Jonghoon Kim

Staff Backend Engineer at TwelveLabs

Seoul, South Korea

About

Software Engineer and Technical Leader with over a decade of experience across a wide range of high-growth domains. I have a proven track record of taking products from zero-to-one to massive scale, with a strong focus on building mission-critical, high-throughput, and cost-efficient systems. I am equally comfortable driving technical vision as a leader or owning complex implementation as a hands-on individual contributor. My goal is to apply my broad engineering background to solve ambiguous challenges and deliver high-impact products.

Experience

  • Staff Backend Engineer at TwelveLabs
    Jul 2026 - Present · 1 mo

  • Head of Technology at Toss Place(토스플레이스)
    Dec 2024 - Jul 2026 · 1 yr 8 mos

    - Defined and executed a long-term technology vision centered on SDK, Plugin, and Domain Platform strategy, enabling faster and more consistent product development across teams. - Led and scaled a cross-functional tech organization, including hardware, client, and server engineering teams. - Effectively communicated complex technical concepts and trade-offs to business stakeholders, bridging the gap between engineering and executive decision-making.

  • Team Leader at Karrot
    Nov 2020 - Nov 2024 · 4 yrs 1 mo

    - Led the development and operation of a last-mile delivery platform optimized for hyperlocal logistics. - Built routing and optimization engines leveraging OSM data to improve delivery efficiency and ETA accuracy. - Architected and scaled the company’s internal location and map platform, enabling its transition to a local super app.

  • Senior Research Engineer@AI Research Lab at Hyundai Motor Company
    Oct 2019 - Nov 2020 · 1 yr 2 mos

    - Delivered an intelligent ride-pooling service that matched passengers and generated real-time optimized shared routes. - Built a reusable microservices toolkit in Go to streamline service development and deployment. - Designed a data ingestion pipeline to collect and structure multi-source event data for product insights and system monitoring.

  • Software Engineer/Technical Leader at 카카오모빌리티(Kakao mobility)
    Aug 2017 - Oct 2019 · 2 yrs 3 mos

    - Re-architected a system to integrate multiple mobility services into a unified super app experience. - Built an API Gateway that treated servers as composable functions, enabling safe and flexible orchestration. - Led cross-team technical initiatives, aligning platform design with product goals.