Paritosh Mohan

VP of Engineering @ Twelve Labs (We’re Hiring!) | Founder | Ex - Phaidra & AWS

San Francisco, California, United States

About

I build and scale technical organizations that turn frontier artificial intelligence, infrastructure, and complex systems into production products. I am currently VP of Engineering at Twelve Labs, a multimodal AI company building foundation models and developer platforms for video understanding. Previously, I was a founding engineer and VP of Engineering at Phaidra, where I helped build the company from inception into a production artificial intelligence company serving mission-critical industrial systems. My operating range spans company-level technology strategy, organizational design, product and engineering planning, hiring and leadership development, architecture, foundation model development & inference and large-scale distributed systems. Earlier in my career, I was one of the founding engineers at AWS IoT, where I helped design and build the core components responsible for supporting billions of connected devices and millions of transactions per second. I also founded and ran two startups in the consumer tech space.

Experience

  • VP of Engineering at TwelveLabs
    Jul 2025 - Present · 1 yr 1 mo

    Twelve Labs builds multimodal foundation models and developer platforms for video understanding, including semantic multimodal & hybrid search, video summarization, and video-to-text interaction. As VP of Engineering, I lead engineering across machine learning, product, AI inference, infrastructure, and security, partnering closely with cross-functional partners and executive leadership to bring frontier models and multimodal search capabilities into reliable enterprise-grade products. Focus areas: * Scaling engineering execution across multimodal foundation model inference, video data ingestion & processing, AI-enabled video native products, APIs/SDKs, infrastructure, security, and enterprise deployments. * Building operating mechanisms for planning, execution, operational excellence, incident reviews, and cross-functional alignment. * Developing engineering leaders, improving talent density, and raising the bar for execution quality. * Supporting enterprise and public-sector customer requirements, including reliability, security, on-prem and restricted deployment models, and production readiness.

  • Phaidra (5 yrs 1 mo)
    • VP of Engineering
      Jan 2023 - Jul 2025 · 2 yrs 7 mos

      * Built and led a global engineering organization across Applied AI, Data & AI Platforms, ML Infrastructure, Applications, API, DevOps/SRE, and Technical Program Management. * Managed engineering strategy, roadmap, OKRs, budgeting, organizational design, hiring, performance management, and leadership development. * Served as a core member of the company leadership team, contributing to company strategy, culture and execution planning. * Partnered with Product, Research, Customer Success, and Go-to-Market leaders to convert advanced AI research into production customer value. * Built operating mechanisms for monthly and quarterly planning, program reviews, operational health reviews, staff meetings, engineering all-hands, and cross-functional execution. * Coached and developed leaders, including engineering directors, managers, tech leads and staff engineers. * Drove engineering standards across distributed systems, infrastructure, machine learning, developer experience, reliability, and production operations.

    • Head of Engineering (Founding Member)
      Jul 2020 - Jan 2023 · 2 yrs 7 mos

      Joined Phaidra at inception as founding engineer and Head of Engineering. Built the first engineering team, core architecture, and production platform for autonomous AI agents operating mission-critical industrial systems in real-time. * Designed and built the initial architecture across data ingestion, time-series pipelines, agent training, inference, observability, orchestration, and customer deployment. * Led the engineering push from prototype to live customer deployments, including incident response, war rooms, reliability hardening, and production operations. * Made foundational build-versus-buy decisions across cloud infrastructure, machine learning infrastructure, observability, CI/CD, and developer tooling. * Established software engineering standards, infrastructure practices, testing systems, and operational discipline as the company scaled beyond early-stage execution.

  • Co-Founder & CTO at Various Startups
    2017 - 2020 · 3 yrs

    Founded and operated two consumer and marketplace startups across real estate technology and e-commerce. Built products, teams, technology platforms, and early go-to-market motions from zero to launch. * Founded and led Instant Home, an online-to-offline real estate technology platform for the Indian market, spanning consumer search, agent/seller/landlord workflows, 3D walkthroughs & inspections and pricing intelligence. * Founded and led an e-commerce and logistics startup with a personalized discovery and circular-economy model. * Built and managed cross-functional teams across software engineering, product management, machine learning, design, growth, operations, and domain experts. * Owned technology architecture, product strategy, hiring, roadmap, go-to-market experimentation, and operational execution. * Built backend systems for marketplace workflows, inventory/logistics complexity, pricing intelligence, customer dashboards, and partner integrations.

  • Amazon Web Services (6 yrs 1 mo)
    • Engineering, AWS IoT
      2015 - 2018 · 3 yrs

      Founding engineer on AWS IoT Core. Helped design and build critical components of the Message Broker and Device Gateway, including high-throughput publish/subscribe infrastructure, subscription storage, partitioning, recovery, anti-entropy, fanout, and connection-state systems. * Built distributed systems infrastructure designed for billions of connected devices and millions of transactions per second. * Designed strongly consistent storage and retrieval systems for topic subscriptions over a virtually unbounded topic namespace. * Built partitioning, snapshot, recovery, anti-entropy, and fanout mechanisms for high-scale message delivery. * Helped take AWS IoT from early development through launch and scale.

    • Engineering, AWS Simple Workflow
      2012 - 2015 · 3 yrs

      Built distributed workflow systems and developer frameworks for AWS Simple Workflow Service. * Designed and built Workflow Templates, a domain-specific language-based workflow language and execution engine that preceded AWS Step Functions-style visual workflow orchestration. * Owned and maintained AWS Flow Frameworks for Java and Ruby. * Contributed to service stability, scalability, and developer experience for the service.

  • Early Engineering Experience at Amazon
    2009 - 2012 · 3 yrs

    Amazon.com, IBM, Dassault Systèmes Built early-career experience across distributed systems, enterprise security, analytics, and software engineering. * Developed scalable analytics systems at AWS. * Worked on WebSphere Application Server Security at IBM. * Contributed to engineering software development at Dassault Systèmes.