipelines, backend services, and customer-facing experiences that illuminate and validate Glean's value proposition. You will collaborate closely with Product, Data Science, Finance, Marketing, and Go-To-Market teams to ensure that every metric we present is accurate, auditable, and consistently aligned across both internal and external perspectives.

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/

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.

fractional-ai is looking for a Senior or Staff Software Engineer to join the San Francisco office. This position centers on building advanced AI solutions with a team that values both technical depth and collaboration. Role overview This role focuses on designing and developing AI-driven systems. The work involves solving technical challenges and contributing to projects that push the boundaries of what AI can achieve. Collaboration with other engineers and stakeholders is a key part of daily responsibilities. Who will thrive Experienced engineers with a strong background in software development Those who enjoy working on complex technical problems Individuals who value teamwork and open communication Location This position is based in the San Francisco office.

Why Join UsAt Brex, we are revolutionizing the way businesses manage their spending through our AI-driven spend platform. Our integrated solutions, including corporate cards, banking, and global payment systems, empower companies to manage their finances with confidence. We proudly serve tens of thousands of businesses, from innovative startups to established enterprises like DoorDash, Flexport, and Compass, enabling them to take control of their expenditures, streamline costs, and enhance efficiency worldwide.Joining Brex means pushing your boundaries, challenging conventional thinking, and collaborating with some of the brightest talents in the tech industry. We are dedicated to fostering a diverse and inclusive culture, where your aspirations are only limited by your imagination. We equip you with the necessary tools, resources, and support to advance your career.Engineering at BrexOur engineering teams are committed to developing scalable systems with purpose and speed. We encompass diverse areas such as Software, Data, Security, and IT, and we thrive on autonomy and collaborative efforts. Our approach involves tackling complex technical challenges, taking ownership of our results, and striving for excellence in every phase—from architecture to deployment. Here, engineering is an art, and builders evolve into leaders.Your RoleAs a Senior Software Engineer at Brex, you will be instrumental in the end-to-end development of innovative products, whether for a small startup or a large corporation. We seek passionate individuals who excel in building products and navigating the complexities of dynamic environments. You will create impactful customer-facing products that directly influence business outcomes and help shape our long-term technical strategy while maintaining high standards of quality. You will be encouraged to leverage metrics and data, think creatively, and contribute to Brex's scaling efforts as we enter new markets. Your Work EnvironmentThis position is based in our San Francisco office, where we embrace a hybrid work model that blends the vibrancy of in-office collaboration with the flexibility of remote work. We currently require a minimum of three coordinated in-office days per week (Monday, Wednesday, and Thursday), with the option for up to four weeks of fully remote work each year!

Why Choose Flux?At Flux, we are transforming the landscape of hardware development by pioneering the world's first AI Hardware Engineer. Our mission is to democratize access to cutting-edge hardware creation and transform the way electronics are designed and manufactured globally.About the RoleWe are on a quest to build the first AI Hardware Engineer, software capable of designing tangible, manufacturable electronics from simple prompts. As a Senior Software Engineer focusing on Agentic Development, you will be responsible for creating the system's intelligence, developing agentic workflows, reasoning graphs, and integrations that empower both novice and experienced engineers in their journey from concept to manufacturable hardware.This position fuses advanced web engineering with AI systems design. You will leverage TypeScript and LangGraph within the Flux web application and backend platform, embedding intelligent features directly into the design environment.Key ResponsibilitiesDevelop and implement agentic reasoning capabilities using TypeScript (LangGraph).Integrate AI functionalities into the Flux web application (React/Redux) and Chat UI.Implement telemetry and logging for monitoring runtime health, performance, and cost efficiency.Collaborate closely with product and electrical engineers to refine intelligent ECAD workflows.Conduct evaluations and translate insights into engineering decisions.Contribute to the development of agentic patterns, conventions, and best practices within the engineering organization.Required Qualifications8+ years of experience in software engineering, with at least 1 year in developing generative-AI or agentic systems.Proficient in TypeScript, React, and Node.js.Experience with LangChain, LangGraph, or similar orchestration frameworks.Proven track record in building asynchronous, distributed systems in a production environment.Experience in integrating LLM-based systems into complex user-facing web products.Strong communication skills and comfort working in a fully remote, asynchronous team setting.Previous experience in a startup or in 0→1 product development environments.Preferred QualificationsFamiliarity with retrieval systems, evaluation pipelines, or agent benchmarking.

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 MagicalMagical is at the forefront of agentic automation, revolutionizing the healthcare landscape with cutting-edge AI technology. Our platform is designed to empower healthcare providers by automating labor-intensive tasks, allowing them to concentrate on what truly matters: patient care.By streamlining processes like claims management, prior authorizations, and eligibility assessments in an industry plagued by administrative hurdles, we're facilitating a transformative shift—one that is both necessary and inevitable.Our AchievementsWe are leading the charge in agentic automation, evidenced by:Significant revenue growth as clients expand their usage into new workflows.Quick proof-of-concept demonstrations within just 7 days—far exceeding industry norms.Reliable, self-healing automation solutions that excel where others falter.Unlike other AI companies, we deliver dependable solutions that yield tangible outcomes. With $41 million raised from renowned investors like Greylock, Coatue, and Lightspeed, our founder Harpaul Sambhi brings a wealth of expertise, having previously sold his startup to LinkedIn.About the RoleAs a Senior Software Engineer, Product on our Builder Experience team, you will harness your full-stack expertise to develop features that enable teams to create, configure, and deploy AI agents seamlessly. You will oversee the entire product interface—from user-friendly no-code tools for agent setup to dynamic dashboards for real-time monitoring and assessment.This position is crafted for engineers passionate about creating exceptional user experiences, understanding that stellar UX is crucial for making advanced technology accessible. Collaborating closely with customers and our design team, you'll deliver features that enhance agent development, all while maintaining a firm grasp of the underlying systems to create effective abstractions.This is a hybrid role, requiring you to be in our San Francisco office three days a week.

Join Figma, a leading design platform, as a Manager of Software Engineering for our innovative AI product team. In this pivotal role, you will lead a team of talented software engineers, driving the development of cutting-edge AI solutions that empower designers and teams around the world.Your responsibilities will include overseeing project lifecycles, mentoring team members, and collaborating with cross-functional teams to align on product vision and execution. You will play an integral part in shaping the future of design technology.

Join our dynamic team at Zip as a Software Engineer, specializing in AI product development. We are seeking a passionate mid-senior level engineer who is eager to contribute to innovative solutions that can shape the future of technology. In this role, you will collaborate closely with cross-functional teams to design and implement AI-driven applications that enhance user experiences.Your expertise will play a critical role in transforming ideas into scalable, robust software solutions. You will be involved in all stages of the development lifecycle, from requirements gathering to deployment, ensuring high-quality code and efficient performance.

About Saris AISaris AI specializes in developing AI-driven workflow agents that enhance and automate back-office operations specifically for banks and credit unions. Our solutions operate in highly regulated, high-stakes environments where precision, trustworthiness, and explainability are prioritized alongside rapid execution. We focus on designing for intricate systems, real-world operators, and sustainable impacts rather than just eye-catching demos.The RoleWe are seeking a Senior Product Designer who excels in navigating complex challenges. In this pivotal role, you will spearhead the design efforts across our core product areas, transforming convoluted workflows, outdated systems, and regulatory frameworks into intuitive, reliable user experiences. This position offers substantial ownership and influence over the product's strategic direction.You will collaborate closely with co-founders, product managers, and engineers to redefine the way banks and credit unions engage with AI workflow agents, particularly for users who are more domain experts than technical specialists.What You’ll DoLead end-to-end design for key product surfaces, including discovery, workflows, interaction models, and visual systems.Design user interfaces for enterprise software alongside complex, multi-step workflows.Translate banking and operational requirements into seamless user experiences.Partner with PMs to clarify problems, outline solutions, and navigate trade-offs.Collaborate with engineering teams to guarantee superior execution.Design with a focus on trust, transparency, and user control in AI-driven systems.Develop and maintain design systems, patterns, and documentation to support product scaling.Engage in user research, usability testing, and iterative refinement with real customers.What We’re Looking For6+ years of product design experience, including substantial time in enterprise or B2B software environments.Demonstrated success in designing complex systems such as dashboards, workflows, administrative tools, and regulated products.Proficiency in understanding and synthesizing user challenges.Strong capabilities in interaction design and information architecture.Experience collaborating closely with engineering teams in dynamic product environments.Ability to balance the needs of users with technical constraints and business objectives.

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.

Supported by key investors from Silicon Valley, Peregrine Technologies empowers public safety organizations, state and local governments, federal agencies, and private-sector institutions to address societal challenges with remarkable speed and precision. Our AI-driven platform transforms disconnected data into actionable insights—instantly delivering vital information that enables quicker, more informed decisions, resulting in improved outcomes across various touchpoints. Currently, Peregrine serves hundreds of clients in over 30 states and two countries, impacting more than 125 million people. We are poised for further growth as we expand into enterprise solutions and international markets.TeamAt Peregrine, our engineering team prioritizes empathy, believing it enhances our solutions. Observing how users interact with our product is essential as we navigate towards effective answers. Engineers will have the chance to collaborate onsite with our team, gaining insights into the diverse use cases we address.We cherish both ownership and teamwork—taking full responsibility for significant features while closely collaborating with fellow engineers to bring them to fruition. Humility and empathy are fundamental to developing optimal solutions, as we work directly with our deployment team and users to refine our offerings. Tenacity and creativity are vital in realizing our vision.RoleAs a pivotal member of our new AI team, you’ll play a key role in delivering unique value to our customers. This team is tasked with designing powerful, user-friendly experiences powered by generative AI. You will explore innovative methods for users to engage with our platform—whether through natural language commands or by enabling AI agents to manage complex tasks on their behalf. Your contributions will shape secure, impactful AI-driven features that assist clients in solving real-world issues more efficiently.Your responsibilities will encompass a variety of complex challenges, from scaling our platform to process terabytes of data from multiple sources to efficiently querying and alerting users in real-time, as well as optimizing search algorithms for quick results.Our tech stack is continuously evolving but is rooted in a backend framework of Python, Django, Celery, Airflow, and Kafka; a frontend constructed with React, Redux, and Mapbox; data storage solutions including PostgreSQL and Elasticsearch; machine learning models hosted in Bedrock and SageMaker; along with AWS, Pulumi, Terraform, and Kubernetes as our infrastructure.

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 prominent investors including Y Combinator and Alt Capital, we've achieved remarkable growth, scaling from $5 million to $36 million in annual recurring revenue (ARR) while expanding our talented team to 20 members.Our ambitious vision for 2026 is to develop a state-of-the-art customer experience platform, transforming entire contact centers with AI. Unlike traditional automation that requires ongoing human oversight, we are building intelligent AI "workers" capable of functioning as frontline agents, quality assurance analysts, and managers, constantly enhancing customer interactions.If you are a passionate innovator eager to solve complex technical challenges and make a tangible impact at one of the fastest-growing voice AI startups, we invite you to join us in shaping the future.Ranked among the top 50 AI applications by a16z: a16z List4th on Brex's Fast-Growing Software Vendors of 2025: Brex BenchmarkFeatured as a leading startup on: Leanaileaderboard

Join Scale AI as a Senior Software Engineer where you will play a crucial role in designing, developing, and managing secure and scalable infrastructure that empowers our team to excel in their work. You will collaborate with an innovative, agile, and solution-focused team dedicated to automating processes in identity and access management, endpoint management, and our extensive SaaS ecosystem. The right candidate will harness a variety of internal and external platforms to create applications, Slackbots, and dashboards for internal users while optimizing intricate workflows through automation. Your contributions will significantly enhance the operational efficiency of all General and Administrative teams within the company.Your Impact:As a full-stack engineer (60% backend / 40% frontend), you’ll collaborate with your team to create exceptional tools and applications for both internal use and external partners.You will be responsible for designing, developing, testing, and supporting full-stack applications on cloud-native distributed systems.You will establish real-time integrations with SaaS platforms across the organization.Develop a comprehensive quality framework/unit tests to ensure product performance, quality, and load handling, while effectively debugging and identifying system issues.Engage with broader teams, participate in engineering councils, conduct code reviews, and enhance our delivery processes.Work closely with the IAM team to manage cloud-based identity (Okta) and access controls, ensuring adherence to security protocols and standards for internal applications.Collaborate cross-functionally to identify opportunities for technological improvements and implement self-service solutions.

Join our dynamic team at Rhythms as a Senior AI Product Engineer. In this pivotal role, you will leverage your expertise in artificial intelligence to develop innovative products that enhance user experience and drive business success. You will collaborate closely with cross-functional teams to bring cutting-edge AI solutions to market.